Best payroll software for a 1-employee S-corp owner in 2026

If you run an S-corporation and you're the only person on the payroll, you're in one of the most awkward spots in small-business payroll. You don't need crew time tracking, benefits administration, or a 50-state compliance suite — you need exactly one thing done correctly, on a schedule, forever: run a single W-2 paycheck for yourself and have the software file the federal and state payroll taxes that go with it. The catch is that most payroll software is priced for teams of 10, 25, or 50, so a solo owner ends up paying for a platform built for a company that doesn't exist. This guide ranks the two tools we grade most often for the single-shareholder S-corp use case — based on published pricing, documented features, and user reviews, not on any test of our own — so you can get your one paycheck out and your payroll taxes filed without overbuying.

Disclosure: PayrollGrade earns a commission via Commission Junction (CJ) when readers sign up for some products through our links, at no extra cost to you. This never affects our A–F grades or which product we recommend — compensation does not buy placement.

One note, because this topic is part tax and part software: the IRS requires S-corp shareholder-employees to pay themselves reasonable compensation before taking distributions. What counts as reasonable is fact-specific to your role, industry, and revenue, and getting it wrong carries real risk. This article is general information to help you compare payroll software — it is not legal or tax advice. Decide your actual salary figure with a CPA; the software's job is only to run and file the number you set.

What a 1-employee S-corp actually needs from payroll

Strip away the enterprise feature lists and the requirements for a single-shareholder S-corp are short:

• Full-service tax filing. The software should calculate, withhold, deposit, and file your federal payroll taxes (941/940), Social Security and Medicare, plus state withholding and unemployment — automatically. This is the whole reason to pay for payroll instead of doing it by hand.
• A clean single W-2 run, plus year-end W-2. You run payroll for one person, usually on a fixed schedule, and your own W-2 has to be produced and filed at year-end. Simpler is better; you don't need crew scheduling or shift tools.
• Direct deposit to yourself. Standard, but confirm the deposit speed and whether faster deposit costs extra.
• Predictable, low cost. With one employee, the per-employee fee barely matters — the base monthly fee is almost the entire bill, so the cheapest defensible base fee usually wins.

Two things you can usually skip at this size: deep HR support (you're a team of one) and advanced integrations beyond your accounting software. Paying for an HR tier here is typically overbuying.

The two we grade for solo S-corp payroll

Both tools run a single W-2 employee and file payroll taxes as full-service products. They differ most on pricing transparency and the buyer they're built for.

1. QuickBooks Payroll Core — best for cost-conscious solo owners (especially QuickBooks users)

For a one-person S-corp, QuickBooks Payroll Core is the pick we grade highest on cost and simplicity. It's the entry tier of Intuit's payroll line, it publishes pricing openly, and it covers the only jobs that matter here: automated federal and state tax filing, unlimited payroll runs, direct deposit, and year-end W-2s. Based on Intuit's published pricing, Core uses the standard flat base fee + per-employee fee model — and with one employee, that per-employee charge is a rounding error, so you're essentially paying the base.

The strongest reason a solo owner reaches for QuickBooks specifically is the native QuickBooks Online accounting integration. If you already keep your S-corp books in QuickBooks Online, payroll posts straight into your ledger with no double entry or CSV imports — the real time-saver for an owner doing their own bookkeeping. Intuit also frequently runs an introductory promotion; treat any promo as subject to change and confirm the current offer on the provider's site.

Core's HR features are thin and same-day deposit lives in the higher tiers, but for a single-shareholder S-corp none of that is a dealbreaker.

See current pricing and start a plan: QuickBooks Payroll Core.

2. RUN Powered by ADP — Essential Payroll — best for owners who want a big-brand, full-service safety net

RUN Powered by ADP — Essential Payroll is ADP's small-business entry package, and it's the choice for a solo owner who wants the reassurance of the largest name in payroll behind their filings. RUN handles full-service payroll tax filing and W-2s, and ADP's brand-level reliability and customer support are consistently cited as strengths in user reviews.

