SECURE 2.0 Retirement Plan Tax Credits for Small Business 2026

Most small-business owners don't know this: starting a new 401(k) or SIMPLE IRA plan generates up to three stackable federal tax credits totaling $16,500 or more over five years. SECURE 2.0 (signed December 2022) created these credits specifically to offset the cost of offering retirement plans to employees — but claims remain surprisingly rare. Here's how each credit works, who qualifies, and how to calculate your total benefit.

Credit 1: §45E Startup Cost Credit

Before SECURE 2.0, the §45E startup credit reimbursed 50% of qualified plan startup costs. SECURE 2.0 §102 doubled it to 100% for employers with 50 or fewer employees — meaning you can recover plan setup costs dollar-for-dollar in the first three years.¹

What counts as qualified startup costs

• TPA (third-party administrator) setup and annual administration fees
• Recordkeeper and custodian setup charges
• Plan document preparation and legal fees
• Employee enrollment education meetings and materials

Ongoing costs in years four and beyond don't qualify. The credit applies only to the first three years of a new plan.

Annual credit cap

The credit equals 100% (≤50 employees) or 50% (51–100 employees) of actual qualified startup costs, subject to an annual maximum equal to the greater of: (a) $500, or (b) the lesser of $250 × the number of non-highly-compensated employees eligible to participate, or $5,000.¹ The highly compensated employee threshold for 2026 is $160,000 in the prior year.⁴

Employers with 51–100 employees receive the 50% rate, not 100%. Employers with more than 100 employees don't qualify.

Credit 2: §45T Auto-Enrollment Credit

An eligible employer (≤100 employees) that includes an eligible automatic contribution arrangement (EACA) in a qualified employer plan can claim $500 per year for three years — $1,500 total.²

For 2026, SECURE 2.0 §101 requires that 401(k) plans established after December 29, 2022 include automatic enrollment beginning in plan years starting on or after January 1, 2025. The required initial auto-enrollment deferral rate is 3–10%, escalating 1% per year to at least 10% (capped at 15%). Two exceptions to this mandate: (1) employers with 10 or fewer employees, and (2) businesses in existence fewer than 3 years. Even if you're exempt from the mandate, you can voluntarily add auto-enrollment and still claim the $45T credit.

The practical implication: if you're setting up a new 401(k) in 2026 and you have 11 or more employees, auto-enrollment is legally required — and you're automatically entitled to the $1,500 credit as a bonus for complying with the law. Solo 401(k) plans (one-participant plans) are exempt from the mandate but may still qualify for the credit voluntarily.

Credit 3: §45E Employer Contribution Credit

This is the largest credit for businesses with multiple employees. SECURE 2.0 §102 created an employer contribution credit equal to an applicable percentage of actual employer contributions made on behalf of eligible employees — those with annual compensation of $100,000 or less (not indexed).³ The per-employee credit is capped at $1,000 per year regardless of how much the employer actually contributes.

Five-year applicable percentage schedule

For employers with 51–100 employees, the applicable percentage is reduced by 2% for each employee above 50. At 75 employees, Year 1 drops to 50% (100% − 25 × 2%). At 100 employees, the credit phases out entirely.

Who counts as an eligible employee

The contribution credit applies to employees with annual compensation of $100,000 or less. The business owner — if they're a more-than-5% owner or earn above $160,000 — is typically a highly compensated employee and doesn't count toward the credit base. This means the more non-owner employees you have earning under $100,000, the larger your potential credit.

Prior plan exclusion

You cannot claim the employer contribution credit if you maintained a 401(k), profit-sharing plan, money purchase plan, or defined benefit plan covering substantially the same employees in any of the three preceding tax years. Critically: SEP IRAs (§408(k)) and SIMPLE IRAs (§408(p)) are excluded from this disqualifying-prior-plan rule. If you're switching from a SEP IRA or SIMPLE IRA to a safe harbor 401(k), you still qualify for the employer contribution credit on the new plan.

