We previously provided an overview of the time limits imposed on the Internal Revenue Service (IRS) for assessing federal tax. The general rule is that the IRS must assess tax within three years from the later of the due date of the original tax return or the date it was filed. If the IRS does not assess tax during this period, it is foreclosed from doing so in the future. Note that the filing of an amended return does not restart or extend the limitations period. There are numerous exceptions to this rule, including if there is a substantial omission of income, fraud, failure to file a return, extension by agreement and failure to provide certain information regarding foreign transactions. We discussed many of these exceptions in Seeking Closure on Tax Positions: A Look at Tax Statutes of Limitation and Omitted Subpart F and GILTI Income May Be a Statute of Limitations Trap for the Unwary. Below, we discuss the rules and considerations for consenting to extending the time to assess federal tax.
Internal Revenue Code (Code) Section 6501(c)(4) provides that, except in the case of estate taxes, taxpayers (or their duly authorized representative) and the IRS may consent in writing to an extension of the limitations period for assessment. Importantly, such an agreement must be executed before the limitations period expires. In other words, assuming no other exception applies to the general three-year rule, an agreement to extend the limitations must be executed within the later of three years from the date the tax return was due or filed. If executed after that date, the consent is invalid. Thus, a late-filed consent cannot revive an otherwise closed limitations period. Under Code Section 6511(c), extending the statute of limitations on assessment also extends the period for filing a claim for credit or refund to six months after the expiration of the extended assessment period.
Form 872, Consent to Extend the Time to Assess Tax, is generally used to effectuate an agreed extension to a certain date, however, other versions of the form may be used for different types of taxpayers or issues (e.g., Form 872-M, Consent to Extend the Time to Make Partnership Adjustments, is used for partners subject to the centralized partnership audit regime under the Bipartisan Budget Act of 2015). Form 872-A, Special Consent to Extend the Time to Assess Tax, may be used to extend the limitations period for an indefinite period (referred to as an Open-Ended Consent). An Open-Ended Consent ends 90 days after the mailing by the IRS of written notification of termination or receipt by the IRS of written notification of termination from the taxpayer (both actions are accomplished through the use of Form 872-T, Notice of Termination of Special Consent to Extend the Time to Assess Tax), or the mailing of a notice of deficiency. The IRS’s views on Open-Ended Consents are summarized in
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