To apply for an H-4 EAD, you must file Form I-765 with USCIS, along with supporting documents such as your H-4 approval notice (Form I-797), proof of your spouse’s approved I-140 or H-1B extension, your marriage certificate, and photos. The filing fee is typically $410, and processing times range from 3 to 8 months. Immigration lawyers can help ensure that your EAD petition is correctly prepared to avoid delays.