The IRS would go down for a routine year end maintenance schedule to upgrade the system for the new tax year. The impact would be on all the tax returns filed after December 26, 2020. IRS will not be available until 1st week of January 2021 to issue the acknowledgment proof. This would impact the Federal Vehicle Use Taxpayer reporting their heavy highway vehicle since July 2020. For vehicles operated for the first time in November 2020 will be due by December 31, 2020. We advised all the 2290 taxpayers to report it by the Christmas week to receive back the IRS watermarked Schedule 1 receipt. If you miss then you would not be able to receive a copy until 1st week of January.