Use this required form for every employee to verify legal employment eligibility. Use these I-9 — Employment Eligibility Verification — Instructions or I-9 — Employment Eligibility Verification — Instructions — Spanish to assist you in properly completing the Form I-9. How to Download To complete Form I-9, you will need the latest version of Adobe Acrobat Reader or other PDF filler application. You can open the English or Spanish versions of the form and instructions in any browser.