Cost by Size / 1-Employee S-Corp

Payroll cost for a 1-employee S-corp: the owner-only math

S-corp owners running W-2 payroll for themselves face an awkward pricing dynamic. Most major payroll providers price as base fee plus per-employee fee, which is calibrated for businesses with 5 to 50 employees and treats the 1-employee setup as an afterthought. This page works through what each major provider actually costs for the single-employee S-corp, why Patriot Software wins on raw price, and when paying more for Gusto or OnPay is worth it.

Six options for 1-employee S-corp payroll

Pricing as of 16 May 2026 from each vendor's published pricing page. Annual cost assumes 12 monthly bills. The Square Payroll Contractors option is included for completeness but is the wrong tool for S-corp W-2 payroll.

Option	Monthly	Annual	Notes
Gusto Simple	$55	$660	Full-service payroll, tax filing, year-end W-2. Easiest to set up for non-experts.
OnPay	$55	$660	Same price as Gusto Simple, slightly faster customer service. Month-to-month.
QuickBooks Payroll Core	$51	$612	$45 base + $6 per employee. Wins by $4/month if you already use QuickBooks Online.
Patriot Software	$27	$320	$17 base + $4 per employee for Basic Payroll (no tax filing) or $37 base for Full Service.
Square Payroll (Contractors)	$6	$72	Only $6 per contractor, no W-2 support. Wrong tool for an S-corp owner since you need W-2.
DIY (no software)	$0	$0	Free to do manually but requires understanding quarterly 941, annual 940, state UI, W-2/W-3, year-end reconciliation. Real cost is 4-8 hours per year of your time plus IRS penalty risk.

Why the S-corp owner-only setup is genuinely different

S-corp owners running payroll for themselves are the smallest possible payroll customer and have specific needs that differ from a 2-employee small business. The owner is also the bookkeeper, the HR department, and the compliance officer. The payroll software is one tool in a stack that already includes accounting, tax planning, and a CPA relationship. The features that matter most are reliability of tax filing, clean year-end W-2, and the ability to defer to a CPA without friction.

What does not matter much for this profile: HR features, time tracking, benefits administration, multi-state payroll (most S-corp owners are single-state), employee self-service portal (the owner is the only employee). This is why Patriot Software's stripped-down product wins on price: it focuses exclusively on what this customer needs and skips everything else. Gusto and OnPay sell the same payroll function plus a lot of features the owner-only setup will not use.

The honest case for paying $20 to $30 per month more for Gusto or OnPay over Patriot: brand recognition for accountant integration (most CPAs are familiar with Gusto's reports), better mobile app, faster customer service if something goes wrong, cleaner integration with downstream accounting tools. For most S-corp owners these are worth the modest premium, but they are not transformative.

The reasonable compensation question

The most consequential decision for an S-corp owner is not which payroll provider to use, it is what salary to pay yourself. The IRS requires reasonable compensation for services performed, and that figure determines how much income flows through W-2 wages (subject to 15.3 percent FICA on both employee and employer portions, paid by the S-corp) versus distributions (not subject to self-employment tax).

For most professional services owners, reasonable compensation lands in the $50,000 to $120,000 range based on what a non-owner employee with similar skills would earn. A software development consultant generating $200,000 in S-corp revenue might set salary at $80,000 and take $120,000 in distributions, avoiding self-employment tax on the $120,000 distribution portion. A high-revenue consultant generating $400,000 might set salary at $130,000 and take $270,000 in distributions.

The IRS audit risk is genuine. Setting salary too low (say $30,000 on a $300,000 revenue business) attracts scrutiny and possible reclassification of distributions as wages, plus penalties. Most CPAs recommend documenting the reasoning for the salary level with reference to industry compensation data, role responsibilities, and time spent. The payroll provider does not make this decision, the CPA does.

Patriot Software vs Gusto: the honest comparison

For a 1-employee S-corp with a $75,000 salary paid bi-weekly, Patriot Software Full Service at $41 monthly handles every payroll function: calculate gross to net, withhold federal income tax, withhold and match FICA, file quarterly 941, file annual 940 and W-2, handle state UI registration and filing. Annual cost is $492. Gusto Simple at $55 monthly does the same plus offers benefits brokerage, 401(k) integration through Guideline, and a more polished interface. Annual cost is $660.

The $168 annual difference is real but small. For an S-corp owner paying themselves $75,000, that is 0.22 percent of salary. The decision is essentially whether the slight interface and brand advantage of Gusto is worth $168 per year. For owners who plan to use Gusto's benefits brokerage to set up an individual market health plan or want the 401(k) integration for solo 401(k) administration, Gusto is the better choice. For owners who already have health insurance figured out and are just buying a payroll execution tool, Patriot is the better economic choice.

