| Social Security number | Your Social Security card, a W-2 or a past tax return. Lost your card? You can request a replacement at ssa.gov. |
| Routing number (9 digits) | The first group of numbers along the bottom left of a check. It is also in your bank’s app or website, usually under account details or direct deposit. |
| Account number | The group of numbers right after the routing number on the bottom of a check, or in your bank’s app under account details. You type it twice to make sure it is right. |
| Voided check | Take a check, write VOID across the front in large letters (do not cover the numbers at the bottom), then take a photo. No paper checks? Ask HR what else they can accept. |
| W-4 answers | If you have one job, no working spouse and no dependents, you usually only fill in Step 1 and sign. If you have more than one job, a working spouse or dependents, the free IRS Tax Withholding Estimator helps you decide. HR cannot give tax advice. |
| State withholding form | The portal links to the official Maryland, D.C. and Virginia forms. Choose the one for your situation (ask HR if you are not sure), fill it in, sign it, then upload a photo or PDF. |
| Form I-9 documents | You choose which original, unexpired documents to bring from the official USCIS Lists of Acceptable Documents. HR reviews them in person within three business days of your start date. |