Interactive demo
401(k) plan design calculator
Model a 401(k) plan with 100 sample employees, compare up to four plan designs side by side, and see estimated changes to employer cost, employee participation, contributions, vesting, forfeitures, and explicitly informal compliance screens. No account is required.
What you can model
- Tiered matching, safe harbor contributions, nonelective contributions, and profit sharing
- Eligibility, vesting schedules, employee terminations, and estimated forfeitures
- Pre-tax, Roth, catch-up, and after-tax contribution settings
- Side-by-side plan comparison at the plan and employee level
- Informal ADP-style, ACP-style, coverage-style, and top-heavy screens
Browser-local census calculations
The demo lets you modify the sample or load your own census. Employee census data stays in your browser and is never uploaded to Retira.app.