State tax filing

Hi, 

 

If I am understanding this correctly, just like you said, I have massachusetts as my resident (domicile), and CA and GA as non resident. When it comes to the state tax portion of my tax form, I have forms for all three and filled out the non resident, CA and GA forms first.

When I do this, I am owed the 5% income tax of my total earnings to MA, and I get some credits that deduct partial the amount of taxes that I paid to other states. With this I have few hundred dollars I owe to the state.

The confusion I have is the underpayment penalty. How do I pay the amount without incurring this penalty?