Idaho Code § 63-4205: Stamps to be affixed to controlled substances.

(1) When any person manufactures, purchases, acquires, possesses, transports, or imports into this state a controlled substance, subject to illegal drug taxes, he shall obtain from the commission illegal drug tax stamps and shall permanently affix the official indicia on the controlled substance evidencing the payment of the tax required under this chapter. No stamp or other official indicia may be used more than once.

(2) Taxes imposed upon possession of controlled substances by this chapter are due and payable immediately upon acquisition or possession in this state by the person acquiring or possessing such controlled substance.

(3) Payments required under this chapter shall be made to the commission on forms provided by the commission. The commission shall collect all taxes imposed under this chapter.