In a Form 706NA, how do I claim a pro-rata unified credit pursuant to a treaty?
Complete the entries for Lines 1 through 3 in Schedule B on the second page of the return. Attach a statement to the return that refers to the particular treaty applicable to the estate, and write that the estate is claiming its benefits. Show your computation of the pro-rata unified credit in the statement, and enter that figure in the Tax Computation on Line 7 on the front page of the return. Attach to the Form 706NA a copy of the return filed with the treaty partner. If no estate or inheritance tax return has been filed with the treaty partner, explain in your statement why no foreign return was due. If there was no foreign return, attach a copy of an inventory that sets forth the decedents assets and their values at the date of death, and explains how the figure shown on Line 3 of Schedule B was computed.