Bookkeeper for Remodeling Contractors

The reason remodeling bookkeeping is its own thing is the gap between the gross margin and the net margin. The National Association of Home Builders reported the average remodeling company earned a 29.9% gross margin in 2024, which is the profit left after direct job costs. The same companies netted only 5.3% after overhead. That gap is where the business actually lives: every dollar of overhead that is not tracked against the jobs that caused it quietly eats the 5.3% down toward zero.

How does money flow through a remodeling business?

The money comes in on a schedule that is set by the job, not by the month. Most remodelers collect a deposit before work starts, then progress draws at agreed milestones, and the final payment at completion. The number of draws and their size vary from company to company: some do 10% down and the rest on completion, others do a third at signing, a third at the midpoint, and a third at the end. There is no universal split because the terms are negotiated per job.

Two things about that rhythm matter for the books. First, a deposit is not revenue yet. It is a liability until the work is done, because if the job gets cancelled you owe the money back. Second, many remodelers hold back a retainage, meaning the client pays the final portion only after the punch list is done. That retainage is a real asset sitting on your balance sheet but it is not cash in the bank, and it is easy for it to disappear from the books entirely if nobody is chasing it at project close.

The other side of the rhythm is that the big costs come before the big payments. You buy materials up front, pay your crew weekly or biweekly, and the client's progress draw may not land until two or three weeks in. That means a remodeling business with a healthy annual profit can still feel cash poor in the first weeks of a job. The books need to show that timing clearly, so you can see whether the draw schedule you are negotiating is actually funding the work.

What costs matter most?

The costs split into three layers, and the books need to keep them separate. Direct costs are the ones that belong to a specific job: the lumber, the fixtures, the crew wages, the electrician you subcontracted. Indirect costs are things like equipment depreciation, the shop, and the project supervisor's salary. General and administrative costs are the office rent, the office manager, marketing, and your own salary. The standard advice in construction accounting is to keep direct costs as the first section of the income statement, because those are the ones that have to be matched against each job to know what the job earned.

The direct cost line is also the biggest one. NAHB data shows trade contractor costs alone dropped from 36% of revenue in 2021 to 30% in 2024, and that single swing was the main driver of the margin improvement. A remodeler who does not know what percentage of revenue is going to subcontractors is flying blind on the most volatile number in the business.

There are also costs that are easy to misclassify because they happen once per job. Permits and fees, equipment rentals, and the dumpster are all direct costs of the job they were bought for, but they are small enough that it is tempting to throw them into general overhead. If they go into overhead, the job that used them looks cheaper than it was and the overhead looks fatter than it is. The job costing fails, and the failure is invisible until you wonder why the jobs that should be profitable are not.

What commonly goes wrong?

The most common mistake is mixing business and personal money. Paying for materials with a personal card or taking cash from the job account for groceries will not sink the business by itself, but it makes it impossible to know whether a job actually made money. The fix is simple and standard: a dedicated business account and a designated owner draw, so the profit is knowable.

The second failure mode is treating all overhead as a single pile. If indirect costs and G&A ride inside job costs, or if job costs sit in a general expense account, the job-level comparison disappears. The standard practice is to require the same account structure across every project, so you can compare the profitability of a kitchen remodel against a bath remodel, or against last year's kitchen remodel.

The third one is the paperwork behind subcontractors. You need a certificate of insurance and a W-9 from each sub before they start, and you have to track 1099s at the end of the year. When that paperwork slides, the books do not fail immediately, but the compliance problem shows up at tax time and the missing insurance bites when a sub gets hurt on a job.

And there is the margin expectation gap. A lot of owners believe a good gross margin is 30% to 50%, because that is what is left before overhead. The industry reality is that a 30% gross margin commonly nets out to 5% to 6% after all the indirect and G&A costs. An owner who prices jobs at 30% gross and is surprised that the net is 6% does not have a pricing problem, they have an accounting education gap.

What should be tracked separately?

The one thing that has to be tracked separately is the job. Every cost that belongs to a specific project goes on that project's ledger, and every payment from that client gets matched to that same ledger. When the job closes, the total cost against the total revenue is the number that tells you whether that work was worth taking.

Within the job, the costs split the same way the work does: materials, labor, and subcontractors. A job that overruns on materials but comes in under on labor is a different problem than a job that blows the labor budget, and you want to be able to see which one happened.

A chart of accounts for a remodeling company should mirror how the work is estimated in the field. If you price jobs by material cost, labor hours, and sub quotes, then the accounts should be organized the same way. The best practice is to avoid a pile of subaccounts and instead use classes or divisions to tag each transaction to a job, so the account structure stays clean and every job carries the same cost categories.

Which reports or numbers matter?

The number that matters most is the one the standard report does not show you: the net margin per job. The profit and loss statement for the whole company is a summary. The job cost report is the detail under it, and it is where the decisions live. The question to ask is not "did we have a good year" but "which jobs made money and which ones lost it, and what did they have in common?"

The balance sheet matters more than most owners think. The NAHB data shows the average remodeling company grew its assets from $468,000 in 2021 to $668,000 in 2024, and over the same period owners' equity rose from 33% of assets to 50%. Remodelers are self-funding their growth out of retained earnings, which is a strong position, but it means the cash balance, the accounts receivable, and the retainage balance are the numbers that tell you whether you can take the next job without a cash crunch.

That table is the whole argument for job costing. The gross margin improved by more than five points and the net margin barely moved. The extra gross profit went somewhere, and the only way to know where is to track the costs against the jobs that caused them.

What decisions should the books support?

The books exist to answer the questions you ask before you commit the company's money: Should I take this job at this price? Should I buy that truck, or is a rental cheaper when I count the insurance and the maintenance? Should I hire a full-time crew or keep using subs? What is the actual markup I need to charge to cover my overhead and still net what I want to make?

Those questions all come back to the same thing: what did the last job really cost, including its share of overhead, and what did it really earn? If the books do not answer that, then pricing is a guess. The books should make the guess unnecessary.

One practical way remodelers set markups is a percentage over direct job cost. Owner forums discuss 15% to 25% markup when the overhead is modest, and 25% to 55% when the markup has to absorb the full overhead. The wide range is the point: the right markup for your company is the one that covers your specific overhead and leaves the net margin you want. The books are the only way to know what that number actually is.

If this all sounds like a lot of moving parts, it is. A good bookkeeping system for a remodeling company is not a shoebox of receipts sorted at tax time. It is a running set of books where every dollar is tagged to a job, the direct costs sit above the overhead, and the job cost report reconciles to the bank deposits. That is what makes the whole thing knowable.