Common Shopify Accounting Mistakes to Avoid
Introduction Running a successful Shopify store in 2026 is no longer just about marketing and conversions. With tighter HMRC rules, Making Tax Digital (MTD) requirements, and increasingly complex VAT treatment, accurate Shopify accounting has become critical for UK online sellers. At A2Z Accounting Solutions , we work with Shopify businesses across Scotland and the UK, and we see the same accounting mistakes repeatedly — often costing sellers thousands in lost profit, overpaid tax, or HMRC penalties. This guide highlights the most common Shopify accounting mistakes to avoid in 2026 and explains how to fix them before they become serious problems. Common Shopify Accounting Mistakes 1. Confusing Shopify Payouts with Actual Revenue One of the biggest mistakes Shopify sellers make is assuming their Shopify payout equals their income. Why is this wrong Shopify payouts are net figures, after: Payment processing fees Refunds and chargebacks Currency conversion fees Platform fees If yo...