Agricultural employers have always had a unique set of payroll tax obligations, and Form 943 — the annual federal tax return for agricultural employees — sits at the center of them. In 2026, several changes affect how agricultural employers should approach their Form 943 filings, from updated deposit thresholds to revised reporting requirements for seasonal workers.
Why Form 943 Matters
While most employers file Form 941 quarterly, agricultural employers file Form 943 annually to report federal income tax withheld and Social Security and Medicare taxes for farmworkers. This annual filing cycle creates a different compliance rhythm — and a different set of risks. Because the return covers a full calendar year, errors that accumulate over 12 months of payroll processing can be significantly larger than those caught in a quarterly cycle. Getting Form 943 right requires year-round attention, not just a December rush.
Updated Deposit Thresholds
The IRS periodically adjusts the deposit thresholds that determine whether agricultural employers must deposit taxes monthly, semi-weekly, or with the annual return. For 2026, employers should verify which schedule applies based on their lookback period liability. Depositing under the wrong schedule — even if the correct total amount is eventually paid — can trigger failure-to-deposit penalties under IRC Section 6656.
Seasonal Worker Classification
Agricultural employers frequently rely on seasonal workers, and the classification of these workers has tax implications that extend beyond Form 943 itself. The distinction between employees and independent contractors is scrutinized heavily in agriculture, and misclassification can result in back taxes, penalties, and interest across multiple years. For 2026, ensure that your classification methodology is documented, consistently applied, and aligned with current IRS guidance.
Coordination With State Agricultural Tax Programs
Many states have their own agricultural employer tax programs with their own forms and filing requirements. These do not always align with the federal Form 943 calendar or definitions, which creates reconciliation challenges. For example, a state may define seasonal agricultural employment differently than the IRS, or may require quarterly filings even though the federal return is annual. Multi-state agricultural employers need a jurisdiction-by-jurisdiction matrix of their state-level obligations to avoid gaps.
Common Form 943 Errors
The errors we see most frequently on Form 943 filings fall into predictable categories. First, including non-agricultural wages on Form 943 instead of Form 941 — if an employer has both agricultural and non-agricultural employees, the wages must be reported on the correct form. Second, failing to account for the Social Security wage base correctly across an annual filing period — employees who work for multiple agricultural employers may exceed the wage base in aggregate, creating overpayment situations. Third, misapplying the earned income credit advance payment rules, which have specific provisions for agricultural employers.
Form 944 Is Obsolete — Do Not Confuse the Two
A point of ongoing confusion: Form 944, which was once available as an annual alternative to Form 941 for very small employers, is now obsolete. It is not the same as Form 943 and should not be filed. Agricultural employers file Form 943. All other employers file Form 941 quarterly. If your payroll system or tax software still references Form 944 as an option, that configuration needs to be updated immediately.
Year-Round Preparation
The best way to ensure an accurate Form 943 filing is to treat it as a year-round process rather than an annual event. Reconcile agricultural wages quarterly against your payroll register, verify deposit compliance each month, and document any classification decisions as they are made. By the time you sit down to prepare the return in January, it should be a confirmation exercise — not a discovery process.
Contact ReVerify if you need help with Form 943 compliance or agricultural employer tax obligations.