26 CFR § 1.6081-4 - Automatic extension of time for filing individual income tax return.
(a) In general. An individual who is required to file an individual income tax return will be allowed an automatic 6-month extension of time to file the return after the date prescribed for filing the return if the individual files an application under this section in accordance with paragraph (b) of this section. In the case of an individual described in § 1.6081-5(a)(5) or (6), the automatic 6-month extension will run concurrently with the extension of time to file granted pursuant to § 1.6081-5.
(b) Requirements. To satisfy this paragraph (b), an individual must -
(2) File the application on or before the later of -
(i) The date prescribed for filing the return; or
(ii) The expiration of any extension of time to file granted pursuant to § 1.6081-5;
(c) No extension of time for the payment of tax. An automatic extension of time for filing a return granted under paragraph (a) of this section will not extend the time for payment of any tax due on such return.
(d) Termination of automatic extension. The Commissioner may terminate an automatic extension at any time by mailing to the individual a notice of termination at least 10 days prior to the termination date designated in such notice. The Commissioner must mail the notice of termination to the address shown on the Form 4868 or to the individual's last known address. For further guidance regarding the definition of last known address, see § 301.6212-2 of this chapter.
(e) Penalties. See section 6651 for failure to file an individual income tax return or failure to pay the amount shown as tax on the return. In particular, see § 301.6651-1(c)(3) of this chapter (relating to a presumption of reasonable cause in certain circumstances involving an automatic extension of time for filing an individual income tax return).
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