Free fix and flip ROI calculator: rehab costs, ARV, and profit on US investment property. No signup.
Last updated 2026-05-28 · Davi Baptista
How it works
Free fix and flip calculator from Fynvorax. Model purchase, rehab, hard money costs, closing fees, net profit, ROI, and annualized return.
<p>House flipping, or the strategic process of buying a distressed property, renovating it to increase market appeal, and quickly reselling it, represents one of the most popular short-term real estate investment categories. Success hinges on a precise calculation parameter: you must evaluate every cost item before signing any acquisition title. This fix-and-flip analysis uses professional metrics like LTC (Loan-to-Cost) and ARV (After Repair Value) to establish the true economic profile of your rehabilitation deal.</p>
<p>One of the most common pitfalls is underestimating the cost of carrying under-renovation capital. Distressed property flippers rely on short-term bridging loans (commonly referred to as 'hard money' loans) that feature double-digit annual interest rates. These interest obligations stack up monthly during demolition, structural rehabilitation, permits, and final staging. If your deal timeline slips from six months to nine, these compounding financing charges can quickly erode your planned net margins.</p>
<p>Our simulator factors in all of these critical parameters on a timeline. By defining the purchase price, renovation budget, financing ratio, interest rates, holding time, and expected closing transaction costs (which include exit broker fees of roughly 5% to 6%), it offers an accurate estimate of your net cash outlays, overall profit, ROI, and annualized ROI, allowing investors to select the highest-yielding opportunities first.</p>
Frequently asked questions
What is After Repair Value (ARV)?
ARV represents the estimated future selling price of the property once all planned renovations, modernizations, and staging are fully completed. It is calculated by looking at recent sales of comparable updated properties in the near school districts or neighborhoods.
What is the 70% rule in house flipping?
The 70% rule states that an investor should pay no more than 70% of the After Repair Value (ARV) minus the estimated cost of repairs. For example, if a house's ARV is $300,000 and repairs will cost $50,000, the maximum purchase offer should be $160,000 ($210,000 minus $50,000).
What holding costs should I include?
Mortgage interest, taxes, insurance, utilities, HOA, and opportunity cost of cash each month you own the property.