Checkout UX Patterns That Reduce Cart Abandonment

Guest checkout should be the default path, forced account creation before payment is still a top abandonment driver in local market audits.

Show all-in pricing early: shipping estimate, VAT, and payment fees before the final step. Surprises on the last screen kill trust instantly.

Payment method diversity matters: Zarinpal, card, wallet, and COD each need clear icons and failure recovery, retry without losing the cart.

Mobile thumb zones: primary CTA full-width, sticky on scroll, with enough contrast in both light and dark themes.