I misplaced my grandsons SS card n need his full ssnum to finish my taxes I have filed with him in my tax return for 5 years how can I get copy of his social security number

[mesquitebean]

Have you looked at your old tax returns, school records, medical records, insurance records/applications, etc.?

[DaraLO]

Your old returns will contain your grandson's social security number.

If you've filed with TurboTax Online in the past, just log into your account and download or print a copy of your prior year return:  How do I access a prior year return? - Community

If you filed elsewhere, you can obtain a free copy of your tax return transcript, or a paid copy of your full return, from the IRS:  Can I get a copy of my tax return from the IRS? - Community

[Mommaj05]

Can I  see a copy of  of my grandson ssn

[Mommaj05]

Yes I have

[CassLO]

@Mommaj05 Please see the link below on how to retrieve a child's social security number:

How do I replace a Social Security card for a child? - FAQ Home