The 1% Rule, PMI, and Special Assessments: What Agents Won't Tell You

When calculating affordability, most first-time buyers focus entirely on the monthly mortgage payment (Principal and Interest). Real estate agents and lenders often encourage this narrow view because it makes more expensive homes seem attainable. However, the true cost of homeownership includes a host of ongoing expenses that can easily add 30% to 50% to your monthly housing budget.

A widely accepted rule of thumb is that you should budget 1% of your home's purchase price every year for ongoing maintenance and repairs. For a $400,000 home, that's $4,000 annually, or about $333 per month. This covers everything from replacing a water heater to fixing a leaky roof or repainting the exterior. If you buy an older home, you should budget closer to 2% or 3%.

If you put down less than 20% on a conventional loan, you will pay PMI. This insurance protects the lender (not you) if you default. PMI typically costs between 0.5% and 1.5% of the original loan amount per year. On a $350,000 loan, that's an extra $145 to $437 added to your monthly payment, providing zero equity benefit to you.

If you buy a condo or a home in a planned community, you will pay Homeowners Association (HOA) dues. These cover shared amenities and exterior maintenance. However, the real danger lies in 'Special Assessments.' If the HOA reserve fund is underfunded and the building needs a new roof, the HOA can levy a massive, unexpected bill (sometimes tens of thousands of dollars) on every owner.