House flipping rehab budget calculator

Build a house-flip rehab budget with contingency, holding and selling costs, expected profit, ROI, ARV, and cost-per-square-foot checks.

USD inputs · transparent calculation assumptions
Instant updates as inputs change
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USD inputs · transparent calculation assumptions

Estimated flip profit$47,250.00

Rehab budget with contingency: $49,500.00
Holding costs: $9,000.00
Estimated selling costs: $19,250.00
Total project cost: $227,750.00
Return on project cost: 20.75%
Rehab cost per square foot: $33.00
Renovation-type benchmark: $82,500.00
70% rule maximum purchase price: $143,000.00
Break-even ARV: $224,193.55

Calculation notes

Understand the House flipping rehab budget calculator

The House Flipping Rehab Budget Calculator validates every input, normalizes monthly and annual amounts, and calculates rehab contingency, holding costs, selling costs, profit, ROI, and ARV from one consistent scenario.

Formula and logic

How does the House Flipping Rehab Budget Calculator calculate rehab contingency, holding costs, selling costs, profit, ROI, and ARV?

Rehab = base budget × (1+contingency). Holding = monthly holding cost × months. Selling cost = ARV × selling percentage. Profit = ARV − purchase − rehab − holding − selling. Break-even ARV = (purchase + rehab + holding)/(1−selling fraction).

Worked example

What does a worked House Flipping Rehab Budget Calculator example show?

Purchase $150,000, rehab $45,000 with 10% contingency, six months at $1,500 and ARV $275,000 with 7% selling costs produce $49,500 rehab, $9,000 holding, $19,250 selling and $47,250 modeled profit.

How to read the result

How should I interpret the House Flipping Rehab Budget Calculator results?

ARV is a sale-value assumption, not the current purchase value.
The 70% rule and per-square-foot benchmarks are rough screens; compare contractor bids and recent comparable sales.

Limits and assumptions

Which costs, rules, or risks are outside the House Flipping Rehab Budget Calculator?

Acquisition closing costs, financing charges and taxes are only captured if included in your budgets. Renovation benchmarks are fixed illustrative values, not local quotes.

Content and calculation reviewed: October 9, 2026

Understand the calculation

How to use it and the math behind it

Read the complete explanation

Four steps to check your inputs and results

Confirm currency and monthly versus annual amounts. U.S. tax and loan models should be used within their stated scope.
Prepare Purchase price, Base rehab budget, After-repair value (ARV), Holding period, Renovation type, Property area, Rehab contingency, Monthly holding cost, Selling costs. Defaults demonstrate the model rather than your personal circumstances.
Check the headline result and its components. A key interpretation for this tool is: ARV is a sale-value assumption, not the current purchase value.
Compare the baseline with a changed scenario: The 70% rule and per-square-foot benchmarks are rough screens; compare contractor bids and recent comparable sales.

A cash-flow waterfall and scenario sensitivity

Income and costs form successive layers. Subtracting financing before computing NOI changes the definition and distorts cap-rate comparisons. Principal repayment uses cash but can also build equity, so a tax profit, operating profit and cash-flow result may legitimately differ.

Effective income = potential income × (1 − vacancy)
NOI = effective income − operating expenses
Cash flow = NOI − debt service
DSCR = NOI / debt service

The detailed guide adds variable definitions, a reproducible example, a practice question and model limitations.