Home › Calculators › Lump Sum Repayment Calculator
Lump Sum Repayment Calculator
What a bonus or windfall paid in saves
About this calculator
A lump sum cuts a chunk of principal immediately; if you keep the original repayment, the interest saved keeps rolling into principal and snowballs. That's why even a modest lump sum can save several times its size in interest.
Frequently asked
Lump sum or offset account?
The interest saving is almost identical. If you might need the money soon, an offset keeps it accessible; if you're certain you won't, paying it straight in works too.