Do some research and find what you would consider your fixed monthly payments when you graduate. The main ones I want you to consider is college loan, car payment and cell phone bill. If you pay child support, you would need to consider that and all other monthly bills you need to consider. For the withholding income tax from your paycheck, use 25% for the average withholding tax. In your calculation, consider the income of your spouse would be $2000/ month (before withholding income tax). Household Income Expenses Utilities- NTUA Car Payment Car Insurance College Loan Cell Phone Internet Living Expenses Emergency Total Expenses: Monthly Monthly Self 4800 389 450 175 125 175 75 1100 150 2639 Net Income Spouse Income Tax 0.25 2000 5100 3. Find what your adjusted monthly income would be, and what your maximum house payment could be after all expenses and income tax considered. Note] For Maximum monthly house payment, check www.bankrate.com