10 Top Payroll Outsourcing Providers for Accounting Firms in 2026

Authored By: Garima
Meet Garima, an integral member of the Invedus editorial team. With three years of experience...

Payroll has traditionally required precision and time. Most companies trying to grow out of their shell require up to 2 payroll experts with at least 5 years of experience to close payroll on time. But accounting firms suffer even more and can’t balance their in-house payroll most of the time.

This is the reason why many accounting firms choose to delegate payroll management to outsourced providers. Cost, time management, and no overheads are some other reasons why this arrangement suits accounting firms that more often deal with tight deadlines.

Finding the right payroll outsourcing provider, however, is tough. Hence, we have created a list of the top 10 payroll outsourcing providers for accounting businesses. In detail, we have reviewed each option, so all you have to do is jump straight to an RFP and start delegating.

Let’s review these options together!

1. Invedus

Invedus is a market-leading outsourcing company for payroll processing. The company offers virtual payroll experts and project-based solutions to businesses across 30+ countries. Their team of payroll officers is trained in 30+ payroll and finance software, like Gusto, Paychex, ADP, QuickBooks, etc. With over a decade of experience and 250+ global clients, Invedus delivers cost-effective, scalable payroll services.

Capabilities Offered

• End-to-end payroll calculation and processing with direct deposits
• Federal, state, and local tax management with year-end W-2/1099 preparation
• Compliance monitoring, wage garnishment handling, and audit support
• Automated time and attendance management with overtime calculations
• HR support, including onboarding, benefits administration, and record management
• Custom reporting, analytics, and accounting software integration

Payroll Model Followed

Dedicated virtual payroll officers work as an extension of your team, managing your complete payroll function remotely with full transparency and regular updates on all activities.

Pricing

• Part-Time Hire: $7.99/hour (minimum 10 hours/week, flexible schedule, pay-as-you-go)
• Full-Time Dedicated Employee: $999/month (40+ hours/week, monthly rolling contracts, exclusive assignment)
• Custom Teams: Custom pricing (2+ employees, 10% savings, end-to-end team management for startups and growing businesses)

Hire Invedus For

Businesses seeking hands-off payroll management with dedicated support, transparent communication, and the flexibility to scale resources as needed without hiring or firing headaches.

2. Deloitte

Deloitte is a global professional services giant and member of the Big Four consulting firms, generating $35.7 billion in U.S. revenues alone. Their HR and payroll services target organizations with complex mobile workforces requiring comprehensive compliance management and strategic HR alignment. Deloitte provides consulting-led payroll transformation rather than hands-on execution.

Capabilities Offered

• Payroll management and system interfaces
• Mobility compensation management and benefits administration
• HR workforce support for long-term, short-term, and remote workers
• Process assessment and technology recommendations
• Fully outsourced and co-sourced HR solutions
• Global payroll strategy development and vendor management

Payroll Model Followed

Deloitte assesses existing processes, then recommends cost-efficient solutions often supported by innovative technology, with flexible operational solutions including co-sourced models.

Pricing

• Average $137 per employee annually for comprehensive services
• Up to $971 per employee for companies with under 500 employees
• Enterprise engagements typically start at $50,000+ annually

Deloitte Vs. Invedus (Comparison with #1 Pick)

3. JustWorks

Justworks is a Professional Employer Organization (PEO) platform that simplifies payroll, benefits, HR, and compliance for small to mid-sized businesses through an intuitive, user-friendly interface. Known for transparent pricing and ease of use, Justworks handles 2-500 employees and operates on a co-employment model.

Capabilities Offered

• Automated payroll processing, tax filings, W-2, and 1099 generation
• Benefits administration including health, dental, vision, 401(k), workers’ comp, and EPLI
• Compliance support, Forms I-9 management, and harassment prevention training
• Contractor payments for domestic and international workers
• Time tracking add-on at $8/month per employee
• HR tools, including onboarding, PTO management, and document storage

Payroll Model Followed

PEO co-employment model bundling payroll, compliance, HR, and benefits with automated calculations, tax withholdings, and filings managed through their platform.

