Payroll Compliance Checklist: The Complete Guide for U.S. Employers in 2026

This guide notes that 53% of companies have incurred payroll penalties within five years, often due to missed deadlines, and that IRS penalties escalate from 2% to 15% based on deposit lateness with roughly 1 in 6 companies facing payroll-related litigation annually. It introduces five key U.S. payroll laws and stresses organizing compliance checklists by frequency: new hire setup, each pay cycle, quarterly, and year-end requirements.