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Construction Bookkeeping Services for Contractors

Your P&L says you made money last quarter. Your bank account disagrees. For a contractor, that gap almost always traces back to the same place: books built for a retail business, not a job-based one.

Construction is the one industry where revenue is earned over months, billed on a schedule that has nothing to do with when costs hit, and partially withheld until the punch list is closed. A generic chart of accounts cannot see any of that. We set up and run books that can — job costing, work-in-progress, retainage, and subcontractor compliance — so you know the margin on every job while it is still open.

QQuick Answer

Construction bookkeeping is job-level accounting: every dollar of labor, material, equipment, and subcontractor cost is coded to a specific job and phase, then compared against what has been billed on that job. The deliverable is not just a P&L — it is a job cost report and a work-in-progress (WIP) schedule that shows whether you are overbilled or underbilled on each contract.

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Who We Work With

Three business models, three completely different sets of books.

 

“Construction” is not one accounting problem. A general contractor managing ten subs on a commercial build has almost nothing in common, ledger-wise, with a two-truck HVAC company running service calls. We scope the engagement to which one you are.

GC

General Contractors

Multiple open contracts, heavy subcontractor spend, progress billing against a schedule of values, and retainage on both sides — withheld from you by the owner, and withheld by you from your subs.

Focus: WIP, pay apps, sub compliance
ST

Specialty Trade Subcontractors

Electrical, plumbing, HVAC, roofing, concrete, drywall. Fewer contracts but tighter margins, more material volatility, and a payment position that depends entirely on the GC above you.

Focus: lien rights, material costs, cash timing
RB

Residential Builders & Remodelers

Cost-plus and fixed-price homeowner contracts, allowances, frequent change orders, draw schedules tied to a construction loan, and a client who reads every invoice line.

Focus: change orders, allowances, draws

Service-and-repair work sits differently again: high transaction count, low dollar value per ticket, and no meaningful WIP. If most of your revenue is service calls rather than contracts, say so on the first call — you probably need less construction accounting than you think, and a lot more discipline on job-level material costs.

What’s Included in Our Construction Bookkeeping

Everything a job-based business needs, closed monthly and ready for your CPA.

 
JC

Job Costing by Phase

Labor, materials, equipment, and subs coded to the job and the cost code — not dumped into one “Job Expenses” bucket. You see gross margin per job, per phase, every month.

Answers: which jobs actually made money
WIP

WIP Schedule & Billing Position

A monthly work-in-progress schedule showing cost-to-date, percent complete, earned revenue, and whether each contract is overbilled or underbilled.

Required by most bonding companies and lenders
RT

Retainage Tracking

Retainage receivable is carried in its own account instead of being written off as a shortfall, so the cash you are owed after final acceptance never disappears from your books.

Recovers cash most contractors stop chasing
CO

Change Order Control

Approved change orders are added to the contract value in the books the month they are signed, so the WIP schedule stops showing a fake cost overrun on scope you were paid to add.

Stops phantom margin erosion
1099

Subcontractor & 1099 File

W-9s, certificates of insurance, and payment totals tracked per sub all year — not reconstructed in a panic in January. Year-end 1099-NEC filing is a report, not a project.

Threshold changed for [current_year] — see FAQ
EQ

Equipment & Overhead Allocation

Owned equipment is charged to jobs at an internal rate instead of sitting in overhead, so a job that ate three weeks of excavator time carries that cost.

Makes bidding data honest

On top of the construction-specific work, you get the standard monthly close: bank and credit card reconciliation, accounts payable and receivable, sales tax accrual where it applies, and a clean set of financials. If you are several months or several years behind, that is a different engagement — start with our Florida guide to clean-up bookkeeping and move to the monthly service once the file is current. Field payroll, certified payroll, and prevailing-wage reporting are handled through our monthly bookkeeping service.

