Pay stub basics
What does YTD mean on a paycheck?
The second column on every line of a pay stub is the one most people ignore. It is also the one that catches errors.
The short answer
YTD means year to date - the running total of that line since the first paycheck dated in January. Each line of a stub carries two numbers: what this period did, and what the year has done so far. The year-to-date column is what a W-2 is built from, what a lender asks for, and the fastest way to spot a payroll error, because a total that moves by the wrong amount is easier to see than a rate that is slightly off.
What resets, and when
| Total | Resets on | Why it matters |
|---|---|---|
| Gross pay, taxes, deductions | The first check dated in January | Tax years are calendar years, so the pay date rules - work done in December that is paid in January counts in the new year |
| Social Security wages | 1 January | The $184,500 cap starts again, so the 6.2% line returns for high earners |
| 401(k) and HSA contributions | 1 January | The annual IRS limits are calendar-year limits, whatever your plan year is |
| FSA elections | The plan year, not 1 January | A stub may show an FSA total that does not line up with the other columns |
| Vacation and PTO balances | Whenever the policy says | Often an anniversary date or a fiscal year; it is not a tax figure at all |
| Everything, at a new employer | Your first check there | The new payroll has no knowledge of the old one |
Three checks the column makes easy
1. Is this period right?
Subtract the previous stub's year-to-date from the current one. The difference has to equal this period's amounts, line by line. Anything that does not reconcile is a correction, and payroll should be able to say which period it relates to. This is the first move when a paycheck comes in smaller than usual.
2. Am I on track for the year?
Divide the year-to-date federal income tax by the number of checks so far, then multiply by your total checks for the year. Compare that against what you will actually owe. Doing it in June leaves enough paychecks to fix a gap through line 4(c) of a new W-4; doing it in December does not. The W-4 calculator takes the year-to-date figure and the number of checks you have left and works out the entry for you.
3. Will the W-2 match?
The final stub of the year is the W-2 in draft. Check it before January, when a correction is still simple.
| W-2 box | Comes from the final stub | Usually differs from YTD gross by |
|---|---|---|
| Box 1 - wages, tips, other compensation | YTD gross minus pre-tax deductions | Traditional 401(k), health premiums, HSA and FSA contributions |
| Box 3 - Social Security wages | YTD gross minus Section 125 items, capped | Health premiums and HSA only; capped at $184,500 for 2026 |
| Box 5 - Medicare wages | YTD gross minus Section 125 items | Health premiums and HSA only, with no cap |
| Box 2 - federal income tax withheld | YTD federal income tax | Nothing - these should match exactly |
| Box 12 code D | YTD traditional 401(k) | Nothing - these should match exactly |
Box 1 being lower than your salary is expected, not an error. Boxes 3 and 5 being higher than box 1 is also expected.
Why the totals disagree with each other
A stub can show four different wage totals at once - gross, federal taxable, Social Security and Medicare - and all four can be correct. The reason is that different deductions escape different taxes: a traditional 401(k) reduces federal taxable wages but not FICA wages, while Section 125 health premiums reduce both. The pre-tax versus post-tax guide has the full table, and the FICA guide covers why the two payroll taxes behave differently.
Using year-to-date pay as proof of income
Lenders and landlords generally ask for the two most recent stubs. What they take from them is the year-to-date gross, annualized, and a check that the current period is consistent with it - which is why a stub with an unusual bonus in it can help or hurt depending on the underwriter. If you need the annual figure the other way round, from a take-home number, the net-to-gross calculator solves for the salary that produces a given net pay.
FAQ
Frequently asked questions
What does YTD mean on a pay stub?+
Year to date: the running total of that line since the first paycheck of the calendar year. Every earnings line, tax line and deduction line has one, next to the current-period amount. It resets to zero on the first check dated in January, regardless of when your own work year or plan year starts.
Is YTD gross pay the same as the wages on my W-2?+
Usually not, and that is normal. Box 1 of a W-2 shows federally taxable wages: YTD gross minus pre-tax deductions such as a traditional 401(k) and Section 125 premiums. Boxes 3 and 5 show Social Security and Medicare wages, which are higher, because 401(k) money still pays FICA. Match the final stub of the year against the right box rather than against gross.
Does YTD reset when I change jobs?+
Yes. A new employer starts your year-to-date totals at zero because it has no record of what the previous one paid or withheld. That is what causes the classic Social Security overpayment: two employers can each withhold up to the $184,500 cap in the same year. The excess is recovered as a credit on your Form 1040.
What is YTD net pay used for?+
It is the fastest proof of income for a mortgage application, a rental application or a loan, because it shows both the total and the pattern. Lenders normally ask for the two most recent stubs precisely so they can compare the current-period figures against the year-to-date ones and see whether income is steady.
Why did a YTD figure go down?+
A year-to-date total should never fall. If one does, payroll has processed a correction - a reversed check, an overpayment being clawed back, or a wage adjustment from an earlier period. Ask payroll which period the adjustment relates to and keep both stubs.
Sources
- IRS Publication 15 (Circular E), employer's tax guide
- IRS Publication 15-T, Federal Income Tax Withholding Methods
- Social Security Administration, 2026 COLA fact sheet
- IRS, 401(k) contribution limits
- IRS, cafeteria plans (Section 125)
General information for planning, not tax or legal advice. Federal figures are checked against the cited IRS, SSA and Department of Labor documents.
Read next
Related guides and tools
- How to read a pay stub
Every section of a pay stub explained, plus a decoder for the abbreviations payroll systems use.
- W-4 calculator
Line-by-line W-4 entries that land you on the refund you want, including the multiple-jobs box.
- What is FICA tax?
The 7.65% pair on every US paycheck: what Social Security and Medicare take, and where each one stops.
- Why is my paycheck less than usual?
Ten reasons a check shrinks between one payday and the next, and how to tell which one hit you.