YTD on a pay stub stands for year-to-date: the running total of your earnings, taxes and deductions from the first payday of the calendar year through the current paycheck. The "current" column shows this paycheck alone; the YTD column adds this paycheck to every one before it in the same year.
That's the short answer to the YTD meaning on a pay stub. The longer answer is that the YTD column is one of the most useful things on your stub, because it lets you check your pay, track contribution limits and see why some deductions stop partway through the year.
Current vs. YTD: How the Columns Work
Most pay stubs list each item twice. "Current" (sometimes "This Period") is the amount for this pay period. "YTD" is the total so far this year. Each payday, the new current amount is added to the previous YTD total.
YTD totals reset to zero with the first paycheck of each calendar year, based on the date you're paid, not the dates you worked. A paycheck for late-December work that you receive in early January counts toward the new year's YTD. That's also the date rule your Form W-2 follows.
If you start a new job mid-year, your YTD starts at zero with that employer. Your previous employer's earnings don't carry over to the new stub, even though they count toward your yearly tax picture.
Reading YTD Numbers: A Worked Example
Here's an estimate for a single filer in Arizona earning $85,000 a year, paid biweekly, contributing 5% to a traditional 401(k). This is their 10th paycheck of the year, figured with our paycheck calculator:
| Item | Current | YTD (10 paychecks) |
|---|---|---|
| Gross pay | $3,269.23 | $32,692.30 |
| 401(k) | $163.46 | $1,634.60 |
| Federal income tax | $343.65 | $3,436.50 |
| Social Security | $202.69 | $2,026.90 |
| Medicare | $47.40 | $474.00 |
| Arizona income tax | $69.62 | $696.20 |
| Net pay | $2,442.41 | $24,424.10 |
When pay is the same every period, each YTD figure should equal the current amount times the number of paychecks so far. If it doesn't, something changed: a raise, a bonus, overtime, a new deduction, or an error. Real stubs rarely line up this neatly, because of rounding, overtime and benefit changes, but the logic is the same. You can model your own pay in the Arizona paycheck calculator or any state calculator.
Taxable wages YTD
Many stubs also show YTD federal taxable wages, which may be lower than YTD gross. In the example, federal taxable wages exclude the 401(k) contribution. Social Security and Medicare wages don't exclude it, so they can be higher than federal taxable wages. Our guide on how to read your pay stub explains each section.
Why YTD Explains Mid-Year Paycheck Changes
Several payroll rules depend on how much you've earned or contributed so far in the year. Your employer's payroll system uses your YTD totals to apply them.
Social Security wage base
Social Security tax of 6.2% applies only to the first $184,500 of wages in 2026. Once your YTD Social Security wages reach that amount, the deduction stops for the rest of the year, and your net pay goes up.
Take a single filer in Colorado earning $210,000, paid biweekly. Each paycheck is $8,076.92, and 6.2% of that is about $500.77. After 22 paychecks, YTD wages are $177,692.24. The 23rd paycheck reaches the $184,500 cap, so Social Security applies only to the remaining $6,807.76 (about $422.08), and the last three paychecks of the year have no Social Security tax at all. Total Social Security for the year is the maximum of about $11,439.
Our calculator spreads that yearly total evenly, showing $439.96 per paycheck for this worker. On a real stub, you'd see the front-loaded pattern instead. The Social Security wage base guide covers this in more detail, and the Colorado paycheck calculator shows the full estimate.
Additional Medicare Tax
Employers must start withholding the extra 0.9% Additional Medicare Tax once your YTD wages from that employer pass $200,000. For the Colorado worker above, that happens on the 25th paycheck, when YTD wages go from $193,846 to $201,923. Your actual liability depends on your filing status and is settled on your tax return.
401(k) contribution limit
For 2026, you can defer up to $24,500 into a 401(k), 403(b) or 457 plan, plus catch-up contributions if you're 50 or older. Many payroll systems stop your contributions automatically when your YTD deferrals reach the limit. If you change jobs, the new employer's system doesn't know what you put in at the old job, so you need to track your combined YTD contributions yourself. See 401(k) contribution limits for 2026.
How to Use YTD to Catch Problems
- Compare against your offer. Divide YTD gross by the number of paychecks so far. It should be close to your salary divided by your pay periods.
- Check benefit deductions. If your HSA or 401(k) YTD is behind where it should be, a contribution may have been missed.
- Spot double deductions. A YTD jump bigger than the current amount can mean a correction or a duplicate.
- Estimate your year-end taxes. YTD federal withholding, compared against your expected tax, helps you decide whether to adjust your W-4. The IRS Tax Withholding Estimator asks for these YTD numbers.
Your final stub of the year is a good preview of your W-2. Box 1 of the W-2 should generally match YTD federal taxable wages, not YTD gross.
Frequently Asked Questions
What does YTD mean on a pay stub?
Year-to-date. It's the total of each item, such as gross pay, taxes and deductions, from the first paycheck of the calendar year through the current one.
Why is my YTD gross different from my W-2?
Your W-2 Box 1 shows federal taxable wages, which exclude pre-tax deductions like a traditional 401(k) and health premiums. Your YTD gross includes them.
Does YTD reset when I change jobs?
Yes, each employer tracks YTD separately. Your earnings and withholding from both jobs still count on your tax return.
Why did my Social Security deduction disappear?
Your YTD Social Security wages probably reached the $184,500 wage base for 2026. The deduction resumes with the first paycheck of the next year.
Sources
- Social Security Administration: Contribution and Benefit Base
- IRS Topic 560, Additional Medicare Tax
- IRS: 401(k) limit increases to $24,500 for 2026
- IRS Publication 15 (Circular E), Employer's Tax Guide
Run the numbers for your state
Written and checked against IRS, Social Security Administration and state tax agency publications for the 2026 tax year. General information, not tax, legal or financial advice. Read our editorial policy, calculation methodology and sources.