Prepayment penalties are deliberately opaque. This calculator estimates your cost—so you can decide if refinancing or selling makes financial sense.
Your penalty changes as Treasury rates move. Slide to see the impact.
The lender is entitled to the interest income they would have earned. With 7.0 years remaining at 1.25% above current Treasuries, they're owed the present value of that spread.
Key insight: When rates rise, your penalty drops (and vice versa).
If you refinance at 6.75% (current market):
Compensates the lender for lost interest income. When rates drop, your penalty rises (they're losing more). When rates rise, your penalty shrinks (they can relend at higher rates).
Instead of prepaying, you substitute Treasury securities that match your remaining payments. The loan stays on the lender's books, but you're released from it. More complex and expensive than yield maintenance.
Simple and predictable: a fixed percentage that decreases each year. Common on shorter-term loans. Doesn't adjust based on interest rates, so it can be more or less expensive than yield maintenance depending on the market.
Most agency loans (Fannie Mae, Freddie Mac) include a 90-day open window before maturity where you can prepay without penalty. Some loans offer 120 or 180 days. This is your chance to refinance, sell, or pay off debt-free.
Estimates only. Actual prepayment penalties depend on your specific loan documents. Yield maintenance and defeasance calculations vary by lender and may include additional fees. Always verify with your servicer before making decisions.