Agricultural employers use IRS Form 943 to report federal payroll taxes for farmworkers on an annual basis rather than quarterly. It is the return for reporting federal income tax withheld, Social Security tax, Medicare tax, and Additional Medicare Tax related to agricultural wages that are subject to those rules.
For employers handling 2026 farm payroll, the core framework is the same, but the Social Security wage base has increased to $184,500 for 2026. The employee and employer Social Security tax rates remain 6.2% each, and the Medicare tax rates remain 1.45% each. Additional Medicare Tax still applies at 0.9% on wages paid to an employee over $200,000 in the calendar year, with no employer match.
What Is IRS Form 943?
Form 943 is the Employer’s Annual Federal Tax Return for Agricultural Employees. It is used by agricultural employers to reconcile payroll taxes for the calendar year for farmworkers whose wages are subject to federal income tax withholding or Social Security and Medicare taxes.
Unlike Form 941, which most nonfarm employers file quarterly, Form 943 is filed once each year.
Form 943 generally reports:
- Federal income tax withheld from agricultural wages
- Social Security tax on covered agricultural wages
- Medicare tax on covered agricultural wages
- Additional Medicare Tax withheld from wages over the threshold
Current agricultural payroll guidance is now incorporated into Publication 15, Employer’s Tax Guide. Older agricultural guidance that used to appear in Publication 51 has been rolled into Publication 15.
Who Must File Form 943?
You generally must file Form 943 if you paid wages to farmworkers and either of these tests is met during the year.
The $150 Test
You paid any one employee $150 or more in cash wages during the year for farmework. This test applies separately to each farmworker.
The $2,500 Test
You paid $2,500 or more in total wages, counting cash and noncash wages, to all farmworkers combined during the year.
If either test is met, covered agricultural wages are subject to the Form 943 rules for that year. The two tests operate independently. Meeting one is enough.
Do You Keep Filing After the First Year?
Yes. Once you file your first Form 943, the IRS expects a return each year until you file a final return. If you stop paying wages and do not expect to pay agricultural wages again, you file a final Form 943 and check the final return box.
Which Workers Belong on Form 943?
Form 943 is for agricultural employees. Employers with both farm and nonfarm workers may need to file both Form 943 and Form 941 in the same year, depending on the type of services performed. Agricultural payroll rules are distinct from the rules for office staff and other nonfarm employees.
Special Rules for H-2A Workers
H-2A agricultural workers are one of the most common sources of reporting mistakes.
Social Security and Medicare
Wages paid to workers in H-2A status are not subject to Social Security or Medicare tax. That means those wages are not included in the Social Security and Medicare wage lines on Form 943.
Federal income tax withholding
Federal income tax withholding generally does not apply to H-2A workers unless the worker asks for withholding and the employer agrees. If withholding is made, that amount is reported on the federal income tax withholding line of Form 943.
Federal unemployment tax
H-2A wages are also excluded from FUTA.
Form W-2 reporting
Wages paid to H-2A workers are still generally reported on Form W-2. If federal income tax is withheld, that withholding must be shown properly.
For farms using both domestic workers and H-2A workers, payroll records should separate those wage categories from the start of the season. Trying to sort them out at year-end is where many Form 943 errors begin.
What Wages Are Subject to Tax on Form 943?
Not every payment made to a farmworker is treated the same way.
Cash wages
Cash wages include hourly pay, salary, piece-rate compensation, and other cash payments for farm labor. These wages are generally what drive whether Social Security, Medicare, and federal income tax withholding apply.
Noncash wages
Noncash wages can count toward the $2,500 filing threshold even though they may not be subject to the same withholding and FICA treatment as cash wages.
Hand-harvest laborer exception
Certain hand-harvest laborers are exempt from Social Security and Medicare tax if all required IRS conditions are met. This is a narrow exception and depends on the worker’s status, type of work, method of pay, commuting arrangement, and prior work history.
Because wage treatment can vary depending on the employee and the nature of the services, agricultural payroll has to be classified carefully before the Form 943 totals are prepared.
Form 943 vs. Form 941
Agricultural employers often ask whether they should be using Form 943 or Form 941. The answer depends on the employee’s work.
| Category | Form 943 | Form 941 |
| Filing frequency | Annual | Quarterly |
| Workers covered | Agricultural employees | Most nonfarm employees |
| Typical use | Farm and ranch payroll | General business payroll |
| Related liability schedule | Form 943-A for semiweekly depositors | Schedule B for Form 941 semiweekly depositors |
If your business has farm laborers and nonfarm administrative staff, you may need both returns.
Deposit Rules for Form 943 Taxes
Filing Form 943 once a year does not mean paying all tax once a year. Most employers must deposit payroll taxes during the year unless a small-liability exception applies.
Monthly deposit schedule
You are generally a monthly schedule depositor if your total taxes reported on Form 943 for the lookback period were $50,000 or less. Monthly depositors must deposit taxes by the 15th day of the following month.
