401(k) match, Roth vs Traditional and nest-egg math
Estimate employer match capture, compare Roth vs Traditional frames, project compound growth or years to a target, and ballpark Roth conversion tax. Free, private, no sign-up.
Tools
401(k) match estimator
Estimate annual 401(k) deferrals and employer match from salary, deferral %, match formula and IRS elective deferral ceiling. Private, educational only.
Roth vs Traditional
Compare Roth and Traditional outcomes under equal-contribution and equal-take-home-cost frames using rates you supply. Educational only.
Compound growth / nest egg
Project a future balance from starting amount, annual contributions and a constant return, or estimate years to hit a target nest egg.
Roth conversion tax ballpark
Estimate tax on a Roth conversion using federal, state and optional NIIT rates you supply, plus a simple growth comparison. Not tax advice.
Popular guides
Understanding 401(k) Employer Match
Match formulas, vesting, true-up and how to avoid leaving employer dollars unused.
Elective Deferral Limits Explained
How IRS elective deferral ceilings work conceptually, catch-up ideas, and why you must verify current notices.
Roth vs Traditional: A Decision Framework
Equal-contribution vs equal-take-home comparisons, rate path uncertainty and account-location ideas.
Roth Conversion Tax Basics
Taxable income recognition, bracket awareness, IRMAA caution and why pro-rata rules matter.
Year-End Contribution Windows
Payroll cutoffs, IRA deadlines versus plan deferrals, and last-minute match capture checks.
Compound Growth and Fee Drag
How constant-return models teach compounding and why subtracting fees from assumed returns is a useful stress habit.
How we work
Calculators run locally on figures you type. Guides cite IRS and Investor.gov materials. We are not a broker, RIA or tax preparer. Read about NestEgg and our affiliate disclosure.