Should I give up my low mortgage rate to move?
Run it as a total-cost decision, not a rate comparison. The gap is real: a $500,000 balance at 2.65% — the record-low territory of early 2021, per Freddie Mac’s survey — costs about $2,014 a month in principal and interest, while the same balance at 6.625% costs about $3,201, roughly $1,200 a month more for identical borrowing. But the rate is one input of four: the payment gap, what the replacement home costs (it appreciated too), the equity your sale releases, and how long you will hold the next home. And selling is not the only door — renting out the old home keeps the cheap loan working, and a later refinance can trim the new loan if rates fall. The mistake is letting the old rate veto a move your life actually needs.
Last reviewed 2026-08-24
| Key number | Value | Source |
|---|---|---|
| 30-year fixed record low (January 2021) | 2.65% | Freddie Mac Primary Mortgage Market Survey |
Price the handcuffs honestly
Compute three numbers: your current principal-and-interest payment, the payment on the replacement home at today’s rates with your realistic down payment, and the difference times twelve. That annual figure is what the move costs in financing — a real number to weigh against a real thing: the fourth bedroom, the shorter commute, the school district. People pay comparable sums for objectively smaller life upgrades; the point is to decide with the number on the table instead of letting a percentage sign decide for you.
The equity illusion in a moved-up market
Your home appreciated since you bought — but the home you want appreciated too, and the same percentage on a bigger price is more dollars. Equity released by the sale often covers a smaller share of the replacement than intuition expects, so the new loan balance frequently lands near the old one even after years of paydown. Run the actual chain — sale price, payoff, costs, new down payment, new balance — before assuming the equity does more work than it will.
Alternative one: keep the loan, rent the house
The cheap mortgage is an asset in its own right — a long-term fixed liability below market. Renting the departure home keeps that asset working: the tenant services the low payment while lenders can count most of the documented rent toward qualifying you for the next home. You take on landlording in exchange, but this is the standard escape from lock-in: move without surrendering the rate. How rental income qualifies you
Alternative two: make this house work harder
If the move is about space rather than place, renovating can buy the missing bedroom without touching the first mortgage. Financing an addition with a home-equity line or fixed second costs more per borrowed dollar than your old rate — but only the renovation dollars pay the higher price, while the big balance keeps its cheap rate. Compare that blend against a full move at today’s rates; it frequently wins on pure financing cost.
If you do move: structure for the future refi
Taking a higher rate today is not forever — loans are refinanced when rates fall, so avoid paying big upfront points for a rate you may replace, and keep the loan structure clean for that option. And if what pinches later is the payment rather than the rate, a servicer recast after a windfall lowers the required payment without touching the loan. Ralo — an automated mortgage broker, not a lender — prices these scenarios across lenders from one application, which is how a move-vs-stay decision gets real numbers instead of vibes. Recast vs refinance
Ralo is an automated mortgage broker — not a lender — that compares multiple lenders from one application, earns a thin commission, and shows rate, APR, and fees upfront. Rates shown anywhere on this site are illustrative examples, not a loan approval, rate lock, or commitment. Available where licensed: California, Colorado, and Texas.