Private companies enter into thousands of transactions each year, many of which involve making payments of interest, dividends, rents, royalties, or compensation for services. When a U.S. taxpayer makes a payment of such U.S.-source income to a foreign person or entity (non-resident aliens, or "NRA"), withholding may be required at source. Failure to comply with the withholding rules exposes the U.S. taxpayer to a host of potential liabilities, including liability for the tax that should have been withheld along with substantial penalties and interest.

