If your business pays pensions, annuities, IRA distributions, or withholds backup withholding on any payments—including gambling winnings—you'll likely need to file Form 945 with the IRS. It's one of the lesser-known forms because it doesn't apply to regular employee payroll, which is why many businesses discover it too late, after the deadline has passed or the filing wasn't done correctly. This guide walks you through what the form reports, how to complete it, and when to file it.
What exactly does Form 945 report?
Form 945 (Annual Return of Withheld Federal Income Tax) reports federal income tax withheld , or that should have been withheld, on payments not related to regular employee payroll. This includes pensions, annuities, IRA distributions, and backup withholding , which applies, among other things, to gambling winnings when the recipient does not provide a valid tax identification number.
The distinction is key: if your business only has employees on traditional payroll, you'll probably never need this form. But if you also pay pensions to former employees, manage distributions from a retirement plan, or have ever had to apply additional withholding to a contractor or beneficiary, Form 945 comes into play.
Step 1: Gather the information before you begin
Before filling out the form, gather your business information (legal name, address, and EIN) and records of all taxes withheld on non-payroll payments for the entire calendar year. This includes any additional withholding statements and the exact amounts withheld each month, which you'll need if your business files monthly returns.
Step 2: Complete the business details
The top of the form asks for your business's legal name, address, and EIN. There's a specific box you must check if your address has changed since you last filed Form 945—failing to check it when required is a common mistake that can lead to unnecessary follow-up notices from the IRS.
Step 3: Lines 1, 2, and 3 — the heart of the form
This is where the actual amount is reported:
Line 1: Federal income tax withheld from pensions, annuities, IRA distributions, and similar payments.
Line 2: Additional withholding (backup withholding) applied during the year.
Line 3: the sum of lines 1 and 2 — this is your total tax for the period.
A common mistake is to report only one of the two categories when the business had both, or to confuse additional withholding with regular payroll withholding, which is on a completely different form (the 941).
Step 4: If you deposit monthly, break it down by month
If your business is a monthly depositor, the form asks you to break down the total withheld month by month , on lines identified from A to L (one for each month of the year), and the sum of those twelve lines goes on line M , which must match the total on line 3. This breakdown allows the IRS to verify that your monthly deposits during the year matched what you ultimately report on the annual return.
The deadline for submission is January 31st.
Form 945 is filed annually, with a deadline of January 31st of the year following the reporting period. Unlike other payroll forms that are filed quarterly, Form 945 is annual, making it easy to forget if you don't have a specific reminder on your tax calendar.
How to pay: everything must be electronic
One of the most surprising things for first-time filers of Form 945 is that the withheld tax deposit must be made electronically , through EFTPS (Electronic Federal Tax Payment System), IRS Direct Pay, or your IRS business account. If you exceed the deposit threshold, you can't simply attach a check to the form and mail it; the IRS can apply penalties for improper deposit even if the total amount paid is correct, simply for not using the required electronic method.
Common mistakes that trigger IRS notices
The most frequent errors when filing Form 945 are: confusing it with Form 941 (regular payroll) and reporting withholdings there that actually correspond to 945; not checking the change of address box when applicable; and incorrectly breaking down the monthly amounts when the business is a monthly depositor, which generates a discrepancy between line M and line 3 that almost always ends in a correction notice.
FAQ
Does my business need to file Form 945 if I only have employees on regular payroll?
No. Form 945 is exclusively for non-payroll payments, such as pensions, annuities, IRA distributions, and additional withholding. Regular payroll is reported on Form 941.
What if I didn't retain anything during the year?
If you had no withholding obligations during the year, you generally don't need to file the form, but it's a good idea to confirm with an accountant if you ever filed Form 945 in previous years, as the IRS may continue to expect the return until you formally notify them that it no longer applies.
Can I submit Form 945 electronically?
Yes, the IRS allows electronic filing of the form through authorized e-file providers, in addition to the mandatory electronic payment of the tax.
What is the difference between a monthly depositor and a quarterly depositor for the 945?
The deposit schedule (monthly or according to the payroll deposit system you already use) determines whether you need to break down the amounts month by month on lines A to L, or if you can report the total without that breakdown.
Keep the 945 on your tax calendar
Form 945 isn't part of most businesses' quarterly routine, which is precisely why it's so easily forgotten. If your business handles pensions, IRA distributions, or additional withholding at any time of year, it's worth marking January 31 on your calendar now and confirming with your accountant that your monthly records are complete by that date.
Request your free quote here if you want us to review which withholding forms are exactly right for your business.
Fuente: IRS — Instructions for Form 945.
Also read: Form 966: How to close your corporation step by step · Form 8822-B: Notify the IRS that your address or responsible party has changed · Franchise tax, sales tax, and income tax: The 3 taxes every business owner should understand · How to pay my business taxes · What is the IRS CAF file and why is your accountant waiting for it?
