Accounting for Remodelers: 5 Inside Tips

You can demo a bathroom in an afternoon. Reconciling three months of job receipts? That can eat a whole weekend you don't have.

Remodeling moves fast. Your jobs are short. They overlap. And almost every one of them changes the minute you open a wall. A bathroom refresh turns into a subfloor replacement. A kitchen job picks up a pantry. The homeowner decides they want the upgraded tile after all.

That constant motion is exactly why accounting for construction works differently from bookkeeping for a typical small business. A retail shop sells a product, records the sale, and moves on. You sell a project that unfolds over weeks, with costs landing before, during, and after you get paid. If your books only show what came in and what went out this month, they can't tell you which jobs actually made you money.

And right now, every job needs to pull its weight. The Harvard Joint Center for Housing Studies' October 2026 remodeling forecast expects homeowner spending on improvements and repairs to inch from about $524 billion in late 2026 to $527 billion by the third quarter of 2027, with growth slowing along the way. In a flat market, you can't count on more volume to cover thin margins. You need to know your numbers.

This post is for two kinds of remodelers. If you own your business and handle the books yourself after the crew goes home, these tips will help you build a system that actually works. If you're growing and starting to wonder whether it's time to hand off your construction bookkeeping, they'll show you what good looks like, so you know what to expect from outside help.

Here are five inside tips that experienced construction accountants use every day.

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Tip 1: Make Job Costing Non-Negotiable

Job costing means tracking every dollar of income and every dollar of cost back to the specific job that created it. It's the single most important habit in construction bookkeeping.

Think of it this way. Your profit and loss statement tells you how the whole team played this season. Job costing tells you how each player did. Without it, a money-losing job can hide behind two profitable ones for months, and you'll keep bidding that kind of work the same way.

With it, you can answer questions like: Did the Henderson kitchen make the margin we bid? Are basement finishes more profitable than baths? Is one crew consistently running over on labor? Those answers shape better bids, better pricing, and better decisions about which work to chase.

Track Labor, Materials, and Subs by Project

Most remodeling costs fall into three big buckets. Each one needs to be tied to a job.

• Labor. Track hours by job, every day. Then make sure you're using the true cost of those hours. A carpenter you pay $30 an hour costs you more than $30 once you add payroll taxes, workers' comp, and any benefits. That fully loaded number is called the burdened labor rate, and it's the one your job costs should use.

• Materials. Tag every receipt to a job when you buy, not at the end of the month. The classic trap is one big supply house run for three different jobs on one receipt. Split it on the spot, or write the job names on the receipt before you leave the parking lot.

• Subcontractors. Code every sub bill to the right job. While you're at it, collect a W-9 from each sub before you pay them the first time. You'll thank yourself at 1099 season.

Don't forget the smaller costs, either. Permits, dumpster fees, equipment rentals, and portable toilets are all job costs. Left uncoded, they quietly inflate your overhead and make every job look more profitable than it really was.

The inside tip: code it the day you spend it. Job costing falls apart when it becomes a once-a-month memory exercise.

How to Set Up QuickBooks for Contractors: Job Costing Tracking

If you use QuickBooks Online, you already have solid job costing tools. Here's how to set up QuickBooks for contractors job costing tracking the way a ProAdvisor would.

1. Check your plan. Job costing in QuickBooks Online runs through the Projects feature, which is available on the Plus and Advanced plans. Simple Start and Essentials don't include Projects.

2. Create a project for every job. Set up the homeowner as a customer, then add a project under them for each job. From there, tag every estimate, invoice, bill, expense, and timesheet to that project.

3. Build your products and services list around cost codes. Create items that match how you estimate: Demolition, Framing, Electrical, Plumbing, Drywall, Cabinets and Countertops, Finish Carpentry, and so on. When your estimates and your expenses use the same items, comparing the two becomes easy.

4. Use classes for the bigger picture. Classes (also on Plus and Advanced) let you tag transactions by business segment, like kitchens versus baths, or remodeling versus insurance restoration. Projects tell you how one job did. Classes tell you how a whole line of work is doing.

5. Assign labor to projects. If you run payroll through QuickBooks and your team logs time to projects, labor costs flow into your project reports. That's how you see true labor cost per job instead of guessing.

6. Review project reports regularly. Look at each project's profitability at least monthly while it's open, and again at closeout.

One more thing worth knowing: in August 2026, Intuit built construction financials into QuickBooks Online Advanced at no extra cost. That includes budget-versus-actual tracking, change order management, AIA-style progress billing tied to project phases, and WIP reporting. If you're on Plus and those features sound like what you need, it may be worth comparing plans.

The inside tip: set this up before your next job starts. Cleaning up six months of uncoded transactions later is slow, painful, and expensive.

Tip 2: Budget Before You Bid

A lot of remodelers price jobs from experience and gut feel. That works until it doesn't. One underestimated job can wipe out the profit from three good ones.

Here's the key distinction. Your price is what the homeowner pays. Your budget is what the job should cost you. The gap between the two is your gross profit. If you don't build the budget first, you're guessing at that gap.

