Use Form 941-X to correct errors on a Form 941 that you previously filed.
Other Items You May Find Useful
About Form 941-X (PR), Adjusted Employer's Quarterly Federal Tax Return or Claim for Refund (Puerto Rico Version)
Notice 2015-2 , Application of Retroactive Increase in Excludable Transit Benefits (PDF)
Notice 2016-06 , Application of Retroactive Increase in Excludable Transit Benefits (PDF)
Notice 2016-55 , Treatment of Amounts Paid to Section 170(c) Organizations under Employer Leave-Based Donation Programs to Aid Victims of Severe Storms and Flooding in Louisiana that Began on August 11, 2016