https://ttlc.intuit.com/community/after-you-file/discussion/when-filing-my-taxes-in-2021-i-forgot-to-include-a-1099-b-that-had-capital-losses-is-it-possible-to/01/2866416#M689221 Mon, 23 Feb 2026 13:07:07 GMT hartnettpb-egr 2026-02-23T13:07:07Z https://ttlc.intuit.com/community/after-you-file/discussion/when-filing-my-taxes-in-2021-i-forgot-to-include-a-1099-b-that-had-capital-losses-is-it-possible-to/01/2866416#M689221 Mon, 23 Feb 2026 13:07:07 GMT https://ttlc.intuit.com/community/after-you-file/discussion/when-filing-my-taxes-in-2021-i-forgot-to-include-a-1099-b-that-had-capital-losses-is-it-possible-to/01/2866416#M689221 hartnettpb-egr 2026-02-23T13:07:07Z https://ttlc.intuit.com/community/after-you-file/discussion/re-when-filing-my-taxes-in-2021-i-forgot-to-include-a-1099-b-that-had-capital-losses-is-it-possible/01/2866428#M689224 <P>No. You have to amend your 2021 return.&nbsp;</P> Tue, 07 Feb 2023 17:44:26 GMT https://ttlc.intuit.com/community/after-you-file/discussion/re-when-filing-my-taxes-in-2021-i-forgot-to-include-a-1099-b-that-had-capital-losses-is-it-possible/01/2866428#M689224 Bsch4477 2023-02-07T17:44:26Z https://ttlc.intuit.com/community/after-you-file/discussion/re-when-filing-my-taxes-in-2021-i-forgot-to-include-a-1099-b-that-had-capital-losses-is-it-possible/01/2866430#M689226 <P>No.&nbsp; You will have to amend the 2021 tax return to add the Form 1099-B to the 2021 return.</P> <P>&nbsp;</P> <P>See this TurboTax support FAQ for amending a tax return -&nbsp;<A href="https://ttlc.intuit.com/turbotax-support/en-us/help-article/tax-return/amend-change-correct-return-already-filed/L4VjJ9BA2_US_en_US" target="_blank">https://ttlc.intuit.com/turbotax-support/en-us/help-article/tax-return/amend-change-correct-return-already-filed/L4VjJ9BA2_US_en_US</A></P> Tue, 07 Feb 2023 17:45:07 GMT https://ttlc.intuit.com/community/after-you-file/discussion/re-when-filing-my-taxes-in-2021-i-forgot-to-include-a-1099-b-that-had-capital-losses-is-it-possible/01/2866430#M689226 DoninGA 2023-02-07T17:45:07Z