Payroll Tax API

4,246 US payroll tax jurisdictions in one API call

What it does

US payroll tax data is fragmented across IRS, 50 state agencies, and thousands of local jurisdictions. Payroll Tax API covers 4,246 jurisdictions: federal income brackets, FICA, FUTA, all 50 states + DC, 200+ counties, 3,278 cities, and 713 school districts. One API call returns all applicable rates stacked. Effective-date versioned. Free tier: 1,000 req/month, no credit card.

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