This proposed constitutional amendment would generally cap how much the federal government can spend each year to the average amount of tax and other revenue it collected over the previous three years, adjusted for population growth and inflation, meaning Congress couldn't routinely spend more than it takes in. Congress could still spend above that cap, but only by getting a two-thirds vote in both the House and Senate, or automatically during a declared war. It would also make it harder to raise taxes or create new ones, requiring a two-thirds vote in both chambers instead of the usual simple majority. If passed and ratified by the states, these rules wouldn't kick in until five years later, giving the government time to adjust before the limits apply.