What Form W-3 is for
Form W-3 is the transmittal for paper Forms W-2. You complete it only when you file paper Copy A of Forms W-2 with the Social Security Administration, and it carries the combined totals from those W-2s. Do not file it alone. Use one even if you are sending a single paper Form W-2, and make sure both forms show the correct tax year and EIN.
Anyone who has to file Form W-2 has to file Form W-3, including a household employer with just one household employee. If you send Forms W-2 to the SSA electronically, you skip it, because the SSA builds Form W-3 from your Forms W-2. The red Copy A you see on screen is there for information only, and a printout of it cannot be filed with the SSA.
Who has to file Form W-3?
If you file Form W-2, you file Form W-3. It is the transmittal that goes on top of paper Copy A of your Forms W-2, and you need one even when you are sending a single paper Form W-2. Never send Form W-3 by itself. Household employers count too, so an employer with one household employee still files it and checks the Hshld. emp. box in box b. Both the Form W-3 and the Forms W-2 have to show the correct tax year and employer identification number.
- One Form W-3 per kind of Form W-2, sent in separate groups
- Agents with an approved Form 2678 file one Form W-3 for all the Forms W-2
- A transmitter or sender may sign for you if it is authorized by an agency agreement and writes For (name of payer) next to the signature
When is Form W-3 due?
Mail Form W-3 with Copy A of your Forms W-2 by February 1, 2027. The same date applies if you file electronically instead. You may request one 30-day extension by submitting a complete Form 8809 before the due date and signing it under penalties of perjury, but the IRS grants that only in extraordinary circumstances or catastrophe, such as a natural disaster or a fire destroying the books and records you need. No further extension is allowed. If you terminate your business, the deadline becomes the due date of your final Form 941 or 944.
Where do you send Form W-3?
Send the entire Form W-3 page along with the entire Copy A page of your Forms W-2. Photocopies are not acceptable, and you should not send any payment with the forms. Do not staple or tape Form W-3 to the Forms W-2, and do not fold them, because these forms are machine read and staple holes or tears get in the way. Send them flat, with the Forms W-2 arranged either alphabetically by last name or numerically by social security number.
- Social Security Administration, Direct Operations Center, Wilkes-Barre, PA 18769-0001
- Certified Mail: change the ZIP code to 18769-0002
- IRS-approved private delivery service: add ATTN: W-2 Process, 1150 E. Mountain Dr. and change the ZIP code to 18702-7997
Do you still need Form W-3 if you file electronically?
No. Do not file Form W-3 for Forms W-2 that you submitted electronically to the SSA. On the SSA's Business Services Online site, Form W-3 is generated automatically from your Forms W-2. W-2 Online lets you create, save, print, and submit up to 50 Forms W-2 at a time, and File Upload handles wage files built by payroll or tax software. You must e-file if you are required to file at least 10 information returns for the year, counting your Forms W-2. To request a waiver from that, file Form 8508 at least 45 days before the due date.
How do you fill out Form W-3?
Use black ink and 12-point Courier font, and send the whole page. The money amounts are totals from only the Forms W-2 you are sending with this Form W-3, and you leave out any Form W-2 marked VOID. Box 9 gets no amount and box 13 stays blank. Your totals should agree with what you reported on Forms 941, 943, 944, CT-1, or Schedule H (Form 1040), so hold on to your reconciliation notes in case the IRS or SSA asks. Make a copy of Form W-3 and keep it with Copy D of your Forms W-2 for at least 4 years.
What changed for the 2026 form?
Form W-3 now carries OMB number 1545-0029. Box 12a still totals the amounts reported with codes D through H, S, Y, AA, BB, and EE on your Forms W-2, and the new 2026 codes TA, TP, and TT are not reported on Form W-3 at all. Failure to file and failure to furnish penalties went up with inflation for returns required to be filed after December 31, 2026. For wages paid after calendar year 2025, the wage reporting threshold when no federal income, social security, or Medicare tax was withheld rises from $600 to $2,000.
- Box 14 on the 2026 Form W-2 was split into box 14a, Other, and box 14b, Treasury Tipped Occupation Code(s)
- Box 9 on the 2026 Form W-2 was reduced in size to make room in box 14a
Form W-3 line by line
| Line | What goes there |
|---|---|
| a | Control number. Optional, for numbering the whole transmittal. |
| b | Check one Kind of Payer box, one Kind of Employer box, and the Third-party sick pay box if it applies to you. |
| c | The number of completed Forms W-2 you are sending with this Form W-3. Do not count Forms W-2 marked VOID. |
| d | Establishment number. Optional, to identify separate establishments in your business. |
| e | Your 9-digit EIN in the format 00-0000000, matching your Forms 941, 943, 944, CT-1, or Schedule H. Do not truncate it. Enter Applied For if you have none yet. |
| f | Your name, the same as on your Forms 941, 943, 944, CT-1, or Schedule H (Form 1040). |
| g | Your address and ZIP code. |
| h | Any other EIN, including a prior owner's, that you used on Forms 941, 943, 944, or CT-1 for 2026 and that differs from the EIN in box e. |
| 1 through 8 | The totals of boxes 1 through 8 from the Forms W-2 you are sending: wages, federal income tax withheld, social security and Medicare wages and taxes, tips, and allocated tips. |
| 10 and 11 | The totals reported in box 10 (dependent care benefits) and box 11 (nonqualified plans) on those Forms W-2. |
| 12a | The total of all amounts reported with codes D through H, S, Y, AA, BB, and EE in box 12 on the Forms W-2. Do not enter a code. |
| 13 and 14 | Leave box 13 blank. In box 14, employers show the total income tax withheld by third-party payers on sick pay to your employees, which is also inside the box 2 total. |
| 15 through 19 | State and local totals. Enter the two-letter state abbreviation and your state ID number, or an X under State if more than one state is involved, then the wage and tax totals. |
| Signature | Sign and date under penalties of perjury, add your title, and give a contact person, phone, fax, and email so the SSA can reach you during processing. |
Penalties and withholding
$60
Per Form W-2 if you correctly file within 30 days after the due date
$130
Per Form W-2 if you correctly file more than 30 days after the due date but by August 1
$340
Per Form W-2 filed after August 1, not corrected, or never filed
$690
Per Form W-2 for intentional disregard of the filing rules, with no maximum
Source: IRS, Form W-3 (Rev. 2026) and General Instructions for Forms W-2 and W-3, (Including Forms W-2AS, W-2CM, W-2GU, W-2VI, W-3SS, W-2C, and W-3C). This page explains the form in plain English. It is not tax advice.