A client paid by Credit Card - so the charge appears on the 1099-K supplied by the credit card processing company. However, the client also sent me a 1099-misc
This would mean I'm reporting the same income twice.
First, the IRS only cares about total income numbers, so you should only report your total income regardless of the forms received (if you look at a Schedule C, you can see only total income is reported).
The best method to handle this situation in TurboTax so you don't double report is to report the 1099-MISC as it was reported to you and then reduce the amount from the 1099-K that you report to account for the double inclusion. A 1099-K gets reported as additional income along with cash and checks, so its simpler to just reduce this amount.
First, the IRS only cares about total income numbers, so you should only report your total income regardless of the forms received (if you look at a Schedule C, you can see only total income is reported).
The best method to handle this situation in TurboTax so you don't double report is to report the 1099-MISC as it was reported to you and then reduce the amount from the 1099-K that you report to account for the double inclusion. A 1099-K gets reported as additional income along with cash and checks, so its simpler to just reduce this amount.