Paystub Basics

Paystub Abbreviations Explained: Every Code on Your Pay Stub (2026)

By Maya Chen, Payroll Analyst
Paystub Abbreviations Explained: Every Code on Your Pay Stub (2026)

Why Paystubs Are Full of Abbreviations

Federal and state payroll regulations require dozens of separate line items on every paycheck. To fit them in a printable column, payroll software uses 3–5 letter codes. Below is the complete reference — bookmark this page if you ever stare at a stub and wonder what "OASDI SS EE" actually means.

Federal Tax Abbreviations

CodeFull NameWhat It Is
FITFederal Income TaxMoney withheld for your annual 1040 liability
FEDFederal Tax (alt)Same as FIT, just a shorter code
FWTFederal Withholding TaxSame as FIT/FED
FICAFederal Insurance Contributions ActCombined Social Security + Medicare (7.65% total)
SS / OASDIOld Age, Survivors, Disability Insurance6.2% of wages up to $176,100 in 2026
MED / MEDFICAMedicare1.45% of all wages, +0.9% over $200k
FUTAFederal Unemployment Tax ActPaid by employer only (you won't see it deducted)
AEICAdvance Earned Income CreditRare; advance refund payment

State and Local Tax Abbreviations

CodeMeaning
SITState Income Tax
SWTState Withholding Tax (same as SIT)
SDIState Disability Insurance (CA, NJ, NY, RI, HI, PR)
SUIState Unemployment Insurance
LIT / LWTLocal Income Tax (city/county)
PFLPaid Family Leave (CA, NY, NJ, WA, MA)

Earnings Abbreviations

CodeMeaning
REGRegular hours pay
OT / O/TOvertime (1.5× regular rate over 40 hrs/wk per FLSA)
DTDouble time
HOLHoliday pay
VAC / PTOVacation or Paid Time Off
SICKSick leave pay
BONUSBonus or commission
RETRORetroactive pay (back pay for a raise applied late)
TIPSReported tip income
COMMCommission
SHFT DIFFShift differential (night/weekend premium)

Deduction Abbreviations

CodeMeaning
401KTraditional pre-tax retirement contribution (2026 limit: $23,500)
ROTHRoth 401(k) after-tax retirement contribution
HSAHealth Savings Account (pre-tax, paired with HDHP)
FSAFlexible Spending Account (pre-tax, use-it-or-lose-it)
HEALTH / MEDEmployee share of medical insurance premium
DENTDental insurance premium
VISVision insurance premium
LIFEGroup term life insurance premium (see GTL below)
GTLGroup Term Life (employer-paid coverage over $50k, taxable)
LTD / STDLong-term / Short-term Disability premium
UNIONUnion dues
GARNWage garnishment (court-ordered)
CSEChild Support Enforcement
LEVYIRS or state tax levy

Cumulative Total Abbreviations

CodeMeaning
YTDYear-to-Date (Jan 1 → current pay period)
MTDMonth-to-Date
QTDQuarter-to-Date (used for IRS Form 941 reconciliation)
PRIORPrior pay period balance
CURRCurrent pay period

Identity & Reference Abbreviations

CodeMeaning
EINEmployer Identification Number (your company's 9-digit IRS ID)
SSNSocial Security Number (usually masked: XXX-XX-1234)
EEEmployee (e.g., "SS EE" = employee's share of SS)
EREmployer (e.g., "SS ER" = employer's matching share)
EXEMPTNumber of W-4 allowances (legacy term; replaced in 2020)
MAR / MFJ / SMarital filing status (Married, Married Filing Jointly, Single)

Less Common Codes You Might See

  • IMP — Imputed income (taxable value of a non-cash benefit like GTL or domestic partner coverage)
  • EBPP — Employee Business Premium Pay
  • CASDI — California State Disability Insurance specifically
  • NYSDI — New York State Disability Insurance
  • SECT 125 — Pre-tax cafeteria plan deductions (umbrella term for HSA/FSA/medical premiums)
  • K — 401(k), sometimes shortened
  • PEN — Pension contribution
  • STIP — Stipend
  • WC — Workers' Compensation (employer-paid; rarely on employee stub)

How to Read a Mystery Code

If you see something not on this list:

  1. Check the back of the stub — many employers print their own legend
  2. Ask payroll directly — they're required to explain any deduction under most state wage statement laws
  3. Compare to a prior stub — if it appeared once, it might be a one-time adjustment (RETRO, BONUS reversal, etc.)
  4. Check your benefits portal — voluntary deductions (gym, parking, charity) often use custom 3-letter codes set by HR

Federal Standard

The U.S. Department of Labor maintains the Wage and Hour Division fact sheets covering required paystub disclosures. There's no federal abbreviation standard — each payroll system picks its own — but the categories above are universal.

Build a Stub With Clear Labels

If you're an employer, freelancer, or self-employed worker who wants every line item spelled out clearly, PayStub LLC's generator uses full descriptive labels alongside the standard codes, so anyone reviewing your stub (lender, landlord, IRS auditor) reads it in seconds.

Bottom Line

Three-letter codes look intimidating but cover only about 40 common categories. Federal taxes (FIT, FICA, OASDI, MED), state taxes (SIT, SDI, SUI), earnings (REG, OT, HOL), deductions (401K, HEALTH, GTL), and totals (YTD, MTD) account for 95% of what you'll ever see. The rest are employer-specific add-ons.

Frequently Asked Questions

What does FICA mean on my paystub?

FICA (Federal Insurance Contributions Act) is the combined Social Security (6.2%) and Medicare (1.45%) tax — 7.65% total of your gross wages, capped on the Social Security portion at the 2026 wage base of $176,100.

What's the difference between OASDI and FICA?

OASDI is the Social Security portion of FICA. FICA = OASDI (6.2%) + Medicare (1.45%). Some paystubs label them separately, others combine them under FICA.

What does EE and ER mean on a paystub?

EE = Employee share, ER = Employer share. You'll see this on FICA and benefits lines where both you and your employer contribute, like SS EE (your 6.2%) and SS ER (employer's matching 6.2%).

What is GTL on my paystub?

GTL = Group Term Life insurance. If your employer provides over $50,000 in life coverage, the IRS taxes the excess as imputed income — that's what GTL represents.

What does YTD mean?

YTD = Year-to-Date — the running total of each line item from January 1 of the current calendar year through the end of this pay period.

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