We're not married but have a family and have been together 18 years. My missus is an accountant but only works Monday to Thursday, this means she earns less than I do.We have separate accounts and a bills and savings account which we both pay into. Being in accounts you can guess how organised she is, I pay roughly 60% of the bills correlating to the wage differential. This means both of us have a similar amount of disposable income after paying the essentials.Of course she us an excel wizard and we have an extensive spreadsheet of exactly what goes in and out monthly.