Agricultural employers (who deposit income tax withheld and social security and Medicare taxes on a semiweekly schedule) use this form to report their tax liability. Current Revision Form 943-A PDF Recent Developments None at this time. Other Items You May Find Useful All Revisions for Form 943-A About Form 943, Employer's Annual Federal Tax Return for Agricultural Employees About Form 943-X, Adjusted Employer's Annual Federal Tax Return for Agricultural Employees or Claim for Refund About Publication 51, (Circular A), Agricultural Employer's Tax Guide Other Current Products