How to Create a Construction Budget

Wondering how to create a construction budget that actually holds up? Follow these steps.

1. Define the scope in detail. Walk the job, take photos and measurements, and write down exactly what's included and what isn't. Vague scope is where budgets go to die.

2. Break it into line items. Use the same cost codes you set up in QuickBooks. Demolition, rough plumbing, electrical, drywall, tile, trim, paint, cleanup. Each one gets its own line.

3. Price every line. Get current material quotes from your suppliers, since prices move. Estimate labor hours and multiply by your burdened labor rate. Get sub quotes in writing. Then add the other direct costs: permits, dumpster, equipment rental, and final cleaning.

4. Add contingency for behind-the-wall surprises. Remodelers know the drill. You open a wall and find rot, outdated wiring, or plumbing that was never up to code. Build a contingency line into your budget for the unknowns. A common rule of thumb is somewhere in the 10% to 20% range, often toward the higher end on older homes. Then decide how your contract handles it: as an allowance, or through signed change orders.

5. Add overhead and profit. Your truck, insurance, office, software, and your own salary aren't job costs, but every job has to help pay for them. Know your annual overhead and make sure each bid carries its share before you add profit on top.

A quick warning about markup versus margin, because it trips up a lot of owners. If a job costs you $10,000 and you add a 25% markup, you charge $12,500. Your profit is $2,500. But your margin is $2,500 divided by $12,500, which is 20%, not 25%. If your target is a 25% margin, a 25% markup won't get you there.

Compare Estimates to Actuals After Every Job

Your budget is only half the story. The other half is what actually happened.

After every job closes, spend 30 minutes comparing your estimate to your actual costs, line by line. Ask yourself:

• Which line items ran over, and why?

• Did labor hours match the budget, or did a phase drag on?

• Was every change order written, signed, and billed?

• Did the contingency get used, and was it enough?

Then feed what you learn into your next bid. If tile installs keep running 15% over, adjust your tile labor estimate. If a sub's final bills keep creeping above their quotes, have a conversation.

Change orders deserve special attention here. Every scope change should be in writing and signed before the work happens, and it should update both your budget and your invoicing. Unbilled change orders are one of the most common ways remodelers lose money on jobs that looked profitable on paper.

The inside tip: your last ten finished jobs are the best estimating tool you own. Use them.

Tip 3: Learn the WIP Report

If job costing is the heart of construction accounting, the WIP report is the pulse check. Many small remodelers have never run one. The ones who do tend to catch problems while there's still time to fix them.

WIP Meaning in Plain Terms

So what's the WIP meaning? WIP stands for work in progress. A WIP report lists every open job and compares what you've billed against what you've actually earned so far.

How do you know what you've earned? The most common method is cost-to-cost. You divide the costs you've incurred so far by your total estimated costs. That gives you a percent complete, which you apply to the contract price.

Here's a simple example. You're doing an $80,000 kitchen remodel. Your budget says it'll cost you $60,000. So far, you've spent $30,000. That means the job is 50% complete, and you've earned 50% of the contract, or $40,000.

Now compare that to what you've billed:

• If you've billed $50,000, you're overbilled by $10,000. Your bank account looks great, but you've collected money for work you haven't done yet. The costs to finish are still coming. On the balance sheet, overbillings are a liability.

• If you've billed $30,000, you're underbilled by $10,000. You've done the work but haven't billed for it, so you're essentially financing the homeowner's project with your own cash. Underbillings show up as an asset.

Neither is automatically bad. Some overbilling is common when deposits come in up front. But patterns matter. Chronic underbilling often signals a cash flow problem or slow invoicing. Heavy overbilling can mean you're spending tomorrow's job money today, which is how good contractors end up short when a job wraps up.

How Cost Accounting Ties WIP to Real Profitability

Cost accounting is the system you use to capture, classify, and assign costs to jobs. It's the foundation your WIP report sits on. And here's the catch: your WIP report is only as accurate as the job costs and estimates feeding it.

If materials get coded to the wrong job, that job's percent complete is wrong. If percent complete is wrong, earned revenue is wrong. Suddenly a job looks overbilled when it's not, or profitable when it's quietly losing money.

That's why good cost accounting and a regular WIP review go hand in hand. Each month, update your estimated cost to complete on every open job. If that number keeps climbing, your projected margin is shrinking. Accountants call this profit fade, and the WIP report is where you'll spot it first, while the job is still open and you can still do something about it.

There's a bonus, too. As your business grows, banks and surety companies often ask for a WIP schedule when you apply for a line of credit or bonding. Having one ready makes you look like the established, well-run company you are.

The inside tip: run your WIP report monthly, on the same day each month, right after your books are reconciled.

Tip 4: Don't Lose Track of Retainage

Retainage is the portion of each payment that a customer holds back until the job is finished. It protects the owner by giving the contractor a reason to finish the punch list and close out the job properly.

Retainage is commonly somewhere between 5% and 10% of each payment. The exact amount is set by your contract, and some states limit how much can be withheld or when it must be released, so check the rules where you work.

