Costco Toilet Paper is on Sale! (Kirkland Signature) by Rhonda September 23, 2021 September 23, 2021 4/10/21. It’s a rare Costco toilet paper sale! Select Costco locations have the Kirkland Signature Bath Tissue 30-Rolls on sale for $14.99, now through April 12, 2021. That is $1.50… 0 FacebookTwitterPinterestEmail