Calculate house flipping profit, ROI, and annualized returns. Includes 70% rule check and hard money cost analysis.
Higher borrowing costs in 2026 (hard money at 10–14%) compress flip margins compared to the 2020–2022 era. Successful flippers are adapting by being more selective on purchase price (targeting further below the 70% rule), shortening renovation timelines, and targeting markets where ARV growth continues. Deals below 65% of ARV minus repairs remain viable even with current financing costs.
House flipping requires mastering the math before you make an offer. The most common reason flips fail financially is underestimating costs — particularly renovation surprises, holding time overruns, and selling expenses.
ARV is what the property will sell for after all renovations are complete. Accurate ARV estimation requires analyzing comparable recent sales (comps) of similar renovated homes within 0.5 miles and sold within the last 3–6 months. Overestimating ARV is the #1 cause of failed flips — consult a licensed real estate agent for accurate comp analysis in your target market.
Max Purchase Price = (ARV × 0.70) − Repair Costs
This rule ensures enough room for holding costs (5%), selling costs (8%), and profit margin (17%). The 70% threshold can be adjusted based on your cost structure — cash buyers with no financing costs might use 75%, while high-rate hard money borrowers in 2026 may need to use 60–65%.
Every month your money is tied up in a flip project, it's not earning returns elsewhere. Holding costs typically include hard money interest (12% annual = 1% per month on the loan), property taxes (prorated), utilities, insurance (vacant property coverage costs 2–3× standard homeowner's), and HOA dues if applicable.
First-time flippers consistently underestimate renovation costs. Add 10–20% contingency to your initial estimate for surprises (hidden water damage, outdated electrical, permit delays). The highest-ROI renovation categories are kitchen (minor remodel), bathrooms, fresh paint, flooring, and curb appeal.
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The 70% rule states that you should pay no more than 70% of the After Repair Value (ARV) minus your estimated repair costs. Formula: Maximum Purchase Price = (ARV × 70%) − Repair Costs. For example, a home with a $300,000 ARV and $50,000 in repairs: max purchase price = ($300,000 × 70%) − $50,000 = $160,000. The remaining 30% covers holding costs, selling costs, and your profit margin. This rule serves as a quick screening tool to ensure deals make financial sense.
With higher interest rates in 2026, hard money loans cost more (10–14% interest plus 2–4 points), which squeezes margins and makes holding time critical. Experienced flippers in strong markets can still achieve 25%+ annualized ROI by focusing on properties well below the 70% rule threshold and completing renovations quickly. Consult a licensed real estate professional familiar with local flip markets for realistic expectations in your area.
The major cost categories in a fix and flip are: (1) Purchase price and buying closing costs (2–3%), (2) Renovation costs — the largest variable, often $20,000–$100,000+, (3) Holding costs: hard money interest (10–14%), property taxes, utilities, and insurance during the renovation period, (4) Selling costs: real estate commissions (4–6%) and seller closing costs (1–2%), (5) Unexpected costs — always budget 10–15% above your renovation estimate for surprises.
Hard money loans are short-term loans secured by real estate, primarily used by house flippers. Unlike conventional mortgages, hard money lenders focus on the property's value (especially ARV) rather than the borrower's income and credit. They charge higher rates (10–15% interest) and upfront points (2–4% of loan amount), but they close fast (days vs. weeks), allow distressed properties, and typically lend 70–80% of ARV. Their higher cost is justified by speed, flexibility, and access to deals banks won't finance.
The average house flip takes 4–6 months from purchase to resale: 1–3 months for renovations, 1–2 months on market, 30–45 days to close. Each additional month of holding adds significant cost — hard money at 12% on a $200,000 loan costs $2,000/month in interest alone. Experienced flippers focus intensely on reducing holding time through upfront planning, reliable contractors, and staged marketing (listing before work is complete when possible).
Disclaimer: Fix and flip projections are estimates based on your inputs. Actual renovation costs, ARV, and sale prices vary significantly. House flipping involves substantial financial risk including loss of invested capital. Hard money loan terms vary by lender and are subject to qualification. Real estate markets fluctuate and ARV may be lower than estimated at time of sale. This calculator is for educational purposes only. Consult licensed real estate professionals, contractors, and financial advisors before undertaking any fix and flip project.