How long do I have to make corrections after a report is rejected from the IRS?

For a "Rejected" filing, you have 60 days from the date of the rejection to make corrections and resubmit the filing. 

The IRS only allows 60 days from the time of the original submission to fix these rejections. If a rejection is not corrected within the 60-day time frame, the IRS will not allow us to amend the filing later.

For filings that are "Accepted with Errors" the IRS has simply advised that you submit your corrections as soon as possible.