Construction accounting in Oklahoma isn’t the same as accounting for any other small business — and if your CPA treats it that way, you’re flying blind on the numbers that actually decide whether your jobs make money. Wilburn CPA is a Tulsa-based CPA and fractional CFO firm built for custom home builders, high-end remodelers, and trades contractors across Oklahoma and the surrounding Central Time Zone. We turn job costing, WIP schedules, markup, and JobTread bookkeeping into numbers you can actually run your business on.
Why Builders Need Construction-Specific Accounting
Most bookkeepers can reconcile a bank account. Far fewer can tell you whether the custom home you just finished actually made the margin you priced it at. Construction is a job-based, long-cycle business: revenue and costs land in different months, retainage sits on the balance sheet, change orders move the target, and a single mispriced job can quietly erase the profit from three good ones.
That’s why generic accounting fails builders. You need books built around the way construction money actually moves — accrual-basis financials, job-level cost tracking, and reporting that ties back to each project. Below are the four areas where we most often find the difference between a builder who’s guessing and one who knows.
WIP Schedules — Know Where Every Job Really Stands
A work-in-progress (WIP) schedule is the single report that tells you — and your bank, bonding agent, or surety — whether your open jobs are over- or under-billed and how much profit is still coming. Without one, you can look flush with cash while you’re actually spending money you’ve already billed but haven’t earned. Overbilling feels like cash today and becomes a cash-flow cliff tomorrow.
We build and maintain WIP schedules using the percentage-of-completion method so your financials reflect true earned revenue, not just what you’ve invoiced. Want the mechanics first? Read What Is a WIP Schedule — and Why Every Custom Builder Needs One, or grab our free WIP Schedule Template to see it in action.
Job Costing — Which Jobs Actually Make Money
Ask most builders which job made the most money last year and you’ll get a gut-feel guess, not a number pulled from the books. Job costing closes that gap. When every dollar of labor, materials, subs, and equipment is tagged to the right job, you can finally see real gross margin by project — and stop repeating the work that loses money while chasing the work that makes it.
We set up job-costing structures in QuickBooks Online (and inside JobTread) so profitability shows up cleanly the moment a job closes. Start with Job Costing 101: How to Know Which Jobs Are Actually Profitable.
Markup vs. Margin — Pricing to Cover Overhead and Profit
Here’s the mistake that quietly underprices more custom builders than any other: charging a flat markup and assuming it covers overhead. It usually doesn’t. Markup and margin are not the same number, and if you price off the wrong one, you can run a busy, growing business straight into a cash crunch. As your job volume shifts, your overhead-loaded markup has to shift with it.
We help you calculate the real markup you need to hit your target profit — and revisit it as the business changes. Read Markup Isn’t Margin: The Overhead Blind Spot That’s Underpricing Your Jobs, then run your own numbers with our free Job Cost Markup Calculator.
JobTread + QuickBooks — Clean Books After Every Job
You run your jobs in JobTread — budgets, change orders, schedules, client communication, all in one place. The hard part is what happens after a job closes: making sure the accounting side ties out so you can trust the profit number. As a JobTread Certified Bookkeeper, Ron sets up job-costing structures, WIP tracking, and clean reconciliation between JobTread and QuickBooks Online — so your numbers are trustworthy the day a job closes, not six months later.
See how we support JobTread users →
Cash Flow & Fractional CFO Support
Clean books are the foundation; using them to make decisions is where a fractional CFO earns their keep. For project-based businesses, cash flow is the number that keeps you up at night — money is tied up in jobs long before it lands in the bank. We build rolling forecasts so you can time draws, payroll, and major purchases with confidence instead of hope.
Not sure whether your P&L is even telling you the truth? Start with Cash Basis vs. Accrual Accounting for Builders, download our free 13-Week Cash Flow Forecast, or see the full scope of our outsourced accounting and fractional CFO services.
Serving Custom Builders Across Oklahoma and the Central Time Zone
We’re based in Tulsa and work with custom home builders and remodelers throughout Oklahoma — Tulsa, Oklahoma City, Broken Arrow, Owasso, Edmond, and beyond. Because our accounting and CFO work is done virtually, we’re not limited to local clients: we serve construction businesses across the Central Time Zone, including Texas, Kansas, Arkansas, and Missouri. Wherever you build, you get a CPA who understands construction and is available when you need answers — not a once-a-year tax preparer.
Based in the Tulsa metro? See our dedicated Tulsa construction accountant & fractional CFO page.
Building in the Oklahoma City metro? See our dedicated Oklahoma City construction accountant & fractional CFO page.
Why Work With Wilburn CPA
Ron Wilburn has been a licensed CPA since 1992 — but the experience that shapes how he works is having run a construction business, not just audited one. That means you’re not explaining draw schedules, retainage, or change orders to your accountant; you’re working with someone who already speaks the language. As a JobTread Certified Bookkeeper serving builders in the $1M–$15M range, Wilburn CPA combines CPA-level accuracy with fractional CFO strategy — the complete financial partnership without the cost of a full-time hire. More about Ron and the firm →
Frequently Asked Questions
Do I need a construction-specific accountant, or will any CPA do?
Any CPA can file your taxes. Very few can produce a reliable WIP schedule, set up job costing that holds up, or tell you whether your markup covers overhead. If you want financials you can make decisions on — not just a compliance filing — construction-specific matters.
Do you work with builders outside Oklahoma?
Yes. We’re based in Tulsa but work virtually with custom builders and remodelers across the Central Time Zone, including Texas, Kansas, Arkansas, and Missouri.
Do you use accrual or cash basis for construction clients?
For most builders we work on an accrual basis, using the percentage-of-completion method, because that’s what reveals true job profitability and satisfies banks and sureties. We’ll still plan around the tax method that’s most advantageous for your situation. See our breakdown of cash vs. accrual for builders, and browse all FAQs.
Ready for Books You Can Actually Build On?
If you’re a custom home builder or remodeler tired of guessing which jobs make money, let’s fix the numbers. Schedule a no-obligation discovery call and see what construction accounting done right looks like for your business.