Requesting Tax Abatement for 2024

Good morning,

 

I didn't ask for extension back in april, and haven't yet filed for 2024.

My current tax due from turbo tax is $35.000 that I confirmed with a Turbo Tax expert. 

I have three questions on this topic.

 

Q1: how is the late fee calculated? is that a percentage of what's due that accumulate every month since filing? I imagine that is going to be a pretty high fee in my case in the order of thousands of dollars

Q2: I heard about Tax Abatement. Is this a viable way for me to pay less fee even if I didn't file for extension? especially because we are before 15 Oct deadline?
Q3: Are there any other strategy to reduce my late fees now? 

 

Thanks, Alessandro from San Francisco