A cash-out refinance lets you turn a rental's built-up equity into spendable cash without selling the property. You replace the existing loan with a larger one, pay off the old balance, and pocket the difference. The tenant stays, the rent keeps coming, and the appreciation you've earned goes to work in the next deal instead of sitting locked in a wall.
That's the appeal. The catch is that everything gets more expensive on the way out: a bigger loan means a bigger payment, and today's rate almost certainly beats the rate you already have. This guide walks the full math with real numbers, the gates lenders apply, and the one question that decides whether the trade is smart or just expensive.
cash-out refi vs. a HELOC
Both pull equity, but they're different instruments. A cash-out refinance replaces your mortgage with a new, larger fixed-rate loan — you re-set the whole thing at today's rate for another 30 years, take the cash at closing, and pay closing costs on the full amount. It fits when you want a lump sum you'll deploy immediately and you're comfortable locking a long-term payment. A HELOC on an investment property, by contrast, sits on topof your existing loan as a second lien: a revolving credit line you draw as needed, usually at a variable rate, with little or no cost to open. It fits when you want flexible access to capital you might not use all at once — a rehab fund, a bridge between deals — and you don't want to disturb a low first-mortgage rate. Investment-property HELOCs are harder to find and carry higher rates and lower limits than the owner-occupied version, so confirm a lender will write one before you plan around it.
the core math, worked
Take a rental worth $200,000 that you owe $90,000 on. A lender caps a cash-out refinance at 75% of value, so the new loan maxes at $200,000 × 75% = $150,000. Out of that $150,000, roughly $90,000 pays off the old loan and about $5,000 covers closing costs (origination, appraisal, title). What lands in your account is roughly $150,000 − $90,000 − $5,000 = $55,000in tax-free cash — it's a loan, not income.
Now the part that stings. Say the old loan was around 4% — principal and interest ran you roughly $430/mo. The new $150,000 loan at around 7% (rates vary) on a 30-year term runs roughly $1,000/mo in principal and interest. Your payment more than doubled: about $570/mo more, or close to $6,800 a year in extra debt service, permanently, in exchange for the $55,000 today. That monthly hit is the whole story. If the property was clearing $300/mo before the refi, a $570 heavier payment flips it to bleeding roughly $270/mo unless rent has room to rise. Run your own numbers on the DSCR calculator before you assume the deal survives.
the gates lenders apply
A cash-out refi has to clear more hurdles than a purchase loan, and this is where deals die:
- LTV caps. Cash-out on an investment property tops out around 70–75% of value — tighter than the 75–80% you'd get on a purchase, and tighter than a rate-and-term refinance. Lower leverage means less cash out.
- Seasoning. Most lenders want you to have owned the property 6–12 months before they'll lend against the new appraised value instead of your original purchase price. Refinance too early and the higher number simply doesn't count.
- The new-DSCR test. The property has to service the bigger loan. The rent must cover the new payment at roughly a 1.2 debt-service-coverage ratio — and it's tested on the larger payment, not the one you have now. A deal that cash-flowed comfortably can fail here the moment the payment jumps. This is the gate that kills the most refis.
- Credit and reserves. Expect a 660–680+ score and several months of the new payment held in reserves. Cash-out pricing sits above rate-and-term pricing because the lender is handing you liquidity.
The new-DSCR test is worth dwelling on, because it's the mechanism behind every refi that falls apart at underwriting. The DSCR loan guide breaks down exactly how the ratio is calculated and what minimum you need to clear.
the real question: cost of capital
Here's the framing that separates a smart refi from an expensive one. That $55,000 you pulled isn't free money — it costs you the rate you're now paying on the extra debt. You borrowed roughly $60,000 more than before (the loan went from $90,000 to $150,000) at around 7%, which is about $4,200 a year in additional interest. So the real test is simple: will that $55,000 earn more than $4,200 a year in its next home?
Say you put the $55,000 down on another rental that returns 12% cash-on-cash — about $6,600 a year. You're paying $4,200 to earn $6,600, netting roughly $2,400 a year and you still own the original property with a tenant paying it down. The trade works. Now flip it: if the next deal only returns 6% — about $3,300 a year — you're paying $4,200 to earn $3,300. You're losing money to move equity around. Don't do it. The rule of thumb: if the next deal's cash-on-cash return beats the drag from the refi, pull the equity; if it doesn't, leave it in the wall. Model the return on the target deal with the cash-on-cash calculator before you commit to the refi.
when not to do it
Three situations where a cash-out refi is the wrong move, no matter how much equity is sitting there:
- Thin post-refi DSCR. If the new payment leaves the property barely above break-even, you're one vacancy or one broken HVAC away from feeding it every month. Equity is worthless if pulling it turns a stable rental into a fragile one.
- Rate arbitrage running backwards. If your existing loan is at 3–4% and current rates are around 7%, refinancing throws away a rate you can never get back. On a low-rate loan, a HELOC that leaves the first mortgage untouched is almost always the smarter way to reach the equity.
- No deployment plan. Pulling equity with nowhere specific to put it means you're paying interest to hold cash. Money sitting in your account earns nothing while the higher payment bleeds you monthly. Line up the next use first, then refinance — not the other way around.
the engine of BRRRR at scale
Done right, the cash-out refi is the "R" that makes the whole flywheel spin. In the BRRRR strategy — buy, rehab, rent, refinance, repeat — you buy a distressed property cheap, force the value up with a renovation, place a tenant, then refinance to pull your original capital back out. That recovered cash becomes the down payment on the next property, which you repeat the cycle on. Each deal funds the next, so the same pool of capital recycles through property after property instead of getting trapped in the first one.
The discipline that makes it sustainable is exactly the cost-of-capital test above, applied every single cycle. Recycle equity only into deals that out-earn the refi drag, keep every post-refi DSCR comfortably above the minimum, and never pull cash you don't have a home for. Do that, and equity recycling compounds a portfolio. Skip it, and each refi just stacks a heavier payment on a thinner cushion. Know the exit math before you buy — the refi you can't qualify for later is the one that turns a good purchase into a trapped one.