My wife and I file jointly and both work full-time, but for the last few years I’ve also earned $10-$20k through various side gig activities (no withholding applies). We thought that we both answered the W-4 withholding set up questions correctly at our respective jobs to withhold the right amount, but for the last two years we’ve ended up with very large tax bills. What avenue is the best one to take to avoid having this happen in the future and having to pay additional fees?
