# Add tips or surcharges to the store

- [Add tips selection to the checkout](/discounts-and-tips/add-tips-or-surcharges-to-the-store/add-tips-selection-to-the-checkout.md)
- [Apply hidden surcharges](/discounts-and-tips/add-tips-or-surcharges-to-the-store/apply-hidden-surcharges.md)
- [Calculate surcharges on your server](/discounts-and-tips/add-tips-or-surcharges-to-the-store/calculate-surcharges-on-your-server.md)