Refinance Calculator

How to Decide Whether to Refinance a Rental Property

Refinancing a rental pays off when the savings over the time you will actually keep the loan exceed the cost of getting it, and when the new payment still leaves the property comfortably covering its debt. For a rate-and-term refinance, that comes down to break-even months on closing costs and total interest over the new term. For a cash-out refinance, it comes down to what the cash will earn compared with the extra interest, and what the larger loan does to cash flow and DSCR.

The three numbers that matter most are your monthly savings (current payment minus new payment), your break-even point (closing costs divided by monthly savings), and your expected holding period. If break-even lands at 29 months and you plan to hold the property for another decade, the refinance pays for itself many times over. If you are planning to sell or 1031-exchange the property within two years, the same refinance destroys value. Enter your current balance, rate and principal-and-interest payment, the new rate and term, any cash-out amount and the quoted closing costs, and the calculator above does the arithmetic.

Rate-and-Term vs Cash-Out Refinance

A rate-and-term refinance replaces your loan with one of roughly the same balance, usually to lower the rate, switch from an adjustable to a fixed rate, or change the term. Closing costs are either paid in cash or rolled into the new balance. Your debt does not grow (apart from rolled-in costs), so cash flow typically improves.

A cash-out refinance borrows more than you owe and pays you the difference. Landlords use it to fund repairs, buy another rental, or complete a BRRRR cycle. As typical lender practice, cash-out loans on investment property have lower maximum loan-to-value limits than rate-and-term loans (caps around 70-75% of appraised value are common, lower for some 2-4 unit properties), and they are often priced somewhat higher. Limits vary by lender and program, so get written loan estimates.

Break-Even Months on Closing Costs: Worked Arithmetic

Hypothetical example. Three years ago you financed a rental with a $250,000, 30-year fixed loan at 7.1%. The principal-and-interest payment is $1,680.08 and the balance today is about $242,000. A lender offers a new 30-year loan at 6.25% with $5,500 of closing costs, which you will pay in cash.

1. New payment on $242,000 at 6.25% over 360 months: $1,490.04.
2. Monthly savings: $1,680.08 - $1,490.04 = $190.04.
3. Break-even: $5,500 / $190.04 = 28.9 months, a little under two and a half years.
4. Five-year view: $190.04 x 60 = $11,402 of payment savings, minus $5,500 of costs = $5,902. But because the new loan restarted at 30 years, its balance after five years is about $225,876, compared with $224,132 if you had kept the old loan. Subtracting that $1,744 difference leaves a true five-year gain of roughly $4,158.

The last step is the one most break-even calculations skip. Lower payments from a reset term are partly a rate saving and partly just slower repayment. A cleaner comparison is to match the remaining term: a 27-year loan at 6.25% on $242,000 costs $1,548.03 a month, saves $132.05, and breaks even in about 42 months. Total interest over the remaining life falls from about $302,380 on the old loan to about $259,562 on the 27-year loan, a genuine saving of roughly $42,800 if you hold to payoff. A new 30-year loan shows about $294,413 of interest, much closer to the old loan, because you are paying for three extra years.

Practical rule: if you expect to sell, exchange or refinance again within the break-even window, do not refinance. If you expect to hold far longer, compare the matched-term version too, and decide whether you want the lower payment (more cash flow and a safer DSCR) or the lower total interest. Note that the calculator’s “total interest savings” figure uses a simplified estimate of your current loan’s interest, so rely on the break-even and monthly figures and use an amortization schedule for lifetime interest.

Refinancing Out of an Adjustable or Balloon Loan

Not every refinance is about a lower rate. Many small landlords hold adjustable-rate loans, or commercial and portfolio loans with a balloon payment due after five to ten years. When the fixed period ends or the balloon approaches, the question is not whether to refinance but when and into what. Start early: if the property’s NOI no longer supports a new loan of the same size at current rates, you may need to bring cash to closing, accept a smaller loan, or sell.

For these loans, run the calculator with your expected payment after the reset rather than today’s payment. A refinance that looks expensive against your current teaser rate can be cheap against the adjusted one. Read your note for prepayment penalties as well; some investment loans charge a percentage of the balance if you pay off early, and that penalty belongs in your closing costs.

Should You Pay Points to Buy Down the Rate?

Lenders often offer a lower rate in exchange for discount points, where one point is 1% of the loan amount. Points are a second break-even decision layered on top of the first. Using the same $242,000 loan: if one point ($2,420) lowers the rate from 6.25% to 6.00%, the payment drops from $1,490.04 to $1,450.91, saving $39.12 a month. The points pay back in $2,420 / $39.12 = about 62 months, more than five years.

That is only worth it if you are confident you will keep this exact loan for well over five years, with no sale, exchange or later refinance. Many landlords who expect rates to fall, or who are not sure how long they will hold, prefer a no-points loan or even a slightly higher rate with lender credits that reduce closing costs. Ask each lender for loan estimates at two or three price points and run the break-even on each one. Ask for the quotes in the same written format so the fees can be compared line by line.

