Payroll processing isn't cheap, but the cost varies wildly depending on your company size, employee count, and complexity. Understanding what you'll actually pay—and what drives those prices—helps you avoid overspending on features you don't need or underfunding critical compliance work. Let's break down the real numbers.
How Much You'll Pay
Most small businesses with fewer than 50 employees spend between $1,500 and $5,000 per year on payroll processing through a third-party provider. Mid-market companies (50–500 employees) typically budget $5,000 to $15,000 annually. Large enterprises with complex structures often spend $20,000+ per year, though some negotiate custom pricing.
If you run payroll entirely in-house with software (like QuickBooks Payroll or ADP Run), you're looking at $100–$500 per month depending on the platform and employee count. Full-service providers that handle tax filing, compliance, and direct deposit charge more but save you time and reduce liability risk.
The Main Cost Drivers
Per-employee fees are how most providers price their services. Expect $2–$10 per employee per payroll run (typically bi-weekly or monthly). A company with 30 employees paying bi-weekly might spend $120–$600 per paycheck, or $3,000–$15,000 annually just on processing fees.
Additional services add up quickly:
- Tax filing and reporting: $200–$1,000 per state annually
- Direct deposit setup: $0–$500 one-time (often included)
- Payroll tax penalties and correction filing: $300–$1,500
- Year-end W-2 and 1099 preparation: $500–$2,000
- Garnishment or court order handling: $50–$200 per case
- Integration with your accounting software: $0–$500 one-time
Multi-state compliance multiplies costs. If you have employees in five states, expect an extra $1,000–$5,000 annually for state-specific tax handling and filings.
DIY vs. Outsourced: A Cost Comparison
Handling payroll yourself with basic software costs less upfront but demands time and carries risk. You'll pay:
- Software license: $100–$300/month
- Your time (or a bookkeeper's): 5–10 hours per month
- Potential penalties for mistakes: $200–$10,000+
Outsourcing to a payroll processor eliminates the time burden and shifts compliance liability to them. You're paying for expertise and insurance, not just software. For most businesses with more than 20 employees, outsourcing actually saves money when you factor in labor costs and avoided penalties.
What to Compare When Shopping
Don't just look at the per-employee fee. Ask these questions:
- What's included in the base price? Tax deposits, filings, and support vary wildly.
- How do they charge for states? Some bundle all states into the fee; others charge per state.
- Is there a per-check fee or monthly minimum? Some providers charge both, making small payrolls expensive.
- What happens if you have a question at 5 p.m. on Friday? Emergency support matters.
- Do they integrate with your current accounting software? Integration failures can cost thousands in manual reconciliation.
- What's their penalty warranty? Reputable processors cover their mistakes; low-cost providers often don't.
Hidden Costs to Watch
Many payroll companies advertise low base fees but charge separately for:
- Corrections and amendments ($25–$100 each)
- Wage attachment or garnishment processing ($50–$150 per case)
- Setup or onboarding fees ($200–$500)
- Same-day payroll processing ($25–$50 per request)
- Reporting or audit support ($150–$400 per hour)
Read the fine print or you'll be shocked at invoice time.
The Mercoly Advantage
Comparing payroll processors manually takes hours and generates conflicting information. Mercoly lets you review trusted payroll processing providers side-by-side, see real pricing, and read verified customer feedback—all in one place. You'll find the right fit faster and avoid overpaying.
Frequently Asked Questions
Q: Why do small businesses with 5–10 employees sometimes pay $500/month for payroll? A: They're often hitting per-check minimums or monthly fees that make low-volume payroll expensive; outsourcing becomes cost-effective around 15–20 employees.
Q: Is payroll software with an accountant cheaper than a full-service processor? A: It depends on your accountant's hourly rate and how complex your payroll is, but most small businesses save money ($200–$500/month) using a dedicated processor.
Q: Can I switch payroll processors mid-year without penalties? A: Most allow it, but verify your contract for early termination clauses and request a data file export to ensure a clean transition.
Find the payroll processor that fits your budget and business size with Mercoly's side-by-side comparisons.