Meet Sarah. She earns $75,000 a year and wants to build wealth through real estate. She found a distressed property listed at $280,000 in a growing neighborhood. But is it actually a good deal? That's where the BRRRR Calculator becomes essential.
The BRRRR method—Buy, Rehab, Rent, Refinance, Repeat—has helped thousands of American investors scale their portfolios without tying up all their cash. But crunching the numbers manually? That's a headache. This calculator breaks down your potential cash flow, refinance amount, and cash-on-cash return instantly. No more guessing if that fixer-upper will actually cash flow after you refinance.
How to Use
Enter your purchase price, estimated rehab costs, and after-repair value (ARV). Add your expected monthly rent and current mortgage rates—like a 30-year term at 6.5% APR. The calculator shows your total investment, potential refinance amount, and monthly cash flow. Adjust the numbers until the deal makes sense.
Pro Tips
Build relationships with local hard money lenders before you need them. They can close in days, giving you an edge over buyers using traditional financing. Once the property is stabilized, refinance into a conventional 30-year mortgage.
Get multiple contractor bids—always. The spread between the highest and lowest bid on a $40,000 rehab can exceed $15,000. Check references and verify their insurance coverage.
Target neighborhoods where rents cover your mortgage plus 10% minimum. If you're earning $75,000 annually at your day job, don't overextend. Keep that income stable while building your portfolio.
Consider house hacking your first BRRRR. Living in one unit while renting others can supercharge your returns and help you qualify for owner-occupied financing with just 5% down.
Common Mistakes to Avoid
Underestimating rehab costs trips up most first-time investors. What looks like a $30,000 renovation often becomes $45,000 after permits, contractor delays, and surprise issues. Always pad your budget by at least 20%.
Another mistake? Ignoring the 75% loan-to-value rule most conventional lenders enforce. If your after-repair value is $350,000, you'll only refinance around $262,500—not the full amount. Many investors get stuck with more cash tied up than expected.
Finally, don't forget property taxes and insurance. These vary wildly by state. A $350,000 home in Texas carries much higher property taxes than the same-value home in Colorado. Run the numbers for your specific ZIP code.
Frequently Asked Questions
How much cash do I need to start a BRRRR deal?
Plan for 20-25% of the purchase price plus rehab costs. On a $200,000 property with $40,000 in renovations, you'll need roughly $80,000-$90,000 in cash for down payment, closing costs, and repairs. Hard money loans require less down but carry higher interest rates around 10-12%.
What credit score do I need to refinance after rehab?
Most conventional lenders want a FICO score of 680 or higher for investment property refinances. A score above 740 gets you the best rates on a 30-year mortgage. If your credit needs work, spend 6-12 months improving it before starting your first BRRRR project.
Can I use a 401k loan to fund my first BRRRR deal?
Yes, many 401k plans allow loans up to 50% of your vested balance, maxing out at $50,000. You pay yourself back with interest over 5 years. Just remember—if you leave your job, the loan may become due immediately. Weigh this risk carefully before tapping retirement funds.