What is proof of domestic or foreign service?

If you are required to attach proof of domestic or foreign service, you will have to provide a Certificate of Employment (or Proof of Resignation) with your full name, company’s name, position, actual duration of employment, and company’s stamp, seal, or signature. You may refer to the samples below. Please note that the company name on your Certificate of Employment (or Proof of Resignation) must be consistent with the company name on your Tax Return.