What do I need to do with my K-1 (Form 1065)?

[jkoger12]

I received a Schedule K-1 after I already filed my taxes.  However, there was no gain/loss on it at all.  So do I need to amend or not?

Note: I previously asked a question about this but I am confused because I am getting a different answer than others are.

My question:
https://ttlc.intuit.com/questions/4738264-i-received-my-schedule-k-1-form-1065-after-i-filed-my-taxe...

Other peoples questions:

https://ttlc.intuit.com/questions/3859741-after-i-filed-taxes-i-received-a-k-1-from-proshares-i-boug...

https://ttlc.intuit.com/questions/3955651-i-got-schedule-k-1-for-ung-securities-i-owned-and-sold-off... (comments say differently)
https://ttlc.intuit.com/questions/3952654-k1-no-income-do-i-need-to-report
https://ttlc.intuit.com/questions/4203842-k1-with-all-zeros-do-i-need-to-add-to-my-personal-return
https://ttlc.intuit.com/questions/3034824-i-have-a-k-1-with-no-income-or-loss-from-a-lp-limited-part...
https://ttlc.intuit.com/questions/3898150-do-i-need-to-file-a-1065-and-k-1-if-the-partnership-had-no...

If you could help clear up my confusion that would be appreciated.

[Critter]

Ok ... bottom line ... use the amendment program to add the late K-1 then decide....

If you are getting a refund you can choose to mail in the amended return to get it or leave it be... this is your choice not a requirement as the IRS will recompute your return and know you left money on the table.  You may have some basis adjustments or  losses you can capture for the future use.

However if you owe then you MUST mail in the amended return and pay the balance due.