It is important that the amounts you report on your tax returns match what has been reported to the IRS on your behalf.
If the amounts differ, the IRS may correct the errors without you having to amend the return. They may send you a letter to advise you of the correction(s) they made. They will let you know if the correction resulted in an additional amount due.
If you agree with the corrections the IRS made, there is nothing more you need to do. If you do not agree, then you may want to file an amended return.
