Bookkeeping for house flippers is project accounting, not rental accounting — every flip is its own job with its own profit-and-loss statement, and the only way to know whether a project actually made money is to track acquisition cost, rehab spend, holding costs, and sale proceeds against that one property from day one. A single shared bank account that mixes three active flips together tells you your total cash position, but it cannot tell you which property is on budget and which one is quietly eating your margin.
Most investors start a flip with some version of the 70% rule — purchase at roughly 70% of after-repair value minus estimated repairs — as a rough underwriting guideline. That number is only useful if the books track actual rehab spend against the original budget in real time. Flippers who reconcile at the end instead of the middle routinely discover the budget was blown weeks earlier, after the money is already spent and the exit price is fixed.
Rehab costs also need to be classified correctly at the line-item level: materials, labor, permits, and contractor draws all belong to the project's cost basis, while costs that do not add to the property (a parking ticket, a tool purchase for the business generally) do not. Getting this classification wrong either understates your true cost per flip or muddies deductible business expenses your CPA has to untangle later.
Hard money and private money loans are standard in fix-and-flip investing, and the draw schedule, points, and interest on that loan need to be tracked against the specific property they financed. Depending on your accounting method and how your CPA wants the project treated, loan interest and points may be capitalized into the project's basis rather than expensed as incurred — a distinction that changes both your in-progress numbers and your tax outcome, and one a generalist bookkeeper unfamiliar with real estate investing can easily miss.
Holding costs — property taxes, insurance, utilities, and loan carrying costs during the rehab and marketing period — are a second category that needs to sit separately from acquisition and rehab capital costs. Flippers who lump everything into one "property expense" bucket cannot see how much a slow rehab or a stalled sale actually cost them, which makes the next underwriting decision a guess instead of a lesson learned.
Subcontractors add a compliance layer on top of the accounting one: W-9 collection, 1099-NEC tracking, and lien-waiver documentation all need to happen before payment, not reconstructed in January across a dozen contractors and three properties. The same discipline construction bookkeeping applies to job costing and subcontractor compliance applies directly to a flip.
Tax treatment is where the stakes rise further. The IRS evaluates flip frequency and investment intent to decide whether a property is treated as a dealer sale (ordinary income, subject to self-employment tax) or an investment sale (capital gains) — and consistent, well-documented, property-level books are exactly what supports whichever position your CPA takes. This is not a call your bookkeeper makes; it is a reason the books need to be clean enough that your CPA can make it with confidence.
Investors running multiple flips at once need two views at once: a property-level P&L for every active project, and a portfolio roll-up that shows which flips, which zip codes, and which contractor relationships are actually worth repeating. Without both, growth just means more chaos at a bigger scale.
Our team builds fix-and-flip books in client-owned QuickBooks Online with property-level class tracking for every active project, rehab-budget-vs-actual visibility, hard-money draw and interest tracking, and subcontractor 1099 compliance handled throughout the year — not reconstructed at tax time. New clients get a free historical cleanup, so a flip that is already mid-renovation with messy books gets a clean baseline instead of a write-off.
If you are underwriting your next flip, mid-rehab on your current one, or scaling from one project to several at a time, a short discovery call is the fastest way to see exactly where your numbers stand and what a clean, property-level system would show you going forward.
| Decision factor | Daxable | Generic bookkeeping service | DIY spreadsheets |
|---|---|---|---|
| Per-flip P&L | Property-level class tracking for every active project | Varies; often blended into one account | Manual and easy to lose track of mid-rehab |
| Rehab budget vs. actual | Tracked line-item against the original budget | Usually reviewed only at project close | Rarely updated in real time |
| Hard money draws & interest | Tracked per property; capitalization handled per CPA guidance | Often expensed generically | Frequently missed entirely |
| Holding costs | Separated from acquisition/rehab capital costs | Often lumped into one expense bucket | Usually not separated |
| Subcontractor 1099 compliance | W-9 and 1099-NEC tracked throughout the year | May be scoped separately | Reconstructed in January |
| Cleanup for a mid-flip mess | Free historical cleanup for qualifying new clients | Usually paid catch-up work | Owner rebuilds it themselves |
| Best fit | Active flippers who need real-time, per-project numbers | Investors with one simple, slow-moving project | A single flip with very low transaction volume |
Flip accounting only works if it is tracked property-by-property, in real time — reconciling once at closing means finding out about a blown budget after the money is already spent.
Frequently Asked Questions
How is house-flipper bookkeeping different from rental property bookkeeping?
Rental bookkeeping tracks ongoing income and expenses per door over years. Flip bookkeeping is project accounting: acquisition, rehab draws, holding costs, and sale proceeds all need to tie to one property over a short, defined timeline so you know the project's real margin at close.
Do you track rehab budgets against actual spend?
Yes. We track rehab costs at the line-item level against your original budget for each active project, so budget drift is visible during the rehab, not discovered at closing.
Are hard money loan points and interest expensed or capitalized?
It depends on your accounting method and how your CPA wants the project treated for tax purposes. We track the draws, points, and interest per property so your CPA has the data to make that call, rather than a mix of numbers to sort out first.
My current flip is already mid-renovation and the books are a mess — can you help?
Yes. New clients receive a free historical cleanup, so we can rebuild and reconcile a project's books mid-stream instead of waiting until it closes.