Strategy

    BRRRR Method Calculator: How to Run the Numbers Before You Buy

    Appraize Team·April 22, 2026·11 min read
    BRRRR Method Calculator: How to Run the Numbers Before You Buy

    What Is the BRRRR Method?

    BRRRR stands for Buy, Rehab, Rent, Refinance, Repeat. You acquire a distressed property below market value, renovate it to increase its value, place a tenant, then refinance based on the new appraised value. If the numbers work, the refinance returns all or most of your original capital — which you then deploy on the next deal.

    The wealth-building power of BRRRR is capital recycling. Instead of tying up $50,000 in a down payment permanently, you pull it back out and use it again. Done correctly, one pool of capital can fund multiple properties. Done incorrectly, your capital is stuck in a property with no exit.

    The BRRRR Formula

    The core question in any BRRRR analysis is: will the refinance return my capital?

    Step-by-Step Math

    • Step 1 — Total cash invested: Purchase Price + Rehab Costs + Closing Costs + Holding Costs
    • Step 2 — Refinance proceeds: ARV x 75% (most lenders cap investment refis at 75% LTV)
    • Step 3 — Capital left in deal: Total Cash In minus Refinance Proceeds

    The goal is Capital Left In = $0 or as close to it as possible.

    Example Deal

    • Purchase price: $95,000
    • Rehab: $35,000
    • Closing and holding costs: $8,000
    • Total cash in: $138,000
    • ARV: $195,000
    • Refinance at 75% LTV: $146,250
    • Capital left in deal: $138,000 minus $146,250 = negative $8,250

    That means you pulled out $8,250 more than you put in. That is a home run BRRRR deal.

    The 5 Numbers You Must Get Right

    1. ARV (After Repair Value)

    This is the most important number in the entire analysis. If your ARV is wrong, everything downstream is wrong. Use recent comparable sales within 0.5 miles, same property type, similar square footage, sold within the last 90 days. Adjust for condition, bed and bath count, and lot size. Overestimating ARV is the most common and most expensive mistake in BRRRR investing.

    2. Rehab Costs

    Get a real contractor estimate, not a drive-by guess. Line-item your repair costs — roof, HVAC, plumbing, electrical, kitchen, bathrooms, flooring, paint, landscaping. Add a 15% contingency buffer. Rehab always runs over.

    3. Purchase Price

    Your Maximum Allowable Offer for a BRRRR deal is: MAO = (ARV x 75%) minus Rehab Costs minus Closing Costs minus Desired Profit Buffer.

    4. Post-Rehab Rental Income

    Pull actual rental comps for the neighborhood. Your rental income drives the DSCR (Debt Service Coverage Ratio) that determines whether a lender will refinance the property. Most investment property lenders require a DSCR of 1.25 or higher — meaning your monthly rent must be at least 1.25x your monthly mortgage payment.

    5. Refinance Terms

    Model your refinance at current DSCR loan rates, not the rate you hope for. As of 2026, DSCR loans typically run 7.5 to 8.5% for investment properties. Run your numbers at the higher end to stress-test the deal.

    Cash Flow Analysis After Refinance

    A successful BRRRR is not just about getting your capital back — the property still needs to cash flow after the refinance.

    Monthly Cash Flow = Gross Rent minus Mortgage Payment minus Property Tax minus Insurance minus Property Management (8-10%) minus Vacancy Reserve (8%) minus Maintenance Reserve (5-8%)

    • Green light: Cash flow of $200 or more per month after refinance at 75% LTV
    • Caution zone: Cash flow between $0 and $200 per month — works but leaves no margin for error
    • Red light: Negative cash flow after refinance — reassess your purchase price or rehab budget

    The Most Common BRRRR Mistakes

    Over-Improving the Property

    Granite countertops and luxury finishes do not always translate to higher ARV in B and C class neighborhoods. Match your rehab to the neighborhood standard. Over-improving kills your refinance math and eats into returns you will never recover.

    Underestimating Holding Costs

    A 6-month rehab timeline means 6 months of mortgage payments, utilities, insurance, and property taxes before you see a dollar of rent. Model this accurately or your deal analysis will be wrong from the start.

    Assuming the Refinance Will Work

    Lenders have seasoning requirements — many require you to own the property for 6 to 12 months before refinancing. Some require the property to be rented for a full lease cycle. Know your lender's requirements before you buy, not after.

    Using Optimistic ARV

    Your ARV must be defensible to an appraiser, not just to you. Use conservative comps and let the upside surprise you. An appraiser who comes in $20,000 below your projected ARV can unravel an entire BRRRR deal at the refinance stage.

    How Appraize Models BRRRR Deals

    Manually running all five BRRRR numbers on every deal is time-consuming and error-prone. Appraize models your BRRRR analysis automatically — ARV from real MLS comps, line-item repair estimates calibrated to your local market, refinance projections at current rates, and cash flow analysis after refinance.

    Every BRRRR deal gets modeled alongside all 7 other exit strategies simultaneously. Sometimes a deal that looks marginal as a BRRRR is a strong fix and flip or buy and hold. Seeing all 8 exits at once means you never leave money on the table.

    Analyze your first BRRRR deal free at Appraize — no credit card required. Get ARV, repair estimates, and full BRRRR projections in under 30 seconds.

    The Bottom Line

    The BRRRR method is one of the most powerful wealth-building strategies in real estate. It is also one of the easiest to get wrong. The investors who scale portfolios with BRRRR are the ones who run the numbers before they fall in love with a property.

    Get your ARV right. Model your rehab accurately. Stress-test your refinance. Confirm cash flow after the refi. Do all of that before you make an offer and BRRRR becomes exactly what it promises — a repeatable system for building a rental portfolio without constantly deploying new capital.

    Written by

    Appraize Team

    Editorial

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