We work in QuickBooks Online and Xero, and we integrate with the field tools you already use for time tracking and project management. We do not ask you to change how the crew reports hours — we change how those hours land in the ledger.

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Progress Billing and AIA Pay Applications

G702, G703, and the schedule of values — set up once, then run monthly.

 

On commercial and public work, you do not send an invoice. You submit a pay application, and the two standard forms are AIA G702 (Application and Certificate for Payment) and its companion G703 (Continuation Sheet). Getting them right is a bookkeeping function, not an admin one, because every figure on them has to reconcile to your ledger.

G703 breaks the contract sum into line items following a schedule of values you prepare at the start of the job. Each month, every line carries:

  • Scheduled value for that line
  • Work completed in previous periods, and work completed this period
  • Materials presently stored but not yet installed
  • Total completed and stored to date, and percent complete
  • Balance to finish, and retainage withheld

G702 summarizes all of that into the contract sum to date, change order totals, retainage withheld, less previous payments, and the current payment due — which the contractor signs, has notarized, and submits to the architect for certification.

Two things go wrong constantly. First, the schedule of values is written to win the job, not to be billed against — front-loaded line items that the architect later refuses to certify, or line items so broad that you cannot demonstrate percent complete. Second, approved change orders are billed but never added to the contract sum in the accounting file, so the books and the pay app permanently disagree.

We build the schedule of values into the accounting file as the job structure, so the pay application is generated from your job cost data instead of being rebuilt in a spreadsheet each month. Stored materials get their own line and their own asset treatment. Retainage withheld on the pay app posts to retainage receivable, not to a revenue shortfall.

!Why the architect rejects a pay app

In our experience the three most common causes are arithmetic that does not tie between G703 and G702, a percent-complete figure not supported by the cost data, and missing conditional lien waivers from subs for the prior payment. All three are prevented in the close, not in the submittal.

Certified Payroll, Prevailing Wage, and Labor Burden

What triggers it in Florida, and what it costs you if the reports are late.

 

Florida does not have a state prevailing wage law of its own. For a Florida contractor, prevailing wage obligations come from the federal side: the Davis-Bacon Act and related acts apply when a project is federally funded or federally assisted — federal buildings, federally funded highway and infrastructure work, projects paid through federal grants, and federally assisted disaster recovery work, which matters here after every major storm season.

When Davis-Bacon applies, certified payroll reports are due weekly, typically on Form WH-347, to the contracting agency — listing each worker, classification, hours by day, rate, gross pay, deductions, and fringe benefits, with a signed statement of compliance. Weekly means weekly, including weeks with no work on that project, and late or inconsistent reports are one of the fastest ways to have payments withheld on a federal job.

The bookkeeping consequence goes beyond the form. Prevailing wage work forces you to track hours by classification and by project, and to account for fringe benefits either as paid benefits or as cash added to the hourly rate. That same detail is what makes labor burden allocation possible: taxes, workers’ compensation, benefits, and paid time off charged to the job instead of sitting in overhead. Without it, every job looks more profitable than it is, by roughly the size of your burden rate.

Practical note

The fastest way to fail a Davis-Bacon audit is a worker classified one way on the certified payroll and another way in your accounting file. Classification lives in one place — the payroll record — and everything else reads from it.

We keep prevailing wage jobs in their own cost structure, run the weekly reports off the payroll data rather than reconstructing them, and reconcile the certified payroll totals back to the general ledger monthly. Non-federal work runs through the standard monthly bookkeeping service without the extra reporting layer.

Signs Your Construction Books Need Help

If three or more of these sound familiar, the problem is structural, not clerical.

 
 
You find out a job lost money after it closes

Without job costing during the build, the loss shows up in the annual return — twelve months too late to renegotiate anything.

 
A profitable month leaves you short on cash

Classic underbilling. You have earned revenue you have not invoiced yet, and a WIP schedule would have caught it in the close.

