@maryba12, if you have already filed your taxes, then there is no need to amend the return. If your return is rejected, then you can edit your return and add the missing third stimulus payment. However, if your return gets accepted, don't amend the return. Instead, the IRS will adjust your refund amount and add the missing stimulus amount to your refund. However, since the IRS will be adjusting your return, this will cause some delays while they process your return.
