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Seller Financing Amortization Calculator
Build a full month-by-month amortization schedule for a seller-financed note. Handles common structures: 30-year amortization with short balloon, optional principal prepayments, and balance tracking.
Monthly payment
$1,818
Balloon due
$238,769
Interest to balloon
$131,477
| Month | Payment | Principal | Interest | Balance |
|---|---|---|---|---|
| 1 | $1,817.96 | $192.96 | $1,625.00 | $259,807 |
| 2 | $1,817.96 | $194.16 | $1,623.79 | $259,613 |
| 3 | $1,817.96 | $195.38 | $1,622.58 | $259,418 |
| 4 | $1,817.96 | $196.60 | $1,621.36 | $259,221 |
| 5 | $1,817.96 | $197.83 | $1,620.13 | $259,023 |
| 6 | $1,817.96 | $199.06 | $1,618.89 | $258,824 |
| 7 | $1,817.96 | $200.31 | $1,617.65 | $258,624 |
| 8 | $1,817.96 | $201.56 | $1,616.40 | $258,422 |
| 9 | $1,817.96 | $202.82 | $1,615.14 | $258,219 |
| 10 | $1,817.96 | $204.09 | $1,613.87 | $258,015 |
| 11 | $1,817.96 | $205.36 | $1,612.60 | $257,810 |
| 12 | $1,817.96 | $206.65 | $1,611.31 | $257,603 |
| 24 | $1,817.96 | $222.69 | $1,595.27 | $255,020 |
| 36 | $1,817.96 | $239.98 | $1,577.98 | $252,237 |
| 48 | $1,817.96 | $258.61 | $1,559.35 | $249,238 |
| 60 | $1,817.96 | $278.68 | $1,539.28 | $246,005 |
| 72 | $1,817.96 | $300.32 | $1,517.64 | $242,522 |
| 84 | $1,817.96 | $323.63 | $1,494.33 | $238,769 |
How to Use
- Enter note principal, rate, amortization years (typically 30), and balloon years.
- Add optional extra monthly principal payments.
- Review monthly schedule and balloon amount due.
Frequently Asked Questions
Why 30-year amort with a short balloon?
Keeps the buyer's monthly payment affordable (30-year amortization) while giving the seller a defined exit (balloon). Common structures: 30/5, 30/7, 30/10 — with the number after the slash being the balloon year.
Can the buyer prepay without penalty?
Depends on note language. Default seller-carry notes often allow prepayment without penalty. Some notes add prepayment penalties (common in commercial seller carry) — always negotiate and review the note itself.
What if the buyer can't pay the balloon?
Three options: the seller extends the balloon (often for a fee or rate adjustment), the buyer refinances into a bank mortgage, or the seller forecloses. The prospect of refinance is usually built into buyer qualification.
Related Calculators
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Amortization Calculator
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