 
Your bonding agent or lender asked for a WIP schedule and you did not have one

Surety and bank underwriting run on WIP. No schedule usually means a smaller bonding line than your balance sheet deserves.

 
Retainage is a number you keep in your head

If withheld amounts are not sitting in a retainage receivable account, some of that cash will simply never be collected.

 
You chase W-9s in January

A subcontractor who will not produce a W-9 after the job is done is a backup withholding problem, not a paperwork problem.

 
Materials and personal purchases share a card

Fixable in a week, but it makes every job cost number above it unreliable until it is fixed.

None of these are unusual. In our work with contractors, the most common root cause is a chart of accounts that was never rebuilt after the business grew past one crew — the books still describe a one-truck operation.

Florida Compliance Built Into the Monthly Close

The rules that hit Florida contractors specifically — and where they land in your books.

 

Florida has no state personal income tax, so for a sole proprietor, partnership, S-corp, or most LLCs, the books feed straight into the federal return with no separate state income filing on the owner’s distribution. That is the good news, and it is why so many contractors assume Florida is a light-compliance state. The heavier obligations sit somewhere else.

Sales and use tax: you are usually the end consumer

Under Florida Administrative Code Rule 12A-1.051, a contractor who improves real property under a lump-sum, cost-plus, guaranteed-price, or upset-price contract is treated as the ultimate consumer of the materials. You pay sales tax when you buy the material and you do not charge sales tax to the property owner on the contract price. A “retail sale plus installation” contract works the opposite way: materials are itemized, bought for resale, and tax is collected from the customer on the goods but not the installation labor. Which structure your contract uses changes the entries in your books, so it belongs in the close, not in a shoebox.

Two details that regularly cost Florida contractors money. First, materials pulled from your own inventory or fabricated in your own shop for a real property job generally trigger use tax on the fabrication cost under Rule 12A-1.043 — an accrual most contractors never make. Second, the county discretionary sales surtax applies only to the first $5,000 of a single item of tangible personal property, while the 6% state rate applies to the whole amount. On a $60,000 piece of equipment, the surtax stops after $5,000 — and being overcharged on the rest is common. Surtax rates vary by county, and two counties currently levy none at all.

Workers’ compensation: construction starts at one employee

This is the single biggest Florida-specific trap in the trade. Under Florida’s Division of Workers’ Compensation rules, a non-construction employer needs coverage at four or more employees. A construction employer needs coverage at one — and that count includes corporate officers and LLC members unless they have filed and been granted an exemption. Your payroll register and your subcontractor file are the evidence in a compliance audit, which is why we keep certificates of insurance attached to the vendor record instead of in an email folder.

Lien rights: the 45-day Notice to Owner

Florida’s construction lien law (Chapter 713, Florida Statutes) is unforgiving about dates, and the dates are driven by records you either kept or did not. A lienor who does not have a direct contract with the owner generally must serve a Notice to Owner within 45 days of first furnishing labor, services, or materials. Miss it and the lien right is typically gone, no matter how good the debt is.

From there, a Claim of Lien must be recorded within 90 days of final furnishing, and an action to foreclose must be filed within one year of recording — a period the owner can move to shorten. Every one of those clocks starts from a date in your job records, which is why first-furnishing and last-furnishing dates belong in the accounting file per job, not in a project manager’s memory. We flag them; your construction attorney handles the notices.

When workers’ compensation becomes mandatory in Florida

Employee count that triggers coverage, by industry

Construction1
Non-construction4
Agriculture (regular)6
Agriculture (seasonal)12

Source: Florida Division of Workers’ Compensation. Bars show the threshold, not a proportion — construction is the outlier at one employee. Verify current rules before relying on this.

