Final regulations on consistent basis reporting have been issued under Code Secs. 1014 and 6035.

Consistent Basis Requirement

The general rule is that a taxpayer’s initial basis in certain property acquired from a decedent cannot exceed the property’s final value for estate tax purposes or, if no final value has been determined, the basis is the property’s reported value for federal estate tax purposes. The consistent basis requirement applies until the entire property is sold, exchanged, or otherwise disposed of in a recognition transaction for income tax purposes or the property becomes includible in another gross estate.

“Final value” is defined as: (1) the value reported on the federal estate tax return once the period of limitations on assessment has expired without that value being adjusted by the IRS; (2) the value determined by the IRS once that value can no longer be contested by the estate; (3) the value determined in an agreement binding on all parties; or (4) the value determined by a court once the court’s determination is final.

Property subject to the consistent basis requirement is property the inclusion of which in the gross estate increases the federal estate tax payable by the decedent’s estate. Property excepted from this requirement is identified in Reg. §1.1014-10(c)(2). The zero-basis rule applicable to unreported property described in the proposed regulations was not adopted. The consistent basis requirement is clarified to apply only to “included property.”

Required Information Returns and Statements

An executor of an estate who is required to file an estate tax return under Code Sec. 6018, which is filed after July 31, 2015, is subject to the reporting requirements of Code Sec. 6035. Executors who file estate tax returns to make a generation-skipping transfer tax exemption or allocation, a portability election, or a protective election to avoid a penalty are not subject to the reporting requirements. An executor is required to file Form 8971 (the Information Return) and all required Statements. In general, the Information Return and Statements are due to the IRS and beneficiaries on or before the earlier of 30 days after the due date of the estate tax return or the date that is 30 days after the date on which the estate tax return is filed with the IRS. If a beneficiary acquires property after the due date of the estate tax return, the Statement must be furnished to the beneficiary by January 31 of the year following the acquisition of that property. Also, by January 31, the executor must attach a copy of the Statement to a supplement to the Information Return. An executor has the option of furnishing a Statement before the acquisition of property by a beneficiary.

Executors have a duty to supplement the Information Return or Statements upon the receipt, discovery, or acquisition of information that causes the information to be incorrect or incomplete. Reg. §1.6035-1(d)(2) provides a nonexhaustive list of changes that require supplemental reporting. The duty to supplement applies until the later of a beneficiary’s acquisition of the property or the determination of the final value of the property under Reg. §1.1014-10(b)(1). With the exception of property identified for limited reporting in Reg. §1.6035-1(f), the property subject to reporting is included property and property the basis of which is determined, wholly or partially, by reference to the basis of the included property.

Penalties

Penalties may be imposed under Reg. §301.6721-1(h)(2)(xii) for filing an incorrect Information Return, and Reg. §301.6722-1(e)(2)(xxxv) for filing incorrect Statements. In addition, an accuracy-related penalty can be imposed under Reg. §1.6662-9 on the portion of the underpayment of tax relating to property subject to the consistent basis requirement that is attributable to an inconsistent basis.

Applicability Dates

Reg. §1.1014-10 applies to property described in Reg. §1.1014-10(c)(1) that is acquired from a decedent or by reason of the death of a decedent if the decedent’s estate tax return is filed after September 17, 2024. Reg. §1.6035-1 applies to executors of the estate of a decedent who are required to file a federal estate tax return under Code Sec. 6018 if that return is filed after September 17, 2024, and to trustees receiving certain property included in the gross estate of such a decedent. Reg. §1.6662-9 applies to property described in Reg. §1.1014-10(c)(1) that is reported on an estate tax return required under Code Sec. 6018 if that return is filed after September 17, 2024.