Purchasing a $400,000 house on a $70,000 annual income is generally not recommended as it represents a price-to-income ratio of nearly 5.7 to 1. This significantly exceeds the typical 3-to-4-times guideline, making it difficult to qualify for a mortgage through standard lending paths. Even if you were able to secure a loan, the monthly mortgage burden, when combined with property taxes and insurance, would likely absorb a very large percentage of your monthly income. This scenario makes you highly vulnerable to financial instability, particularly if you experience unexpected expenses or if interest rates remain high. It is much more prudent to aim for a smaller mortgage by providing a larger down payment, seeking a more affordable home, or waiting until your annual income has increased to a level that better supports a purchase of this magnitude.