The validity period of an Employment Authorization Document (EAD), also referred to as a work permit, can vary. It depends on your current immigration status or the type of visa you have. Most EADs are valid for 1 year. However, you cannot receive a work permit that will last longer than your permitted stay in the United States. So usually, the validity period of a work permit matches with the validity period of a person’s visa.
If you entered the USA with a visa under K-1 status, your work permit will be valid for 90 days.
If you obtained a work permit while applying for adjustment of status, your work permit is likely to be valid for 1 year.
If you filed a work permit application together with a travel document application, after or together with Form I-485, Application to Register Permanent Residence or Adjust Status, you will receive an EAD-Advance Parole card valid for 1 year.
And if a work permit was granted to you along with DACA, such work permit will be valid for 2 years.
The expiration date of a work permit card is indicated on the plastic card itself. When your EAD expires, you can renew it by filing Form I-765, Application for Employment Authorization. The new EAD will be issued to an eligible applicant upon the expiration of a previous EAD issued under the same category.