Payroll and the annual calendar

Florida reemployment tax applies to the first $7,000 of each employee’s wages, with new employers generally starting at a 2.7% rate, reported quarterly on Form RT-6 (due April 30, July 31, October 31, and January 31). Separately, every corporation and LLC files an Annual Report with the Florida Division of Corporations between January 1 and May 1 — the late penalty for a for-profit entity is $400, and it is not waivable. C-corps also file a Florida corporate income tax return; pass-through entities generally do not. One more recent change worth knowing: Florida’s state sales tax on commercial rent was repealed effective October 1, 2025, so if you lease a yard, shop, or office, that line should no longer carry state rent tax.

!Important

Florida rates, thresholds, and deadlines change. Everything above is general information current as of [current_month] [current_year] and should be confirmed against the Florida Department of Revenue, the Division of Corporations, and the IRS before you rely on it for a filing decision.

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Cash Flow: Why a Profitable Contractor Runs Out of Money

The gap between when you spend and when you collect, laid out month by month.

 

Construction has the longest and most punishing cash cycle of any small business category. You buy materials and pay labor in week one. You bill at the end of the month. The owner or GC pays on their own terms. And a slice of every payment is held back until the entire job is finished and accepted.

Stage Cash out Cash in Typical gap
Mobilization, permits, initial materials Full None Weeks 1–4
Field labor and subs, month one Weekly payroll, sub invoices Nothing yet billed Weeks 1–5
First pay application submitted Continuing Pending certification Weeks 5–9
Payment received, less retainage Continuing Most of the billed amount Ongoing
Substantial completion & punch list Punch list labor Final billing Weeks after completion
Retainage released None The withheld balance Months after your last cost

Illustrative sequence, not a promise of timing. Actual dates depend on your contract terms, the funding source, and whether the project is public or private.

Two mechanics inside that table cause most of the pain. Underbilling means you have done work you have not invoiced — the P&L records the earned revenue but no cash arrives, which is exactly the “profitable but broke” month. Overbilling is the opposite and feels great right up to the moment the job runs long and the billing you already collected has to be earned with costs you now fund yourself.

The WIP schedule is what makes both visible in the month they happen rather than at year end. We pair it with a rolling cash view: what is billed and uncollected, what is earned and unbilled, what retainage is outstanding on every job, and what is committed to subs and suppliers. That is a forecast built from your own ledger, not an estimate.

RRetainage in one line

Retainage is the single largest pool of money most contractors stop actively tracking. Withheld on every payment, released only after final acceptance, and frequently forgotten when a job closes quietly. If it is not sitting in a named receivable account with a per-job balance, assume some of it will never be collected.

Equipment, Depreciation, and Section 179

Where the truck and the excavator belong — in overhead, or on the job.

 

Equipment shows up in two different places in a contractor’s books, and confusing them wrecks your bidding data. For tax purposes it is a capitalized asset with a depreciation schedule. For job costing it should be charged to the jobs that used it, at an internal hourly or daily rate covering fuel, maintenance, insurance, and replacement.

Skip the second treatment and every equipment-heavy job looks artificially profitable while your overhead looks bloated. Excavation jobs subsidized by the overhead line is the most common version of this — the machine time is real, it just is not attached to the work that consumed it.

On the tax side, two provisions matter most to contractors buying equipment. Section 179 expensing has a deduction limit of $2,560,000 for tax year 2026, phasing out once qualifying property placed in service exceeds $4,090,000 and fully phased out at $6,650,000. Separately, bonus depreciation is generally 100% for qualifying property acquired and placed in service after January 19, 2025. Which one to use, in what order, and whether accelerating a deduction actually helps you depends on your income, your entity, and your bonding requirements — a heavy write-off that guts your balance sheet can cost you bonding capacity worth more than the tax saved. That trade-off is a conversation for your CPA; our job is to make sure the fixed asset register and the job cost data support whichever decision you make.

Section 179 for tax year 2026

Deduction cap and the spending levels that reduce it

Deduction limit$2.56M
Phase-out begins$4.09M
Fully phased out$6.65M

Source: IRC §179, inflation-adjusted for 2026. Bar width is proportional to the dollar figure. These limits change every year — confirm before filing.

