In Turbo Tax, Go to the Balance Sheet, Income reconciliation and quick entry, there you can enter it as tax exempt income.
Accounting:
When you received the money you debited cash and credit PPP loan payable.
When it was forgiven, you debit the PPP payable and credit OTHER Income. This will show up as Tax Exempt income on your M-1 and on your K-1
And yes, when you enter it on the About your business, it will show up there as forgiven but it doesn't carry over to the Balance Sheet from there.
