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Calculator · The real formula, not the headline number

SECURE 2.0 tax credit calculator

Three numbers in, the actual §45E arithmetic out — including the $250 × NHCE cap that most pages skip, which is usually the term that binds.

The short answer

Enter your employee count, your non-highly-compensated employee count, and your estimated annual plan cost. For employers with 50 or fewer employees the §45E credit is the lesser of your cost and the cap — the greater of $500 or the lesser of $250 × NHCEs or $5,000 — plus $500 a year under §45T with auto-enrollment. The result is almost always below the flat $5,000 you read elsewhere.

About this calculator. This tool is an illustration, not advice, and not a recommendation to buy or sell any security. Results are estimates based only on the figures you enter and the assumptions shown on screen. It does not account for your full financial picture, investment returns, market conditions, plan-specific fees, or your tax situation. Actual costs, contribution limits, and credits vary. Confirm your obligations with CalSavers at (855) 650-6916 and your CPA before making a decision. Aduna Capital LLC is not affiliated with, endorsed by, or sponsored by CalSavers, the California State Treasurer's Office, CalPERS, CalSTRS, or any other retirement system, employer or school district named on this page.

Your plan

Employees who earned at least $5,000 last year. 50 or fewer gets the 100% rate.
This drives the cap: $250 × NHCEs, floor $500, ceiling $5,000.
Setup, administration and employee education. The credit can never exceed this.

Estimated credits

§45E cap — greater of $500 or lesser of $250 × NHCEs or $5,000
§45E startup credit, per year
§45T auto-enrollment credit, per year
Total credits, per year
Three-year total
Your plan cost left uncovered, per year

Assumptions used

  • §45E: employers with 50 or fewer employees claim 100% of qualified startup costs; 51–100 employees claim 50%. Both are capped at the greater of $500 or the lesser of $250 × NHCEs or $5,000, for three years. Over 100 employees: no §45E credit.
  • §45T: $500 per year for three years, for plans with an eligible automatic contribution arrangement, employers with 100 or fewer employees. This calculator assumes your plan includes auto-enrollment.
  • The three-year total assumes your plan cost and NHCE count stay constant — in reality both move.
  • The employer contribution credit (up to $1,000 per employee) is excluded here because it depends on contribution design. How it works →
  • No double-dipping: expenses used for the credit cannot also be deducted. Your CPA decides which is worth more on your return.

Common questions

What is the § 45E startup credit?

100% of qualified startup costs for employers with 50 or fewer employees, 50% for 51 to 100, capped at the greater of $500 or $250 per non-highly-compensated employee, up to $5,000 a year, for three years.

What is the § 45T credit?

A flat $500 a year for three years for adding an eligible automatic-enrolment feature, available to employers with 100 or fewer employees.

Why does the calculator clamp NHCEs to headcount?

Because non-highly-compensated employees are a subset of all employees; the cap is $250 per NHCE, so the count cannot exceed the total.

Want your credit number checked before your CPA sees it?

We run the formula on your real census and plan quotes, and show the arithmetic line by line.