so they charge me inters and penalty even though i have a active installment agreement for the 2015 return that I'm paying on? or is it just fees to file an ext...

but I'm not filing so they cant take it until i file right? so when you file for exertion isn't that not filing your refund yet?

so they charge me inters and penalty even though i have a active installment agreement for the 2015 return that I'm paying on? or is it just fees to file an ext...