Two things to understand before choosing it for a one-person company:

1. ADP RUN is quote-only. Unlike QuickBooks, ADP doesn't publish a flat price for RUN Essential — pricing comes by quote and is commonly described by users as a base fee plus a per-payroll-run charge rather than one flat monthly fee. That structure means your cost can scale with how often you run payroll, worth modeling if you pay yourself frequently. Any number quoted online is an estimate, not a binding price.
2. It can be more than a solo owner needs. ADP shines as you add employees, multi-state complexity, and HR needs. For exactly one W-2 employee you may be paying for headroom you won't use soon — though if you plan to hire, that's a feature, not waste.

For a single-shareholder S-corp with no near-term hiring plans, ADP RUN Essential is the value pick when brand trust and full-service support matter more to you than the lowest price. If you expect to grow into a team, it's also a reasonable on-ramp.

Get a quote and see packages: RUN Powered by ADP — Essential Payroll.

QuickBooks Payroll Core vs ADP RUN Essential at a glance

Check current options: QuickBooks Payroll Core — RUN Powered by ADP — Essential Payroll

Pricing and feature details are as of 2026 and subject to change — payroll vendors revise pricing frequently, so confirm current numbers and terms on the provider's own site before you commit. Grades reflect fit for a single-shareholder S-corp specifically, not the products overall.

How to choose for your one-person S-corp

The decision comes down to two questions about your situation:

Do you already use QuickBooks Online for your S-corp books? If yes, QuickBooks Payroll Core is the path of least resistance — payroll and accounting in one place, published pricing, and a cost close to the base fee alone at one employee. It's the default pick on price and simplicity.

Do you value a big-brand safety net, or plan to hire soon? If a recognizable giant with strong support gives you peace of mind, or you'll add employees within a year or two, ADP RUN Essential earns its keep. Request a quote so you can compare its real number against QuickBooks' published price, and ask how the per-run charge works for a once-or-twice-a-month paycheck.

A note on cadence: under a per-run model like ADP's, running payroll less often (monthly or semi-monthly) can hold cost down. Set the schedule with your CPA so it lines up with your reasonable-compensation plan.

The bottom line

For most one-person S-corps, QuickBooks Payroll Core is the better starting point: it runs one W-2 paycheck and files the payroll taxes at a transparent, predictable price, with a native edge if you're already on QuickBooks Online. ADP RUN Essential is the pick when big-brand support outweighs price or you expect to hire soon. Either way, confirm pricing on each provider's site, get an ADP quote so you're comparing real numbers, and set your salary figure with a tax professional — the software handles the rest.

Frequently Asked Questions

Do I really need payroll software as a one-person S-corp?

If you're a single-shareholder S-corp, the IRS expects you to pay yourself reasonable compensation as a W-2 employee — real payroll-tax withholding, deposits, and filings (941/940, plus state). Payroll software automates that so you don't miss deadlines or miscalculate. You can do it manually, but for one paycheck the cost of full-service software is usually small next to the risk of a missed filing. Your actual reasonable-compensation figure is a tax question for your CPA; the software just runs and files the number you set.

Which is cheaper for one employee, QuickBooks Payroll Core or ADP RUN Essential?

Based on published information, QuickBooks Payroll Core is the more transparent and typically lower-cost option for a single employee: it lists a flat base fee plus a small per-employee fee, so with one employee you're essentially paying the base. ADP RUN Essential is quote-only and commonly described as base-fee-plus-per-run, so its total depends on your quote and how often you run payroll. To compare exact dollars, check QuickBooks' published price and request an ADP quote — and treat any figure as an estimate, since pricing changes frequently.

Will payroll software file my S-corp payroll taxes automatically?

Both QuickBooks Payroll Core and ADP RUN Essential are full-service products that, per their documented features, calculate, deposit, and file your federal and state payroll taxes and produce your year-end W-2. That automated filing is the main reason to pay for payroll rather than handle it yourself. Confirm that state filing for your specific state is included when you sign up, and verify current terms on the provider's site, since coverage and pricing can change.

Do I need an HR or higher tier for a single-shareholder S-corp?

Generally no. Higher tiers — QuickBooks Payroll Premium/Elite or ADP RUN's Complete/HR Pro packages — add HR support, faster deposit, and compliance tooling aimed at teams. For one W-2 employee, those features are usually overbuying. The entry tiers (QuickBooks Payroll Core, ADP RUN Essential) cover the core need: run one paycheck and file the taxes. You can always upgrade later if you hire.