The DIY option, examined honestly

DIY payroll for an S-corp owner is mechanically possible and saves $500 to $700 per year versus full-service options. The steps: calculate gross to net using a free payroll calculator each pay period, deposit federal taxes via EFTPS, deposit state taxes through your state's portal, file Form 941 quarterly (due end of January, April, July, October), file Form 940 annually (due January 31), prepare and file W-2 plus W-3 annually (due January 31), handle state UI quarterly filings.

Total time investment for an experienced bookkeeper is 4 to 8 hours per year. For an S-corp owner who is not an experienced bookkeeper, it is more like 10 to 20 hours per year plus the risk of penalty for missing deadlines (the IRS penalty for late 941 deposits starts at 2 percent and escalates to 15 percent of the deposit). Most CPAs do not recommend DIY for S-corp owners. The math favours paying $50 per month for someone else to handle it unless your hourly value is genuinely low.

What changes when you add a second employee

Moving from 1 employee to 2 changes the math in two ways. First, the per-employee fee doubles on every major provider: Gusto Simple goes from $55 to $61 monthly, OnPay from $55 to $61, Patriot Full Service from $41 to $45. The cost differences between providers stay roughly the same in absolute dollars but compress as a percentage.

Second, the operational complexity increases substantially: handling W-4s for a non-owner employee, complying with state new-hire reporting, withholding and remitting employee FICA, providing workers' comp coverage in states that require it for non-owner employees, possibly providing benefits. At 2 employees, the case for full-service Gusto or OnPay over Patriot strengthens because the complexity is no longer pure DIY-territory simple. See the 5-employee cost guide for the next size band.

Where to go next

Payroll cost for 5 employees

The next size band where the math changes meaningfully.

Gusto cost

The most common upgrade from Patriot once you hit 3+ employees.

DIY vs outsourced payroll

Full breakdown of when DIY makes sense and when it does not.

Contractor / 1099 cost

If you are weighing W-2 employment vs contractor structure.

1-employee S-corp payroll FAQs

Why do S-corp owners need payroll at all if there is only one employee?

S-corp owners who actively work in the business are required by the IRS to take a reasonable salary as a W-2 employee before taking distributions. This is the rule that makes S-corp tax savings work: the salary is subject to payroll tax (FICA: 15.3 percent), but distributions on top are not subject to self-employment tax. Without W-2 payroll, the IRS treats all S-corp profit as wages subject to payroll tax, defeating the structure's purpose.

What is a reasonable salary for an S-corp owner-only setup?

The IRS standard is reasonable compensation for the services performed, typically benchmarked against what you would pay a non-owner employee to do the same work. For software developers, marketing consultants, and similar professional services owners, reasonable salaries land in the $50,000 to $120,000 range depending on revenue and market. Lower than this, the IRS may reclassify distributions as wages. Most CPAs recommend starting at the lower end and increasing as revenue grows.

Why is Patriot Software so much cheaper than Gusto for 1 employee?

Patriot Software has built its business specifically around micro-business and S-corp owner-only payroll, where the customer needs simple monthly processing without the HR features that Gusto bundles. The Basic Payroll plan at $17 + $4 calculates payroll and gives you the reports but requires you to file taxes yourself. Full Service at $37 + $4 adds tax filing. For an S-corp owner comfortable with quarterly tax filings, Basic Payroll at $252 per year is hard to beat.

Should I just do payroll manually to save money?

For some S-corp owners, yes. The monthly steps are straightforward: calculate gross pay, compute federal income tax withholding (use IRS Pub 15-T tables or a free calculator), compute employee and employer FICA at 7.65 percent each, deposit the federal withholding plus both halves of FICA monthly via EFTPS, file quarterly Form 941, file annual Form 940, file annual W-2 plus W-3, handle state unemployment insurance. Most S-corp owners value the $50/month for someone else to do this. The break-even is whether your time is worth more than the $30 to $50 per month delta between DIY and full-service.

What is the cheapest legitimate way to run S-corp payroll?

Patriot Software Full Service at $37 + $4 = $41 monthly, $492 annually. That is the cheapest full-service option that handles federal and state tax filing, generates W-2 at year-end, and includes employee self-service for the owner. Below that price point, you are doing payroll manually or using software that does not file taxes.

Can I skip payroll if I am the only employee?

Not legally if you are taking distributions. The IRS rule requires reasonable compensation as wages before distributions. Some S-corp owners run payroll only one or two times per year (an annual lump sum salary in December), which works mechanically but is less common and slightly more audit-risky than monthly payroll. Most CPAs recommend bi-weekly or semi-monthly payroll to establish consistent reasonable compensation pattern.

Does the 1-employee S-corp need workers' comp?

Depends on the state. In most states, single-owner S-corps with no other employees can elect out of workers' compensation insurance because there is nobody to injure. A few states (California is the strictest) require coverage or formal exemption filing even for owner-only setups. Check your state's specific requirements before assuming you can skip it.