How to Calculate the Break-Even Point on a Refinance

Before you refinance — whether through a VA IRRRL or a conventional refinance — one number matters above all others: the break-even point. This is the number of months it takes for your monthly savings to fully cover the cost of the refinance. If you stay in your home longer than that, the refinance puts money in your pocket.

The Break-Even Formula

It’s that simple. The formula divides your total upfront costs by how much you save each month with the new, lower payment.

Example: VA IRRRL Refinance

If you plan to stay in your home for at least 17 months after closing, you will fully recover the cost of the refinance and save money from that point forward.

What Counts as a Closing Cost?

Include all costs associated with the new loan:

• VA funding fee (0.5% for IRRRL) or lender fees
• Title and settlement fees
• Recording and escrow fees
• Any points paid to buy down the rate

Prepaid items like homeowners insurance and property taxes are not true closing costs. See our full breakdown in: Refinance Closing Costs in South Carolina.

Rolling Costs Into the Loan

If you roll closing costs into your loan balance, you don’t pay them upfront — but they still exist. In this case, factor in the additional interest you’ll pay on the higher balance over time. For short holding periods, rolling costs in is usually fine. For long ones, it’s worth calculating both scenarios.

When Is the Break-Even Too Long?

A break-even of 12–24 months is generally considered favorable. If your break-even is 4+ years out and you’re not sure you’ll stay that long, the refinance may not be worth it — even if the new rate is lower. Read our full guide: When Does It Make Sense to Refinance?

Break-Even for Veterans Using the IRRRL

One advantage of the VA IRRRL is its low funding fee (0.5%) and reduced closing costs, which shortens the break-even timeline compared to a conventional refinance. Veterans with rate drops of 0.5% or more often find break-even points well under 2 years. Learn more: How Soon Can You Refinance a VA Loan?

Does Refinancing Hurt the Numbers if Rates Rise Later?

Once you lock in a lower rate, your savings are guaranteed as long as you hold the loan. Market rate changes after closing do not affect a fixed-rate refinance. For adjustable-rate products, this is more nuanced — another reason many borrowers prefer to lock a fixed rate when refinancing. Read more: Does Refinancing Hurt Your Credit Score?