Mortgage Refinance Break-Even
Calculate refinance break-even point and savings. Enter values for instant results with step-by-step formulas.
Formula
Break-Even = Closing Costs / Monthly Savings; ROI = (Savings × Months - Costs) / Costs × 100
Worked Examples
Example 1: Clear Refinance Win
Problem:Current: $300K balance, 6.5%, 25 years left. New: 5.0%, 30 years. Closing: $4,500. Plan to stay 8 years.
Solution:Current payment:\n$300K @ 6.5% for 25yr = $2,021/month\n\nNew payment:\n$300K @ 5.0% for 30yr = $1,610/month\n\nMonthly savings: $411\n\nBreak-even:\n$4,500 / $411 = 10.9 months (11 months)\n\nStay 8 years:\nTotal savings: $411 × 96mo - $4,500 = $39,456 - $4,500 = $34,956\nROI: ($34,956 / $4,500) × 100 = 777%\n\nNote: Term extended 5 years (25→30)\nLong-term interest increases, but 8-year savings are substantial.\n\nRecommendation: Refinance strongly recommended.
Result:Break-even: 11 months | 8-year savings: $35K | 777% ROI | REFINANCE
Example 2: Marginal Case
Problem:Current: $200K, 5.5%, 20 years left. New: 5.0%, 30 years. Closing: $5,000. Plan to stay 3 years.
Solution:Current payment:\n$200K @ 5.5% for 20yr = $1,376/month\n\nNew payment:\n$200K @ 5.0% for 30yr = $1,074/month\n\nMonthly savings: $302\n\nBreak-even:\n$5,000 / $302 = 16.6 months (1.4 years)\n\nStay 3 years:\nTotal savings: $302 × 36mo - $5,000 = $10,872 - $5,000 = $5,872\n\nBUT term extends 10 years (20→30):\nTotal interest comparison:\nCurrent path: $130K remaining\nNew path: $187K total\n\nDifference: $57K more in long-term interest\n\nFor 3-year stay: Savings = $5,872\nBut you've committed to $57K more if you keep loan full term.\n\nRecommendation: Marginal - only if certain to move in 3-5 years.
Result:Break-even: 1.4 years | 3-year savings: $5.9K | BUT $57K more long-term | MARGINAL
Example 3: Do Not Refinance
Problem:Current: $250K, 4.0%, 15 years left. New: 3.75%, 15 years. Closing: $6,000. Plan to stay 2 years.
Solution:Current payment:\n$250K @ 4.0% for 15yr = $1,849/month\n\nNew payment:\n$250K @ 3.75% for 15yr = $1,817/month\n\nMonthly savings: $32 (tiny!)\n\nBreak-even:\n$6,000 / $32 = 187 months = 15.6 years\n\nProblem: Break-even exceeds loan term!\n\nStay 2 years:\nSavings: $32 × 24 = $768\nCosts: $6,000\nNet: -$5,232 (LOSS)\n\nSmall rate reduction (0.25%) doesn't justify costs.\n\nRecommendation: Do NOT refinance.\nWaste of $5,000+ for minimal benefit.
Result:Break-even: 15.6 YEARS | 2-year savings: -$5,232 LOSS | DO NOT REFINANCE
Frequently Asked Questions
When should I refinance my mortgage?
Rule of thumb: refinance when you can reduce rate by 0.75-1%+ and plan to stay in home beyond break-even point. Account for closing costs ($3,000-$6,000 typically). In falling rate environments, refinancing from 7% to 5% can save hundreds monthly and tens of thousands over loan life.
What are typical refinance closing costs?
Closing costs run 2-5% of loan amount: appraisal ($500-800), title insurance ($1,000-2,000), origination fees (0.5-1% of loan), credit report, recording fees, and prepaid items. On $300K loan, expect $3,000-$6,000. Some lenders offer no-closing-cost refinances by building fees into higher rate.
How do I calculate break-even point?
Break-even = Closing Costs ÷ Monthly Savings. If refinance costs $4,500 and saves $200/month, break-even is 22.5 months. Stay in home beyond this and you profit. Move before break-even and you lost money. Factor in: property appreciation, lifestyle flexibility, and opportunity cost of capital.
What is a cash-out refinance?
Cash-out refinance borrows more than you owe, giving you cash equal to the difference. Example: owe $200K, refinance for $250K, receive $50K cash. Uses: home improvements, debt consolidation, investments. Risk: increases debt, resets loan term, may have higher rates than rate-term refinance.