Semiweekly deposit schedule
You are generally a semiweekly depositor if your lookback-period tax liability exceeded $50,000. Deposit timing then depends on the day wages are paid.
The $2,500 exception
If your total tax liability for the year is less than $2,500, you may be able to pay the tax with the return instead of making periodic deposits, as long as the IRS deposit rules are otherwise satisfied.
Electronic payment requirement
Federal tax deposits must be made electronically, generally through EFTPS.
How to Complete Form 943
Before preparing the form, gather:
- Your EIN
- Total wages paid to each farmworker
- Federal income tax withheld
- Social Security and Medicare wage totals
- Deposit records for the year
- Any adjustments that affect payroll taxes
Top section
Enter your business name, trade name if any, EIN, and address exactly as they appear in IRS records. If this is your final return or your address changed, mark the applicable box.
Core tax lines
The form walks through employee count, Social Security wages, Medicare wages, Additional Medicare wages, federal income tax withheld, adjustments, credits, total deposits, and either balance due or overpayment.
For 2026 reporting, the most important figures to keep in mind are:
- Social Security wage base: $184,500
- Social Security tax rate: 12.4% combined
- Medicare tax rate: 2.9% combined
- Additional Medicare Tax: 0.9% employee withholding on wages over $200,000
Employee count line
The employee count is based on the number of agricultural employees employed during the pay period that includes March 12.
Social Security wages
Only wages subject to Social Security tax are included, and only up to the annual Social Security wage base for each employee.
Medicare wages
All wages subject to Medicare tax are included because Medicare has no wage cap.
Additional Medicare Tax
You must withhold Additional Medicare Tax on wages you pay to an employee in excess of $200,000 during the calendar year.
Federal income tax withheld
Enter the total federal income tax withheld from agricultural wages.
Form 943-A
If you were a semiweekly depositor at any time during the year, you generally must attach Form 943-A, Agricultural Employer’s Record of Federal Tax Liability. Monthly depositors do not use Form 943-A but instead complete the monthly liability section on Form 943 when required.
The liability totals must reconcile to the tax reported on the return.
When Is Form 943 Due?
Form 943 is generally due on January 31 of the following year. If you deposited all taxes on time and in full, you generally have until February 10 to file.
For the 2026 calendar year, the regular due date falls on February 1, 2027, because January 31, 2027 is a Sunday. Employers that made all required deposits on time generally have until February 10, 2027 to file.
Where to Mail Form 943
The mailing address depends on whether you are sending a payment and where your principal place of business is located. The IRS updates mailing addresses on its current Form 943 instructions page, and those instructions should be checked before mailing a paper return.
Without a payment
Employers in the following jurisdictions mail Form 943 without a payment to:
- Department of the Treasury
- Internal Revenue Service
- Kansas City, MO 64999-0008
This generally applies to employers located in:
Connecticut, Delaware, District of Columbia, Georgia, Illinois, Indiana, Kentucky, Maine, Maryland, Massachusetts, Michigan, New Hampshire, New Jersey, New York, North Carolina, Ohio, Pennsylvania, Rhode Island, South Carolina, Tennessee, Vermont, Virginia, West Virginia, and Wisconsin.
Employers in the following jurisdictions mail Form 943 without a payment to:
- Department of the Treasury
- Internal Revenue Service
- Ogden, UT 84201-0008
This generally applies to employers located in:
Alabama, Alaska, Arizona, Arkansas, California, Colorado, Florida, Hawaii, Idaho, Iowa, Kansas, Louisiana, Minnesota, Mississippi, Missouri, Montana, Nebraska, Nevada, New Mexico, North Dakota, Oklahoma, Oregon, South Dakota, Texas, Utah, Washington, and Wyoming.
If you have no legal residence or principal place of business in any state, use the address shown in the current IRS instructions for foreign or non-state filers.
With a payment
Employers in the following jurisdictions mail Form 943 with a payment to:
- Internal Revenue Service
- P.O. Box 806532
- Cincinnati, OH 45280-6532
This generally applies to employers located in:
Connecticut, Delaware, District of Columbia, Georgia, Illinois, Indiana, Kentucky, Maine, Maryland, Massachusetts, Michigan, New Hampshire, New Jersey, New York, North Carolina, Ohio, Pennsylvania, Rhode Island, South Carolina, Tennessee, Vermont, Virginia, West Virginia, and Wisconsin.
Employers in the following jurisdictions mail Form 943 with a payment to:
- Internal Revenue Service
- P.O. Box 932200
- Louisville, KY 40293-2200
This generally applies to employers located in:
Alabama, Alaska, Arizona, Arkansas, California, Colorado, Florida, Hawaii, Idaho, Iowa, Kansas, Louisiana, Minnesota, Mississippi, Missouri, Montana, Nebraska, Nevada, New Mexico, North Dakota, Oklahoma, Oregon, South Dakota, Texas, Utah, Washington, and Wyoming.
