Holdback runs the hire from checkout to return. The customer pays the hire fee at checkout and Shopify saves their card for a deposit, shown up front and taken only if owed. Late? Keep the agreed daily rate for the days late, up to the deposit. Back fine? Release it from It's back. Not returned or lost: keep up to the deposit, as the checkout terms say. Damage goes as an itemised request the customer approves. Needs a payment provider that saves cards, such as Shopify Payments.

• Hire fee at checkout; Shopify saves the card for the deposit, nothing taken
• Not returned or lost: keep up to the deposit the customer agreed to at checkout
• One check when a hire's back: fine, damaged, part missing, not returned or lost
• Late fees at the daily rate agreed at checkout, only when you confirm it's late
• Damage goes as a claim, photos if you have them, never over your estimate