For many remodelers, retainage doesn't come up on every direct-to-homeowner job. It's more common when you work as a subcontractor to a general contractor, take on commercial or multifamily work, or handle larger projects. But when it does show up, it's real money, and it's easy to lose track of.

Record It as Its Own Receivable or Payable

Say you send a $20,000 progress invoice on a contract with 10% retainage. Your customer pays $18,000 and holds back $2,000.

If you're on accrual accounting, you still record the full $20,000 as earned. But that $2,000 shouldn't sit in your regular accounts receivable. Move it into a separate account called Retainage Receivable.

Why bother? Because if it's lumped in with everything else, your AR aging report becomes misleading. That $2,000 will look 60 or 90 days past due when it isn't due yet. You'll either chase money you can't collect or, worse, stop paying attention to the aging report altogether.

The same goes in reverse. If you hold back retainage from your own subs, track it in a separate liability account called Retainage Payable. That way you always know exactly what you owe them, and when.

Set Reminders to Collect at Project Close

Here's the part that keeps construction accountants up at night. Retainage often represents a big chunk of a job's profit.

Picture a $100,000 job with a 15% profit margin. That's $15,000 in profit. With 10% retainage, $10,000 is sitting with your customer at the end of the job. That's two-thirds of your profit waiting on a final invoice. Forget to collect it, and the job you thought made money barely broke even.

Protect it with a simple system:

• Know the release terms. Read your contract for what triggers release. It might be substantial completion, final inspection, a finished punch list, lien waivers, or closeout documents.

• Set reminders the day the job starts. Put the expected release date on your calendar or in your project software.

• Finish the punch list fast. The longer punch items drag, the longer your money sits.

• Send a formal retainage invoice. Don't assume the customer will remember. Bill it like any other invoice and follow up.

• Release your subs' retainage on time. Once you're paid, pay out what you held back according to your subcontract terms. It keeps good subs loyal.

Tip 5: Use the Right Tools

Spreadsheets get most remodelers started. But once you're running several jobs at once, juggling change orders, and billing in stages, spreadsheets start to break. Numbers get typed twice. Versions multiply. Something slips.

That's where construction billing software earns its keep.

What to Look for in Construction Billing Software

Not every tool fits every remodeler. Before you buy, look for these features:

• Progress billing. You should be able to bill by percentage complete or by milestone. If you work with general contractors, look for AIA-style billing that follows the standard G702 and G703 application-for-payment format.

• Change order management. Change orders should be easy to create, send for signature, and approve. Once approved, they should update both the job budget and the invoice automatically.

• Retainage tracking. The software should calculate retainage on each invoice and track what's still owed to you, and what you owe your subs.

• Job costing by cost code. You want budget-versus-actual views that use the same cost codes you estimate with.

• QuickBooks integration. This is a big one. Look for a reliable two-way sync with QuickBooks so you're not entering the same bill or invoice twice. Ask exactly what syncs: customers, projects, cost codes, bills, invoices, and time entries.

• Field-friendly time tracking. Your crew should be able to clock in and out by job from their phones.

• Online payments and a client portal. The easier it is for homeowners to approve change orders and pay invoices, the faster you get paid.

You have a few paths. QuickBooks Online Advanced now has construction financials built in, including progress billing, change orders, and WIP reporting. Many remodelers instead pair QuickBooks Online Plus with a dedicated construction management platform that syncs to QuickBooks, such as Buildertrend or JobTread.

The inside tip: don't pay for features you'll never use. Take advantage of free trials, test the QuickBooks sync with real transactions, and pick the tool your team will actually use every day. The fanciest software in the world won't help if your crew won't touch it.

Signs DIY Construction Bookkeeping Is Costing You Time and Margin

Doing your own books makes sense when you're starting out. Every dollar counts, and nobody knows your jobs better than you do. But at some point, the hours you spend at the kitchen table start costing more than they save.

Watch for these signs:

• You're more than a month behind on reconciling your bank and credit card accounts.

• You can't say with confidence which of your last five jobs was the most profitable.

• You judge how the business is doing by checking your bank balance.

• Change orders sometimes get done but never billed.

• You've collected retainage late, or found some you forgot about entirely.

• Tax season turns into a scramble for receipts and mileage logs.

• A lender or bonding company asked for a WIP report, and you weren't sure where to start.

• You're spending nights and weekends on bookkeeping instead of estimating, selling, or resting.

If two or three of these sound familiar, your books aren't keeping up with your business. That's not a failure. It's a sign you're growing.

Your time is worth the most on the job site and in front of customers. The goal isn't to become an accountant. It's to have numbers you can trust, so every bid, hire, and big decision rests on facts instead of hunches.

That's where Okie Accounting Group comes in. We've supported remodelers, contractors, and real estate businesses since 2018, and as QuickBooks ProAdvisors, we know how to set up job costing, build clean WIP reporting, and keep construction books current month after month. Whether you want help getting your system set up so you can keep running it yourself, or you're ready to hand off the bookkeeping entirely, we'll meet you where you are.

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