Hi! I know that you get dinged for underpayment if you don't pay quarterly taxes at all on 1099 income in during the quarterly deadlines (and instead pay it all at tax time). But most of my 1099 income always comes in Q4. So, I'm I penalized for not anticipating 1099 income and thus paying nothing during the first three quarterly cycles, and only paying during the final (January) payment cycle? Is the penalty triggered by overall underpayment or by failure to pay during every quarterly payment cycle? Thanks!
