Should You Raid Your 401(k) for a House? Here\'s the Math
With home prices at record highs and mortgage rates above 6.5%, more Americans are considering 401(k) loans to fund their down payments. In 2025, 401(k) loans hit a 5-year high as housing affordability plummeted. But is borrowing from your future self worth it?
About This Calculator: 401(k) Loan for Down Payment
Why: With home prices surging and down payment requirements creating barriers, 401(k) loans offer a path to homeownership. But the hidden costsโlost investment growth, job-loss risk, and double taxationโcan make this decision expensive. This calculator quantifies the true cost.
How: We calculate the opportunity cost of withdrawing from your 401(k) vs. the benefits of avoiding PMI and building home equity. The model factors in expected market returns, loan repayment terms, mortgage rates, and tax implications.
Quick Examples
Your Numbers
401(k) LOAN ANALYSIS
Down payment impact
401k Growth: With vs Without Loan
Cost Breakdown
5-Year Wealth Projection
Monthly Payment Impact
โ ๏ธFor educational and informational purposes only. Verify with a qualified professional.
๐ 401(k) Loan at a Glance
๐ฏ Key Takeaways
- 401(k) loans let you borrow from yourselfโinterest goes back into your account.
- You miss market growth on the borrowed amount (opportunity cost).
- Using a 401(k) loan to reach 20% down can eliminate PMI, saving $50โ200/month.
- Job loss triggers a 60โ90 day repayment window or taxable distribution + 10% penalty.
๐ก Did You Know?
How Does a 401(k) Loan Work?
1. Borrowing
You withdraw funds from your 401(k) up to 50% of vested balance or $50,000. The money is not taxed if repaid on time.
2. Repayment
You repay via payroll deduction over 1โ5 years (or up to 15 for primary residence). Interest goes back into your account.
3. Risk
If you leave your job, the balance may become due in 60โ90 days. Unpaid amounts are taxable and subject to a 10% penalty if under 59ยฝ.
๐ฏ Expert Tips
Consider if close to 20%
A small 401(k) loan to reach 20% down can eliminate PMI and save thousands over the life of the mortgage.
Job stability matters
If your job is unstable, a 401(k) loan adds riskโyou may have to repay in full within 60โ90 days if you leave.
Opportunity cost
Money out of the market misses growth. At 8% annual return, $50k out for 5 years costs ~$23k in lost growth.
Compare alternatives
Explore FHA (3.5% down), conventional with PMI, or waiting to save more before borrowing from retirement.
๐ 401(k) Loan vs Other Down Payment Sources
| Source | Pros | Cons |
|---|---|---|
| 401(k) Loan | No credit check, interest to self, fast access | Opportunity cost, job-loss risk, limits |
| Gift from Family | No repayment, no interest | Documentation required, may affect relationship |
| FHA (3.5% down) | Low down payment, easier qualification | PMI for life, upfront MIP |
| Conventional + PMI | Flexible down payment | PMI until 20% equity |
โ Frequently Asked Questions
What is a 401k loan?
Borrowing from your own retirement savings, typically up to 50% or $50,000 max. You repay with interest to your own account.
How much can I borrow from my 401k?
Up to 50% of vested balance or $50,000, whichever is less. Some plans may have a minimum of $1,000.
What happens if I leave my job with a 401k loan?
You typically must repay the full balance within 60-90 days or it becomes a taxable distribution with 10% penalty if under 59ยฝ.
Is 401k loan interest tax-deductible?
No, 401k loan interest is not tax-deductible, unlike mortgage interest. The interest is paid back to your own account.
Does a 401k loan affect my credit score?
No, 401k loans are not reported to credit bureaus and do not affect your credit score.
What is the typical 401k loan interest rate?
Usually prime rate + 1%, currently around 5-6%. The interest goes back into your 401k account.
โ ๏ธ Common Mistakes
๐ Industry Benchmarks
| Metric | Value | Source |
|---|---|---|
| Avg 401(k) Loan | $10,824 | Vanguard 2024 |
| 401(k) Loan Rate | ~5.5% | Prime + 1% |
| PMI Range | 0.5โ1% annual | Conventional |
| Repay Window (job loss) | 60โ90 days | Plan rules |
When to Consider a 401(k) Loan
โ Pros
- No credit check or approval
- Interest paid back to you
- Can eliminate PMI
- Fast access to funds
โ Cons
- Miss market growth (opportunity cost)
- Job loss = repayment crisis
- Double taxation if default
- Reduces retirement savings