EXPLAIN MY 401(k)

Your retirement plan.
A little less mysterious.

See what’s going in, what you own, and what you’re paying. Turn the numbers in your plan into a clearer next step.

Private by design. No account, no tracking, no saved entries. Your numbers stay in this tab.

Start with your 401(k) statement

ON YOUR DEVICE

Read the investment page from your statement, then choose the holdings and current balances to use. You can also enter them yourself. Match rules, contribution rates, vesting and plan fees are not imported.

JPG, PNG, WebP or PDF · up to 10 MB · PDFs up to 20 pages · English printed text. A sharp, upright photo works best. No files, images or extracted text are sent to a server.

No statement handy? Download a fictional sample PDF or sample photo to try the reader.

01

What’s going in?

Have your statement and plan details nearby. Enter what you know, or try a fictional example. You can also import investment balances from a photo or PDF above.

Leave both pay and contribution blank to explore only your investments. Annualized illustrations assume steady eligible pay and contributions; IRS/plan limits, eligibility, pay-period matching, true-ups and other employer deposits are not modeled.

What does “vested” mean for my employer money?

Vested means yours to keep. Your employee contributions are fully vested. Employer money can follow different schedules. Optional: use one employer contribution source and its current vested percentage from your statement.

02

What do you own?

Add the current balance of each investment once. Use the fund’s annual expense ratio from its fact sheet or your plan’s fee disclosure. Leave unknown fees blank; zero means a confirmed 0% fee.

Use current dollar balances, not future contribution percentages. Skip outstanding loans. Target-date funds stay grouped because their underlying stock/bond mix varies.

Other plan fees (optional)

Add ongoing fees charged to your account separately from fund expenses. Enter 0 only if you’ve confirmed no charge. Avoid counting a fee twice.

You can explore investments alone or contributions alone. Nothing is sent to your plan provider.

THE PLAIN-ENGLISH GUIDE

Start with the language.

Is my 401(k) an investment?

Your 401(k) is a workplace retirement account. The funds inside it are the investments. A contribution election tells payroll what to add; an investment election tells the plan where to put that money. Existing balances and new-contribution allocations can differ.

Traditional vs. Roth: what changes?

Traditional elective contributions generally reduce current federal taxable income; withdrawals are generally taxable. Roth contributions use after-tax income, and qualified withdrawals are tax-free. They share an employee contribution limit. Tax treatment and investment choice are separate decisions.

What is an expense ratio?

An ongoing annual fund cost expressed as a percentage of assets. At an unchanged $10,000 balance, a 0.50% ratio is about $50 a year. These expenses are generally reflected in fund returns, rather than appearing as a separate bill. Plan administration or service fees may be additional.

How does the employer match work?

A match depends on how much you contribute and your plan’s formula. “50% of the first 6%” means the employer adds up to 3% of eligible pay when you contribute 6%. Matching can be calculated each paycheck. A year-end true-up may reconcile differences, but only if the plan provides one. Confirm the rules before changing contribution timing.

What is a target-date fund?

A fund holding a mix of investments that generally changes over time toward and sometimes beyond a target retirement year. Funds with the same year can have different risks and fees. They are not guaranteed. Mixing one with other funds changes your combined allocation; this tool does not look through to the underlying holdings.

Am I on track for retirement?

This snapshot cannot answer that on its own. Retirement readiness depends on future spending, retirement age, other savings, Social Security, taxes and uncertain returns. Use this tool to understand your plan first, then build a broader retirement plan. A high balance, full match or low fee alone does not establish readiness.

How the estimates work

Contribution illustrations use eligible pay × contribution rate. Match tiers apply sequentially to the entered rate. Annual fund-cost estimates use each current balance × expense ratio, before market changes. Fee estimates exclude unknown amounts, transaction/service charges and costs not entered. No tax limits or investment returns are modeled, and no fund is recommended.

Educational information, not individualized financial, tax or legal advice. Confirm plan-specific terms with your administrator.

Sources · Reviewed October 18, 2026