Franklin Loan Center
Justin Walsh, Branch Manager
Justin Walsh Branch Manager · Franklin Loan Center · NMLS #968831

Homeowner guide

The real cost of moving up

Updated October 1, 2026 6 min read Includes a calculator

You love your low rate, and the next house costs more at a higher one — so the move feels impossible. But many homeowners make it for far less of an increase than the raw payment comparison suggests, because that comparison leaves out almost everything that works in your favor.

Why the payment comparison is misleading

Put your current payment next to the new one and the gap looks brutal. That number is real — but it’s gross, not net. It counts the bigger mortgage and ignores the sale that funds the move, the debts that disappear at closing, the larger tax deduction, and, for many sellers, a property-tax rule that follows them to the new home. Once those are in, the real monthly increase is usually a fraction of the headline.

What actually shrinks the increase

  • Debts cleared at closing. Sale proceeds can pay off cars, cards, or other loans. Those monthly payments vanish, and the difference often offsets much of the higher mortgage — while also helping you qualify.
  • A bigger interest deduction. A larger loan means more deductible mortgage interest, so part of the increase comes back at tax time rather than out of pocket.
  • Prop 19, if you’re 55+. You may carry your low Prop 13 tax base to the new home — even a pricier one — instead of a full reassessment, saving thousands a year.
  • Equity and appreciation. You’re not spending the move — you’re moving equity into a home that keeps building it.

Run the real move-up number

The Move-Up calculator walks your sale proceeds, the debts you’d clear, the new payment, the tax change, and Prop 19 — and lands on the true monthly difference, not the scary one. Nothing is saved or sent.

Open the calculator

A note for homeowners 55 and older

If you qualify for Prop 19, moving up is a very different calculation than most people assume — you can take your low property-tax base with you and only be reassessed on the amount you buy up. It’s often the single biggest lever in the whole decision. Our Prop 19 guide walks through exactly how that works, with its own calculator.

Common questions

Why does moving up cost less than the payment suggests?

The raw payment comparison ignores several offsets: sale proceeds can clear high-interest debts whose payments disappear, the larger mortgage produces a bigger interest deduction, and homeowners 55+ may keep their low property-tax base under Prop 19. Netting those out, the real monthly increase is frequently a fraction of the payment difference.

Can I move up and keep my low property taxes?

If you’re 55 or older, Prop 19 lets you transfer your low Prop 13 tax base to the new home — even a more expensive one, where you’re only reassessed on the difference. That can save thousands a year versus a full reassessment and materially lowers the cost of moving up.

Should I sell first or buy first when moving up?

It depends on your equity, your cash reserves, and the local market. Options like a bridge strategy or a contingent offer each have trade-offs. The right call comes from running your proceeds and financing together — your loan officer and agent can map it to your situation.

Curious what moving up would really cost you?

Send Justin your current loan and a target price, and he’ll run the sale, the debts you could clear, and the financing together — so you see the real number before you decide.

See my real move-up cost