27 CFR 44.67 - Payment of tax.
(a) General. The taxes on tobacco products, and cigarette papers and tubes with respect to which the evidence described in § 44.66 is not timely furnished shall become immediately due and payable. The taxes shall be paid to TTB, with sufficient information to identify the taxpayer, the nature and purpose of the payment, and the articles covered by the payment. (TTB Form 5000.24 may be used for this purpose.)
(b) Large cigars. The amount of tax liability on large cigars shall be based on the maximum tax rate prescribed in § 40.21 of this part, unless the person liable for the tax establishes that a lower tax rate is applicable.