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Free mortgage forbearance cost calculator to compare remaining interest if you stay on schedule versus a simplified case where payments pause and interest accrues, then you resume level payments for the rest of your original term. Pair it with our mortgage recast and mortgage comparison tools when your servicer finalizes options.
Last updated: April 18, 2026
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Real servicer options vary; this model assumes you return to a level payment for the months left on your original schedule after forbearance.
Scheduled P&I (today)
$2,160.66
Deferred payments (skipped)
$12,963.98
Balance after forbearance
$330,541.85
Interest — no forbearance
$328,198.87
Interest — with forbearance
$341,534.42
Estimated extra interest
$13,335.55
New P&I after resume
$2,250.12
+$89.45 vs. old payment
Months left after forbearance
294
Important
Forbearance programs differ: some defer payments without capitalization, others add a lump sum or extend the term. This calculator uses a simplified level-payment model for illustration only and is not legal or tax advice.
Liquidity relief
Deferred P&I
Helps you see how much monthly obligation was paused in the model.
Growing principal
Balance after pause
Optional setting reflects unpaid interest increasing what you owe before payments restart.
Cost signal
Interest difference
Uses a fixed-rate amortization snapshot for the rest of the term.
Budgeting
New monthly P&I
Shown for the simplified “same remaining term after forbearance” case.
Disclaimer
Illustrative
FHA, VA, USDA, and conventional loans may treat deferment and repayment differently.
Best fit
Fixed P&I loans
Adjustable-rate loans may need rate change assumptions not modeled here.
Default: $320,000 balance, 6.5% annual, 300 months remaining, 6 months forbearance with accrual.
Estimated extra interest
$13,336
Deferred payments (model)
$12,964
We first compute your scheduled principal-and-interest payment from the balance, rate, and remaining months. That sets a baseline for total remaining interest if you pay every month on time. Then we grow the balance during forbearance when accrual is on—each month without a payment, interest is applied so the balance compounds monthly at your note rate. After the pause, we amortize the new balance over the months still left on your original schedule and compare total interest to the no-forbearance case.
Monthly P&I = amortization(balance, rate, remaining months)Balance after k months with accrual ≈ balance × (1 + i)ᵏExtra interest ≈ interest(with forbearance path) − interest(on-time path)Here i is the monthly interest rate (annual rate ÷ 12). Your servicer may use different rounding or day-count rules.
Snapshot: balance, skipped months, and resumed amortization
Some borrowers receive a payment deferral repaid as a lump sum at the end of the loan; others modify the term; others capitalize interest once. This tool cannot know your letter from the servicer, so treat numbers as directional only.
Extra interest appears because you pay interest on a larger balance after the pause than you would have if principal had been paid down on schedule. Your servicer’s workout could produce a different timeline or payment.
Enter your actual balance, rate, and months in the calculator—this card is narrative only.
Share it with homeowners evaluating payment relief options
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