The BRRRR method in a 7% rate world: the real math
BRRRR means buy, rehab, rent, refinance, repeat. The first four letters are easy. The refinance is where deals stall, because a cash-out refinance on a rental caps at 75% of the appraised value and the loan you pay off must be 12 months old. At a 7% rate, your cash only recycles if you buy far below the after-repair value.
What the BRRRR method actually is
BRRRR stands for buy, rehab, rent, refinance, repeat. You buy a house cheap, usually one that needs work, fix it, put a tenant in, then refinance against the higher value and pull your original cash back out to do it again. The appeal is simple. Done right, you end up owning a rental with most of your money already recycled into the next one.
This is general information, not financial or legal advice. Loan terms move week to week and vary by state, so consult a lender on the numbers and an accountant on the taxes before you buy anything.
Chase's explainer runs a clean version of the idea: buy a fixer for $150,000, spend $30,000, and the place appraises at $220,000. Tidy. What that page skips, and what almost every "BRRRR explained" article skips, is the one step that decides whether the strategy works at all. The first four letters are the easy ones. The money is made or lost on the fourth R, the refinance, and that is where this piece spends its time.
The refinance is where it breaks
A cash-out refinance on a one-unit investment property tops out at 75% of the appraised value under Fannie Mae's eligibility matrix. Two-to-four-unit rentals are capped at 70%. That single percentage governs the entire strategy, and most beginners never look it up until the appraisal comes back.
Run the Chase example against it. The house appraises at $220,000. Seventy-five percent of that is $165,000. If your true all-in reached $180,000 once you add closing costs, loan points and six months of carry, you refinance $165,000 and leave $15,000 of your own money sitting in the deal. That is not a disaster. It is also not the "pull every dollar back out" story the acronym sells, and the gap between those two is where beginners get discouraged.
So the real target is not a pretty rehab. It is an appraised value high enough that 75% of it clears everything you put in. Miss that, and you own a fine rental with your capital stuck inside it, earning nothing while the next deal goes to someone with dry powder.
The seasoning clock nobody warns you about
Say the numbers work. You still cannot refinance the week the tenant signs. Fannie Mae's selling guide requires the first mortgage you are paying off to be at least 12 months old, measured note date to note date, before you take cash out. You also have to have held title for six months. Finance the purchase with a bank and your BRRRR clock is close to a year long.
There is one door around it. The delayed financing exception lets you cash out sooner, as long as you bought the property with no mortgage, in an arms-length deal, within the past six months. Pay cash or use a private loan for the buy, fix it, rent it, then refinance in month two or three instead of month thirteen. This is the quiet reason experienced BRRRR investors bring their own cash to the closing table. They are not showing off. They are skipping a year of waiting.
Run the numbers at a 7% rate
The 30-year fixed averaged 7.03% the week of September 24, 2026, per Freddie Mac, up from 6.95% the week before. Investment-property loans price above that headline, often by half a point or more, so treat every payment below as a floor.
Take a $200,000 after-repair value and a $150,000 cash-out refinance, which is the 75% cap. At 7.03% over 30 years, principal and interest run about $1,001 a month. Here is the same house bought two ways.
| Line item | Deal A: bought right | Deal B: bought loose |
|---|---|---|
| After-repair value | $200,000 | $200,000 |
| All-in cost (buy + rehab + carry) | $140,000 | $165,000 |
| Cash-out refinance at 75% LTV | $150,000 | $150,000 |
| Your cash left in the deal | $0 (about $10,000 back) | $15,000 trapped |
| Payment at 7.03%, 30 years | $1,001 | $1,001 |
| Taxes + insurance (illustrative) | $250 | $250 |
| Rent | $1,600 | $1,600 |
| Cash flow before management | ~$349 | ~$349 |
Both houses cash-flow the same $349, because the loan and the rent are identical. The only thing that changed is how much of your own money you never got back. Deal A recycles your capital and hands you a few thousand on top. Deal B is a decent rental that quietly locked up $15,000 at a 7% opportunity cost, which is about $1,050 a year you are paying to leave money in a wall.
The 1% rule is dead at these rates
The 1% rule says monthly rent should be at least 1% of your all-in cost, and plenty of guides still print it as gospel. At a 7% cost of money it is wrong often enough that trusting it will lose you deals and, worse, lose you money on the ones you do close.
