House Flipping Bookkeeping: From Purchase to Sold-Deal Review

What makes flip bookkeeping different?

3 things: costs attach to a property rather than to a month, the property sits on the balance sheet until it sells, and the loan funds rehab in stages. None of that happens in an ordinary business.

• Costs attach to a property. A December invoice for Project 1 belongs to Project 1, not to December.
• The property stays on the balance sheet until it sells. Its costs build up there and come off together at the sale.
• The loan arrives in stages. Part funds the purchase, and draws release the rehab money as the work is done.

Each of those needs its own accounts, one set per property. The real estate chart of accounts lists them.

A flip still unsold at year end raises its own balance sheet questions, starting with one: is a house flip inventory? That guide covers them. How it is taxed is your CPA's decision.

Wholesale deals and rentals follow their own patterns. Our guide to bookkeeping for real estate investors covers them.

What happens at the purchase of a flip?

The settlement statement becomes one entry: the property's starting cost, the loan, the earnest money cleared and the cash you brought. Everything the property later costs is added to that starting figure.

Project 1 closed on Oct 8, 2025 at $285,000. The lender funded $242,200 at closing, and $44,913.68 of cash went to escrow after the $5,000 earnest money and a property tax credit from the seller. Its starting cost was $286,770.00: the price plus $1,770.00 of escrow, title and recording. The $6,194.00 of points and lender fees went to the loan costs of the same property.

We work through every line of that statement, and the entry that ties to it, in purchase closing statement bookkeeping.

What happens during the rehab?

Every invoice, receipt and subcontractor payment is coded to the property. Spend is compared with the budget each month, by category, so a project running over is visible while the work is still going.

Project 1 had a $48,000 rehab budget. It took 5 payments, from Oct 20, 2025 to Jan 31, 2026: drywall and paint, materials, electrical, framing and demo, and roofing. The total was $51,200, which is $3,200 over budget.

We cover coding each cost to its property, and comparing spend with budget each month, in job cost accounting for house flips.

One deal's costs by category, its budget against actual and its draws can also be kept in our house flipping spreadsheet.

Each subcontractor payment also builds that contractor's total for the year, which starts with a W-9 on file. We explain that record in contractor 1099 records.

What happens while you hold the property?

Interest, property tax, insurance, utilities and any HOA dues accrue against the property, and lender draws increase the loan. Holding costs are the quietest line on a flip and the one that decides marginal deals.

Project 1 was held for 135 days, and its holding costs came to $13,819.07. Of that, $10,974.07 was loan interest, and insurance, utilities and property tax made up the other $2,845. Its $7,964 of closing and loan costs at purchase are not holding costs: they sit with the purchase and on the loan costs line, and still count in the deal's profit.

Project 4 is where holding costs decided the deal. At the March 2026 close, 131 days in, it had $18,443 of holding costs booked and 2 of its 5 rehab payments still to come. Project 1 had sold at 135 days with $13,819 in total. From December to May, each month added between $4,104 and $4,706 to Project 4.

We set out what counts as a cost of time while the flip sits, and where each one is recorded, in house flip holding costs, month by month.

Points, draws, interest and the payoff each get their own entry against the loan, as in hard money loan bookkeeping.

What happens at the sale of a flip?

The sale statement clears the property's accumulated cost and the loan payoff in one entry. What is left is the deal's result, which is not the same as the money wired to you.

Project 1 sold on Feb 20, 2026 for $405,000. Selling costs were $24,441, most of it the $20,250 agent commission. After the loan payoff, the sale statement left $86,916.06 for checking. The deal itself made $22,576.

We record each line of the sale statement, from the payoff to the commission, in how to record the sale of a house flip.

How do you know what the deal made?

Sale price less purchase, loan, rehab, holding and selling costs, from reconciled books. Compared with the estimate line by line, it shows which cost group moved and by how much.

Project 1 made $22,576 in 135 days. The owner's own cash in the deal was $64,583, the $42,800 down payment plus the closing and loan costs and the holding costs, so the return on cash was 35.0%. Against the estimate, the rehab moved most: $51,200 spent against $48,000 planned.

Project 4 sold on Jun 24, 2026 for $512,000, after 216 days. Before holding costs it cleared $25,183. By the May 2026 close, its holding costs were already $27,676, more than the sale would leave before them. It finished at a loss of $6,469.51, with $31,652 of holding costs.

In our experience, the flippers who know what every deal really made make better decisions on the next one.

Our guide to house flip profit reconciles the result and checks it line by line. To set the estimate in the same cost groups before the next purchase, use the house flipping calculator.

How do you see what cash the next 90 days needs?

Add up the remaining budget on active projects and the holding costs to each expected sale date, then take away the draws still available. The gap is what you need, and it is visible before it arrives.

• Remaining budget: what each active rehab still has to spend.
• Draws still available: what the lender will release against that work. Draws arrive after the work is done, so the cash goes out first.
• Holding costs: interest, property tax, insurance, utilities and any HOA dues for each month until the expected sale.

On Sep 30, 2026, Project 8 at 1500 Sample Pl, Folsom had $52,760 of its $95,000 budget left, and $52,760 of draws still to come. While the rehab stays on budget, it needs cash only between paying a contractor and receiving the draw. Any overrun is new cash. Holding costs are new cash every month: interest alone on Project 8 was $4,008.56 in September.

Laid out month by month for every active project, those 3 lines show the cash the next 90 days needs while there is still time to arrange it.

What does the finished set of books look like?

A per-deal report for every property, reconciled accounts, a loan agreeing with the lender's statement, and contractor totals ready for January. The deal file closes and the number stops moving.

• A per-deal report: one row for every property, sold or active.
• Reconciled accounts: every bank and card account agreeing with its statement at month end.
• A loan that agrees with the lender's statement. After the sale, Project 1's loan stands at $0.
• Contractor totals for the year, with any missing W-9 flagged before January.

Project 1 is one row of that report, next to the 9 other projects of Demo Flips LLC. See every row in our real estate bookkeeping report example, explained line by line.