Mortgage Payoff Calculator - Extra Payment Savings & Early Payoff Date
You still owe about $245,000 at 6.5% with 25 years left—roughly $1,650/month on principal and interest alone. Put an extra $200 toward principal each month and you could finish about five years early and save tens of thousands in interest. Enter your balance, rate, remaining term, and extras below.
New Payoff Timeline
240 months
(5.0 years saved vs. base schedule)
- Base Monthly P&I
- $1,891
- Interest Saved
- $66,894
- Months Saved
- 60
- Total Interest
- $220,280
Accelerated Payoff Schedule (Annual Summary)
| Year | Payments | Interest | Principal | Ending balance |
|---|---|---|---|---|
| 1 | $25,087 | $17,991 | $7,096 | $272,904 |
| 2 | $25,087 | $17,516 | $7,571 | $265,333 |
| 3 | $25,087 | $17,009 | $8,078 | $257,255 |
| 4 | $25,087 | $16,468 | $8,619 | $248,636 |
| 5 | $25,087 | $15,891 | $9,196 | $239,439 |
| 6 | $25,087 | $15,275 | $9,812 | $229,627 |
| 7 | $25,087 | $14,617 | $10,469 | $219,157 |
| 8 | $25,087 | $13,916 | $11,171 | $207,987 |
| 9 | $25,087 | $13,168 | $11,919 | $196,068 |
| 10 | $25,087 | $12,370 | $12,717 | $183,351 |
Methodology and limitations
Last reviewed:
Methodology
Uses amortization math with optional extra monthly and lump-sum principal applied to balance.
Limitations
Does not model prepayment penalties, escrow changes, or recast effects.
Official sources
How to Use the Mortgage Payoff Calculator - Extra Payment Savings & Early Payoff Date
You still owe about $245,000 at 6.5% with 25 years left—roughly $1,650/month on principal and interest alone. Put an extra $200 toward principal each month and you could finish about five years early and save tens of thousands in interest. Enter your balance, rate, remaining term, and extras below.
Method used
Builds amortization with extra monthly and lump-sum principal to show payoff acceleration.
Practical example
Example: $280,000 balance, 6.5% rate, $200/month extra - see months and interest saved.
What this includes
- Shows payoff months, interest saved, and years saved.
- Supports lump-sum and recurring extras.
What this excludes
- Does not model recast or prepayment penalties.
Frequently Asked Questions
How do extra mortgage payments work?
Extra principal reduces the balance immediately, so later months accrue less interest and the loan ends sooner. On $245,000 at 6.5% with 25 years left, $200/month extra can save tens of thousands in interest and roughly five years. Your required payment usually stays the same unless you recast. Label extras as principal-only so the servicer applies them correctly.
Should I pay off my mortgage early or invest?
Early payoff guarantees a return equal to your mortgage rate (after tax effects). Investing may earn more long term but with risk. On a mid-6% balance with long remaining term—such as $245,000 at 6.5% where $200/month extra can materially cut interest—paying down principal often beats leaving cash idle. Quantify savings here, then compare after-tax returns and emergency-fund needs.
Does a lump sum payment reduce my monthly payment?
A lump sum applied to principal cuts total interest and shortens payoff time but does not automatically lower the required payment unless you request a mortgage recast. Example: paying principal early on an $180,000 / 6% / 22-year remaining loan accelerates the debt-free date; use the mortgage recast calculator if you want a lower monthly payment after a large paydown.
How much interest can I save with extra payments?
Savings rise with balance, rate, remaining term, and how early you add principal. On $180,000 at 6% with 22 years left, $150/month extra saves about $33,000 and ~49 months. On $280,000 at 6.5% with 25 years left, $200/month extra saves about $67,000 and ~60 months. Results assume extras apply to principal each month.
Is there a penalty for paying off a mortgage early?
Most modern U.S. mortgages have no prepayment penalty, but check your note. FHA, VA, and conventional agency loans typically allow unlimited extra principal. If a fee applies, subtract it from projected interest savings - a large penalty can erase gains on smaller remaining balances. This calculator does not model penalties or escrow changes.