If you filed an extension and you're expecting a refund but missed the October 22 final cutoff date, you have until Octoto file a paper return and claim your 2021 refund.Final deadline to resubmit a rejected return that was originally e-filed on or before October 17.Final deadline to file your 2021 personal tax return if you filed an extension deadline for Hall income tax returns and, for certain taxpayers, the franchise and excise tax return from April.Final deadline to file your C corporation tax return if you filed an extension.Final deadline to file your 2021 calendar-year estate/trust tax return if you filed an extension.Due date for third installment of 2022 estimated tax payments.Final deadline to file your 2021 S corporation or partnership tax return if you filed an extension.Due date for second installment of 2022 estimated tax payments If you filed for a tax extension before the April 18 deadline, you have an additional six months to file your taxes.citizens or residents living and working abroad, including military duty Thats the day by which you must have filed your 2021 individual return and paid any remaining federal income taxes owed for last year. Deadline for filing a 2021 personal return for U.S. The federal tax filing deadline this year is Monday, April 18.This article clears the air on all the misgivings associated. All you need to do is understand the instructions and follow them meticulously. Deadline to claim a 2018 tax year refund Filing a tax extension is not rocket science, really.Due date for first installment of 2022 estimated tax payments.Deadline for filing a 2021 calendar-year C corporation or calendar-year estates/trusts tax return or extension.After that date, unclaimed 2021 refunds become the property of the Department of the Treasury The tax extension will allow simply to push back the deadline for sending in your 1040 by 6 months (4 months if you are out of the country). If you're expecting a refund: If you missed the April 18 filing deadline, you have three years from the Apdue date to file and still receive your refund.If you owe: To avoid late payment penalties and interest, any taxes you owe must be paid by this date, even if you filed an extension.The return or extension must be postmarked or transmitted for e-filing by Monday, April 18.Deadline for filing a 2021 personal return or extension.Deadline for filing an S corporation or Partnership return or extension The new April 15 due date and 6-month extension will apply in 2017, for taxpayers reporting information from the 2016 calendar year.Due date for fourth installment of 2021 estimated tax payments To qualify for a tax extension, you must file the appropriate form by the standard tax filing deadline of Ap(or April 19, 2016, if you live in Maine or Massachusetts).The IRS starts processing returns on January 24, 2022.The Intuit Electronic Filing Center begins accepting and holding/processing 2021 tax returns that are final and able to be e-filed.