Do I need proof of S.S.number

[KurtL1 · Accepted solution]

When you file your return the IRS will verify your Social Security number with the Social Security database it maintains. You should always keep the social security cards on the numbers you entered on your return.

[BettyPayton]

S.S.OFFICE GAVE ME PROOF 

[LindaB1993 · Accepted solution]

You may present your social security card as proof that your name and social security number matches if requested.

[BettyPayton]

The IRS keep rejecting it

[LeonardS]

No, you do not need proof of your SSN.

If your return is being rejected for your SSN being incorrect, and you have verified that it is correct then you should file a paper return.  Generally in these situations the IRS has an issue validating social security numbers for e-filing but can process the same identical return by paper without any issues.