Payroll Service Providers: A Study of 1,250+ G2 Reviews

Payroll only gets noticed when it goes wrong, so the best provider is the one you rarely think about.

Five payroll service providers stand out in G2's Fall 2026 Grid Report, each for a different kind of buyer: Insperity and ADP Payroll for US employers that want payroll and tax filing handled end to end, G&A Partners and FrankCrum for small businesses that want benefits and compliance bundled in, and INS Global for companies hiring abroad without a local entity.

The difficulty is that payroll providers aren't one market. Some take over employment administration entirely under a co-employment agreement. Some process pay runs and file taxes while you keep the employer relationship. Some exist to hire and pay people in countries where you have no entity. Those are three different purchases, and the review evidence separates them clearly.

This payroll services comparison shows how every scored provider differs by buying model, company size, and coverage, then answers the questions buyers ask most often.

The findings in this payroll services comparison come from 980+ approved G2 reviews of the providers scored in G2's Grid Report for Payroll Services, collected through September 2026. Star ratings and review counts are taken from each provider's live G2 profile as of October 2026, while satisfaction percentages and Net Promoter Scores come from the Grid Report. We grouped the reviews into recurring themes and used AI to surface patterns specific to company sizes and regions. We also checked each provider's official website to support our findings.

How payroll services providers compare in 2027

Based on verified G2 reviews, Insperity is the highest-scoring provider in the category and fits small and mid-sized companies with no internal HR function. ADP Payroll suits businesses that want payroll and tax filing without a co-employment agreement. G&A Partners and FrankCrum are the strongest-rated PEOs for companies that want benefits, buying power, and payroll.

INS Global, Deel Services, Dhi ADT, and MSA serve a different buyer entirely: companies hiring in countries where they have no legal entity. OneSource Virtual serves Workday customers who want payroll run inside their own tenant, and JeonSoft serves Philippines-based employers.

Satisfaction scores alone won't separate this shortlist. Professionalism averages 93% across the category, and nine of the eleven providers sit at 90% or above on it. What separates them is operational: how fast urgent requests get answered, whether the same people stay on your account, and how much your team can do without raising a ticket.

G2 Scores, satisfaction percentages, and market presence come from Grid Report for Payroll Services. Category averages: likelihood to recommend 88%, ease of doing business with 92%, communication skills 91%, professionalism 93%, responsiveness 91%, ability to execute 91%, expertise of team 92%, and an NPS of 63. Themes reflect patterns across each provider's review text, not individual comments.

Which payroll services provider matches the way you want to buy payroll?

Insperity, G&A Partners, and FrankCrum match buyers who want full HR outsourcing under co-employment. ADP Payroll and Execupay match those who want pay runs and tax filing only. INS Global, Dhi ADT, Deel Services, and MSA act as employer of record where you have no entity, and OneSource Virtual runs payroll inside your own Workday tenant.

The choice underneath all of this is how much of the employment relationship you want to hand over, and that decision sets your liability, your benefits pricing, and who your employees call when a paycheck is wrong.

The table below matches each buying model with the providers whose reviews describe that work most consistently.

Which payroll services providers cover your company size and locations?

Insperity, FrankCrum, G&A Partners, and ADP Payroll cover US employers from single-state small businesses to multi-state operations. Dhi ADT and Deel Services cover European expansion, INS Global and MSA cover Asia-Pacific, OneSource Virtual covers Workday mid-market and enterprise, and JeonSoft covers Philippines-based workforces.

A ten-person company in one state has almost nothing in common with a company hiring its first engineer in Singapore, and the providers that serve them well barely overlap.

Which payroll services providers already work with employers in your industry?

Insperity has the deepest non-profit client base in the category, FrankCrum and G&A Partners the deepest construction base, ADP Payroll the broadest retail and healthcare base, and JeonSoft the most concentrated financial services base. Every provider here has technology clients, so that sector won't narrow your shortlist.

Industry matters in payroll for a practical reason: it determines your pay cycles, your workers' compensation classification, and how much of your workforce is hourly. The table below shows which sectors each provider's reviewers come from.

Frequently asked questions about payroll service providers

Shortlisting payroll providers? These answers can help you assess their fit for your business.

Q1. How is payroll services pricing structured?

