# Refinance Calculator Estimate mortgage refinance savings, compare new and old amortization schedules, and find your closing cost break-even month. --- - **Canonical URL:** https://dothecalculation.com/calculators/refinance-calculator - **Category:** Financial calculators - **Publisher:** Do The Calculation (https://dothecalculation.com) - **Cost:** Free, no account or sign-up required - **Privacy:** Runs entirely in the browser; inputs are never sent to a server - **Methodology:** https://dothecalculation.com/methodology --- ## Analyze your mortgage refinance options Compare your current loan amortization with new refinance offers to calculate monthly payment changes, upfront closing fees, break-even timelines, and lifetime net interest savings. - Monthly payment savings - Break-even timeline analysis - Lifetime net interest impact ## How Mortgage Refinancing Works Mortgage refinancing involves replacing your existing home loan with a new loan, typically to secure a lower interest rate, adjust the loan term, or convert equity into cash. The new loan pays off the remaining balance of the old loan, and you begin making payments under the new rate and term. While refinancing can reduce your monthly obligations, it is not free. Borrowers must pay **closing costs** (which range from 2% to 5% of the loan amount), including lender origination fees, appraisal fees, title insurance, and recording fees. To evaluate whether refinancing is financially beneficial, you must weigh the monthly savings against these upfront transaction costs to identify your break-even point. ## Calculating the Refinance Break-Even Timeline The break-even timeline represents the number of months required for your accumulated monthly payment savings to cover the upfront transaction costs of the refinance. If you plan to move or sell the home before reaching the break-even month, the refinance will result in a net financial loss. The basic break-even formula is: $$\text{Break-Even Months} = \frac{\text{Total Upfront Closing Costs}}{\text{Monthly Payment Savings}}$$ For example, if the refinance closing costs are $5,000, and the new mortgage rate lowers your monthly payment by $250, your break-even timeline is \(5,000 / 250 = 20\text{ months}\). You must retain the loan for at least 21 months to realize actual net financial savings. ## The Risk of Rolling Closing Costs into the Loan Lenders often offer to "roll" closing costs into the new mortgage principal so that you do not have to pay cash out-of-pocket at closing. While this keeps cash in your bank account, it directly increases the loan balance. Rolling costs into the principal means you will pay interest on those closing costs over the entire loan term. This reduces your monthly savings, increases your lifetime interest expense, and extends your break-even timeline. ## Rate-and-Term vs. Cash-Out Refinancing Refinances generally fall into two categories, each serving distinct financial strategies: **Rate-and-Term Refinance**: Primarily aimed at lowering the interest rate or shifting the duration of the loan (e.g., converting a 30-year mortgage to a 15-year mortgage). The principal balance remains identical to the outstanding old debt (plus any rolled fees). **Cash-Out Refinance**: Refinancing for an amount larger than the existing loan balance, taking the difference as cash. This utilizes accumulated home equity to fund home renovations, consolidate high-interest debt, or cover large expenses. Cash-out loans usually come with slightly higher interest rates and strict loan-to-value (LTV) limits (typically capped at 80%). ## Shortening the Term: Refinancing to a 15-Year Mortgage If interest rates drop significantly, you may have the opportunity to refinance from a 30-year term to a 15-year term with a minimal increase in monthly payment. Shifting to a 15-year term dramatically accelerates equity building, cuts your total interest expense, and pays off the home years earlier. Use this calculator to compare the amortizations of both options. ## How to Use This Calculator Enter your original loan amount, current interest rate, original term, and how many months you have already paid. The calculator amortizes your existing loan forward to find your remaining balance and current monthly payment. Enter the new interest rate, new term, and estimated closing costs for the refinance offer. Choose whether to pay closing costs out of pocket or roll them into the new loan balance. Compare your current and new monthly payments, review the break-even timeline, and check the total net savings over the life of the new loan to decide whether the refinance is worth pursuing. ## Worked Example: Refinancing a $300,000 Loan After 3 Years Consider a $300,000 mortgage at 6.5% over 30 years, with 36 monthly payments already made. The current monthly principal and interest payment is **$1,896.20**, and the remaining balance after those 36 payments is **$289,251.73**. Refinancing this balance into a new 30-year loan at 5.0%, paying $6,000 in closing costs out of pocket rather than rolling them in, produces a new monthly payment of **$1,552.77** — a monthly savings of **$343.44**. Dividing the $6,000 closing cost by the $343.44 monthly savings gives a break-even point of **17.47 months** (under 1.5 years). Over the full remaining loan life, the