401k Loan Repayment Schedule: Terms, Timeline, and Tips

401k Expert

Quick Answer: 401k Loan Repayment

401k loans must typically be repaid within 5 years through automatic payroll deductions. The minimum repayment is quarterly, with payments covering both principal and interest (paid to your account). For a $20,000 loan at 8.5%, expect monthly payments of about $410 for 60 months. If you leave your job, the full balance may be due within 60 days.

The 5-Year Repayment Rule

Under IRS regulations, most 401k loans must be repaid within 5 years (60 months) from the date of the loan. This is a firm deadline — not a suggestion. The only exception is for loans used to purchase a primary residence, which may qualify for a longer repayment period (up to 15 years, if your plan allows it).

How Repayment Works

Payroll Deduction Method

Most 401k loans are repaid through automatic payroll deductions. After you take the loan:

  1. Your plan administrator calculates your required payment amount
  2. The payment is deducted from each paycheck (typically)
  3. Payments continue until the loan is fully repaid
  4. Both principal and interest go back into your 401k account

Payment Frequency

  • Most common: Per-paycheck deductions (bi-weekly or semi-monthly)
  • Minimum required: At least quarterly payments
  • Some plans allow: Additional lump-sum payments

Full Amortization Schedule: $20,000 at 8.5% Over 5 Years

Here’s a month-by-month breakdown of a typical 401k loan repayment:

MonthPaymentPrincipalInterestBalance
1$410$268$142$19,732
6$410$281$129$18,244
12$410$298$112$16,542
18$410$316$94$14,733
24$410$336$74$12,807
30$410$357$53$10,755
36$410$379$31$8,567
42$410$402$8$6,234
48$410$406$4$3,765
54$410$412$(2)$1,245
60$410$1,245$0$0

Total payments: $24,627 Total interest paid to your account: $4,627

Use our comparison calculator to see personalized repayment schedules.

Repayment Schedules by Loan Amount

Loan AmountRateMonthly PaymentTotal Interest (5yr)Total Paid
$5,0008.5%$103$1,157$6,157
$10,0008.5%$205$2,313$12,313
$15,0008.5%$308$3,470$18,470
$20,0008.5%$410$4,627$24,627
$30,0008.5%$616$6,940$36,940
$50,0008.5%$1,026$11,567$61,567

What Happens If You Miss a Payment

Missing a 401k loan payment has serious consequences:

The Cure Period

If you miss a payment, most plans offer a cure period (typically until the last day of the following calendar quarter) to bring the loan current. During this time, you can make up missed payments.

Loan Default

If you fail to cure the missed payment, the loan goes into default and the entire outstanding balance is treated as a taxable distribution:

  • Income taxes: Due on the full remaining balance
  • 10% penalty: Applies if you’re under 59½
  • No further repayment: The loan is converted to a withdrawal

For more details, read our 401k loan default consequences guide.

Special Rule: Job Change

Leaving your employer triggers a critical repayment deadline. Under current rules:

  1. Traditional rule: Loan balance due within 60 days of separation
  2. SECURE 2.0 Act change (2024+): You may have until your tax filing deadline (including extensions) to repay or roll over the loan

If you can’t repay, the balance becomes a deemed distribution. Read more in our 401k loan after leaving job guide.

Tips for Managing Your 401k Loan Repayment

1. Set Up Automatic Payments

Never miss a payment by relying on automatic payroll deductions. If you need to change the amount, contact your plan administrator.

2. Consider Paying More Than Required

Extra payments reduce your total interest and get your money back into the market sooner. Most plans allow additional payments without penalty.

3. Don’t Reduce Your 401k Contributions

Some people reduce or stop their regular 401k contributions while repaying a loan. This is a double hit — you miss both the contributions and any employer match.

4. Have a Backup Plan

If you might change jobs, have a plan for repaying the loan early or have sufficient savings to cover the balance.

5. Track Your Balance

Monitor your loan balance regularly to stay on track and spot any issues early.

Key Takeaways

  • 401k loans must be repaid within 5 years (up to 15 years for home purchase loans)
  • Repayments are typically made through automatic payroll deductions
  • A $20,000 loan at 8.5% requires monthly payments of about $410 over 60 months
  • Missing payments triggers a cure period, then default — which converts the loan to a taxable distribution
  • Leaving your job may require full repayment within 60 days (or by tax filing deadline under SECURE 2.0)
  • Paying extra reduces total interest and gets your money back into the market faster

Frequently Asked Questions

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