Here is the arithmetic. A property that hits exactly 1%, meaning $1,400 rent on a $140,000 project, carries a $150,000 refinance at roughly $1,001 in principal and interest. Add $250 for taxes and insurance and you sit at $1,251 before one repair, before management, before a single vacant month. Your "passing" 1% deal nets about $149 a month, and the first water heater that fails eats a year of it. The 1% rule was written when mortgages ran near 4%. Nobody updated it when money got expensive.
Replace it with a better test: does 75% of your after-repair value cover your all-in cost? If yes, your capital comes back and the rent only has to beat the payment. If no, no rent-to-price ratio saves you, because the deal already trapped your cash before the tenant moved in. Price the buy against the refinance, not against a rule of thumb from a cheaper decade.
DSCR loans, the quiet workhorse
Most BRRRR refinances now run on a DSCR loan instead of a conventional one. DSCR is the debt service coverage ratio, and the point of it is that the lender qualifies the property, not you. The math is gross monthly rent divided by the full monthly payment, including taxes, insurance and any HOA. That $1,600 rent against a $1,251 payment is a DSCR of about 1.28.
Lenders such as JVM Lending describe the common floor as 1.0, meaning the rent at least covers the payment, with programs dipping below that in exchange for a bigger down payment and a higher rate. Plan on 20% to 25% down on a purchase, or that much equity left in on a refinance, with credit minimums that usually start around 620 to 660. The trade is a rate above conventional investor pricing in return for speed and no income documents. For a self-employed flipper who cannot hand a bank two clean years of tax returns, that trade earns its keep.
What actually decides whether BRRRR works
Everything before the refinance serves one goal: buying far enough below the after-repair value that 75% of it returns your cash. That is why BRRRR and flipping share the same front end. You still have to calculate ARV off real, recent comps rather than the number you wish were true, and you still price the purchase so the deal pencils. The 70% rule is the flipper's version of the same guardrail: pay no more than 70% of ARV minus repairs. A BRRRR that ignores that ceiling leaves cash stranded every single time.
Repairs are where the whole model leaks. An honest rehab estimate is the difference between a $140,000 all-in and a $165,000 one, and the appraiser will not credit your budget, only the finished condition. Build the rehab number carefully, then add a contingency of 10% to 15% because you will find something behind a wall. The investors who blow up on BRRRR almost never blow up on the refinance rules. They blow up on a rehab guess that was 40% light.
BRRRR versus just buying a rental
Compare BRRRR to the boring alternative: buy a turnkey rental outright with 25% down. On a $200,000 house that is $50,000 down, and it stays down. Forever. A BRRRR done right leaves maybe $5,000 to $10,000 in the same house after the refinance, because the discount you bought at becomes the equity the bank lends against. That is the entire pitch in one line. Five houses from the same $50,000 instead of one.
The catch is real. The turnkey buyer closed in three weeks and collected rent in month one. The BRRRR buyer spent four months rehabbing, waited on seasoning, and sweated the appraisal. More houses, more work, more places to trip. Choose BRRRR when you can source deals cheap and stomach the timeline. Choose turnkey when your time is worth more than the extra borrowing power. Neither is wrong. They are different bets on the same $50,000.
Where the below-market deals come from
The buy is the whole game, and it is the step nobody hands you. A house that appraises at $200,000 and still cash-flows after a 75% refinance was almost never sitting on the MLS waiting. It came from an owner who needed to sell and had not listed yet: a tired landlord, someone who inherited a house two states away, an owner slipping behind on taxes.
Finding those owners in volume is where Farmrix fits the model. It scores every owner in a market on how likely they are to sell in the next 6 to 12 months, ranks them, and mails postcards to the top of that list, so the calls you field come from people already leaning toward a sale rather than a random neighborhood blast. The smallest package is 500 ranked owners and 500 postcards for $1,195. You can also work motivated seller leads by hand from public records for nothing, and on your first deal or two that is the right move. Pay for a tool when the hour you spend digging is worth less than the hour you spend locking up the next house.
Do this before your next BRRRR
Call a DSCR lender first and get three numbers: the maximum LTV they will lend on a cash-out refinance of a one-unit rental, the seasoning they require, and today's rate for your credit band. Then build the deal backward. Take the appraised value you can defend with comps, multiply by that LTV, and that product is the cash coming back to you. If it does not cover your all-in, what you have is a rental you are overpaying for, not a BRRRR.
Do that math before the purchase, never after the rehab. The people who compound with this strategy are not the ones with the prettiest kitchens. They are the ones who bought cheap enough that the refinance always clears, and who kept a full pipeline of motivated sellers so the next cheap buy was already waiting. Farmrix keeps that pipeline full. The arithmetic above keeps you from buying a deal that swallows your money and calls itself a rental.
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