Pricing

• Payroll plan: $8/employee/month + $50 base fee (total $450/month for 50 employees)
• PEO Basic: $59/employee/month ($2,950/month for 50 employees)
• PEO Plus: $109/employee/month ($5,450/month for 50 employees)

JustWorks Vs. Invedus (Comparison with #1 Pick)

4. TriNet

TriNet is a comprehensive Professional Employer Organization (PEO) providing full-service HR solutions, including payroll, benefits, compliance, and risk mitigation for small to mid-sized businesses through a co-employment model. The company processed $73 billion in payroll in 2024 and specializes in industry-specific HR support across sectors like technology, healthcare, and finance.

Capabilities Offered

• Payroll processing and tax administration with direct deposit and electronic W-2 delivery
• Benefits administration through major carriers, including Kaiser, Blue Shield, Aetna, and UnitedHealthcare
• HR consulting, compliance support, and risk mitigation services
• Workers’ compensation, state unemployment insurance, and EPLI coverage
• Employee self-service portal, mobile app, and performance management tools
• Add-on features for contractor and international talent management

Payroll Model Followed

PEO co-employment model with per-employee-per-month (PEPM) pricing covering payroll processing, tax administration, benefits access, HR platform, and compliance support through dedicated industry teams.

Pricing

• $100-$140 per employee per month administrative fees
• Pricing starts at $80 per employee per month, according to some analyses
• Example: 20 employees at $150 PEPM = $3,000/month total

TriNet Vs. Invedus (Comparison with #1 Pick)

5. Insperity

Insperity is a top-tier HR solution offering both a Professional Employer Organization (PEO) model and an HR outsourcing (HRO) model without co-employment, designed to scale with small and midsize businesses. Founded in 1986, Insperity is one of the largest PEOs in the U.S. with a long track record and high client retention rates, distinguishing itself through strategic on-site HR services and local office presence.

Capabilities Offered

• Payroll processing, payroll tax filing, and direct deposit management
• Employee benefits administration, including health, dental, vision, and retirement plans
• On-site HR services, instructor-led training, and thousands of e-learning courses
• Talent management, compliance assistance, and risk mitigation support
• New HRScale solution, powered by Workday (launching Q1 2026), targeting the middle market
• Local office support in major metropolitan areas for in-person consultations

Payroll Model Followed

Strategic service model providing outsourced payroll, on-site HR consulting, compliance management, and benefits through co-employment or traditional HRO arrangements with dedicated account teams.

Pricing

• $150-$210 per employee per month (premium tier)
• Some sources cite $125-$167 per employee per month
• Approximately $230 per employee for one-year contracts reported by users

Insperity Vs. Invedus (Comparison with #1 Pick)

6. Bambee

Bambee is an HR outsourcing (HRO) solution that pairs small businesses with a dedicated HR manager, offering compliance support, policy creation, onboarding, and guided payroll, primarily focused on risk mitigation rather than full payroll execution. It caters to businesses with up to 500 employees and positions itself as an affordable alternative to hiring an in-house HR manager.

Capabilities Offered

• Guided payroll add-on with two-day direct deposit and automatic federal, state, and local tax handling
• HR policy creation, compliance audits, and HR Autopilot for automated policy management
• Employee onboarding, training, corrective action, and termination support
• Employee classification guidance and compensation law advisory
• Document storage and employee records management
• Benefits advisory via SimplyInsured partnership (not directly administered)

Payroll Model Followed

Guided payroll add-on model where businesses process payroll themselves through a platform walkthrough, supported by a dedicated HR manager for questions and compliance.

