Adjust Sub S basis for PPP loan forgiveness

[Carson man]

How do you input the basis increase for the PPP loan forgiveness in Proseries? 

[Accountant-Man]

Why does the basis increase?

[rbynaker]

M-1: "Income recorded on books" which should then flow to OAA on M-2.

[Carson man]

I inputted the loan forgiveness on line 5a of the M-1 and it does not flow to the M-2. 

[Carson man]

Basis increases as it is treated like tax-exempt interest. 

[Accountant-Man]

I entered book income higher than tax income by 10K, then called it "tax exempt interest" on nthe M-1 adjustments sheet. 

10k flowed to M-2, OAA.

There seems to be no other way to get it to OAA unless you manually enter it. No code.