Fix and Flip Profit Calculator
A fix and flip lives or dies on the accuracy of the numbers you run before you make an offer, and the graveyard of failed flips is full of investors who underestimated their true all-in cost. This calculator forces every major expense into the open so your profit projection reflects reality. It starts from the After Repair Value — the price the finished home should sell for — and subtracts your purchase price, renovation budget, and holding costs such as loan interest, property taxes, insurance, and utilities carried during the project. It then deducts selling costs as a percentage of the sale price to capture agent commissions, closing fees, and concessions. What remains is your projected net profit and return on investment. Model a deal here first to confirm the margin is wide enough to survive a budget overrun or a soft market.
Your Numbers
Results
Results update live as you type. Estimates only — not financial, tax, or investment advice.
The Formula
Net Profit = After Repair Value − (Purchase + Rehab + Holding + Selling Costs)
Understanding the Fix and Flip Profit Calculator
A profitable flip is decided at the buy, and this calculator forces the four cost categories that erode margin into the open: the purchase price, the rehab budget, the holding costs you pay while you own the property, and the selling costs you pay to exit. New flippers consistently underestimate the last two. Holding costs — loan interest, property taxes, insurance, and utilities — quietly compound for every extra week the project runs long, and selling costs of 7–9% of the sale price take a real bite out of the top line.
The disciplined way to use these numbers is to work backward from the After Repair Value. Nail the ARV using recent comparable sales, budget a 10–20% contingency into the rehab for the surprises that always surface, and pad your holding period beyond your optimistic estimate. If the projected profit and ROI still clear your threshold under those conservative assumptions, you have a deal with a margin of safety. This is the same logic behind the 70% rule, which builds the buffer directly into your maximum offer.
Frequently Asked Questions
What is a good profit margin on a house flip?
Many experienced flippers target a net profit of at least $25,000–$50,000 per project, or an ROI of 10–20% on total project cost. The right number depends on your market and deal size. The key is that the margin must be wide enough to survive a budget overrun or a soft resale market.
How do I estimate the After Repair Value?
Base ARV on recent sold comparables — not active listings — of similar size, condition, and location, ideally within the last three to six months and a half-mile radius. A local agent's comparative market analysis or an appraisal gives the most reliable figure. Conservative ARV estimates protect you from the single biggest flip risk.
What are holding costs on a flip?
Holding costs are the recurring expenses you pay for as long as you own the property: loan or hard-money interest, property taxes, insurance, utilities, and HOA dues. They accumulate every month the project runs, which is why delays are so costly and why accurate timeline estimates matter as much as the rehab budget.