Set up an installment plan if you owe a lot
On that note, many people don’t realize that the IRS offers installment plans for people who owe more than they can pay. These are extremely easy to set up — just a short form — and can allow you to spread your unpaid tax bill over a period of as long as 72 months.
To be clear, you’ll still pay interest on any unpaid balance, but it’s a pretty easy way to handle a tax bill that’s higher than you were expecting.