A duplex you bought in 2019 for $310,000 now appraises at $455,000. You still owe $198,000. That leaves roughly a quarter of a million dollars in equity sitting in a brick building, earning you nothing beyond the rent it already collects.
A cash out refinance for investment property is how you convert that paper equity into a down payment on the next deal, a rehab that pushes rents from $1,400 to $1,850, or the payoff of a hard money loan charging 12%. It’s one of the most useful tools a landlord has. It’s also one of the easiest ways to turn a profitable rental into a break-even one, because lenders price rental risk higher than owner-occupied risk and the rules are noticeably stricter.
What the loan actually does to your balance sheet
You replace your existing mortgage with a bigger one and pocket the difference. Using the duplex above: at a 75% loan-to-value cap, the new loan tops out at $341,250. Pay off the $198,000 you owe, cover roughly $7,000 in closing costs, and you walk away with about $136,000 in cash.
What changed is not just the balance. Your payment went up, your interest rate probably went up, and your debt service coverage ratio got tighter. If rent is $2,900 a month and the old payment was $1,180, you had plenty of cushion. At a $341,250 balance on a 7.25% investment property rate over 30 years, principal and interest alone runs about $2,328. Add taxes and insurance and you’re at maybe $2,850. The property still cash flows, but barely. That’s the trade: liquidity now, thinner margin later.
Where the money usually goes
Investors rarely pull equity just to hold cash. The common uses:
- Down payment on the next property. At 25% down, $136,000 supports a purchase around $540,000.
- Rehab and repositioning. A $45,000 kitchen and bath update that adds $600 a month in rent pays for itself in about six years, before appreciation.
- Debt cleanup. Retiring a 12% hard money loan or 29% credit card balance with 7.25% mortgage debt is often the highest guaranteed return available.
- Reserves. Lenders want to see six months of payments set aside. Some investors pull extra to fund a vacancy and repair buffer across the whole portfolio.
Rental loans follow a different rulebook
Expect to pay roughly 0.5% to 0.875% more than you would on your own house. Expect lower LTV caps too: 75% is standard for a single-family rental or duplex, and some lenders stop at 70% on 3–4 units. Portfolio lenders and DSCR lenders may go to 80%, but the rate climbs further.
Underwriters also look harder at the file. They’ll want a lease or rent schedule, landlord experience on the schedule of real estate owned, reserves calculated on the full portfolio rather than just the subject property, and a DSCR that clears their floor. On a conventional loan that floor is typically 1.0 to 1.25, meaning the rent has to cover the payment with room to spare. The five things underwriters actually check on a cash out refinance are worth reviewing before you apply, because a surprise on reserves or credit can stall a deal you’ve already committed to.
How much equity you can realistically pull
The headline LTV cap is not the number you get. Appraisals on rentals sometimes come in below what Zillow told you, and the lender uses the lower of appraised value or purchase price if you bought recently. There’s also a difference between what the guidelines allow and what the underwriter will approve once reserves and DSCR are factored in. If you want a realistic figure rather than a hopeful one, work through how much equity a cash out refinance can actually release before you start shopping.
The math that decides whether it’s worth doing
Treat the pulled equity as a loan with a cost, then compare it to what that money will earn.
Say you pull $100,000 at 7.25% on a 30-year term. That slice of the loan costs you about $682 a month, or $8,184 a year, in interest and principal. If the money funds a down payment on a property returning 9% cash-on-cash, you’re ahead. If it sits in a savings account at 4%, you’re lighting roughly $3,000 a year on fire. If you spend it on a kitchen that doesn’t move the rent, you’ve simply borrowed against your retirement at 7.25%.
Two other numbers matter. First, closing costs, which typically run 2% to 3% of the new loan amount. On a $341,000 loan that’s $7,000 to $10,000 that has to be earned back before the refinance makes a dime. Second, your debt-to-income ratio. A bigger rental mortgage can push you over the limit on your next purchase, even if that rental still cash flows. Run the scenarios through a refinance debt-to-income calculator and you’ll see how quickly a cash out loan narrows your borrowing capacity elsewhere.
Seasoning and the delayed financing exception
Most lenders require you to have owned the property for six to twelve months before they’ll let you cash out based on a new appraised value. Buy a distressed property for $180,000, fix it up, and get it appraised at $260,000 three months later, and the standard rule blocks you from pulling the difference.
The exception is delayed financing. If you bought with cash or a non-mortgage source, some lenders will allow a cash out refinance within six months of purchase, capped at your actual acquisition cost or 75% of appraised value, whichever is lower. It’s a real path for fix-and-flippers who fund purchases with private money, but the documentation requirements are strict and not every lender offers it.
Where investors get burned
- Forgetting the prepayment penalty. Many investment property loans carry a three-, four-, or five-year penalty, often calculated as 5-4-3-2-1% of the balance. That’s a $15,000 hit if you sell in year one on a $300,000 loan.
- Refinancing into negative cash flow. A property that nets $200 a month with a small mortgage can net minus $150 after a max cash out. One furnace replacement and you’re funding the building out of pocket.
- Assuming a better rate later. Rates may fall, but the penalty and closing costs are certain. Two refinances in eighteen months can wipe out the benefit of the first.
- Mixing personal and rental funds. Interest tracing rules mean the deductibility of the new debt depends on where the money goes, not what it’s secured by. Pull $80,000 and put it in the stock market and that portion of the interest isn’t deductible against rental income. A CPA should see the paper trail before you close.
Shopping an investment property refinance properly
Start with at least three quotes, and compare the APR plus the total closing costs, not the headline rate. A 0.25% lower rate on a $340,000 loan is worth about $1,400 over five years, so it’s easy to give that away chasing a $3,000 lower fee. Ask each lender for the exact LTV cap, the reserve requirement, whether the loan is assumable, and the prepayment structure in writing.
Ask about discount points too, but with skepticism. Buying the rate down can make sense if you plan to hold the property for a decade; it’s a losing proposition if you’re likely to sell or refinance in three years. A rate buydown calculator will show you the break-even month, which is the only number that matters. And treat any quoted rate as a starting point rather than a promise. The average mortgage refinance rate tells you where the market is, not what a specific rental property will get, since pricing on investor loans depends heavily on credit, DSCR, and unit count.
One last piece of advice that saves real money: get the appraisal ordered before you commit to a plan that depends on a specific cash-out figure. Rental appraisals come in low more often than most investors expect, and knowing your actual number two weeks earlier lets you resize the deal instead of scrambling after the loan is in underwriting.