Foundations that are located outside the U.S. or foreign organizations are required to report any tax that is withheld at the source for any transaction that has happened within the United States. Usually, any foundation that has any tax withholdings in the U.S. are required to file a Form 1042-S. A foundation that is reporting the tax that is being withheld at the source, have to attach a Form 1042-S along with the Form 990-PF or any other attachment that verifies the reported withheld tax.
Any foreign exempt foundation that has tax withheld at the source are required to report it in the Form 990-PF and this amount will be considered as a credit for the foundation. Here is an example
Z is a private foundation that has its main office in England and has sold a property to W, which within the United States. The payment was completed but a small portion of the payment was withheld as tax in that transaction.
Z has to file a Form 1042-S because it has tax withheld at source for a transaction that happened in the United States and attaches it with its Form 990-PF.
When Z is filing a Form 990-PF return, Z can claim the amount that has been withheld at source as tax.
Here's how you can report your tax withheld in Form 990-PF using ExpressTaxExempt:
Note: This applies only to tax-exempt foreign organizations.
Private foundations located outside the U.S. have to paper file their Form 990-PF, as e-filing is not available to those foundations. These organizations can paper file their Form 990-PF and mail it to the address mentioned below:
Internal Revenue Service Center,
P.O. Box 409101,