What Lenders Look At on a Rental Refinance

Approval and pricing depend on the property and on you. Expect a lender to review the appraisal and its rent estimate, current leases and rent history, your credit score, your debt-to-income ratio (for conventional loans) or the property’s DSCR (for loans qualified on property income), cash reserves after closing, and how many other financed properties you own. Gaps in rent collection, unpermitted work flagged by the appraiser, or a recent rehab without receipts can all reduce the loan or delay it.

Before applying, gather twelve months of rent deposits, current leases, your insurance declarations page, the latest property tax bill, and invoices for any improvements. Organized records shorten underwriting and make it easier to support the value. The expense tracking template helps keep these records ready year-round.

How Cash-Out Proceeds Are Taxed

The cash you receive from a cash-out refinance is not taxable income. It is borrowed money you must repay. IRS Publication 334 puts it directly: “Money borrowed through a bona fide loan is not income.” This is why landlords use refinancing to access equity without selling.

The interest is a different question. Under the interest tracing rules in Treas. Reg. § 1.163-8T, debt is allocated to expenditures according to how the loan proceeds are used, and the allocation is not affected by which property secures the loan. So a loan secured by your rental can produce personal interest, and a loan secured by your home can produce rental interest, depending on where the money goes. IRS Publication 527 applies this to rentals: when you refinance for more than the previous outstanding balance, the portion of the interest allocable to proceeds not related to rental use generally cannot be deducted as a rental expense. It gives the example of a $100,000 balance refinanced to $120,000, with the extra $20,000 used to buy a car; the points allocable to that $20,000 are nondeductible personal interest.

Example. You refinance the $242,000 balance into a $300,000 loan. The $242,000 that paid off the old rental loan keeps its rental character. If you spend the extra cash on a down payment for another rental, interest on that portion relates to the new rental. If you spend it on a car or a vacation, that share of the interest is personal and generally not deductible. Keep the proceeds in a separate account and document where they go, because tracing depends on records.

Loan costs follow their own rules. Publication 527 treats points as prepaid interest deducted over the life of the loan, and costs such as mortgage commissions, abstract fees and recording fees as capital expenses rather than interest. Remaining points on a paid-off loan may be deductible when that loan ends, unless you refinance with the same lender. This is general information, not tax advice; the rules have exceptions, so confirm the treatment with a CPA. The tax deduction checklist covers other rental deductions.

The Effect on DSCR

The debt service coverage ratio is net operating income divided by annual debt service. It measures how much room the property has before rent stops covering the loan, and it is the main test used by lenders that qualify loans on property income rather than your personal income.

Continue the example with a property worth $420,000 producing $30,000 of NOI a year:

• Current loan: $1,680.08 x 12 = $20,161 of debt service. DSCR = $30,000 / $20,161 = 1.49.
• Rate-and-term refinance at 6.25%: $1,490.04 x 12 = $17,880. DSCR = 1.68.
• Cash-out refinance to $300,000 (about 71% LTV) at 6.75%: $1,945.79 x 12 = $23,350. DSCR = 1.28. After paying off $242,000 and $7,000 of closing costs, you receive $51,000.

The cash-out costs about $3,190 a year more than keeping the current loan ($23,350 - $20,161) and about $5,470 more than the rate-and-term option. If the $51,000 goes into another rental earning 8% cash-on-cash ($4,080 a year), the cash-out roughly pays for itself. If it sits in savings, it does not. Lenders commonly look for DSCR somewhere around 1.0x to 1.25x or more, so in a weaker property a cash-out can hit the DSCR limit before the LTV limit. Check the property’s cushion with the break-even calculator.

Refinance vs Selling vs a 1031 Exchange

Landlords with large equity often face three choices: borrow against it, sell and pay tax, or sell and exchange into another property.

• Refinance: you keep the property, its appreciation and its depreciation. Because a loan is not a sale, no capital gains or depreciation recapture is triggered. The cost is a bigger loan, lower cash flow and more risk if values fall.
• Sell: you end the debt, the tenants and the maintenance. You pay tax on the gain, including up to 25% on unrecaptured section 1250 gain from depreciation (IRS Topic 409), capital gains rates on the rest, and possibly the 3.8% net investment income tax.
• 1031 exchange: you defer the tax by buying replacement real property held for investment or business use. Under IRS Publication 544, you must identify the replacement within 45 days and receive it by the earlier of 180 days or your return due date (including extensions). Debt relief counts: if the other party takes on your liabilities, you are treated as receiving money in that amount, which can create taxable gain unless offset by debt you assume or cash you add.

A refinance shortly before or after an exchange can raise its own questions, so plan the timing with your qualified intermediary and CPA. To compare keeping (with or without a refinance), selling, and exchanging on an after-tax basis, use the keep-or-sell rental property calculator and the 1031 exchange calculator.

Common Refinance Mistakes

• Comparing payments without accounting for the reset term, which overstates savings.
• Ignoring the break-even window and selling or exchanging before the refinance pays back.
• Rolling closing costs into the loan and forgetting you still pay them, with interest.
• Spending cash-out proceeds on personal items and still deducting all the interest on Schedule E.
• Taking the maximum cash-out and leaving the property with a DSCR too thin to absorb a vacancy.
• Accepting the first loan estimate instead of comparing several lenders on rate, points and fees.

Related reading: how and when to refinance rental properties, cash vs leverage, financing calculator and ROI calculator.