My suggestion, going forward, is to pay your rent/utilities by check so you have a record of expense.
To prove this, just keep records of household bills, mortgage payments, property taxes, food and other necessary expenses you pay for. Second, you will need to show that your dependent lived with you for the entire year. School or medical records are a great way to do this.
The first requirement for filing as head of household is that you must have paid for more than half of the expenses involved in maintaining your household during the tax year.
This means that you must have paid more than half of the total household bills, including rent or mortgage, utility bills, insurance, property taxes, groceries, repairs and other common household expenses.
If you receive financial assistance toward your household expenses from a parent or other individual, you can still qualify to file as head of household as long as you are paying for more than 50 percent of the bills with your own earnings, savings, or capital.
-follow these link(s) for additional information-
Video: How to Prove Head of Household for the IRS ...
Guide to Filing Taxes as Head of Household - TurboTax Tax ...
