Cost to Start a Dollar Store Franchise. Initial startup costs begin at about $25,000 to $50,000 and range up to $300,000 or more. That covers most everything you’ll need to get started, including inventory, the initial lease, fixtures, signs, office equipment and grand opening advertisement. A 10-year franchise commitment is also required. 2  Dollar Discount Stores of America requires a total startup investment of $73,000 to $146,000. 3  Owners must have at least $20,000 in liquid capital, as well as good credit and collateral.