Worked example: consulting S-corp with 5 employees

An S-corp owner ($250K salary) sets up a safe harbor 401(k) in 2026 with 5 employees earning $55K–$85K. The employer makes a 3% non-elective safe harbor contribution — about $2,100 per employee on average — plus $500 per employee in additional discretionary match. Total employer contributions: ~$2,600/employee, which exceeds the $1,000 credit cap, so the full $1,000/employee is creditable each year.

In Years 1 and 2, the $6,750 credit nearly equals the employer's total out-of-pocket cost for the employer match itself (5 employees × $2,600 contribution = $13,000 gross, less deduction benefit). The plan is effectively free to offer for the first two years.

Estimate your SECURE 2.0 retirement plan credits

How to claim: Form 8881

All three credits are reported on Form 8881 (Credit for Small Employer Pension Plan Startup Costs and Auto-Enrollment), attached to your business tax return.² The form has three parts:

• Part I: Startup cost credit (§45E) — enter qualified plan setup and education costs
• Part II: Employer contribution credit (§45E(e)) — enter eligible employer contributions per qualifying employee
• Part III: Auto-enrollment credit (§45T) — check whether the plan includes an EACA

The total from Form 8881 flows to Form 3800 (General Business Credit), which reduces your regular tax liability dollar-for-dollar. If the credit exceeds your tax liability for the year, the unused portion carries back one year and forward 20 years.

Which plan types qualify

New plans eligible for all three credits include:

• Safe harbor 401(k) — most popular for businesses that want to maximize owner contributions
• Traditional 401(k) with or without profit sharing
• SEP IRA
• SIMPLE IRA
• Money purchase pension plan
• Solo 401(k) — eligible for startup credit and optionally auto-enrollment credit; employer contribution credit requires at least one non-owner employee

Cash balance and other defined benefit plans qualify for the startup cost credit but not the employer contribution credit.

Why these credits are underused

Georgetown's Center for Retirement Initiatives found that the vast majority of eligible small businesses never claim the §45E startup cost credit despite easily qualifying. The reasons typically cited: owners don't know the credit exists, their payroll provider doesn't flag it, or their CPA focuses on deductions rather than credits. The employer contribution credit — added by SECURE 2.0 in January 2023 — is even newer and less understood.

The dollar values are real and material. For a business with 10 employees, the combined startup and contribution credits could exceed $50,000 over five years — enough to make offering a 401(k) with a match effectively free for the first two years.

Interact with related pages

• Safe Harbor 401(k) for Small Business 2026 — the plan design that most commonly triggers all three SECURE 2.0 credits
• SIMPLE IRA for Small Business 2026 — lower-cost alternative, also qualifies for credits
• Profit Sharing Plan for Small Business — cross-tested allocation can add owner tax savings on top of the credits
• Solo 401(k) Rules and 2026 Limits — credits apply but are limited without employees

1. IRS: Retirement Plans Startup Costs Tax Credit — §45E credit rates (100% for ≤50 employees), annual maximum formula, and eligibility rules.
2. IRS: Instructions for Form 8881 (December 2025) — official instructions for all three SECURE 2.0 retirement credits, including §45T auto-enrollment rules and Form 3800 carryforward.
3. Baker Tilly: How SECURE 2.0 Employer Tax Credits Benefit Small Businesses — employer contribution credit applicable percentage schedule, $1,000/employee cap, and phase-out for 51–100 employee firms.
4. 26 U.S.C. § 45E (LII) — full statutory text of the small employer pension plan startup cost credit, including SECURE 2.0 amendments.

SECURE 2.0 credits unchanged by OBBBA (July 2025). Values verified against IRS Form 8881 Instructions (December 2025), IRS.gov retirement plan startup cost credit page, and IRC §§45E, 45T. HCE threshold $160,000 per IRS Rev. Proc. 2025-32. §45T auto-enrollment mandate exceptions per SECURE 2.0 §101 (≤10 employees and businesses in existence <3 years exempt). Employer contribution credit $100,000 compensation limit per IRC §45E(e)(2)(A), not indexed.