The last 2 years IRS questioned our refund. We had to send them proof delaying our refund. Can we upload proof.

Can I send copies of 1099s

After you file

You would have to print and mail the tax return to include any forms 1099, W-2 or other documentation with the tax return.

 

See this TurboTax support FAQ for the procedure to print and mail a tax return using the online editions - https://ttlc.intuit.com/questions/1944348-how-do-i-print-and-mail-my-return-in-turbotax-online