Do-Nothing Congress as a Cure

A trick question: If Congress takes no action in coming years, what will happen to the budget deficit?

It will shrink — and shrink a lot. This simple fact may offer the best hope for deficit reduction.

As federal law currently stands, some significant tax increases are set to take effect in coming years. The most important is the scheduled expiration of the Bush tax cuts at the end of 2012.

....

This change, by itself, would solve about 75 percent of the deficit problem over the next five years. The rest could come from spending cuts, both for social programs and the military.

Over the longer term — 20 years — letting all of the Bush cuts lapse would close only about 40 percent of the budget gap. But 40 percent is a great start. No one is seriously suggesting that all deficit reduction should come from higher taxes. Much of it will have to come from slowing the growth rate of medical spending, which is the main cause of the long-term deficit.