[Star]

I always thought that you had until the end of April regardless unless you're a business owner, then you have until the end of may. If you're late to file, you pay a penalty and all the interest on the money that you owe them.

They're pretty good with making decent arrangements if you owe. Sometimes they'll even wipe off the interest and penalties just to get their money. They have become more lenient in the past few years.