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Paystub Codes Explained: Complete List of Abbreviations [2026]

Decode your paystub. Complete guide to common pay stub codes: FIT, OASDI, MED, SIT, YTD, and more. Understand your paycheck deductions.

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Your paystub is more than just a check—it's a detailed receipt of your earnings and taxes. However, space constraints often force payroll companies to use cryptic abbreviations. This guide translates the most common codes found on US paystubs so you know exactly where your money goes.

Important: Always review your paystub codes carefully each pay period. Catching a deduction error early can save you from tax headaches at the end of the year.

Tax Codes & Abbreviations

These codes represent mandatory government deductions. They are usually the largest deductions on your paycheck and are required by federal, state, or local laws.

CodeFull NameDescription
FIT / FITWFederal Income Tax WithheldTax withheld for the IRS based on your W-4.
OASDI / SSOld-Age, Survivors, and Disability InsuranceSocial Security tax (currently set at 6.2%).
MED / MCAREMedicareMedicare tax (currently set at 1.45%).
FICAFederal Insurance Contributions ActCombined Social Security and Medicare taxes.
SIT / SITWState Income Tax WithheldIncome tax deducted for your specific state.
LIT / LOCALLocal Income TaxCity, county, or municipality level taxes.
SDI / CASDIState Disability InsuranceDisability insurance (required in specific states like CA).
FLIFamily Leave InsurancePaid family leave funding (required in states like NJ, NY).

Benefit & Deduction Codes

These are often voluntary deductions for benefits you've enrolled in through your employer, such as health insurance premiums or retirement plan contributions.

CodeFull NameDescription
401k / RET401(k) RetirementPre-tax retirement contribution to your employer-sponsored plan.
DENTDental InsurancePremium deducted for dental coverage.
VISVision InsurancePremium deducted for vision coverage.
MED / HLTHMedical / Health InsurancePremium deducted for general health insurance.
HSAHealth Savings AccountPre-tax contribution to a Health Savings Account.
FSAFlexible Spending AccountPre-tax funds set aside for qualifying medical expenses.
LTDLong Term DisabilityInsurance premium for long-term injury or illness coverage.
STDShort Term DisabilityInsurance premium for short-term injury or illness coverage.
GRP LIFEGroup Life InsuranceLife insurance coverage provided by your employer.

Earnings & Pay Types

These codes explain the different ways you earned money during the specific pay period.

CodeFull NameDescription
REGRegular PayStandard hourly wages or salary earnings.
OTOvertimePay for hours worked over 40 in a week (usually calculated at 1.5x your regular rate).
HOLHoliday PayCompensation for working on company-recognized holidays.
VACVacation PayPaid time off used for vacation.
SICKSick PayPaid time off used for illness or medical appointments.
BONBonusPerformance, sign-on, or seasonal bonus payouts.
COMMCommissionEarnings based on sales performance or quotas.
TIPSTipsGratuities received and reported to your employer.

Common Questions About Paystub Codes

What is YTD?

YTD stands for Year-to-Date. It shows the total amount for a specific category (like Gross Pay, Federal Tax, or 401k contributions) from the beginning of the calendar year up to the current pay period. This number is crucial for verifying your annual income when applying for loans or apartments.

Why do I see FICA and OASDI?

Sometimes these taxes are listed separately, and sometimes they are combined. FICA is the federal law that mandates the tax. OASDI (Social Security) and MED (Medicare) are the specific taxes mandated by FICA. Seeing both FICA-SS and FICA-MED on the same paystub is completely normal.

What is IMP?

IMP usually stands for Imputed Income. This is the value of non-cash benefits (like group term life insurance over $50,000) that the IRS considers taxable income. It adds to your taxable wages so the government can tax it, but it doesn't actually increase your take-home cash.

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