Business tax season has its own deadlines and its own penalties. Here's what's due, when, and what late filing actually costs.
Tax Deadlines
Last updated:
October 2026
Tax Deadlines
Key IRS and SSA Filing Deadlines and Late-Filing Penalties
What are the key filing deadlines?
For 2026 wages and payments, filed in 2027:
- Form W-2: due to employees and the SSA by February 1, 2027.
- Form 1099-NEC: due to recipients and the IRS by February 1, 2027.
- Form 1099-MISC: recipient copies due February 1, 2027 (February 16, 2027 for Box 8 or 10 amounts); IRS filing due March 1, 2027 on paper or March 31, 2027 electronically.
If a deadline falls on a weekend or federal holiday, it moves to the next business day.
What happens if I file late?
If you file a business income tax return late, the failure-to-file penalty is 5% of the unpaid tax for each month or part of a month the return is late, up to 25%. Paying late adds 0.5% of the unpaid tax per month, plus interest.
For W-2s and 1099s filed in 2027, penalties run $60 to $340 per form depending on how late you file. Intentional disregard costs the greater of $690 per form or 10% of the amount that should have been reported, with no annual cap. The same IRC structure applies to both 1099 and W-2 filings.
Incorrect or missing forms can be penalized twice. One set of $60 to $340 penalties applies to failing to file a correct return with the IRS or SSA (IRC Section 6721). A second, parallel set applies to failing to furnish a correct statement to the recipient (IRC Section 6722). Each set has its own annual maximum.
Do these deadlines vary by business type?
The W-2 and 1099 deadlines above apply regardless of entity type. Your business income tax return deadline (Form 1120, 1120-S, 1065, or Schedule C) depends on your entity structure and follows a separate calendar.
How do I avoid missing a deadline?
Start early. Waiting until the last minute increases the odds of a TIN error, a misclassified worker, or a missed extension window, any of which can turn a routine filing into a late one.
For the full penalty breakdown by tier, see IRS Penalties for Filing W-2s Late: What the IRS Charges Per Form.
Due dates can shift from year to year when a statutory date lands on a weekend or federal holiday. Check the current season's dates each year before you file.
Subject to change. Verify at IRS.gov, SSA.gov, or the relevant government site.
In 2023, the IRS lowered the eFile threshold from 250 returns to just 10, meaning most businesses are now required to file electronically. eFiling offers quicker processing, fewer errors, and faster confirmation that your forms were received by the IRS/SSA.
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Where to File
File your red ink Copy A of Form W-2 with a Form W-3 to the following address:
Social Security Administration Direct Operations CenterWilkes-Barre, PA 18769-0001 (for Certified Mail Use ZIP code 18769-0002)
File your W-2c (correction forms) and W-3c at the following address:
Social Security Administration Direct Operations CenterP.O. Box 3333 Wilkes-Barre, PA 18767-3333.
Lower eFile Limit
Reduce the 250-return threshold enacted in prior regulations to generally require electronic filing by filers of 10 or more returns in a calendar year. The final regulations also create several new regulations to require e-filing of certain returns and other documents not previously required to be e-filed.
Count All Returns
Require filers to aggregate almost all information return types covered by the regulation to determine whether a filer meets the 10-return threshold and is required to e-file their information returns. Earlier regulations applied the 250-return threshold separately to each type of information return covered by the regulations.
More Businesses Must eFIle
Eliminate the e-filing exception for income tax returns of corporations that report total assets under $10 million at the end of their taxable year, and require partnerships with more than 100 partners to e-file information returns, and they require partnerships required to file at least 10 returns of any type during the calendar year to e-file their partnership return.
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Corrections must be filed the same way the original was submitted. If you eFile the original then you must eFile the correction. If you mailed in the original then you must mail in the correction.
Do not cut or separate Copies A of the forms that are printed two or three to a sheet, except for Form W-2G. Generally, Forms 1097, 1098, 1099, 3921, 3922, and 5498 are printed two or three to an 8" x 11"sheet. Form 1096 is printed one to an 8" x 11" sheet.
These forms must be submitted to the IRS on the 8" x 11" sheet. If at least one form on the page is completed, you must submit the entire page. Forms W-2G are an exception and may be separated and submitted as single forms. Send your forms to the IRS in a flat mailing (not folded).
Do not staple, tear, or tape any of these forms. It will interfere with the IRS’s ability to scan the documents.
