Understanding Refinance Break-Even
The most important question in refinancing is: "Will I save enough money to justify the upfront costs?" This calculator answers that by finding your break-even month.
How Break-Even Works
When you refinance, you pay closing costs (typically $2,000–$5,000). After refinancing, you start saving money each month (lower payment). Break-even is the month when your cumulative monthly savings equal your closing costs.
Example:
- Closing costs: $3,600
- Monthly savings: $200
- Break-even: 3,600 ÷ 200 = 18 months
If you stay in the home for 18+ months, refinancing benefits you. If you sell before month 18, refinancing costs you money.
Rate Drop Scenarios
0.5% Rate Drop
A half-percent drop provides modest savings. Useful if you plan to stay 5+ years and want to lock in a fixed rate (especially if you're on an ARM). Break-even is typically 30+ months.
1.0% Rate Drop
A full percent drop is significant. Monthly savings are substantial, break-even is typically 12–24 months. This is the classic "worth it" scenario.
1.5%+ Rate Drop
A drop of 1.5% or more creates strong savings. Break-even is often 6–12 months. Refinancing is almost always financially beneficial.
Other Refinance Scenarios
Refinance to Shorten Your Loan Term
Instead of saving money monthly, you're building equity faster. Example:
- Current: 25 years left on 30-year mortgage at 7%
- Refi: New 15-year mortgage at 6%
- Result: Monthly payment rises, but you own the home 10 years sooner and pay significantly less interest
Refinance from ARM to Fixed Rate
If you're on an adjustable-rate mortgage (ARM) and rates are rising, refinancing to a fixed rate locks in your payment for 15 or 30 years. Even if the fixed rate is slightly higher than your current ARM payment, the predictability and peace of mind can be worth it.
Cash-Out Refinance
You refinance for more than you owe and take the difference in cash. Example: owe $300K, refinance for $400K, get $100K in cash. The larger loan means higher monthly payments, but you access your home equity for renovations, debt consolidation, or other expenses.
Factors That Affect Your Refinance Decision
Credit Score
A higher credit score (760+) gets the best rates. If your score has improved since you got your original mortgage, you might qualify for a significantly lower rate. Aim for 700+ before refinancing.
Loan-to-Value (LTV)
LTV is your loan amount divided by your home's current value. The lower your LTV, the better your rates. If your home has appreciated or you've paid down principal, your LTV improves.
Employment & Income
Lenders verify income and employment. Stable income (same employer for 2+ years) helps approval. Self-employed borrowers may need extra documentation.
Debt-to-Income Ratio
Lenders check your total monthly debt payments against income. If your income has risen or debt has fallen, your DTI improves, helping refinance approval.
When NOT to Refinance
- Planning to sell soon: If you'll sell before break-even, refinancing costs money. Skip it.
- Rates just slightly lower: A 0.25% drop typically doesn't justify refinancing costs unless break-even is very short (under 6 months).
- Bad credit: If your credit score is below 650, you won't qualify for rates better than your current rate.
- Already near the end of your loan: If you have 3–5 years left on a 30-year mortgage, refinancing resets the clock. You pay more interest overall.
- Unstable income: If you're self-employed or changing jobs, wait until your income is more stable.
How to Get Started
1. Check your current mortgage details: Interest rate, remaining balance, years left, monthly payment.
2. Get rate quotes: Contact 3+ lenders (banks, credit unions, mortgage brokers) for current rates and closing cost estimates.
3. Use this calculator: Plug in your numbers to find break-even and see monthly/interest savings.
4. Compare offers: Look at total cost (payment + closing costs) over the entire loan term, not just the monthly payment.
5. Decide: If break-even happens soon and you plan to stay, refinance. If break-even is far off, wait for better rates.