My son amended his tax return last night because he did not check "someone else can claim me." How long do we wait to file our taxes, as they are rejected because of his

The amended return will not remove the IRS blockage of your tax return.

You will have to print and mail your return with him as your dependent.

See this TurboTax support FAQ for how to print and mail a tax return - https://ttlc.intuit.com/turbotax-support/en-us/help-article/printers-printing/print-mail-return-turbotax-online/L5bwuqXGy_US_en_US?uid=m8q53h4m