Home Calculators 401k Loan Calculator

401k Loan Calculator

Understand the true cost of borrowing from your 401k — monthly payments, lost investment growth, tax impact, and the full opportunity cost comparison.

401k Loan Details

IRS limit: lesser of $50,000 or 50% of your vested balance

Monthly Payment
--
per month
Total Repaid
--
principal + interest
Lost Investment Growth
--
at retirement
Retirement Balance Without Loan
--
With loan: --
True Total Cost
--
interest + opp. cost

401k Loan Key Facts

IRS Limit

$50k or 50% vested

Max Term

5 years (home: longer)

Double Taxation

Repaid with after-tax $

Default Risk

10% penalty + income tax