Short answer: refinance when the savings outrun the costs on your own timeline — and not before. A refinance is a purchase: you pay closing costs now to buy a lower payment for as long as you keep the loan. Whether that purchase pays off is one division problem, plus two traps. Here is the test, the traps, and where your home's tracked value and equity fit.
Take the refinance's total closing costs and divide by the monthly payment savings. The result is the break-even month: before it, the refinance has cost you money; after it, every month is savings collected. One labeled example for the shape of it — closing costs of $6,000 against savings of $200 a month break even at 30 months. Your numbers will differ in every input, which is exactly why the test has to run on your quote and not on a rule of thumb about how far rates have fallen. The follow-up question is the honest one: will you still be in this home, with this loan, comfortably past that month? If a move, a sale or another refinance is likely before it, the answer is no — however good the new rate looks in an advertisement.
A new loan usually starts a fresh term. A lower payment built by stretching the remaining years back out is partly an illusion: you pay interest longer, and the total interest over the new loan's life can exceed what the lower rate saves. The fair comparison holds the end date fixed — compare the new offer against your current loan over the same remaining years, or ask what the payment would be on a term that matches the time you actually have left. If you do refinance, keeping your old payment amount against the new, lower-rate loan is how the break-even math turns into real equity.
Lenders underwrite against loan-to-value — what you owe divided by what the home is worth — and that is where your tracked numbers stop being trivia. More equity generally means better pricing and an easier approval; crossing to owing less than 80% of the value is also the line where private mortgage insurance can come off, which is itself a monthly saving that belongs in the break-even. Going the other way — cash out, or rolling the closing costs into the balance — raises what you owe and spends equity you may have counted for something else. Neither is automatically wrong; both belong in the decision on purpose. Your Homeowner HQ record holds the two home-side inputs — current value, everything owed — updated monthly by your own agent, so the conversation with a lender starts from your real figures instead of a sales estimate.
Get the closing costs and the new payment in writing. Run the division. Ask what the payment and total interest look like on a term matched to your remaining years, not only on the longest one. Decide how long you honestly expect to keep the home, and require the break-even to land well inside it. And if the quote leans on your home's value, remember it will be tested by the lender's own appraisal — your agent's tracked estimate and a CMA are the preparation, not the substitute.
A Homeowner HQ estimate is not an appraisal.
Your own agent sends a monthly value update from Homeowner HQ — the estimate, labeled as an estimate, with your equity beside it — and HQ runs on Amazon AWS. Realtors and lenders use the same HQ together: homeowners stay connected to their own agent, and the monthly trend is the honest way to watch what is moving the number.
Homeowners are always free. Realtors pay $25/mo to join and lenders join at the $5/mo founding rate, at any book size, with no setup fee; sending messages inside HQ is a $100/mo unlock ($125/mo total for realtors, $105/mo total for lenders). A lender-sponsored realtor joins for $0.
Homeowner HQ is an AI-powered marketing department for agents and lenders — a relationship and revenue engine, not a homeowner database. A homeowner's record routes them back to their own agent; it is never sold and never shown to lenders.