Mortgage Refinance Calculator
Compare your current mortgage with a refinanced loan to see if switching makes financial sense. Calculate monthly savings, total interest, and your break-even point.
Refinance Formulas
Monthly Payment
Break-Even Point
Total Interest
When Does Refinancing Make Sense?
Refinancing your mortgage means replacing your current home loan with a new one, usually to get a lower interest rate or different terms. It's not always the right move though, so it's worth running the numbers first.
The general rule of thumb is that refinancing makes sense when you can lower your rate by at least 0.5-1%, plan to stay in your home long enough to pass the break-even point, and the closing costs are reasonable relative to your savings.
Lower Your Rate
Even a 0.5% rate drop can save thousands over the life of a loan
Reduce Monthly Payments
Free up cash each month for other financial goals
Change Your Term
Switch from a 30-year to 15-year mortgage to pay off faster
Cash-Out Option
Tap into your home equity for renovations or debt payoff
Understanding the Break-Even Point
The break-even point is probably the single most important number when deciding whether to refinance. It tells you how many months it takes for your monthly savings to cover the closing costs you paid upfront.
For example, if your closing costs are $4,000 and you save $200 per month, your break-even point is 20 months. If you plan to sell or move before those 20 months are up, refinancing would actually cost you money.
Most financial advisors suggest refinancing only if you'll stay in the home at least 2-3 years past the break-even point. This gives you a comfortable buffer and ensures the savings are meaningful.
Common Refinancing Mistakes to Avoid
Resetting to 30 Years
If you're 10 years into a 30-year mortgage and refinance into a new 30-year term, you'll pay interest for 40 total years. Consider a shorter term if you can afford slightly higher payments.
Ignoring Closing Costs
Closing costs typically run 2-5% of the loan amount. A 'no-closing-cost' refinance usually means the costs are rolled into a higher rate, which can cost more long-term.
Only Looking at the Rate
A lower rate doesn't always mean a better deal. Factor in the term length, closing costs, and how long you plan to keep the loan before comparing offers.
Not Shopping Around
Rates can vary by 0.5% or more between lenders. Get at least 3-4 quotes and don't be afraid to negotiate. Each lender wants your business.
Frequently Asked Questions
How much does it cost to refinance a mortgage?
Closing costs for a refinance typically range from 2% to 5% of the loan amount. On a $300,000 loan, that's $6,000 to $15,000. These costs include appraisal fees, title insurance, origination fees, and other charges. Some lenders offer no-closing-cost options, but they usually come with a slightly higher interest rate.
How long does the refinancing process take?
Most refinances take 30-45 days from application to closing, though it can sometimes stretch to 60 days. The timeline depends on the lender's workload, how quickly you provide documents, and whether there are any issues with the appraisal or title search.
Will refinancing hurt my credit score?
Applying for a refinance will trigger a hard credit inquiry, which typically drops your score by 5-10 points temporarily. If you shop multiple lenders within a 14-45 day window, the credit bureaus usually count it as a single inquiry. Your score should recover within a few months.
Can I refinance with bad credit?
It's possible but harder. FHA streamline refinances may work if you already have an FHA loan. For conventional loans, most lenders want a credit score of at least 620. With lower scores, you'll likely face higher rates, which may eliminate the benefit of refinancing.
Should I refinance if I'm planning to move in a few years?
It depends on your break-even point. If your break-even is 18 months and you plan to move in 3 years, you'd still save 18 months worth of lower payments. But if your break-even is 3 years and you're moving in 2, you'd lose money. Always compare the break-even timeline to your moving plans.
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