total net savings after accounting for closing costs reaches **$49,374.43**, making this refinance worthwhile for any homeowner planning to stay in the home beyond the break-even point. ## Frequently asked questions ### What is a refinance break-even point? The break-even point is the number of months it takes for the monthly savings from a lower mortgage payment to recover the upfront closing costs of the refinance. ### How much are closing costs on a refinance? Closing costs typically range from 2% to 5% of the new loan amount. This covers origination charges, credit checks, title insurance, home appraisal fees, and local recording fees. ### What is a "no-closing-cost" refinance? In a "no-closing-cost" refinance, the lender pays the upfront fees in exchange for charging a slightly higher interest rate, or they roll the fees directly into your new loan principal. ### Should I refinance if my payment will go up? Usually no, unless you are shortening your term (e.g., from 30 to 15 years) to pay off the loan faster and save substantial lifetime interest, or doing a cash-out refinance to pay off higher-interest debt. ### Can I refinance a government loan (FHA/VA)? Yes. FHA and VA loans offer "Streamline Refinance" options that require less paperwork, appraisals, and documentation compared to standard conventional refinancing programs. ### How long do I need to wait to refinance after buying? Conventional loans often have no waiting period, but lenders may require you to wait 6 months (seasoning period). Refinancing FHA or VA loans typically requires waiting 6 to 12 months. ### Will refinancing lower my credit score? Refinancing requires a credit check (hard inquiry) and resets your loan age, which can temporarily lower your score by a few points. However, consistent on-time payments on the new loan will rebuild it. ### What is a cash-out refinance? A cash-out refinance replaces your current mortgage with a larger loan, allowing you to withdraw a portion of your home's accumulated equity as cash at closing. ### Can I refinance to remove PMI? Yes. If your home has appreciated or you have paid down principal so that your loan-to-value ratio is below 80%, refinancing conventional or FHA loans can remove monthly mortgage insurance. ### What happens to my escrow account when I refinance? Your old escrow account will be closed and refunded to you by your original servicer within 30 to 45 days. You will need to set up a new escrow account with your new lender at closing. ## Related concepts - **Closing Costs** — The upfront fees paid to complete a mortgage transaction, including lender and third-party fees. - **Rate-and-Term** — A refinance that changes the interest rate, loan duration, or both, without withdrawing cash. - **LTV Ratio** — Loan-to-Value ratio: the loan amount divided by the appraised value of the property. ## Related guides - [Mortgage Amortization Schedule: Formula and Guide](https://dothecalculation.com/blog/finance/mortgage-amortization-schedule) — Learn how mortgage payments split between principal and interest, read an amortization schedule, and test loan terms with DTC calculators. - [Home Affordability: Budget, Formula, and Calculator](https://dothecalculation.com/blog/finance/home-affordability-analysis) — Estimate a home-price range from income, debt, down payment, rate, taxes, and insurance, then test costs the DTC model does not include. ## Related calculators - [AI Tokens & Cost Calculator](https://dothecalculation.com/calculators/ai-tokens-calculator) — Estimate tokens, simulate prompt caching savings, compare API costs across leading LLM models, and calculate multi-turn chat context growth. - [Mortgage Discount Points Break-Even Calculator](https://dothecalculation.com/calculators/mortgage-points-break-even-calculator) — Calculate the break-even timeline and total interest savings from paying upfront mortgage discount points to buy down your interest rate. - [Auto Loan Calculator](https://dothecalculation.com/calculators/auto-loan-calculator) — Estimate monthly car payments, total financing cost, and interest owed based on vehicle price, down payment, and loan term. - [Debt Payoff Calculator](https://dothecalculation.com/calculators/debt-payoff-calculator) — Compare debt snowball and avalanche payoff strategies and estimate exactly how long it will take to become completely debt free. - [Down Payment Calculator](https://dothecalculation.com/calculators/down-payment-calculator) — Plan the savings needed for a home down payment and see how it affects your loan amount and monthly mortgage payment size. - [Emergency Fund Calculator](https://dothecalculation.com/calculators/emergency-fund-calculator) — Estimate how much emergency savings you need based on monthly expenses to cover unexpected income loss or urgent expenses. --- _This tool is for educational purposes only. Mortgage rates, PMI premiums, property valuations, tax assessments, and insurance underwriting details depend on individual credit profiles, local government policies, and lender overlays. Always consult a licensed mortgage broker, financial planner, or tax professional before making property transactions._ --- _Source: [Do The Calculation](https://dothecalculation.com/calculators/refinance-calculator). Quote freely with attribution and a link to this page._