For most small teams, Gusto is the strongest all-around payroll provider in 2026, pairing clean software with transparent per-employee pricing and HR tools many rivals charge extra for. OnPay undercuts it on flat-fee simplicity, Square Payroll fits businesses already on Square, and Justworks suits teams that want big-company benefits through a PEO.
By Claire Hamilton · Reviewed for accuracy by the Finance Fundamentals editorial team
This article is educational information, not personalized financial, tax, or legal advice. Payroll tax rules are federal, state, and sometimes local, and they shift depending on your state and situation. Confirm current requirements directly with the IRS, your state labor department, or a licensed accountant before you run payroll. Figures below focus on small businesses in the United States and were checked against provider pricing pages current as of mid-2026.
What “Best Payroll Provider” Actually Means for a Small Team
A payroll provider calculates wages, withholds taxes, and files the paperwork so your team gets paid correctly and on time. That’s the plain definition, and on its own it makes every provider sound interchangeable.
The complication starts the moment you compare actual products. “Payroll provider” now covers pure software you operate yourself and full-service platforms that file taxes on your behalf. It also covers PEOs that co-employ your staff and hand you a benefits package built for a company ten times your size.
Pricing, liability, and what happens when a state tax notice shows up all change depending on which category you’re shopping in. A five-person bakery and a twelve-person marketing agency both search for the same thing. They rarely need the same product.
This guide walks through six real, currently operating options, what they cost at a realistic small-team headcount, and how to match one to your specific situation rather than the most-advertised name.
The Payroll Taxes Every Provider Has to Handle
Before comparing providers, it helps to know what they’re actually calculating on your behalf, since the fee you pay buys accuracy on numbers that carry real penalties if they’re wrong. Every employer in the United States owes Social Security and Medicare taxes on top of wages, split between employer and employee.
For 2026, the Social Security tax rate is 6.2% each for employer and employee, applied up to a taxable maximum of $184,500 in wages per employee, according to the Social Security Administration. Medicare adds 1.45% from each side with no wage cap. Federal unemployment tax, or FUTA, runs 6.0% on the first $7,000 of each employee’s wages. Most employers get a credit of up to 5.4% for paying state unemployment tax on time, which nets out closer to 0.6% in practice.
None of this changes based on which payroll provider you pick. What changes is whether the provider calculates, withholds, and files it correctly without you having to double-check the math every pay period. Get this math wrong and the penalty notice comes from the state, not from your payroll provider.
How We Scored These Payroll Providers
Every option below was measured against five criteria, fixed before we looked at any individual product. Locking in the scoring first keeps the comparison honest instead of working backward from a favorite.
- Total monthly cost at a realistic small-team headcount, not just the advertised “starting at” price.
- Tax filing accuracy and coverage, including whether multi-state payroll costs extra.
- Speed and clarity of setup, since most small teams do this without a dedicated payroll person.
- What’s bundled versus billed separately, like time tracking, HR support, or benefits administration.
- Support quality when something goes wrong, because something eventually does.
None of these providers paid for placement here. Pricing and features were pulled from each company’s own pricing page, or from independent analyses published in 2026, all cited in the References section below.
Compare the Six Options Side by Side
Here’s the full lineup before any individual profile, so you can see the shape of the market before reading the details. Prices reflect entry-level tiers unless noted otherwise.
| Provider | Starting Price | Best For | Standout Feature |
|---|---|---|---|
| Gusto | $49/mo + $6/employee | Most small teams wanting polished software | Best-reviewed employee experience and app |
| OnPay | $49/mo + $6/employee | Flat pricing, niche industries (farms, nonprofits, clergy) | One plan, everything included, no upsell tiers |
| QuickBooks Payroll | $50/mo + $6.50/employee | Businesses already on QuickBooks Online | Direct sync with QuickBooks accounting |
| Square Payroll | $35/mo + $6/employee | Existing Square POS users, hourly teams | Lowest base fee, tight POS/timecard sync |
| Justworks | $50/mo + $8/employee (payroll only); $79/employee (full PEO) | Teams wanting big-company benefits now | Co-employment shifts compliance risk to Justworks |
| ADP RUN | ~$79/mo + ~$4/employee (estimate, custom-quoted) | Fast-growing teams anticipating complexity | Deepest compliance and HR bench if you scale |
| Square Payroll | $71/mo | |
| OnPay | $85/mo | |
| Gusto (our pick) | $85/mo | |
| QuickBooks Payroll | $89/mo | |
| Justworks (payroll only) | $98/mo | |
| ADP RUN (marketed estimate) | $103/mo | |
| ADP RUN — effective, year-one estimate | ~$185/mo |
Source: Gusto, OnPay, Square, and Justworks published pricing pages; QuickBooks Payroll figures via Fit Small Business analysis; ADP RUN figures are estimates via Payroll Detective’s 2026 pricing analysis, since ADP does not publish standard rates. Confirm current pricing directly with each provider.