Payroll services pricing uses one of two structures. ADP reports that PEO administrative fees may range from 2% to 12% of total payroll, or roughly $40 to $160 per employee per month, depending on the services included, workforce size, employee locations, and risk factors such as industry and claims history. FrankCrum publishes a line-item invoice breakdown separating administrative fees from statutory costs such as FICA, FUTA and SUTA, and states there is no universal per-employee rate. Ask whether year-end processing, off-cycle runs, and setup sit inside the fee or outside it.

Q2. What is the difference between a PEO, a payroll bureau, and an employer of record?

A PEO co-employs your staff, a payroll bureau processes pay while you remain the sole employer, and an employer of record becomes the legal employer in a country where you have no entity. Under a PEO such as Insperity or FrankCrum, the provider files payroll taxes under its own employer identification number. With a bureau such as ADP Payroll, you keep the employer relationship. With an EOR such as INS Global, the provider holds the employment contract outright.

Q3. Which payroll services suit a small business running monthly payroll without an HR team?

Insperity, FrankCrum, and ADP Payroll are the best-matched payroll services for a small business with no HR team. Insperity reports that 99% of first payrolls run without a defect. FrankCrum assigns a named payroll coordinator and holds the category's highest satisfaction score at 92. ADP's RUN platform offers guided setup and checks that flag issues before a run is committed.

If complete tax compliance matters more than convenience, the ranking shifts. FrankCrum states that it includes the 940 and 941 filings and W-2s that many payroll companies bill separately, and G&A Partners' CPEO status is the strongest formal guarantee available to a small business, since a certified PEO carries the payroll tax liability itself.

Q4. Who is liable if your payroll provider files your taxes late or incorrectly?

If your payroll provider files late or incorrectly, who pays depends on the model you bought. An IRS-certified PEO (CPEO) such as G&A Partners carries sole legal responsibility for client payroll taxes, which G&A states on its own site. ADP states that it covers penalties for errors made by its own representatives, which doesn't extend to errors caused by data you supplied. Get the remedy in writing, since correcting an error and paying the penalty are different commitments.

Q5. How do payroll services prevent withholding and filing errors?

Payroll services prevent withholding and filing errors through three different mechanisms, and it is worth knowing which one you are buying. ADP relies on automated calculation with pre-submission checks that flag issues before a run is committed. A certified PEO such as G&A Partners removes the exposure a different way, by taking the filing obligation onto its own tax identification number. FrankCrum assigns a specialist whose only job is tax compliance, filings, and year-end reporting. Automation, transferred liability, and a named human are not interchangeable, so ask which one sits behind the promise.

Q6. Which payroll providers handle payroll and withholding across multiple US states?

ADP Payroll, Insperity, FrankCrum, and G&A Partners all file across all 50 states. ADP states that it calculates, files, and pays federal, state, and local payroll taxes automatically nationwide. Insperity files regardless of where you operate and manages wage garnishments each pay period. Ask how state unemployment rates are managed as you add states, since that is where multi-state costs drift.

Q7. Which payroll services integrate with QuickBooks, and is it a live sync or a file export?

ADP Payroll integrates with both QuickBooks Online and QuickBooks Desktop, and Insperity provides a general ledger interface as part of its payroll service. G&A Partners offers application programming interface (API) integrations on its larger packages. Ask whether the connection is a live sync or a scheduled file export, because that decides how much reconciliation your bookkeeper still does.

Q8. Which payroll providers combine benefits administration with payroll deductions?

G&A Partners, FrankCrum, and Insperity combine benefits administration with payroll deductions, because the PEO model runs both in one system. G&A Partners manages benefits procurement, enrollment, billing, and reporting through named specialists. FrankCrum bundles health, dental, vision, and workers' compensation with payroll. Insperity reviewers describe deductions and retirement contributions handled in the same portal as pay.

On the reporting side, FrankCrum's published services cover ACA compliance and OSHA 300 reporting alongside benefits, and G&A Partners states that its specialists handle ACA eligibility tracking and reporting, COBRA, and ERISA retirement plan requirements, so benefits administration and compliance reporting sit with the same team.

Q9. Which payroll services offer a mobile app for clocking in and viewing payslips?