The Software We Work In

We fit your stack. We do not sell you a platform.

 

There is no single right answer here, and any bookkeeper who insists otherwise is describing their own convenience. What matters is whether the accounting file can hold job-level detail and whether the field tools feed it without double entry.

Platform What it is Fits you if
QuickBooks Online General accounting with projects, classes, and job costing when configured properly You are under roughly $10M in revenue and want a system your CPA already knows
Xero General accounting with strong bank feeds and tracking categories You prefer the interface or already run on it; job costing needs more deliberate setup
Sage 100 Contractor / Sage Intacct Construction Construction-specific accounting with built-in job cost, pay apps, and certified payroll You run many concurrent contracts, prevailing wage work, or need native AIA billing
Foundation Construction-specific accounting built around job costing and payroll Payroll complexity — multiple trades, unions, or certified payroll — is your main pain
Procore / Buildertrend / Knowify Project management and field tools that integrate with the accounting file The field already runs on one of these and you want time and costs flowing through, not retyped

Platform capabilities change frequently. Confirm current features and integration support with the vendor before committing.

Most contractors we take on stay in QuickBooks Online and get what they were missing from a proper chart of accounts, real cost codes, and a monthly WIP schedule — not from a migration. Switching platforms will not fix books that were never structured for jobs; it will just move the problem into a more expensive system. When a move genuinely is warranted, we say so and we run it.

The Numbers We Report Every Month

Six figures that tell you whether the business is working.

 
1

Gross Margin by Job

Contract revenue less direct job costs, per contract and per phase, compared against the margin you bid. The single most useful number a contractor can see mid-job.

Target: within a few points of bid
2

Over / Underbilling

Earned revenue versus billed revenue on each open contract. Tells you whether you are financing the customer or the customer is financing you.

From the WIP schedule
3

Backlog

Signed contract value not yet earned. Your visibility into the next several months, and the first number a surety or lender asks for.

Drives hiring and bidding decisions
4

Retainage Outstanding

Total withheld across all jobs, aged, with the release condition for each. Money you already earned and have not been paid.

Often six figures, often forgotten
5

Working Capital

Current assets less current liabilities. Bonding capacity is largely a function of this number and your net worth, not your revenue.

Watched by sureties and lenders
6

Labor Burden Rate

The true cost of an hour of field labor once taxes, workers’ comp, benefits, and paid time off are included. Your bidding rate should be built on this, not on the wage.

Usually 25–40% above base wage

These arrive with the monthly financials and a short call. A number without a conversation is just a file in your inbox — the point is to catch the job that is drifting while there is still time to act on it.

Working Across State Lines

The moment a crew crosses into Georgia or Alabama, three separate registrations wake up.

 

Florida contractors take out-of-state work constantly — a Panhandle job that runs into Alabama, storm recovery in Georgia, a client with sites in two states. Each of those creates obligations that have nothing to do with your Florida filings, and the trigger is usually the first payroll, not the first contract.

Payroll follows the work, not the office

Income tax withholding generally follows where the employee physically performs the work. Send a crew to a state that has personal income tax — Georgia and Alabama both do, unlike Florida — and you may need to register with that state’s revenue department and withhold for the days worked there. Unemployment tax is separate again and follows its own state-by-state rules, which is why multi-state crews need hours tracked by state, not just by job.

Workers’ compensation does not automatically travel

A Florida workers’ compensation policy may or may not cover an injury on an out-of-state site, depending on the policy’s extraterritorial provisions and the other state’s law. Some states accept an out-of-state policy with the right endorsement; others require a policy written in that state. Confirm this with your carrier before the crew leaves — not after a claim.

