Best Payroll Service for an S-Corp Owner in 2026
Scoped to the one-person S-Corp. Which service handles the >2% shareholder health insurance W-2 add-back correctly? Which is actually affordable for one employee?
We earn no commission from the payroll services listed here, and the only outbound links on this page point to our own pricing-reference pages. Rankings reflect actual pricing and features for the one-person S-Corp use case, nothing else.
Why Payroll Provider Choice Matters for S-Corp Owners
For a solo S-Corp owner, the payroll service must: (1) handle state employer registration, (2) file Form 941 quarterly and W-2/W-3 annually, (3) correctly add health insurance premiums to W-2 Box 1 wages at year-end for >2% shareholder health insurance (IRC Section 1372), and (4) be affordable for literally one employee.
Most major payroll providers handle items 1-2 correctly. Item 3 (the >2% shareholder health insurance W-2 add-back) is where errors occur with some providers that do not specifically support S-Corp owner payroll. This is a compliance error that creates a Form 1099/W-2 mismatch and can trigger IRS notices.
Comparison Table (One-Employee S-Corp, April 2026)
| Service | Monthly Cost (1 EE) | W-2/W-3 | State Filings | >2% Health W-2 | Notes |
|---|---|---|---|---|---|
| Gusto Simple | $49/mo + $6/ee | Yes | Yes (most states) | Yes (automatic) | Best for solo S-Corp. Handles S-Corp shareholder health insurance automatically. Strong integrations. |
| OnPay | $49/mo + $6/ee | Yes | Yes (all 50) | Yes | Flat pricing, all states included. Good S-Corp support. Similar to Gusto in functionality. |
| Patriot Payroll | $37/mo + $5/ee | Yes (add-on) | Add-on | Manual setup | Cheapest option but state filings cost extra. Good for budget-conscious owners comfortable with minor manual steps. |
| ADP Run | ~$60-$80/mo | Yes | Yes | Yes | More expensive for 1 person. Better for businesses expecting to grow. Enterprise features overkill for solo. |
| Paychex Flex | ~$60-$100/mo | Yes | Yes | Yes | Full-service, expensive for solo. Better for 5+ employees. See paychexpricing.com for exact quotes. |
| Square Payroll | $35/mo + $6/ee | Yes | Yes | Manual | Good if you already use Square for payments. Health insurance W-2 add-back requires manual configuration. |
| QuickBooks Payroll | $45-$100/mo | Yes | Yes | Yes | Best if you use QuickBooks Online for bookkeeping. Seamless integration. Health insurance handled automatically. |
Our Top Pick: Gusto for Most Solo S-Corp Owners
Gusto handles S-Corp owner payroll correctly: it automatically adds health insurance premiums to W-2 Box 1 wages for more-than-2% shareholders, covers all state tax filings, and is genuinely affordable for a single-owner business. Their onboarding is self-serve and most solo S-Corp owners can set up payroll without assistance.
If you are in multiple states or have employees beyond the owner, evaluate whether Gusto's pricing remains competitive. OnPay is a strong alternative at identical pricing with all-states coverage in the base plan.