Last year I got married and my wife and I both updated our W4's to say Married/1. Well, this year we ended up owing money and I'm wondering what I can do to avoid this next year? We file our taxes as Married Joint but should we both update our W4's to say Single/0 (instead of Married/1) to ensure more taxes are taken out of our paychecks and we actually get a refund next year? Any advice would be appreciated. Thanks!