Form 945-X, Adjusted Annual Return of Withheld Federal Income Tax or Claim for Refund
Use Form 945-X to correct administrative errors only on a previously filed Form 945. An administrative error occurs if the federal income tax (including backup withholding) you reported on Form 945 is not the amount you actually withheld from payees.
Other Items You May Find Useful:
Form 945, Annual Return of Withheld Federal Income Tax
Comment on Form 945-X
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