HOLMES, Judge: We must decide whether Gabriel Villagrana was entitled to claim dependency exemptions on his 2008 tax return for his five children from his marriage with Marci Villagrana.

*355 The Villagranas divorced in 2004, and both Gabriel and Marci signed a marital settlement agreement that was incorporated into the dissolution judgment. That agreement gave Marci custody of the five children, but said that Gabriel had the right to claim the dependency exemptions for the children for all years after 2003—if he stayed current with child support. As long as he did, the agreement required Marci to provide him with "any * * * declarations * * * required by federal * * * law to effect the parties' intent." We find that Form 8332, Release of Claim to Exemption for Child of Divorced or Separated Parents, is such a declaration. Form 8332 is important because it tells the IRS that a parent who does not have physical custody of a child is nevertheless entitled to the benefit of an exemption. A taxpayer in Gabriel's position—entitled by agreement to dependency exemptions 2012 Tax Ct. Memo LEXIS 358">*359 but not enjoying physical custody of his children—must attach to his return that form or some other document that conforms to its substance. Seesec. 1.152-4T(a), Q&A-3, Temporary Income Tax Regs., 49 Fed. Reg. 34459 (Aug. 31, 1984).

Gabriel kept his promise and made his child-support payments. But Marci—at least for 2008—did not uphold her end of the bargain and never gave him an executed Form 8332 for that year. Nevertheless, Gabriel claimed his five children as dependents on his 2008 tax return without physically fastening a copy of the *356 marital settlement agreement to his return. He had saved a copy and gave it to the IRS in preparing his case for trial.

Marci also claimed the children as dependents on her return. This caught the Commissioner's attention. He determined a deficiency against Gabriel, disallowing the exemptions because the marital settlement agreement's transfer of the dependency exemptions was conditional.

Gabriel—a California resident—petitioned us for relief, and we tried the case in San Francisco. The Commissioner asserted at trial that the only reason the marital settlement agreement didn't conform to the substance of Form 8332 was that Gabriel's right to the exemptions 2012 Tax Ct. Memo LEXIS 358">*360 was conditional on his being current with his child support payments. ¹

Armstrong v. Commissioner, 139 T.C.     (Dec. 19, 2012), is a nearly identical case reviewed by the entire Court. We held there that only a release that is unconditional conforms to the substance of Form 8332. This means that Mr. *357 Villagrana is not entitled to claim the exemptions for his children. The Commissioner, however, waived the accuracy-related penalty, so

Decision will be entered under Rule 155.