Registration, licensing, and sales tax

Doing business in another state usually means registering as a foreign entity with that state’s secretary of state, and construction licensing rarely transfers — a Florida certified contractor is not automatically licensed in Georgia. Sales and use tax on materials follows the state where the property is improved, and the contractor-as-consumer treatment you rely on in Florida is not universal. Assume nothing carries over except your federal filings.

In the books, the practical requirement is simple to state and easy to neglect: every job carries its state, and labor hours are tagged by the state where they were worked. Retrofitting that after a year of mixed work is a reconstruction project. We set it up at onboarding when out-of-state work is even a possibility, and we flag the registrations you will need — the filings themselves are work for your CPA and, for licensing, your attorney.

How Onboarding Works

From first call to your first job cost report, typically in 30 days.

 
1
 

File review and scoping call

We look at your current file, your open contracts, and how you bid work. You get a written summary of what is broken and what it will take to fix — before you commit to anything.

2
 

Chart of accounts and cost code rebuild

We rebuild the account structure around jobs and cost codes that match how you actually bid, so estimate-versus-actual comparisons mean something.

3
 

Open contracts loaded into WIP

Contract value, approved change orders, cost-to-date, and billings-to-date for every open job. This is the step that produces your first real billing position.

Monthly close, on a fixed calendar

Reconciliations, job cost report, WIP schedule, and financials delivered by a set day each month, with a short call to walk through anything that moved. Documents move through an encrypted portal — never email attachments.

When tax season arrives, your CPA receives a package that already reconciles: financials, job cost detail, WIP schedule, fixed asset roll, and the 1099 file. If you also want the return handled, see tax preparation support.

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Outsource, Hire In-House, or Keep Doing It Yourself

An honest comparison, including the cases where you should not hire us.

 

Not every contractor needs an outsourced bookkeeper. Here is how the three options actually compare on the things that matter.

  Do it yourself In-house bookkeeper Outsourced firm
Best when One or two small jobs at a time, no employees, no bonding requirements High transaction volume plus a controller-level need, and you can supervise the role You need construction-specific expertise without a full-time salary
Real cost Your time — usually the most expensive hour in the company Salary, payroll taxes, benefits, software, and the cost of a bad hire A monthly fee scaled to volume and complexity
Construction expertise Whatever you have taught yourself Depends entirely on who you hire; construction-experienced bookkeepers are scarce Job costing, WIP, and pay apps are the standing skill set
Coverage risk The books stop when the season gets busy Vacation, illness, and turnover leave a gap A team, not a person
Weak point Errors compound quietly until tax season You are supervising work you may not be able to check Less day-to-day presence; needs a defined document flow

Costs vary widely by market and scope. Compare quotes on scope delivered, not on headline price.

The honest version: if you are a solo operator running two jobs a year with no employees, a well-set-up accounting file and a quarterly review is enough, and you should not be paying for a monthly close. The moment you add employees, subcontractors, bonding, or more than a handful of concurrent contracts, the math flips fast.

What Drives the Price

We quote per engagement, because two contractors with identical revenue can be five times apart in workload.

 

Our published monthly tiers are the starting point. Construction work usually lands in the upper two, because job costing, WIP reporting, and subcontractor compliance are real additional scope — not because contractors are charged more for being contractors.

Tier Monthly Typically fits
Starter $250–$350 Sole operator, low transaction volume, one or two jobs at a time, no payroll
Growth $450–$650 A few open jobs, a small crew, basic job costing, straightforward payroll
Pro $850–$1,200+ Multiple concurrent contracts, WIP schedule, subcontractor 1099 file, progress billing
Premium $1,500–$3,000+ High contract volume, AIA pay applications, certified payroll, multi-state or bonding reporting

Published tiers, current at the time of writing — confirm on the pricing page or in your quote. One-time cleanup of a file that is months or years behind is quoted separately from the monthly fee.

Within those bands, six things move your number:

Number of open jobs

The main driver. Six open contracts is a very different close than sixty, even at the same revenue.