Pinfeed holes on the form are not acceptable. Pinfeed strips outside the 8" x 11" area must be removed before submission without tearing or ripping the form. Substitute forms prepared on continuous feed or strip form paper must be burst and stripped to conform to the size specified for a single sheet (8" x 11") before they are filed with the IRS.
Do not use a form to report information that is not properly reportable on that form. If you are unsure of where to report the data, call the information reporting customer service site at 1-866-455-7438 (toll free).
Do not submit anything other than red ink copies to the IRS.
Use the official forms or substitute forms that meet the specifications in Pub. 1179. If you submit substitute forms that do not meet the current specifications and that are not scannable, you may be subject to a penalty for each return for improper format. All of Adam’s tax forms meet the proper requirements, so use us as a resource.
Do not use dollar signs ($) (they are pre-printed on the forms), ampersands (&), asterisks (*), commas (,), or other special characters in money amount boxes.
Do not use apostrophes (’), asterisks (*), or other special characters on the payee name line.
No photocopies of any form are acceptable.
Do not print plain ink copies of your W-2 copy A or W-3 form. If a box doesn't apply to you, leave it empty.
Do not add "0".
Do not omit the decimal point and cents from entries.
Do not mistakenly check the “Retirement plan” checkbox in box 13. See page 22 of this IRS PDF for Retirement plan details.
Do not misformat the employee’s name in box e. Enter the employee’s first name and middle initial in the first box; his or her surname in the second box; and his or her suffix (such as “Jr.”) in the third box (optional).
Do not enter the incorrect employer identification number (EIN) or the employee’s SSN for the EIN.
Do not cut, fold or staple Copy A paper forms mailed to SSA.
Do not mail any copy other than Copy A of Form W2 to the SSA.
Correct Type 1 errors
File the correct form with the correct amount, code, checkbox, name or address, and check the “CORRECTED” box. This overwrites what you originally filed with the IRS under that person or company’s name and TIN. Send the corrected form to the recipient and prepare the red Copy A to send to the IRS with the Form 1096 transmittal if you’re paper filing. If you also had the wrong recipient/payee name or TIN do a Type 2 correction instead.
Correct Type 2 errors
For Type 2 errors, either the recipient/payee name and/or the TIN are wrong or you used the wrong form (like a 1099-MISC instead of a 1099-NEC). Action: This is a two-step process. First, you must zero out what you filed with the IRS under the wrong name/TIN and then file the new form.
Step 1
File a form with the CORRECTED box checked and the exact same payer and recipient information as on the incorrect form, but with all the amounts as zeros. This will remove the originally filed form from the IRS records.
Step 2
File a new Form 1099 with the right information as an originally filed form (not a corrected form).
Correct Type 3 errors
Incorrect Payer Name, Payer TIN, or both Action: Write a letter to the IRS.
If you filed with the wrong payer name (yours or your client’s name/company name) or the wrong payer taxpayer identification number (TIN), you don’t need to send in a corrected form.
Instead, you should write a letter containing the following information:
Name and address of the payer
Type of error (including the incorrect payer name/TIN that was reported)
Tax year Payer TIN Transmitter Control Code (if you eFiled),
Type of return, Number of payees, Filing method (paper or eFiling)
If you’re filing 10 or more information returns, STOP!
You have exceeded the IRS paper filing threshold and are required to file electronically.
For eFilers, Adams Tax Forms Helper offers secure, IRS-authorized eFiling.
Our site’s layout is simple and clear, so you can eFile with confidence and ease. The Helper also offers several add-on services, from Email Delivery to Mail Delivery, TIN Check, Corrections and more. These add-ons help your tax season run even smoother, by making sure your TINS and filings are accurate, your recipient/employee forms are delivered securely, and that you meet your tax deadlines.
For eFilers, Adams Tax Forms Helper offers secure, IRS-authorized eFiling.
Our site’s layout is simple and clear, so you can eFile with confidence and ease. The Helper also offers several add-on services, from Email Delivery to Mail Delivery, TIN Check, Corrections and more. These add-ons help your tax season run even smoother, by making sure your TINS and filings are accurate, your recipient/employee forms are delivered securely, and that you meet your tax deadlines.
For eFilers, Adams Tax Forms Helper offers secure, IRS-authorized eFiling.
Our site’s layout is simple and clear, so you can eFile with confidence and ease. The Helper also offers several add-on services, from Email Delivery to Mail Delivery, TIN Check, Corrections and more. These add-ons help your tax season run even smoother, by making sure your TINS and filings are accurate, your recipient/employee forms are delivered securely, and that you meet your tax deadlines.
