Retirement
401(k) Paycheck Impact Calculator
A 401(k) contribution usually costs less in take-home pay than the contribution amount because of tax savings. Estimate the paycheck tradeoff.
The contribution is $5,100 per year, but simplified tax savings reduce paycheck impact to about $153 per paycheck.
Breakdown
| Annual employee contribution | $5,100 |
|---|---|
| Estimated annual tax savings | $1,122 |
| Estimated employer match | $3,400 |
| Projected value (25 years at 6%) | $490,871 |
- This models traditional pre-tax contributions only.
- Confirm IRS limits, vesting, and plan rules.
Estimate only, not tax, legal, financial, or medical advice. Always confirm important decisions with official sources or a qualified professional.
Copyable inputs
A small paycheck reduction can become a larger long-term retirement contribution when tax savings and match apply.
Estimated paycheck impact quick reference
Use these reference points before entering your own numbers. The calculator above gives a more useful estimate for your exact situation.
| Item | Rule of thumb | Note |
|---|---|---|
| Traditional 401(k) | Pre-tax | Can reduce current taxable income |
| Employer match | Free money if vested | Rules vary by plan |
| Paycheck impact | Contribution minus tax savings | Simplified estimate |
Plan limits, vesting, Roth treatment, and investment returns vary. Confirm with plan documents.
Before You Decide
- Check match formula and vesting.
- Know traditional vs Roth treatment.
- Do not contribute money needed for immediate bills.
- Use official plan documents for limits and rules.
Next three steps
- Test contribution up to full employer match.
- Compare paycheck impact with rent and debt.
- Review annual IRS contribution limits.
Estimate only, not tax, legal, financial, or medical advice. Always confirm important decisions with official sources or a qualified professional.
Frequently Asked Questions
- Will 401(k) reduce my paycheck dollar-for-dollar?
- Traditional contributions often reduce taxable income, so take-home pay may fall by less than the contribution.
- Does this include Roth 401(k)?
- No. This calculator focuses on traditional pre-tax contributions.
- Should I always contribute to the match?
- It is often valuable, but personal cash flow and debt needs matter.