Refinance Calculator

The Consumer Financial Protection Bureau advises focusing on the break-even period rather than the traditional rule of thumb that you should refinance whenever rates drop 1% or more, which is overly simplistic. The real test is the break-even period: Closing Costs / Monthly Savings = months to recoup costs. If you plan to stay in the home longer than the break-even period, refinancing likely makes sense.

A $400,000 mortgage refinanced from 6.5% to 5.5% saves approximately $275/month. With $6,000 closing costs, break-even is 22 months. If you plan to stay 5+ years, total net savings exceed $10,500. However, if you might sell or refinance again within 2 years, the $6,000 in closing costs may not be fully recovered.

Cash-out refinancing (borrowing more than you owe to access equity) requires additional scrutiny — the new, larger loan means higher payments and more total interest even at a lower rate.

Rate-and-term refinancing simply changes the interest rate, loan term, or both without increasing the loan balance. This is the most straightforward type: lower your rate to save on interest, or shorten your term (30-year to 15-year) to build equity faster and save dramatically on total interest — a $300,000 mortgage at 5.5% costs $313,200 in interest over 30 years versus $131,400 over 15 years, a savings of $181,800.

Cash-out refinancing lets you borrow against accumulated equity — if your home is worth $500,000 and you owe $300,000, you could refinance for $375,000 and receive $75,000 in cash (minus closing costs) for renovations, debt consolidation, or investments. Cash-out rates are typically 0.125-0.25% higher than rate-and-term, and lenders limit cash-out to 80% LTV.

Beyond the headline interest rate, watch for:

• origination fees (0.5-1.5% of loan amount)
• appraisal fees ($400-600)
• title insurance ($1,000-2,000)
• mortgage points ($1,000-4,000 per point to buy down the rate by 0.25%)

Some lenders advertise 'no-closing-cost' refinancing but roll costs into a higher rate — over 30 years, this often costs more than paying upfront.

The biggest mistake is resetting the loan term without consideration: if you have 22 years left on your mortgage and refinance into a new 30-year loan, you have added 8 years of payments. To compare fairly, match the remaining term — refinance into a 20-year loan, or make the 30-year payment equivalent to your current payment to preserve the original payoff timeline.

Another mistake: refinancing frequently (every 2-3 years) to chase lower rates accumulates closing costs that may exceed cumulative savings.

The break-even point is the single most important refinance number: Break-Even (months) = Closing Costs ÷ Monthly Savings.

If a refinance saves $349 a month and costs $5,000 to close, you break even in about 14 months ($5,000 ÷ $349). Stay in the home past that point and every month of savings is pure gain; sell or refinance again before it and you lose money on the closing costs.

Compare the break-even period against how long you realistically expect to keep the loan — that comparison, not the rate drop alone, decides whether refinancing pays.

Refinance savings come from a lower rate, and they scale with loan size and remaining term. Dropping a $300,000 mortgage from 7.5% to 6.0% cuts the payment by roughly $300 a month and can save tens of thousands over the loan's life.

The larger the balance and the bigger the rate drop, the greater the savings — even a 0.5% reduction on a large loan is meaningful.

But headline lifetime savings depend on the term: extending from 25 to 30 years lowers the payment yet can raise total interest, so always compare total interest old vs new, not just the monthly figure.

Term choice is where many refinances go wrong. Refinancing 22 remaining years into a fresh 30-year loan lowers the monthly payment but adds 8 years of payments and can increase total interest even at a lower rate.

Shortening the term instead — say 30-year to 15-year — sharply cuts lifetime interest (often by half) while building equity faster, usually for a modestly higher payment.

To refinance fairly, either match your remaining term or keep paying your old payment amount on the new lower-rate loan, preserving the original payoff date while capturing the rate savings.

A 'no-closing-cost' refinance doesn't eliminate fees — it rolls them into a higher interest rate or adds them to the loan balance. The trade-off is simple: you avoid upfront cash but pay more over time.

If you expect to keep the loan only a few years, a no-closing-cost option can win because you never reach the break-even on paid-upfront fees. If you plan to stay long term, paying closing costs upfront and locking the lowest rate almost always costs less over the full loan.

Run both scenarios through a mortgage calculator and compare total cost over your expected holding period.

Discount points let you pay cash upfront to lower your interest rate — typically one point costs 1% of the loan and reduces the rate by about 0.25%. On a $300,000 loan, one point is $3,000 to shave roughly a quarter point off the rate.

Points make sense only if you keep the loan long enough to recoup the cost through lower payments, a break-even calculation just like the refinance itself.

For short holding periods, skip points and take the higher rate; for a long-term forever home, buying down the rate can save significantly over decades.

Refinancing isn't always smart. Avoid it when:

• the break-even period exceeds how long you'll stay
• the rate drop is too small to overcome closing costs
• you reset a nearly-paid-off loan back to 30 years and balloon total interest

Serial refinancing every couple of years to chase tiny rate dips piles up closing costs that can exceed the savings. Cash-out refinancing to fund consumption like cars or vacations converts short-term spending into 30 years of mortgage interest.

Refinance for a clear, math-backed reason — lower lifetime cost, a shorter term, or value-creating use of equity — not just because rates ticked down.

Government-backed loans offer simplified 'streamline' refinances that cut paperwork and cost.

• The FHA Streamline (administered by HUD) skips a new appraisal and most income verification for existing FHA borrowers.
• The VA's IRRRL (Interest Rate Reduction Refinance Loan, detailed on VA.gov) does the same for veterans, often with no out-of-pocket costs.

Both are designed purely to lower the rate or move from an adjustable to a fixed rate, and both still require a net tangible benefit — a real rate or payment reduction.

If you already hold an FHA or VA loan, a streamline refinance frequently offers a faster, cheaper path to savings than a conventional refinance.

If you bought with less than 20% down on a conventional loan, you're paying private mortgage insurance — and refinancing can eliminate it. Once your home's value and paydown push you past 20% equity (80% loan-to-value), a refinance into a new loan without PMI removes that monthly cost, which can be $100-$300 a month.

Rising home values often get borrowers to 20% equity faster than scheduled.

Note that conventional loans can sometimes cancel PMI without refinancing once you reach the threshold, while FHA's MIP usually requires a refinance into a conventional loan to shed — making the PMI-removal refinance especially valuable for FHA borrowers.