Pricing

• 1–4 employees: $299/month + $500 setup fee
• 5–19 employees: $399/month + $500 setup fee
• 20–49 employees: $699/month + $1,500 setup fee
• 50–70 employees: $1,299/month + $2,000 setup fee
• 71+ employees: $2,499/month + $2,500 setup fee

Bambee Vs. Invedus (Comparison with #1 Pick)

7. Workday

Workday is a cloud-based enterprise HCM and payroll platform historically designed for Fortune 500 companies, recently making efforts to move into the mid-market with revised pricing and faster implementations. Its payroll suite integrates directly with HR, finance, and workforce management in a single unified platform with AI-powered automation and global payroll capabilities across 180+ countries.

Capabilities Offered

• Automated payroll processing with multi-jurisdictional tax compliance and garnishment handling
• Real-time payroll reporting, analytics, and configurable dashboards
• Global payroll integration across 180+ countries via a certified partner network
• Time tracking, absence management, and workforce scheduling tools
• AI-driven employee self-service portal with mobile access
• Full HCM suite covering recruiting, onboarding, talent management, and benefits

Payroll Model Followed

Subscription-based enterprise software platform where businesses self-manage payroll through Workday’s system, supported by implementation partners and internal HRIS managers.

Pricing

• Under 500 employees: $150,000–$300,000/year
• 500–2,500 employees: $300,000–$500,000/year
• Implementation fee: ~100% of annual subscription cost (e.g., $500,000 implementation on $500,000 annual)

Workday Vs. Invedus (Comparison with #1 Pick)

8. Deel

Deel is a global HR and payroll platform trusted by 40,000+ companies, built to simplify hiring, paying, and managing contractors and employees across 150+ countries. Unlike traditional PEOs, Deel operates as a tech-first platform combining Employer of Record (EOR), contractor management, global payroll, and HR tools in one place, with no entity setup required.

Capabilities Offered

• EOR services covering full legal employment, local tax, payroll, and labor compliance in 150+ countries
• Contractor management with localized contracts, compliant payments in 150+ currencies, and invoice approvals
• Global payroll consolidation with multi-currency support and integrated reporting across distributed workforces
• US payroll covering all 50 states, including W-2, W-4, and 1099 filings
• PEO model offering shared payroll, benefits, and compliance for US-based teams
• HR tools, including onboarding workflows, benefits, equity, immigration, and background checks

Payroll Model Followed

Tech platform model where businesses self-manage payroll through Deel’s dashboard, with automated compliance, tax filings, and payments handled by the system.

Pricing

• EOR: from $599/employee/month
• Contractor Management: from $49/contractor/month
• Contractor of Record: from $325/contractor/month
• PEO: from $95/employee/month
• Global Payroll: from $29/employee/month

Deel Vs. Invedus (Comparison with #1 Pick)

9. CoAdvantage

CoAdvantage is a US-focused PEO serving over 4,500 clients across all 50 states, specializing in agile HR solutions for mid-market businesses. As a full-service PEO, it provides integrated payroll, benefits, compliance, and HR technology through a co-employment model designed to help growing businesses reduce administrative burden and scale efficiently.

Capabilities Offered

• Payroll processing and tax filing with time tracking and data management
• Fortune 500-style health, dental, vision, and retirement benefits at affordable group rates
• Risk mitigation, EPLI insurance, workers’ compensation, and compliance oversight
• All-in-one HCM platform with employee self-service and HR reporting tools
• Applicant tracking, learning management, and time & labor management tools
• Regional dedicated account teams offering proximity support across the US

Payroll Model Followed

Co-employment PEO model where CoAdvantage processes payroll, handles tax filings, and administers benefits while clients retain day-to-day workforce control.

Pricing

• $120–$180 per employee per month, depending on industry and service scope
• Some sources cite $115–$150 per employee per month, including dedicated HR consulting

CoAdvantage Vs. Invedus (Comparison with #1 Pick)

10. G&A Partners

Founded in 1995 and headquartered in Houston, G&A Partners has grown from a small accounting firm into one of the largest PEOs in the US, now serving businesses across all 50 states with over 700 employees. As a certified PEO, G&A specializes in helping small and mid-sized businesses manage payroll, benefits, compliance, and HR through a dedicated co-employment model with personalized service teams.