Provider Profiles: What You Actually Get
Gusto
Best for: small teams that want the most polished software experience without hiring a payroll specialist. Gusto’s Simple plan runs $49 per month plus $6 per employee, covering single-state payroll, unlimited pay runs, and basic PTO tracking. Plus jumps to $80 plus $12 per employee and adds multi-state payroll, next-day pay, and time tracking. Premium, at $180 plus $22 per employee, adds a dedicated advisor and HR expert access.
Strengths: the interface is genuinely easy to use, onboarding a new hire takes minutes, and employees get a self-service app most workers actually enjoy using. Gusto also files new-hire state reporting automatically, which is a step people forget until a state fines them for skipping it.
Limits: multi-state payroll and time tracking both sit behind the pricier Plus tier. Costs climb quickly once you add contractors, benefits, or a second state.
Verdict: Gusto is the safest default pick for most small teams, full stop. You’ll pay a bit more than OnPay at scale, but the software quality closes that gap for most owners.
OnPay
Best for: owners who want one flat price with no upsell ladder, and specialized industries OnPay builds for directly. OnPay charges $49 per month plus $6 per employee for everything: full-service payroll, tax filing, multi-state support, and hiring tools, with no Plus or Premium tier to climb into later.
OnPay also maintains dedicated setups for restaurants, nonprofits, farms, and religious organizations, handling quirks like clergy housing allowances that generalist platforms often get wrong. Pricing is genuinely simple and rarely surprises you. Multi-state support doesn’t cost extra here, unlike Gusto’s tiering.
Limits: the interface feels less modern than Gusto’s, and live support hours are narrower than some competitors offer.
Verdict: if flat, predictable pricing matters more than software polish, OnPay is hard to beat.
QuickBooks Payroll
Best for: businesses that already run QuickBooks Online for accounting. QuickBooks Payroll starts at $50 per month plus $6.50 per employee for its entry tier, rising to $88 plus $10 for Premium and $134 plus $12 for Elite. Elite adds tax penalty protection up to $25,000 annually and a personal HR advisor.
Strengths: the accounting sync alone can justify the price if your books already live inside QuickBooks. Payroll expenses flow straight into your ledger without manual entry.
Limits: multistate filing costs an extra $12 per state on top of your plan, and background checks run $29.99 each. Costs add up faster than the sticker price suggests once you tally the extras.
Verdict: a smart pick if you’re already inside the QuickBooks ecosystem, and a weaker case if you use different accounting software.
Square Payroll
Best for: retail, food service, and hospitality teams already running Square for point-of-sale. Square Payroll charges $35 per month plus $6 per employee for full-service payroll, or just $6 per contractor with no base fee at all for contractor-only setups.
Strengths: the lowest base fee among the full-service options here, plus direct sync with Square timecards and tips. Setup for existing Square merchants takes almost no extra work.
Limits: the contractor-only tier skips tax filing and multistate support entirely, and feature depth trails Gusto once you need more than basic payroll.
Verdict: the obvious pick if you already run Square, and a weak case for teams with no Square footprint at all.
Justworks
Best for: small teams that want enterprise-grade benefits now, not once they hit fifty employees. Justworks offers standalone payroll at $50 per month plus $8 per employee. Its PEO tiers work differently: $79 per employee for PEO Basic or $124 per employee for PEO Plus, both with no separate base fee, bundling health insurance, a 401(k), and compliance support.
Strengths: under a PEO, Justworks co-employs your staff, which shifts a meaningful share of compliance liability onto them. Benefits pricing that’s normally out of reach for a five-person company becomes accessible through Justworks’ pooled group rates.
Limits: PEO pricing is per employee with no base-fee discount, so it scales in a straight line and gets expensive fast as headcount grows. Co-employment also means giving up some direct control over HR policy.
Verdict: worth serious consideration if benefits and compliance cover matter more to you than raw monthly cost.
