Decode paystub codes and paycheck abbreviations: FICA HI, FIT/FWT, SIT, RES SIT, OASDI, MEDI, YTD, 401(k), deductions, taxes, and earnings.
This free guide is part of the BestPaystubGen resource library — comprehensive, expert-written content covering paystub generation, payroll best practices, tax calculations, IRS withholding references, W-2 vs 1099 differences, FICA, federal and state withholding, and proof-of-income documentation for the 2026 tax year.
This paystub generator is a simulation/mockup tool for personal record-keeping and verification purposes only.