Because mailing addresses can change, confirm the current address in the latest IRS Form 943 instructions before you send a paper filing.
Penalties for Filing or Paying Late
Late filing and late deposits can trigger separate penalties.
Late filing penalty
If you do not file Form 943 on time, the IRS can assess a failure-to-file penalty based on the unpaid tax.
Late payment and late deposit penalties
Late deposits are subject to graduated penalties based on how late the deposit is made. Payroll tax deposit penalties commonly follow this structure:
- 2% for deposits 1 to 5 days late
- 5% for deposits 6 to 15 days late
- 10% for deposits more than 15 days late
- 15% in some cases after IRS notice
Interest may also apply.
Failure to deposit electronically
If you are required to deposit electronically and do not do so, the IRS may assess penalties even if the payment amount itself was correct.
Intentional disregard
More severe penalties can apply when the IRS determines the failure was due to intentional disregard of the filing or payment rules.
Reasonable cause
Penalty relief may be available if you can show reasonable cause, but it must be supported and properly requested.
How to Correct a Mistake on Form 943?
If you find an error on a previously filed Form 943, do not file a second original return. Use Form 943-X, Adjusted Employer’s Annual Federal Tax Return for Agricultural Employees or Claim for Refund.
Common reasons for filing Form 943-X include:
- H-2A wages were incorrectly included in FICA wages
- Social Security or Medicare wages were overstated or understated
- Federal income tax withholding was reported incorrectly
- An adjustment or overpayment was discovered after filing
A separate Form 943-X is filed for each year being corrected.
Year-End Reconciliation Checklist
Before filing Form 943, reconcile your return to payroll records and year-end forms.
Confirm employee wage totals
Make sure Social Security wages, Medicare wages, and federal income tax withholding tie to your payroll reports and employee year-end statements.
Separate H-2A wages
Verify H-2A wages were excluded from Social Security and Medicare lines.
Confirm deposit totals
Match EFTPS deposits and any carryforward amounts to the deposit line on Form 943.
Check liability schedules
If you were a semiweekly depositor, confirm Form 943-A is attached and reconciles.
Review credits and adjustments
If any payroll tax credits or adjustments apply, confirm the supporting forms and entries are complete.
Why Form 943 Errors Happen
Most Form 943 mistakes are not caused by the form itself. They happen because payroll records were not set up correctly during the year.
The most common problems include:
- Mixing H-2A and non-H-2A wages
- Misclassifying workers as farm or nonfarm employees
- Missing deposit deadlines
- Failing to reconcile W-2 totals before filing
- Forgetting to file a final return after agricultural payroll ends
Agricultural payroll should be tracked separately from general business payroll from the start.
Conclusion
Form 943 is the annual federal payroll tax return for agricultural employers, and it carries its own filing thresholds, deposit rules, worker classifications, and wage exceptions. For 2026, the most important figure changes are the Social Security wage base of $184,500 and the unchanged Additional Medicare Tax threshold of $200,000.
The cleanest way to avoid penalties is to classify workers correctly throughout the year, separate H-2A wages from the start, make deposits on time, and reconcile the return to payroll records before filing. For farms and ranches with seasonal labor, multiple worker categories, or both farm and nonfarm payroll, Form 943 deserves close attention.
If your operation needs help with agricultural payroll setup, annual Form 943 reporting, or correcting prior-year payroll tax issues, working with an advisor who understands agricultural payroll can prevent expensive mistakes.
Frequently Asked Questions
What is IRS Form 943?
Form 943 is the annual federal payroll tax return used by agricultural employers to report federal income tax withholding, Social Security tax, Medicare tax, and Additional Medicare Tax for covered farmworkers.
Who has to file Form 943?
An employer generally must file if it paid at least one farmworker $150 or more in cash wages during the year or paid total farm wages of $2,500 or more for the year.
What is the difference between Form 943 and Form 941?
Form 943 is for agricultural employees and is filed annually. Form 941 is for most nonfarm employees and is filed quarterly.
Are H-2A wages included on Form 943?
H-2A wages are not subject to Social Security and Medicare tax, but federal income tax withholding may be reported on Form 943 if withholding was requested and made.
When is Form 943 due?
It is generally due January 31 of the following year. If all required deposits were made on time and in full, the filing deadline is generally extended to February 10.
What is the 2026 Social Security wage base for Form 943 purposes?
The 2026 Social Security wage base is $184,500.
How do you correct an error on Form 943?
You generally correct errors using Form 943-X for the specific year being corrected.
Can small agricultural employers pay with the return instead of making deposits?
In some cases, yes. If the total tax liability for the year is under $2,500, an employer may be able to pay with the return instead of making periodic deposits, depending on the deposit rules.
