Hello,
Based on what you just asked here are a few ways to correct.
https://www.thebalancesmb.com/correcting-an-incorrect-w-2-and-w-3-397968
https://www.irs.gov/newsroom/form-w-2-missing-irs-can-help
If your household employee filed already if he/she had another job they can amend it by adding your w2 in the amend and mail it in to the irs.
Hope this help. 🙂
