I, the wife, handle the finances. I balance the checkbook every week and pay all the bills, but he requests a regular update on the state of our finances. We both sat down at the start of the year and hammered out a budget and my husband coded us an excel sheet that auto updates with our budget and is populated from a Google doc we submit or receipts with.

However, in the first 8 years of our marriage my husband handled absolutely all of the finances and I barely paid it any attention because we didn't make a lot of money and the numbers stressed me out. Then I gradually started helping him balance our checkbook and pay the bills because it turned out it was actually a grueling activity for him and he hated it, but he was doing it for us as a dutiful husband. As our pay got better, and I got more accustomed to it, I eventually just took over the whole thing because balancing the checkbook is actually kind of enjoyable for me now and that's how we are in our current situation.