Why a Cash-Out Refi Can Save You Money, Even If Your Rate Goes Up

I hear this all the time: "Jerry, I locked in at 3.5% during COVID. Why would I refinance into a higher rate?" And honestly, if all we're talking about is the mortgage itself, they're right. Trading a 3.5% rate for a 6.5% rate doesn't make sense on its own.

But here's what changes the math completely: other debt. If you're carrying $30,000 in credit card balances at 24.99%, a $15,000 auto loan at 8%, and a $10,000 personal loan at 12%, you're paying a blended rate across all your debt that's way higher than what you think. That's where a cash-out refinance starts looking a lot different.

The Real Cost of Keeping Your Low Rate

Let's say your current mortgage payment is $1,800 a month. Great rate, comfortable payment. But you're also paying $600 in credit card minimums, $450 on the car, and $300 on the personal loan. That's $3,150 a month going out the door. And the credit card debt alone is costing you thousands a year in interest because minimum payments barely touch the principal.

Now let's say you do a cash-out refi. Your mortgage balance goes up because you're rolling $55,000 of debt into it. Your new rate is 6.5% instead of 3.5%. Your mortgage payment goes up to around $2,560. But here's the thing: you just eliminated $1,350 in other monthly payments. Your total monthly obligation drops from $3,150 to $2,560. That's almost $600 a month back in your pocket.

It's About Total Cost, Not Just the Mortgage

The mistake most people make is looking at the mortgage rate in isolation. They see the rate going up and stop there. But rates are only one piece. What matters is the total interest you're paying across all your debt each month. When you move high-interest debt into a lower-rate mortgage, even at today's rates, you're paying dramatically less interest overall.

A 6.5% mortgage rate on $55,000 costs about $3,575 in interest per year. That same $55,000 at a blended rate of 18% (which is conservative for a mix of credit cards and personal loans) costs almost $10,000 in interest per year. You're saving over $6,000 annually in interest alone.

When It Makes Sense (and When It Doesn't)

This strategy works best when you have significant high-interest debt, like credit cards or personal loans. The bigger the rate gap between your current debt and the new mortgage rate, the more you save. It also helps if you've built up equity in your home, because you need enough to cover the cash-out amount while staying within lending limits (typically 80% loan-to-value for a conventional cash-out refi).

Where it gets tricky: if you consolidate your debt and then run the credit cards back up, you've made the problem worse. This works when it's part of a plan to change the pattern, not just shift the balances around.

It also might not make sense if your other debt is small, like a $3,000 credit card balance. The closing costs of a refi wouldn't justify the savings in that case.

Run Your Own Numbers

I built a debt consolidation calculator on this site so you can plug in your actual numbers and compare your current payments to a cash-out refi or HELOC side by side. It takes about two minutes and shows you exactly what the monthly difference looks like.

If the numbers look promising, that's when it's worth having a real conversation about your specific situation, because the calculator uses estimates. I can pull your actual rates, factor in closing costs, and show you the true cost comparison.