Pragmatic Mortgage | We're the mortgage company that doesn't want you to have a mortgage.

Mortgage balance

Outstanding principal or refinance amount.

Nominal rate (%)

Amortization (years)

Term length (years)

Payment frequency

Match how often payments are made.

Need to override compounding? Switch to Pro mode for full control.

$500,000 amortized over 25 years at 5.00%.

Apply lump-sum payments (bonuses, inheritances, tax refunds) to cut the balance faster.

No prepayments yet—add one to see how a single lump sum shifts the payoff timeline.

Recurring payment top-up

Extra amount added to each payment once the start point is reached.

Start after payment #

Set to 1 to apply immediately.

Prepayment Impact Calculator