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Refinance

When does refinancing actually make sense?

The short version
  • Breakeven is the only number that matters: closing costs divided by monthly savings, in months.
  • Refinance when you plan to stay past breakeven by a comfortable margin.
  • The "1% rule" is a folk rule. On large balances a quarter-point can be enough; on small balances a full point may not be.
  • Non-rate goals, dropping mortgage insurance, ditching an ARM, shortening the term, can justify a refinance even when the rate gap is small.
  • Don't try to time the bottom. The buyers who win at it usually got lucky on the week they happened to need a loan.

The four questions to ask

One, what is the new monthly payment compared to today, and what does that delta do for you? Two, what does the new loan cost to close, and how many months of savings does it take to pay that back? Three, how long do you realistically plan to stay in this home? Four, are there other goals (debt consolidation, removing mortgage insurance, switching out of an adjustable loan) that change the picture?

If the answers line up cleanly, refinancing is usually a good idea. If they conflict, slow down.

Rules of thumb that often mislead

"Refinance when rates drop a full point" is a folk rule, not math. On a small loan balance, even a one-point drop may not clear the closing costs in any reasonable timeframe. On a large balance, a quarter-point can be enough to make sense. Always run the actual breakeven number for your situation.

"Resetting the clock is bad" is also overstated. Yes, a fresh 30-year term can increase total lifetime interest. But a lower payment can free up cash flow for higher-priority goals. The right call depends on which goal you care about most.

Watch the bond market, not the headlines

Mortgage rates move with the bond market, not directly with Federal Reserve announcements. Watching the 10-year Treasury gives you a cleaner read than watching cable news. That said, trying to time the bottom is the same game as timing the stock market. The buyers and owners who win at it usually got lucky on the week they happened to need a loan.

Decision guide

Not sure if a refinance is the right tool? The refinance vs recast guide walks through when each one fits.

Frequently asked questions

When does refinancing actually make sense?
Refinancing makes sense when your monthly savings recoup the closing costs comfortably before you plan to leave the home, or when refinancing achieves a specific goal, like dropping mortgage insurance, switching out of an adjustable rate, or shortening the term. The rate gap matters less than the breakeven on your specific balance.
Is the 1% rule for refinancing real?
No. "Refinance when rates drop a full point" is a folk rule, not math. On a small balance, even a one-point drop may not clear the closing costs in any reasonable timeframe. On a large balance, a quarter-point drop can be enough.
How do I calculate my refinance breakeven?
Add up all closing costs on the new loan, then divide by the monthly payment savings. The result is the number of months you need to stay in the home for the refinance to pay for itself. Past that point you are net ahead.
Should I wait for rates to drop further?
Usually not, if the current math already works for your situation. Trying to time the bottom of the rate cycle is the same game as timing the stock market, and most borrowers who try end up either missing a real opportunity or refinancing twice.
How often can I refinance my mortgage?
There is no legal limit, but most lenders want to see at least 6 months of seasoning on the existing loan before a new refinance, and there is no point refinancing twice unless the second move clears its own closing costs on its own breakeven.
Does refinancing hurt my credit?
Briefly. The hard credit pull and the new account create a small temporary dip, usually 5 to 15 points, that recovers within a few months as the new account ages. The long-term impact is negligible if you pay on time.

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