Putting down as little as possible lets you take full advantage of the tax benefits of homeownership. Mortgage interest and property taxes are both fully deductible from state and federal income taxes. Also, making a small down payment frees up cash that you can use to meet unexpected home improvements.
Some real estate experts contend it is more economical, however, to make a larger down payment, thus reducing the amount of debt financed over the life of the loan. A borrower could potentially save several thousand dollars, maybe even hundreds of thousands of dollars.