Early Mortgage Payoff

For a mortgage you already have. It answers the question from either direction: if I pay more, when am I done, or if I want to be done by then, what do I need to pay.

Two modes

The calculator opens with a Duration / Payment switch. Which one you want depends on which side of the question you're standing on.

Both modes share the same loan details:

›Loan Amount: the original loan (optional)
›Amount Still Owed: your current balance
›Interest Rate
›Term: the original term in years (optional)
›Left: years remaining on the current schedule

Each mode keeps its own answer, so you can switch back and forth to compare without recalculating.

Duration mode

You supply the payment, and it tells you the timeline.

›Monthly Payment: what you pay now
›Additional: what you'd add each month

Use this when you have a specific amount of spare money and want to know what it buys you.

If the payment you enter is already higher than the mortgage requires, a note tells you so, for example This mortgage only needs $1,800. You are already paying $200 more. Tap Split to move the difference into Additional, so the answer shows what your existing overpayment is doing.

You get the New loan duration, with the month you'd finish and the month you would have finished otherwise. Beneath it are Today (years left now), Sooner by, and Extra. Two breakdowns follow. The first shows your monthly payment, the additional payment, and the new total. The second shows Interest without the extra, Interest with it, and Interest saved.

If the payment doesn't even cover the interest, the result says This payment never clears the loan and shows the minimum it needs, instead of a date.

Payment mode

You supply the target, and it tells you the payment.

›Desired Term: how many years you want to take
›Monthly Payment: what you pay now

You get the New monthly payment required, with the month you'd finish. A breakdown compares Payment today and Total cost today against New payment and New total cost.

Use this when the goal is fixed. Paying it off before retirement, before a child starts university, before you plan to move.

Why extra payments do so much here

Early in a mortgage, most of each payment is interest. Anything extra goes entirely against principal, and principal is what all future interest is calculated on.

So an extra payment doesn't just remove itself from the balance. It removes every future interest charge that balance would have generated. On a thirty-year loan the effect compounds hard, and modest extra payments routinely cut years off the term.

The effect is strongest early. The same extra payment made in year two is worth far more than in year twenty.

Whether you should

Running the numbers is the easy part. The judgment is harder, and this calculator can't make it for you.

Pay the mortgage down early when it's your only significant debt, you have an emergency fund, and the certainty is worth something to you.

Do something else first when you're carrying higher-interest debt. A mortgage is typically among the cheapest money you'll ever borrow. Credit card debt at 22% should be cleared long before you accelerate a mortgage at 6%. The arithmetic isn't close.

Be careful about putting every spare dollar into the house. Money in a mortgage is hard to get back out. An emergency fund you can actually reach is worth more than a slightly earlier payoff date.

Check it against your plan

If you're carrying other debts, build them into the Budget Builder and look at what it recommends. The algorithm sequences across everything you owe, and it may well put the mortgage last.

For a comparison across several debts, the Debt Payoff Calculator will show you the same extra payment applied elsewhere.

Note

This calculator doesn't have an Add To Budget button. A mortgage belongs in Housing rather than as a new debt. Enter the revised payment there and rebuild.