For those who owe money, JetBlue is running a giveaway where you can win a free one way flight. You can enter this giveaway once per day through April 25, 2017. There will be 66 winners every day for the first 14 days of the promotion period, and then 76 winners for the last and final day. Overall, a total of 1,000 people will win!
The one-way certificate will be valid between May 1, 2017 and June 17, 2017https://www.jetbluetaxreturnflight.com
P.s. Although you have to check off that you actually owe taxes, I don't think there's a way for them to verify.