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Refinance break-even on a rental property: how long until it pays off?

By Spruce Sheets · Updated November 14, 2026 · 6 min read

When rates drop, the question every landlord with a mortgage asks is: should I refinance? The first number to look at is the break-even point, the number of months it takes for the lower payment to earn back what the refinance cost. It's a simple calculation, but it has a well-known blind spot. This guide covers both the simple method and a fairer check, with a worked example.

The simple break-even formula

Break-even (months) = total closing costs ÷ monthly savings

• Total closing costs include lender fees, discount points, appraisal, title and settlement fees, recording fees and any prepayment penalty on the old loan. Use the loan estimate your lender gives you. Prepaid items such as escrow deposits and interest are not really a cost of refinancing (you'd pay those anyway), so many people leave them out.
• Monthly savings is your current principal-and-interest payment minus the new one. Leave out taxes and insurance, since they don't change with the loan.

If you plan to keep the property and the new loan longer than the break-even period, the refinance pays for itself on this measure. If you might sell or refinance again sooner, it may not.

A worked example

A landlord took out a $230,000, 30-year fixed loan at 7.5% three years ago. The numbers below are made up for illustration.

	Current loan	New 30-year loan
Balance today	$223,133	$223,133
Interest rate	7.5%	6.25%
Years left	27	30
Monthly payment (P&I)	$1,608.19	$1,373.87
Closing costs	–	$5,200

Monthly savings = $1,608.19 − $1,373.87 = $234.33.

Break-even = $5,200 ÷ $234.33 = 22.2 months, so the refinance has paid for itself in month 23.

For a rental, that $234.33 also goes straight to monthly cash flow, and the property's debt service coverage ratio (DSCR) improves because the same income now covers a smaller payment.

The blind spot: resetting the clock

The new loan runs 30 years, but only 27 years were left on the old one. Part of the lower payment comes from the lower rate, and part comes from simply spreading the balance over three extra years. The simple break-even counts both as "savings".

Here's the same refinance at 6.25% with a 27-year term, matching the time left on the old loan:

	New 30-year	New 27-year
Monthly payment	$1,373.87	$1,427.34
Monthly savings	$234.33	$180.85
Simple break-even	22.2 months	28.8 months
Total interest still to pay	$271,459	$239,325

The 27-year loan looks worse on simple break-even (28.8 vs 22.2 months), yet it costs about $32,000 less in interest over its life. For comparison, keeping the current loan means $297,922 of interest still to pay. Both refinance options beat that comfortably, even after $5,200 in costs.

Another way to see it: compare the interest you save rather than the payment. With either new loan, the interest saved passes the $5,200 in costs in month 23, because in the early years almost the whole payment difference is interest. The 27-year loan's longer simple break-even is mostly principal you're paying back faster, which is still your money.

A better test: your position after N years

The fairest check is to pick how long you realistically expect to keep the loan, then compare where you'd stand with and without the refinance. Count three things: payments saved, closing costs, and the difference in loan balance.

Five years after refinancing into the 30-year loan in our example:

• Payments saved: 60 × $234.33 ≈ $14,060
• Closing costs: −$5,200
• Loan balance: $208,266 with the new loan vs $207,640 if you'd kept the old one, so you owe $626 more.
• Net result: about $8,234 better off than keeping the current loan.

If you expect to sell in two years, the same check gives a much thinner result: $5,623.84 in savings barely covers the $5,200 in costs, and you'd owe slightly more on the new loan. That's the kind of answer the simple break-even can hide.

Rolling closing costs into the loan

Many lenders let you add closing costs to the new loan. In our example the new balance would be $228,333, the 30-year payment $1,405.88, and the monthly savings $202.31. You pay nothing at closing, but you pay interest on the $5,200 for years, and your equity is $5,200 lower on day one. It's a cash-flow choice, not a free refinance.

Other things that change the answer

• Points. Paying discount points lowers the rate but raises closing costs. Run break-even with and without points to see if the lower rate is worth it over your expected holding period.
• Prepayment penalties. Some investor loans (DSCR and commercial loans in particular) charge a penalty for paying off early. It belongs in closing costs.
• Escrow refunds. When the old loan is paid off, its escrow balance is typically refunded and the new loan collects a fresh one. That's timing, not cost.
• Taxes. On a rental, mortgage interest is generally a deductible expense, so lower interest also means a smaller deduction. Points on a rental loan are generally deducted over the life of the loan rather than all at once. Ask a tax professional how it applies to you; this is not tax advice.
• Your plans. Thinking about a cash-out refinance next year? Then a rate-and-term refinance now means paying closing costs twice. See cash-out refinance on a rental property.

Rate-and-term refinance and rental cash flow

For a rental, the lower payment is more than a saving on paper: it's extra cash flow every month, and it improves the debt service coverage ratio (DSCR), which matters if you plan to borrow again. In the example, if the property's net operating income were $1,800 a month, DSCR would go from 1.12 with the old payment to 1.31 with the new 30-year loan. Some investors deliberately choose the longer term for that reason, and then make extra principal payments when cash flow allows. That keeps the flexibility of a lower required payment while still paying the loan down faster (check that the new loan has no prepayment penalty first).

When the numbers say "wait"

• Small rate drop, high costs. If the new rate is only slightly lower, break-even can stretch well beyond the time you expect to keep the loan.
• You're likely to sell. If you plan to sell within a couple of years, the costs may never be recovered.
• Prepayment penalty on the current loan. Some investor loans have step-down penalties that shrink each year; waiting may be cheaper.
• Another move is coming. If a cash-out refinance or a sale is likely soon, a rate-and-term refinance now means paying closing costs twice.

Step-by-step checklist

1. Get your current balance, rate and months left from your latest mortgage statement.
2. Get a loan estimate for the new loan, including all fees and any points.
3. Add the prepayment penalty on your current loan, if any.
4. Calculate the monthly savings and simple break-even.
5. Recalculate with a term that matches the years you have left.
6. Compare your total position after the number of years you realistically expect to keep the loan.
7. Check the effect on monthly cash flow and DSCR, especially if you plan to borrow against the property again.

General information with a made-up example. Not financial, mortgage, tax or legal advice, and not a recommendation to refinance. Rates, fees and lender rules vary.

Frequently asked questions

How do you calculate the break-even point on a refinance?

Divide the total closing costs by the monthly savings in principal and interest. For example, $5,200 in costs and $234.33 in monthly savings gives about 22.2 months, so the refinance pays for itself in month 23.

Is a shorter break-even always better?

Not by itself. Resetting a loan to a new 30-year term lowers the payment partly by stretching repayment, which shortens the simple break-even. Comparing interest paid, or your total position after a set number of years, gives a fairer picture.

What if I roll the closing costs into the new loan?

You pay nothing at closing, but the costs are added to the balance and you pay interest on them. The monthly savings shrink, and the costs are still there; they just come out of your equity instead of your bank account.

Keep reading

• Cash-out refinance on a rental property: how the numbers really work
• How to calculate rental property cash flow, step by step
• How to track rental income and expenses in a spreadsheet