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Employers and payroll providers abbreviate freely, and the same code can mean different things on different stubs — MED is Medicare on one and medical insurance on another. The section a line sits in (earnings, taxes or deductions) is usually the tiebreaker. Find a code below, or use your browser's search for the exact letters on your stub.

Earnings codes

The top half of a pay stub: what you were paid, and for what.

REG · REG PAY · BASE · SALRegular pay

Pay for ordinary hours: hours worked times your hourly rate, or one pay period's share of your salary. Everything else in the earnings section is added on top of it.

Hourly pay stub checklist →

BON · BONUS · COMM · SUPPBonus, commission and other supplemental wages

The IRS calls these supplemental wages. When they're paid separately from regular wages, the employer may withhold federal income tax at a flat 22% (37% on supplemental wages over $1 million in a year) instead of using your W-4, which is why a bonus check can look heavily taxed.

Source: IRS Publication 15 (Circular E), Employer's Tax Guide · How bonuses are withheld →

GTL · GTLI · IMP LIFEGroup-term life insurance (imputed income)

Not cash. When an employer provides group-term life coverage above $50,000, the cost of the coverage over that amount counts as taxable wages and is subject to Social Security and Medicare. It's added to your earnings and then taken back out, so it raises your taxes without changing your net pay otherwise.

Source: IRS Publication 15-B (2026), Employer's Tax Guide to Fringe Benefits

Federal tax codes

Withheld from every employee paycheck in every state.

FICAFICA (Social Security + Medicare combined)

Federal Insurance Contributions Act. Some stubs show one FICA line instead of separate Social Security and Medicare lines; for most employees it's 7.65% of pay (6.2% + 1.45%).

Source: IRS Publication 15 (Circular E), Employer's Tax Guide

State and local codes

These depend on where you live and work — see the state pages for each state's exact rules.

SIT · SWT · ST TAX · STATE WHState income tax withholding

Withheld under your state's own formula. Nine states — Alaska, Florida, Nevada, New Hampshire, South Dakota, Tennessee, Texas, Washington and Wyoming — have no tax on wages, so this line won't appear there.

State and local taxes on a pay stub →

SDI · CASDI · TDI · DBL · VPDIState disability insurance

A payroll premium that funds short-term disability benefits in states that have a program — California (SDI, 1.30% of all wages in 2026), New Jersey (TDI), New York (DBL), Rhode Island (TDI) and Hawaii (TDI). VPDI on a California stub means the employer runs an approved voluntary plan instead of the state plan.

Source: California EDD — SDI Contribution Rate, CY 2026

PFL · FLI · PFML · FAMLI · WA PFMLPaid family and medical leave

Premiums for a state paid-leave program: New York PFL, New Jersey FLI, Washington and Massachusetts PFML, Colorado FAMLI, Paid Leave Oregon, CT Paid Leave, and Minnesota Paid Leave from 2026. Rates and the employee/employer split differ by state.

Pay stub requirements by state →

WA CARES · LTC · LTSSWA Cares Fund

Washington's long-term care program: 0.58% of all wages, with no cap, unless the employee has an approved exemption.

Source: WA Cares Fund — Employer information

LIT · LOC · CITY · LST · SCH DISTLocal income and school district taxes

City, county or school-district taxes withheld in some places — New York City and Yonkers, Philadelphia and other Pennsylvania localities (including the Local Services Tax), Ohio municipalities and school districts, Maryland counties, and others. They're separate lines from state tax.

State and local taxes on a pay stub →

Pre-tax deduction codes

Taken out before income tax is figured, which lowers your taxable wages.

401K · 401(K) · 403B · 457 · RETRetirement plan contributions

Traditional 401(k), 403(b) and 457 deferrals reduce the wages federal income tax is figured on, but Social Security and Medicare still apply to them. The 2026 employee limit is $24,500, plus an $8,000 catch-up from age 50 ($11,250 for ages 60–63).

Source: IRS — 401(k) limit increases to $24,500 for 2026 · 401(k) on a pay stub →

HSAHealth savings account

Contributions made through payroll under a cafeteria plan are free of federal income tax, Social Security and Medicare. The 2026 limits are $4,400 for self-only coverage and $8,750 for family coverage, counting employer contributions.

Source: IRS Revenue Procedure 2025-19 (2026 HSA limits)

After-tax deduction codes

Taken out after taxes are figured, so they don't change your withholding.

UNION · DUES · LTD · STD · ADV · LOANUnion dues, disability insurance, advances and loans

Other deductions you've authorized: union dues, voluntary long- or short-term disability premiums, repayment of a pay advance or a 401(k) loan. Most states require written authorization for deductions like these.

Pre-tax vs. post-tax deductions →

Totals and column headings

The labels that tie the numbers together.

GROSS · NET · NET PAY · TAKE HOMEGross pay and net pay

Gross is everything earned before deductions; net is what's left after taxes and deductions — the amount actually paid to you.

Gross pay vs. net pay →

YTD · CUR · CURRENTYear to date and current

Current is this pay period; YTD is the running total since January 1. YTD figures are what lenders check and what should match your W-2 at year end.

What YTD means on a pay stub →

EE · EREmployee and employer

EE marks the employee's share of a tax or benefit; ER marks the employer's. Only EE amounts come out of your pay.

DD · DIR DEP · CHKDirect deposit and check

How net pay was delivered — to which account, or by paper check. Split deposits show one line per account.

Direct deposit and your pay stub →

Codes that depend on your state

State taxes, disability insurance and paid-leave premiums differ by state. Each state pay stub page lists which ones apply, at what rate, with official sources. To see what comes out of your own pay, try the free paycheck calculator. To see the codes in place, the pay stub example walks through a sample stub line by line.