You need to know everything. You both need to be comfortable with sharing everything. If you can't you are NOT ready to get married.
Michelle SingletaryTo get started, track your expenses for a couple of months. Then you should be able to start filling in your estimated debits and deposits for the next few months. Once you get it rolling for a while, you will be able to see your budget for the upcoming months reflected in the estimated totals. You can even notice year-to-year trends, like bonuses, tax bills, etc. that come up routinely and it will help you budget accordingly.
Michelle Singletary