Transaction and account volume

Monthly transactions, number of bank and card accounts, and how many crews are buying materials in the field.

Payroll complexity

Headcount, multi-state crews, union or prevailing-wage work, and whether certified payroll reports are required.

Condition of the current file

Months behind, unreconciled accounts, or a chart of accounts that needs a full rebuild all add one-time cleanup work.

Number of subcontractors

Each sub carries a W-9, an insurance certificate, and a year-end reporting position to maintain.

Reporting requirements

Bonding companies, lenders, and franchisors ask for specific schedules on specific dates. That is scope.

Cleanup is quoted separately from the monthly fee, as a one-time project, so you are never signing a permanently inflated retainer to pay for a problem that gets fixed once. Send us your last three months of statements and a list of open jobs and you will have a fixed quote — not a range.

Frequently Asked Questions

Construction Bookkeeping Questions We Get Weekly

Straight answers, with the source named where a rule is involved.

 
1. How is construction bookkeeping different from regular bookkeeping?+

Regular bookkeeping answers “how did the company do this month.” Construction bookkeeping answers “how is each job doing right now.” That requires a second layer of detail — every cost coded to a job and a phase — plus a work-in-progress schedule that compares what you have earned against what you have billed. A retail business has no equivalent of retainage, change orders, or an underbilled contract, so standard bookkeeping has no place to put them.

2. Do I have to use percentage-of-completion accounting?+

For tax purposes, IRC Section 460 generally requires percentage-of-completion for long-term contracts, but there is a small contractor exception: the contract must have been expected to finish within two years of starting, and your average annual gross receipts for the prior three years must be under the Section 448(c) threshold — $32 million for tax years beginning in 2026 under Rev. Proc. 2025-32, indexed annually. The One Big Beautiful Bill Act also broadened the home construction contract exception for contracts entered into in tax years beginning after enactment, removing the old four-unit limit so that apartment buildings, condominium projects, student housing, and similar residential work can qualify. Which method applies to you is a tax decision — bring it to your CPA, and we will make sure the books support either answer.

3. What is the 1099 threshold for subcontractors now?+

It changed. The One Big Beautiful Bill Act raised the Form 1099-NEC and 1099-MISC reporting threshold from $600 to $2,000 for payments made after December 31, 2025, with inflation indexing beginning in 2027; the backup withholding trigger moved to match. Payments made during 2025 still follow the old $600 rule. Our advice has not changed: collect a W-9 from every subcontractor before the first check regardless of the amount, because the threshold is a reporting rule, not a recordkeeping rule — and a missing W-9 is what forces backup withholding.

4. Do Florida contractors charge sales tax to the customer?+

Usually not. Under Rule 12A-1.051 of the Florida Administrative Code, a contractor improving real property under a lump-sum, cost-plus, guaranteed-price, or upset-price contract is the ultimate consumer of the materials: you pay sales tax at purchase and do not charge it on the contract. The exception is a true retail sale plus installation contract, where materials are itemized and sold to the customer. Because the treatment follows the contract structure, this is worth confirming with the Florida Department of Revenue or your CPA before a large job — the difference is not cosmetic.

5. When does a Florida construction business need workers’ comp?+

At one employee. Florida’s Division of Workers’ Compensation requires construction-industry employers with one or more employees — counting corporate officers and LLC members — to carry coverage, while non-construction employers are not required until four. Owners who qualify can file for an exemption for themselves. This threshold surprises new contractors constantly, and it is the reason your payroll records and subcontractor certificates need to be current, not reconstructed after an audit notice.

6. Can you fix books that are two years behind before you take over monthly?+

Yes, and that is the normal sequence. Cleanup runs as a separate fixed-fee project — reconciling accounts, rebuilding the chart of accounts and cost codes, reconstructing job cost history for contracts still open, and correcting prior-period entries. Once the file is current, the monthly engagement starts at a lower rate than the cleanup. Read more on our clean-up bookkeeping guide.

