Step‑by‑Step CMA for House Flips: Maximize Profit

You need a reliable way to estimate resale value before you buy a flip. This guide shows exactly how to run a comparative market analysis (CMA) for house flips that delivers an accurate after‑repair value (ARV) in minutes, not guesswork. Follow the four‑step system, download the free worksheet, and walk away from every deal with confidence.

Why Guesswork Costs You Money

Skipping a proper CMA means you’re betting on hope instead of data. The result? Overpaying, longer hold periods, and hidden carrying costs that eat your profit. Data‑driven pricing is the only way to keep your flips financially viable.

Four Simple Steps to Run a CMA

1. Gather Recent Comparable Sales

Pull the last three to six months of sold listings that match your subject property’s neighborhood, size, and age. Record sale price, square footage, bed/bath count, and any standout features. Use the MLS or a reputable public site.

2. Identify Key Differences

For each comp, note major differences—renovated kitchen, larger lot, extra bathrooms, etc. Adjust the price by a reasonable amount (typically $5‑$10 K per major feature) to reflect what your property lacks or exceeds.

3. Calculate Adjusted Values & Average

Add or subtract the adjustments from each comp’s sale price, then average the adjusted figures. This average becomes your projected ARV, the price you can realistically expect after repairs.

4. Test the Deal

Compare the ARV to your purchase price plus rehab budget. If the margin is thin, either negotiate a lower price, trim the scope, or walk away. This final check ensures the flip remains profitable.

Put the Numbers to the Test

After you’ve run the CMA, plug the ARV into your investment calculator:

Purchase Price
Estimated Rehab Costs
ARV (from CMA)
Target Profit Margin (e.g., 20 %)

If the calculation meets or exceeds your profit target, the deal passes the test. If not, revisit the adjustments or look for a better property.

Free CMA Worksheet

To speed up the process, download the free CMA worksheet from the blog. It’s pre‑formatted for the four steps above, so you can fill in data on the go and instantly see the adjusted average.

Quick Recap

Never rely on gut feelings—use real sales data.
Adjust for major differences only; avoid over‑tweaking.
Average adjusted comps to determine a trustworthy ARV.
Run the profit test before committing any money.

Implement this CMA for house flips on every potential project and you’ll cut losses, shorten hold times, and boost overall profitability. Ready to start? Download the worksheet, run your first analysis, and turn data into dollars.