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Tax Deductions for Ecommerce Sellers: The 2026 Guide

2026-12-20  |  By Sarah Jenkins, CPA
Ecommerce entrepreneur working on laptop

Running an online store offers incredible freedom, but it also comes with a complex web of expenses. Unlike traditional retail businesses with clear rent and utility bills, ecommerce expenses are often digital, recurring, and easy to overlook at tax time.

If you are running a Shopify, Amazon FBA, or WooCommerce store in Australia, you need to ensure you are claiming every legitimate deduction to lower your taxable income. Here is the comprehensive list of deductions for 2026.

1. Digital Subscriptions & SaaS

The modern ecommerce stack is built on software. These monthly fees add up quickly and are 100% tax-deductible. Ensure you are capturing invoices for:

2. Home Office Expenses

Many ecommerce entrepreneurs start from home. You can claim a portion of your household expenses, but you must be careful with the method you choose:

The Shortcut Method

This allows a simple cents-per-hour claim for every hour you work from home. It covers electricity and gas but is often less than the actual cost.

The Occupancy Method

If you have a dedicated room exclusively for business (e.g., a room full of inventory or a packing station), you may be able to claim a portion of your Rent or Mortgage Interest.

Warning: Claiming occupancy expenses (mortgage interest) can trigger Capital Gains Tax (CGT) implications when you eventually sell your home. Always speak to a CPA before claiming this.

3. Marketing & Advertising

In ecommerce, traffic is something you buy. Every dollar spent on acquiring customers is deductible.

4. Banking & Transaction Fees

This is the "hidden" deduction many sellers miss. Payment gateways like Stripe, PayPal, and Afterpay take a cut of your sales before the money hits your bank.

If you sell a product for $100 and receive $97, you must record $100 as income and claim the $3 as a merchant fee expense. If you simply record the $97 as income, you are under-reporting your turnover and missing out on GST credits on the fees.

Audit-proof your claims.

We specialize in ecommerce tax returns. We scan your Xero file for missing subscription deductions and ensure your merchant fees are expensed correctly.

Review My Deductions