ADP RUN
Best for: small teams that expect to grow fast and want a provider with room to scale into. ADP doesn’t publish standard pricing. Independent analysis from Payroll Detective estimates roughly $79 per month plus $4 per employee for the Essential tier, though actual quotes vary by state, headcount, and add-ons selected during a sales call.
Strengths: ADP’s compliance and HR infrastructure runs deeper than any other option here, which matters once you’re managing multiple states or a fast-growing headcount.
Limits: the same analysis found first-year costs, once implementation fees and add-ons are counted, landing closer to $2,000 to $2,500 for a small team. The marketed starting price functions as a floor, not a ceiling.
Verdict: a reasonable bet if you’re planning to scale quickly, but get a written quote before assuming the listed price is what you’ll pay.
Who Each Option Is Wrong For
Fit matters more than rank on this list. A great product for one situation is a poor match for another, and the table below spells out where each provider tends to disappoint people.
| Provider | Wrong for… |
|---|---|
| Gusto | Teams needing multi-state payroll on the cheapest tier |
| OnPay | Owners who want the flashiest, most modern-feeling app |
| QuickBooks Payroll | Anyone not already using QuickBooks for accounting |
| Square Payroll | Businesses with no Square footprint, or needing deep HR tools |
| Justworks | Cost-sensitive teams that don’t need PEO-level benefits yet |
| ADP RUN | Very small, simple teams that don’t want a sales call |
How to Choose Based on Your Situation
Start with three questions before you look at a single price. Do you already use accounting or point-of-sale software that a payroll provider could sync with? Do you need multi-state payroll today, or just eventually? Do your employees expect health benefits you can’t currently offer on your own?
Your answers point toward a category before you compare a single price.
Already on QuickBooks or Square? Start with that provider’s own payroll add-on first, since the integration usually outweighs a few dollars of monthly savings elsewhere. Need real benefits now rather than later? Look hard at a PEO instead of a plain software tool.
No strong pull in either direction? Gusto and OnPay both cover the middle ground well for most small teams, and picking between them mostly comes down to whether you value software polish or flat pricing more.
Do the Math for Your Headcount
Numbers convince better than categories, so here’s a worked example. Say you run a six-person, single-state retail shop that already uses Square for sales.
Square wins on pure price here, which tracks neatly with the shop’s existing POS relationship. Add a second state, or a real need for benefits, and the math flips fast.
Justworks’ PEO jumps from $98 to $474 a month the instant you switch from payroll-only to full benefits administration. That’s not a rounding error. It’s a five-figure annual decision hiding inside a monthly number, and it deserves more thought than a quick sign-up click usually gets.
Run this same arithmetic with your actual headcount before you sign anything. The provider that looks cheapest in marketing copy isn’t always cheapest for your specific team size and state mix.
Common Payroll Provider Mistakes to Avoid
Most pricing regret traces back to a handful of repeatable mistakes, and every one of them is avoidable with fifteen minutes of homework before you sign.
- Pricing off the base fee alone. A $35 base fee sounds great until you multiply the per-employee add-on across your real headcount.
- Assuming multi-state is included. Several entry tiers charge extra the moment an employee works in a second state.
- Skipping the written quote. Custom-quoted providers like ADP can land far above their marketed floor once add-ons and setup fees stack up.
- Misclassifying workers. Treating an employee as a 1099 contractor to save money is a compliance problem waiting to surface, not a savings strategy.
- Ignoring state unemployment insurance setup. New employers often need a state UI account number before the first payroll run can even process.
Most of these mistakes share one root cause: comparing sticker prices instead of total monthly cost at your real headcount and state footprint. Fix that comparison and most of the surprises disappear.
What Experienced Small-Business Owners Do Differently
People who’ve run payroll for years tend to skip the marketing pages entirely and go straight to a cost simulation for their specific headcount, projected twelve months out rather than judged on today’s number alone.
They also separate money before it moves. Bookkeepers who’ve set up dozens of small businesses insist on running payroll out of a dedicated business bank account. Mixing payroll transfers with personal spending is exactly how missed tax deposits and reconciliation headaches start.
Experienced owners call for a live quote before assuming any advertised price applies to them, especially with custom-quoted providers like ADP. They also check accounting or point-of-sale integration before price, on the theory that a slightly pricier tool saving an hour of manual entry every pay period wins out over a full year.