ADP Payroll, Insperity, JeonSoft, and FrankCrum all offer mobile apps for clocking in and viewing payslips. Employee self-service is the most common theme across ADP's reviews, covering clock-in, pay stubs, W-2s, and time-off requests. Insperity gives employees 24/7 access to pay stubs, timesheets, and benefit elections, and JeonSoft reviewers describe self-service filing for missed punches.

Q10. What does a PEO include that a standalone payroll service doesn't?

A PEO adds group-rate benefits, workers' compensation, HR advisory, and compliance administration on top of payroll, and takes on employer liability through co-employment. FrankCrum's published services cover OSHA 300 reporting, Affordable Care Act (ACA) compliance, COBRA administration, and Employment Practices Liability Insurance. A standalone payroll service delivers the pay run and the filings, and leaves the rest with you.

Q11. Can you switch payroll providers mid-year, and what breaks if you do?

Yes, you can switch mid-year, but your year-to-date totals have to transfer cleanly or your year-end filings will be wrong. The risk sits in employee year-to-date wage and tax figures, open wage garnishments, and benefit deductions in progress. G&A Partners reviewers switching from another PEO flag employee change management as the underestimated part.

Q12. Which payroll providers can pay staff in countries where you have no legal entity?

INS Global, Deel Services, Dhi ADT, and MSA all act as employer of record. INS Global reviewers describe hiring across Singapore, Japan, South Korea, China, and India. Dhi ADT handles European contracts, payroll, and Dutch visa sponsorship together. Deel automates payroll across several countries, and MSA handles company incorporation in China if you decide you do want a local entity.

Q13. How long does it take to onboard a new payroll provider?

Onboarding a new payroll provider takes roughly four to seven weeks for a PEO and less for a payroll bureau. G&A Partners publishes an onboarding phase averaging five to seven weeks covering data gathering, benefits enrollment, and payroll testing. Insperity says on its own site that integration can take as few as 30 days. Quarter boundaries are the cleanest switch points, because year-to-date totals and quarterly filings line up.

Q14. What should be in a payroll service agreement before you sign?

A payroll service agreement should pin down four things: response-time commitments by request type, who your named contact is and what happens when they leave, who pays the penalty for a filing error, and how renewal pricing changes. Reviewers across the category raise response times during busy periods, so a general promise of good service isn't enough. For PEO agreements, add how benefit premiums are set for your company size.

Q15. Which payroll providers are rated highest by HR managers rather than by employees?

FrankCrum leads on satisfaction score at 92, followed by Insperity at 90 and G&A Partners at 89, among providers whose reviewers are mostly HR managers and business owners. On the underlying attributes, FrankCrum records 98% for both communication skills and expertise of team, while G&A Partners records 96% for expertise of team and an NPS of 85. Insperity also holds the category's highest G2 Score at 90, a separate measure that combines satisfaction with market presence. All three earn their ratings on the same quality: continuity of the people assigned to the account.

Q16. What happens to your payroll if you leave a PEO?

Leaving a PEO means taking back the employer role, so you need your own state unemployment accounts, your own federal employer identification number on file for payroll tax, and a plan for benefits your staff will lose on the last day of co-employment. FrankCrum notes that a PEO files under its own tax identification number, which is why year-to-date totals have to be reissued rather than simply transferred. Agree on the exit timeline, final filings, and benefits run-out with your provider before you give notice.

Choosing a payroll provider you won't have to replace

Payroll is a long relationship, and switching mid-year is painful enough that most buyers only do it once. That makes the model you choose more consequential than the score. Decide first whether you want a PEO to take over employment administration, a bureau to run pay and filings while you keep the employer relationship, or an employer of record to hire somewhere you have no entity. Those three choices rule out most of this list immediately.

Once you have the model, compare on the things reviewers actually raise. Ask who your named contact is and what happens when they leave. Ask for response-time commitments by request type, not a general promise of good service.

Then settle the two questions that cost money later: who pays the penalty when a filing is wrong, and what your team can do without raising a ticket. Get both answered in the contract rather than the sales deck.

Then ask to speak to a client of similar headcount, in the same states, with the same benefit mix. A satisfaction score tells you a provider works for somebody. A reference call tells you whether it works for payroll that looks like yours.

Hiring beyond your home country? Explore the Employer of Record (EOR) providers on G2.