YTD meaning on a paycheck: what year to date shows

What the YTD column on a pay stub shows

Most pay stubs have two columns for each line: Current (this paycheck) and YTD (every paycheck since January 1). You will see YTD totals for gross pay, each tax, each deduction and net pay. Payroll YTD runs on the calendar year even if the business uses a different fiscal year, because Forms W-2 cover January to December.

Your last stub of the year is close to your Form W-2, but box 1 wages are usually lower than YTD gross because pretax deductions, such as traditional 401(k) contributions, are left out.

Example: YTD after 20 paychecks

An employee earns $52,000 a year, paid biweekly (26 checks), with no pretax deductions. By the 20th paycheck:

Where YTD changes your paycheck

• Social Security cap. On a $260,000 salary paid biweekly ($10,000 a check), YTD reaches $180,000 after 18 checks. Only $4,500 of check 19 is taxed ($279 withheld), and checks 20 to 26 have no Social Security at all, so net pay rises late in the year. Medicare has no cap. The 2027 base is $192,300 (SSA).
• 401(k) limit. Payroll uses YTD deferrals to stop contributions at $24,500 for 2026, plus $8,000 catch-up at age 50 or older (IRS).
• Employer wage bases. FUTA applies to the first $7,000 of YTD wages per employee, and each state has its own SUTA base. See 2026 SUTA wage bases by state.

How these taxes fit together is in what FICA covers.

When YTD numbers look wrong

A frequent cause is a mid-year change of payroll provider. The new provider has to load each employee's YTD wages and taxes from the old one, or the Social Security cap, 401(k) limit and W-2 will all be off. Ask for a YTD import and check the first stub line by line. Year-end checks are in the payroll year-end checklist, and our payroll software comparison notes which providers handle mid-year moves.