I need to pay the state return to avoid late penalties, and I might as well go through the whole filing process and pay what I owe, too. Can I file and pay for my state return on the FTB site, and file an extension for Federal on FreeTaxUSA, and pay the estimated tax that I owe for Federal as well?
What's the best way forward in my case? I'd still like more time to work through my return and get more questions answered.
Should I just file and pay the Federal, and amend later? I know there's a fee for amending. Is there no fee for filing an extension, and filing it later, within 6 months?