As most tax professionals learned during the pandemic, paper filing is a great way to delay your refund and end up with your return lost in an IRS avalanche.  The IRS is still trying to get all the paper returns from the last two years posted and looking for returns and payments that got lost in the mail and did not get processed. The best reason for e-filing your return is that you get a receipt that it has been received, and there are no humans involved in inputting or processing it so it gets filed as submitted without errors made by IRS employees who are overwhelmed by the workload.