Most and Least Expensive States for Household Bills Dawn Allcot Alex Potemkin / Getty Images Many factors go into the cost of living in various states, including housing prices, state taxes, insurance costs and even the price of fuel. Monthly household bills also play a large role in a region’s cost of living. Digital bill paying service doxo recently reported that 20% of many household budgets go toward bills across 10 major categories. Doxo looked at bills in 10 common categories: Mortgage Life insurance Last updated: July 27, 2021 peterspiro / Getty Images/iStockphoto Most Expensive States for Paying Bills These five states are the most expensive to live in, as far as household bills go -- and they're probably not all that surprising.