Capabilities Offered

• Payroll processing, time & attendance management, and payroll reporting
• Fortune 500-level health, dental, vision, and 401(k) benefits administration
• Risk management, workers’ compensation, EPLI insurance, and regulatory compliance
• Applicant tracking, learning management, and onboarding technology
• HR consulting and employee relations support via dedicated client advocates
• PEO, ASO (à la carte), and HCM self-service delivery models available

Payroll Model Followed

Per-employee-per-month (PEPM) co-employment model; dedicated service teams handle payroll, compliance, and benefits, with workers’ compensation and benefits billed separately.

Pricing

• PEPM fee structure: exact rates dependent on company size, industry, and services selected
• Average PEO: cost per employee approximately $1,395/year ($116/month)

G&A Partners Vs. Invedus (Comparison with #1 Pick)

Do You Need To Outsource Payroll in 2026?

In 2026, almost 45% businesses or more are outsourcing payroll. Some surveys suggest that more than 85% of businesses are ready to go for payroll outsourcing. But why would you choose to outsource payroll when hiring 1 payroll officer in the US is enough? 

It is a better practice to outsource payroll and recurring tasks to outsourcing agencies like Invedus, so your team has more space for core business tasks, like building client relationships, developing new products, scaling operations, and improving customer experience.

These are the signs that you should start payroll outsourcing:

• Your payroll is eating into strategy time. If your HR or finance team spends more than 5 hours per pay cycle on payroll admin, that’s time stolen from decisions that actually grow the business.
• You’ve had at least one compliance scare. Tax law changes, state-specific filing requirements, and ACA updates shift constantly. One missed deadline can trigger audits, penalties, and back payments.
• You’re paying for a full-time role to do a part-time job. The average US payroll officer costs $55,000–$75,000/year in salary alone, before benefits, PTO, and overhead. Outsourcing delivers the same output at 60 to 70% less.
• Your team size is changing. Whether you’re hiring fast or scaling down, fluctuating headcount makes in-house payroll management error-prone and inefficient.
• You’re expanding into new states or countries. Every new jurisdiction adds a new tax code, new filing rules, and new compliance risk, all of which an outsourced provider handles automatically.
• Errors are slipping through. Payroll mistakes damage employee trust fast. Outsourcing to a dedicated professional reduces error rates and ensures on-time, accurate payments every cycle.
• You want better data without building infrastructure. Outsourced payroll providers offer real-time reporting, analytics, and accounting software integration, without the cost of building it in-house.

Average Cost and Time Savings By Payroll Outsourcing Providers in 2026

Outsourcing payroll isn’t just an operational decision, it’s also a financial one. When you factor in salary, benefits, software licenses, training, and compliance penalties, the true cost of managing payroll in-house far exceeds what most businesses expect. Here’s how leading providers stack up on cost savings compared to a fully loaded in-house payroll function.

In-house estimate based on $55,000–$75,000 annual salary + 30% overhead for benefits, software, and compliance tools.

Beyond cost, time is the hidden currency of payroll management. Every hour your team spends on payroll calculations, tax filings, and compliance updates is an hour not spent on growth. The table below estimates average weekly time burden across providers, factoring in platform complexity, automation levels, and the degree of hands-on involvement required from your internal team.

Note: Time estimates reflect internal team hours required per pay cycle, not provider processing time.

Conclusion

Payroll outsourcing is becoming quite common as the benefits outweigh the risks. But choosing the right provider for outsourcing payroll services is the real challenge. Luckily, our list helps you narrow down your search and onboard one of the best payroll outsourcing service providers.

However, if you still find it difficult, we recommend that you contact every agency that falls within your budget. Just have a clear sense of requirements, and be sure to evaluate your selected companies in terms of value, not just testimonials.

If you want to start payroll outsourcing, however, you can contact Invedus. Begin by getting in contact with one of our experts, here.