Form 943a (943-A) Daily Tax Liability

Last reviewed: 2025-10-17

Use the Form 943a: Tax Form Calculator Form 943a: as a stand alone tax form calculator to quickly calculate specific amounts for your 2026 943a state tax return. Alternatively, you can use one of our Combined Federal and State Tax Estimators to quickly calculate your salary, tax, and take-home pay.

What this does: Form 943a records your liability by pay date (federal income tax withheld plus both shares of Social Security and Medicare). If you are, or became, a semiweekly schedule depositor, you must attach this with Form 943 or 943-X.

How to use: Enter the liability for each day wages were paid. The calculator totals each month (A–L) automatically. Show liabilities here—not deposits.

Tips: Leave days with no liability blank. Use whole dollars or cents; monthly totals round to two decimals. If your monthly liability never reached the semiweekly threshold and you stayed monthly all year, Form 943a is generally not required.

Agricultural Employer's Record of Federal Tax Liability
You must complete this form if you are required to deposit on a semiweekly schedule or if your tax liability during any month was $100,000 or more. Show tax liability here, not deposits. (The IRS gets deposit data from electronic funds transfers.) DO NOT change your tax liability by adjustments reported on any Forms 943-X.
January Tax Liability		February Tax Liability		March Tax Liability
1	16	1	16	1	16
2	17	2	17	2	17
3	18	3	18	3	18
4	19	4	19	4	19
5	20	5	20	5	20
6	21	6	21	6	21
7	22	7	22	7	22
8	23	8	23	8	23
9	24	9	24	9	24
10	25	10	25	10	25
11	26	11	26	11	26
12	27	12	27	12	27
13	28	13	28	13	28
14	29	14	29	14	29
15	30	15		15	30
	31				31
A Total liability for month ▸		B Total liability for month ▸		C Total liability for month ▸
April Tax Liability		May Tax Liability		June Tax Liability
1	16	1	16	1	16
2	17	2	17	2	17
3	18	3	18	3	18
4	19	4	19	4	19
5	20	5	20	5	20
6	21	6	21	6	21
7	22	7	22	7	22
8	23	8	23	8	23
9	24	9	24	9	24
10	25	10	25	10	25
11	26	11	26	11	26
12	27	12	27	12	27
13	28	13	28	13	28
14	29	14	29	14	29
15	30	15	30	15	30
			31
D Total liability for month ▸		E Total liability for month ▸		F Total liability for month ▸
July Tax Liability		August Tax Liability		September Tax Liability
1	16	1	16	1	16
2	17	2	17	2	17
3	18	3	18	3	18
4	19	4	19	4	19
5	20	5	20	5	20
6	21	6	21	6	21
7	22	7	22	7	22
8	23	8	23	8	23
9	24	9	24	9	24
10	25	10	25	10	25
11	26	11	26	11	26
12	27	12	27	12	27
13	28	13	28	13	28
14	29	14	29	14	29
15	30	15	30	15	30
	31		31
G Total liability for month ▸		H Total liability for month ▸		I Total liability for month ▸
October Tax Liability		November Tax Liability		December Tax Liability
1	16	1	16	1	16
2	17	2	17	2	17
3	18	3	18	3	18
4	19	4	19	4	19
5	20	5	20	5	20
6	21	6	21	6	21
7	22	7	22	7	22
8	23	8	23	8	23
9	24	9	24	9	24
10	25	10	25	10	25
11	26	11	26	11	26
12	27	12	27	12	27
13	28	13	28	13	28
14	29	14	29	14	29
15	30	15	30	15	30
	31				31
J Total liability for month ▸		K Total liability for month ▸		L Total liability for month ▸

Check before filing: Ensure monthly totals (A–L) equal the annual liability reported on Form 943 (after adjustments). Keep this schedule with your records.

Last reviewed: 2025-10-17: If you believe this form requires an update, please contact us.

References: See the latest IRS Instructions for Form 943-A and About Form 943-A for who must file and examples.

Frequently Asked Questions

Can I estimate the General Business Credit?

Start with Form 3800 and then reflect the credit here.

How much would a 401(k) contribution change my net?

Model it with the 401(k) Calculator then rerun this page with your pre-tax amount.

Considering an IRS Offer in Compromise?

Read through Form 656-B to understand eligibility and steps.

What does FICA include?

FICA includes Social Security and Medicare payroll taxes withheld from employee wages.

Is there a quick pay-frequency comparison?

Yes—switch frequency on this page; for employer filings see 941 vs 944.

Important Notes

All calculations are estimates for guidance only. Always review your return and consider professional advice when submitting official filings.