I don't know that you can assume anything in regard to a payer who refuses to answer questions about how he prepared a federal information form. Do you have any proof any withholding was deducted and paid into the IRS? If so, there is a place you can indicate this.
- Go to Deductions and Credits
- Estimates and Other Taxes Paid
- Other income taxes
- Other income taxes paid in 2016
- Withholding not on W-2 or 1099
