The most common payroll services for small businesses are Gusto, QuickBooks Payroll, ADP Run, and Paychex Flex. They all cover the fundamentals including wage calculations, tax withholding, direct deposit, quarterly filings, and year-end W-2s.

For businesses with fewer than 20 employees, Gusto and QuickBooks Payroll tend to be the most popular choices. They’re affordable, relatively easy to set up, and integrate with common accounting software. Gusto has a friendlier interface and better employee self-service features. QuickBooks Payroll works seamlessly if you’re already using QuickBooks for your small business bookkeeping.

ADP and Paychex are more established names with broader service offerings. They work well for businesses that expect to grow quickly or need HR features beyond basic payroll. Pricing is less transparent and often requires a sales conversation.

But here’s what most business owners don’t think about when asking this question. The software is only part of the equation. The real decision is whether you want to run payroll yourself or have someone else handle it entirely.

Running payroll yourself means you’re responsible for making sure everything is correct. You enter the hours, approve the runs, and deal with any issues that come up. The software does the calculations, but you own the compliance. If something goes wrong with tax filings or an employee’s withholding, it’s your problem to fix.

Full-service payroll means someone else handles setup, processing, tax deposits, filings, and troubleshooting. You approve timesheets and employees get paid. This costs more than DIY software but eliminates the mental load of tracking deposit deadlines and quarterly filings.

The best choice depends on your situation. If you have three employees, straightforward pay structures, and don’t mind spending 30 minutes on payroll every two weeks, Gusto or QuickBooks Payroll will serve you well. If you’d rather not think about payroll at all, or you have complexities like multiple pay rates, commissions, or tip reporting, outsourcing often makes more sense.

One thing that doesn’t vary. Whatever you choose, make sure it integrates with your accounting system. Payroll data that doesn’t sync with your books creates reconciliation headaches that waste time every month.