529 Plan Calculator

This projects a 529 account from the balance you have now, what you add each month and the return you expect, compounding monthly to the year college starts. A second action inflates a year of college forward at a rate you choose, adds up the years you want to fund, and reports the shortfall along with the monthly contribution that would close it. A third sets the plan against a taxable account paying tax on its gains each year, so the tax break comes out as a dollar figure. The state tax deduction is a number you type in, because every state sets its own rules and none of them are assumed here.