One habit shows up again and again among people who’ve done this for a decade: they read the cancellation and contract terms before signing, not after a bad experience forces them to. A provider with no long-term contract, like Gusto’s month-to-month billing, carries real value that a price comparison alone won’t show you.
Payroll Terms Worth Knowing
| Term | What it means |
|---|---|
| PEO | Professional Employer Organization; co-employs your staff to offer group-rate benefits and shared compliance responsibility |
| Co-employment | A legal arrangement splitting employer responsibilities between your business and a PEO |
| SUTA / SUI | State unemployment tax or insurance, paid by employers into a state fund |
| EIN | Employer Identification Number, required before you can run payroll at all |
| Multi-state payroll | Filing and withholding taxes correctly for employees working in more than one state |
Key Takeaways
- Gusto is the strongest general-purpose pick for small teams that value software quality and don’t need the cheapest possible price.
- OnPay wins on flat, predictable pricing with no tiers to climb.
- Match your provider to software you already use. QuickBooks users should look at QuickBooks Payroll; Square users should look at Square Payroll.
- A PEO like Justworks makes sense once benefits matter more than minimizing monthly cost.
- ADP RUN’s marketed price is a starting point for negotiation, not a final number. Get a written quote.
- Run the real math for your headcount and state footprint before committing to any provider.
Quick Decision Guide
| If your situation is… | Consider |
|---|---|
| You want the best all-around software and don’t mind paying a little more | Gusto |
| You want one flat price with no upsell tiers | OnPay |
| You already run QuickBooks Online | QuickBooks Payroll |
| You already run Square for sales or timecards | Square Payroll |
| You need real health benefits and compliance cover now | Justworks (PEO) |
| You expect fast growth and want room to scale | ADP RUN (get a written quote first) |
One more note before you decide: if you’re comparing a payroll-only tool against a PEO, you’re comparing two different products, not two prices for the same thing. A PEO bundles benefits and liability transfer. Payroll software just moves money and files forms.
Frequently Asked Questions
What is the cheapest payroll provider for a small business?
Among full-service options, Square Payroll currently has the lowest base fee at $35 per month plus $6 per employee, making it the cheapest choice for a small, single-state team that’s already comfortable with Square’s ecosystem.
How much does payroll cost per employee?
Most software-based providers charge $6 to $8 per employee per month on top of a base fee of roughly $35 to $50. PEOs charge per employee with no base fee, typically $79 to $124 per employee for full benefits coverage.
Is Gusto or QuickBooks Payroll better for a small business?
Gusto generally wins on software quality and ease of use. QuickBooks Payroll wins if you already use QuickBooks Online for accounting, since the direct sync saves real time every pay period.
Do I need a PEO or just payroll software?
Choose payroll software if you mainly need wages calculated and taxes filed correctly. Choose a PEO if you also want group-rate health benefits, a 401(k), and shared compliance liability, and you’re willing to pay a higher per-employee rate for it.
Can I switch payroll providers mid-year?
Yes, though most providers recommend switching at a quarter boundary to keep tax filings clean. Most offer migration assistance, and several, including Gusto and OnPay, advertise free setup help for the transition.
What information do I need to set up payroll for the first time?
You’ll need an Employer Identification Number, state tax account numbers, employee W-4 and I-9 forms, and your business bank account details for direct deposit and tax payments.
What happens if I run payroll late or make a mistake?
Late tax deposits can trigger IRS penalties that grow the longer they go unpaid, and most states charge their own late fees on top of that. Full-service providers catch most calculation errors before filing, which is one of the strongest arguments for paying a real provider instead of running payroll by hand.
References
- Gusto, “Gusto Pricing, Plans & Fees,” gusto.com/product/pricing, accessed 2026.
- OnPay, “OnPay Pricing,” onpay.com/payroll/software/costs-pricing, accessed 2026.
- Justworks, “PEO & Payroll Plans Pricing,” justworks.com/pricing, accessed 2026.
- Square, “Payroll Services Pricing,” squareup.com/us/en/payroll/pricing, accessed 2026.
- Fit Small Business, “QuickBooks Payroll: Core vs. Premium vs. Elite,” 2026 comparison analysis.
- Payroll Detective, “ADP Pricing 2026: What RUN and Workforce Now Actually Cost,” 2026 analysis.
- Social Security Administration, “Contribution and Benefit Base,” ssa.gov/oact/cola/cbb.html, 2026.
- Internal Revenue Service, “Publication 15 (Circular E), Employer’s Tax Guide,” IRS.gov, accessed 2026.
