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IRS Form 945-A is the Annual Record of Federal Tax Liability used to report federal tax liability for certain filers. This form must be filed by semiweekly schedule depositors, and the threshold requiring a next-day deposit is $100,000.
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IRS Form 945-A is the Annual Record of Federal Tax Liability used to report federal tax liability for certain filers. This form must be filed by semiweekly schedule depositors, and the threshold requiring a next-day deposit is $100,000.
Plain English
This form shows the IRS how much federal tax an employer or business owes over the course of a year based on when payments were actually made. It acts as a yearly summary that must accompany other annual tax forms like Form 945. If you are required to file this, it confirms your total liability for the period.
Submission Date
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Alaska Native Corp distribution
Use this for dividends where the recipient elected voluntary income tax withholding.
✓ Verify that you are tracking employee and employer shares.
Social Security/Medicare Withholding
Use this when reporting federal income tax withheld plus both the employee share and the employer share of social security and Medicare taxes.
✓ Ensure you account for the qualified small business payroll tax credit.
Amended Liability (Monthly)
Use this when filing an amended Form 945-A specifically for monthly schedule depositors who made an error on their original monthly totals.
✓ Only enter the monthly totals, not daily entries.
Tax Decrease Filing
Use this when filing an amended Form 945-A because you have a tax decrease and are submitting it alongside the amending form.
✓ Confirm both a tax decrease and the associated return type apply.
The filing trigger is when your Form 945, CT-1, or 944 is due. If you owe tax and file after that due date, you must use an amended Form 945-A to avoid penalties. No specific extension period is stated for the form itself in this excerpt.
Checklist
Calendar Year
Name as shown on Form 945, etc. · Form 945-A (p.1)
Employer Identification Number (EIN)
Your specific EIN number · Form 945-A (p.1)
Monthly Tax Liability Totals
The calculated total for each month (lines 1 through 31) · Form 945-A (p.1)
Total Tax Liability Calculation
The sum of monthly totals · Form 945-A (p.1)
Deposit Data Source
Electronic funds transfers · Instructions p.2 / Form p.1
Tax Decrease Condition
Applicable when filing with CT-1 X or 944-X · Instructions p.4
Field map
Employer Info
1 items
Full legal name and Employer Identification Number.
Quarter
1 items
Select the calendar quarter this return covers.
Wages
1 items
Sum of all wages, tips, and other compensation paid to employees during the quarter.
Withholding
1 items
Total federal income tax withheld from employee paychecks.
SS & Medicare
1 items
Wages subject to Social Security tax (capped) and Medicare tax (uncapped).
Deposit
1 items
Indicate your deposit schedule: monthly, semiweekly, or next-day rule if over $100k.
Signatures
1 items
Must be signed by an authorized officer or agent of the employer.
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Fillable formOpen in Editor->The current edition is Revision December 2024, and users should refer to IRS.gov/Form945A for the latest information regarding Form 945-A Annual Record of Federal Tax Liability.
Quick Facts
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Who must file Form 945-A?
File it if you are a semiweekly schedule depositor, or if you are a monthly schedule depositor who accumulates $100,000 or more in tax liability on any day of a calendar month.
→ Check the deposit rules explained in section 11 of Pub. 15.
When should I file Form 945-A?
File it to report your federal tax liability based on when payments or wages were paid for specific tax returns (like Forms 945 and 945-X).
→ Confirm the form covers the relevant payment/wage dates.
What if my net tax liability is low?
Do not complete Form 945-A if your net tax liability for the return period is less than $2,500.
→ Verify that the final calculated net tax liability is above $2,500.
How do I file an amended Form 945-A?
File it when you need to correct previously reported tax liability, such as moving a reported liability from January 1 to March 1.
→ Ensure you clearly mark the form as "Amended" and adjust the date/amount accordingly.
Can adjustments on other forms change my Form 945-A?
No; when filing Form 945-A with Forms 945, CT-1, or 944, do not change your current year tax liability based on those adjustments.
→ Confirm the adjustment is reported on a Form 945-X, CT-1 X, or 944-X.
Where do I send my filing?
File at the address provided in the penalty notice you received (this applies to amended filings for monthly depositors).
→ Check your most recent IRS penalty notice for the correct mailing location.
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This form shows the IRS how much federal tax an employer or business owes over the course of a year based on when payments were actually made. It acts as a yearly summary that must accompany other annual tax forms like Form 945. If you are required to file this, it confirms your total liability for the period.
Form 945-A must be filed by semiweekly schedule depositors. Monthly schedule depositors become semiweekly depositors if they accumulate $100,000 or more of tax liability on any day of a calendar month.
The form collects your employer identification number (EIN) and business name at the top. It requires you to enter your tax liabilities by month in spaces corresponding to when wages/compensation were paid or nonpayroll payments were made, culminating in the total for line M.
Form 945-A must be filed every year with Form 945, CT-1, or 944 when those respective forms are due. The specific due date depends on which form it accompanies.
The instructions do not specify a single service center address for all filings. When filing, the form must be submitted with its accompanying Form 945, CT-1, or 944.
First, enter your business EIN and name exactly as assigned by the IRS at the top of Form 945-A. Next, enter the calendar year to which the form is attached. Finally, detail your monthly tax liabilities in the corresponding spaces, ensuring the total on line M matches the totals reported on Forms 945, CT-1, or 944.
If you file late and owe tax, failing to use an amended Form 945-A can result in the IRS assessing an “averaged” Failure-to-Deposit (FTD) penalty. The total tax on line M must match corrected amounts from other forms.
File it if you are a semiweekly schedule depositor, or if you are a monthly schedule depositor who accumulates $100,000 or more in tax liability on any day of a calendar month. Check the deposit rules explained in section 11 of Pub. 15.
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