The IRS does not acknowledge receipt of mailed tax returns. If you mailed it by a service that provides tracking, such as certified mail, the Postal Service tracking is your confirmation that the IRS received it. If you are expecting a refund, check the status with Where's My Refund? on the IRS web site.
Did your dependent originally file without checking the box to indicate that he can be claimed as a dependent, and then file an amended return to correct it? Even though your dependent has filed an amended return, the original error might still delay the processing of your tax return.