7. Can you prepare our AIA pay applications?+

Yes. We build the schedule of values into the accounting file so the G703 continuation sheet and the G702 summary are generated from your job cost data, with retainage, stored materials, and approved change orders already reflected. You still sign and notarize the G702 and submit it to the architect — that certification step is yours, and it cannot be delegated to a bookkeeper.

8. Do Florida contractors have to pay prevailing wage?+

Only on federally funded or federally assisted work, where the Davis-Bacon Act applies. Florida has no state prevailing wage law of its own, so a purely private or purely state-funded Florida job generally does not carry a prevailing wage obligation. When Davis-Bacon does apply, certified payroll reports are due weekly, normally on Form WH-347. Confirm the requirement in the contract documents for each specific project before you bid it.

9. How does bookkeeping affect our lien rights?+

Indirectly but decisively. Under Chapter 713 of the Florida Statutes, a lienor without a direct contract with the owner generally must serve a Notice to Owner within 45 days of first furnishing, and a Claim of Lien must be recorded within 90 days of final furnishing. Both clocks run from dates that live in your job records. We keep first-furnishing and last-furnishing dates per job so the deadlines are visible; the notices themselves are legal work for your construction attorney.

10. Should we switch to construction-specific accounting software?+

Usually not right away. Most contractors under roughly $10 million in revenue get what they were missing from a properly structured chart of accounts, real cost codes, and a monthly WIP schedule inside QuickBooks Online or Xero. A move to Sage, Foundation, or a similar construction platform makes sense when concurrent contract volume, union or certified payroll, or native AIA billing genuinely outgrow the general ledger — not as a way to fix books that were never structured for jobs.

Know Your Margin While the Job Is Still Open

The point of construction bookkeeping is not compliance. It is bidding the next job with real numbers.

 

A contractor who knows, in month three of a nine-month contract, that labor is running eleven percent over estimate can still do something about it. A contractor who finds out at tax time can only absorb it and repeat the mistake on the next bid. That timing difference is the entire product.

Send us your last three bank statements and a list of open contracts. We will tell you what your books are missing and what it costs to fix — at no charge, and with no obligation to hire us. If you would rather start by understanding the mechanics yourself, the common bookkeeping problems page lists the symptoms we see most often, and why contractors work with us explains how the engagement runs. Businesses outside construction can start with monthly bookkeeping or browse everything we do from the bookkeeping services in Jacksonville hub.

!Disclaimer

This page is general information, not tax or legal advice. Tax rules, rates, and thresholds change, and their application depends on your entity type, contracts, and jurisdiction. Consult a CPA or tax professional before acting on anything here.

Sources: IRS (IRC §460, §448(c), §179, Rev. Proc. 2025-32, Form 1099-NEC instructions); U.S. Department of Labor, Wage and Hour Division (Davis-Bacon Act, Form WH-347); AIA Contract Documents (G702 and G703 instructions); Florida Department of Revenue (Rules 12A-1.051 and 12A-1.043, sales and use tax, reemployment tax); Florida Division of Workers’ Compensation; Florida Division of Corporations (Sunbiz); Chapter 713, Florida Statutes (construction lien law). Updated [current_month] [current_year]. Pricing varies by number of open jobs, transaction volume, payroll complexity, and the condition of the current file — request a custom quote.

 

Katterhenry Financial Solutions provides full-service bookkeeping for small businesses, freelancers, and growing companies across the United States. We bring accuracy, clarity, and peace of mind to your financials — so tax season is never a surprise.

Our team of certified bookkeepers uses industry-leading software like QuickBooks Online, Xero, and FreshBooks to keep your books organized, reconciled, and audit-ready every single month. From day-to-day transaction recording to comprehensive financial reporting, we handle it all.

Whether you’re a solo entrepreneur or managing a team of 50, we tailor our services to fit your business needs — with transparent pricing and no hidden fees.