Melbourne e-commerce business owner managing online sales and bookkeeping with 42 Advisory’s accounting support

Accounting & Advisory for Melbourne’s E-commerce Businesses

E-commerce Accountant Melbourne: Fixed-Fee Accounting for Online Sellers

We keep online sellers compliant, automate the books, and show you what each channel actually earns.

We do the accounting for online retailers selling on Shopify, Amazon, Magento, Etsy and WooCommerce. One fixed monthly fee, Xero at the centre, settlement reconciliation and GST on imports and exports handled. You see what each channel actually earns after platform fees and shipping.

Book a Free Consultation

Accredited. Connected. Trusted.

A CPA Practice Built Around Xero

42 Advisory is a CPA practice and registered tax agent based in Chadstone. We run our e-commerce clients on Xero with direct platform and payment gateway integrations, so the numbers on your BAS trace back to the settlement reports they came from.
  • Logo_of_CPA_Australia
  • TPB
  • Xero_Logo - Blue
  • ATO_logo
  • myob-logo
 

E-commerce Accounting Explained

What Is E-commerce Accounting and Why Is It Different?

E-commerce accounting is the practice of reconciling high-volume online sales, platform and merchant fees, inventory and cross-border GST into accurate profit and tax reporting. Traditional invoice-based bookkeeping is not built for that work.

What is e-commerce accounting and why is it different

Want your e-commerce finances to run like your best-selling product?

We set up the system and keep it reconciled, so the numbers are ready whenever you need them.
Book a Free Strategy Session

How We Help You Stay Profitable and Compliant

How We Work With E-commerce Sellers

Three stages. Most clients start at set-up and add advisory once the data is clean.

1. Set Up Your Accounting Stack

Every business starts with structure.

We design and implement your accounting stack, linking Shopify, WooCommerce, or Amazon directly with Xero, integrating payment gateways, and creating clean, automated data flow.

You get reliable numbers from day one, without the manual work. Learn more about how to set up Xero for Shopify

2. Automate the Compliance Work

Once your system is live, we automate the essentials:

bookkeeping, BAS and GST,  payroll, and monthly reconciliation.
Our team manages everything from GST-free exports to import GST and customs duties, so every transaction is correctly reported to the ATO.

Lodgements go in on time without you chasing us.

3. Add Advisory Once the Data Is Clean

With clean data flowing, we step into strategy.

Through three-way cash-flow forecasting, detailed board-ready reports, and quarterly performance reviews, we help you make informed decisions on pricing, inventory, and reinvestment.

You’ll know where the business stands before you commit to the next stock order.

Automated e-commerce fulfilment with robotic arms packing online orders for shipment.

Why It Matters

Why E-commerce Accounting Is Essential for Growing Online Brands

Sellers who grow on bad numbers usually find out at BAS time or when the stock order lands. The three problems below are the ones we fix most often, and each one shows up as real dollars.

 

The Three Problems We Fix Most Often

 

1. Compliance Without Surprises

The ATO doesn’t take “I didn’t know” as an excuse.

From GST on imports and export exemptions to BAS lodgements and PAYG obligations, our systems ensure every transaction is correct, compliant, and submitted on time.
Learn more about E-Commerce accounting mistakes and how to avoid them.

2. Profit You Can Actually See

Many e-commerce owners sell more but earn less.

We track your true margins after merchant fees, shipping, and platform costs, so you know what’s really profitable.
Our real-time dashboards and three-way forecasts show it live, not at year-end.

Calculate your true e-commerce profit margins 

3. Clarity for Smarter Growth

Board-ready reports, budget reviews and scenario modelling show you what the next decision costs before you make it.

watches_of_Mayfair

Case study

Watches of Mayfair (online luxury watch retailer, Magento)

The challenge. As an importer and global seller of luxury watches, Watches of Mayfair faced four tangled accounting problems at once:

  • Import GST at customs, GST levied on importation needed to be captured and recorded correctly in Xero (not treated as a standard 10% on the supplier invoice), so input tax credits were claimed accurately.
  • GST-free exports, sales shipped to customers outside Australia had to be coded as GST-free exports, not standard-rated, to avoid over-reporting GST on the BAS.
  • Disconnected sales data, Magento orders weren't flowing into Xero, so invoices and cash receipts were being handled manually and reconciliation lagged.
  • Stock on hand, high-value inventory wasn't being properly valued and matched to cost of goods sold, distorting margin and year-end profit.

What we did. We integrated Magento with Xero so sales orders raise invoices and cash receipts automatically, then built GST treatment that correctly separates import GST charged at customs from domestic supplies and codes overseas sales as GST-free exports. We implemented inventory accounting for stock on hand with COGS matching, and set up monthly reconciliation so the books stay current.

The result. The Magento–Xero integration cut manual data entry by around 50%, sales orders, invoices and cash receipts that were once keyed in and updated by hand now flow through automatically. That halved the admin workload on bookkeeping, freeing the team to spend their time on customer service rather than updating tables. GST is now recorded correctly on imports and GST-free exports, and stock on hand is valued accurately at month-end. 

Book a free consultation

Initial Consultation

Strategy Beyond the Numbers

Where founders are investing in proprietary technology, custom logistics platforms, or new product formulations, we also assess and prepare R&D Tax Incentive claims. We bring the tax incentive into the same conversation as cash flow and margin planning.

R-and-d-tax-incentive

Tax Incentives

Are Your E-commerce Activities Eligible for the R&D Tax Incentive?

For e-commerce founders investing meaningfully in technology and product development, the R&D Tax Incentive can return a tax offset that meaningfully changes capital strategy. Eligible activities typically include proprietary platform engineering, recommendation and personalisation algorithms, custom fulfilment or logistics technology, and new product formulations developed through experimentation. Most claims fail when documentation is reconstructed at year end. Our staged, fixed-fee process front-loads eligibility, captures evidence in-year, and finalises the AusIndustry registration and ATO claim, so the position holds up under review. 

Learn about our R&D Tax Incentive services →
E-commerce data analytics and automation with digital dashboards and online order tracking.

Why E-Commerce Businesses Trust 42 Advisory

Every Order, Fee and Fulfilment Cost Accounted For

We work with independent sellers, DTC brands and omni-channel retailers scaling online stores while keeping margins healthy.

From reconciling multi-channel sales to managing international stock and returns, we make sure every order, fee and fulfilment cost is accounted for. If you want to see how that looks in practice, the Watches of Mayfair case study above shows the shape of a typical engagement.

Frequently Asked Questions

Frequently Asked Questions About E-commerce Accounting in Melbourne

What is e-commerce accounting?

E-commerce accounting is the management of financial reporting, tax compliance and profit optimisation for online businesses.

It differs from traditional retail accounting because it involves:

  • Multiple payment gateways
  • Platform fees (Shopify, Amazon, Stripe, PayPal)
  • Inventory management
  • Merchant processing fees
  • Refunds and chargebacks
  • Cross-border GST treatment

Accurate reconciliation across platforms is critical to understanding real profitability.

 

What does an e-commerce accountant do?

An e-commerce accountant typically:

  • Reconciles Shopify, Amazon and payment gateway settlements
  • Manages GST compliance (including international sales)
  • Tracks cost of goods sold (COGS)
  • Calculates gross margin accurately
  • Forecasts cashflow
  • Advises on inventory planning
  • Reviews platform fee structures
  • Identifies profit leakage

To scale online businesses, accounting must move beyond bookkeeping to include forecasting and margin optimisation.

 

Do e-commerce businesses need specialised accountants?

Yes, particularly when:

  • Sales exceed $250,000 annually
  • Inventory is held locally or internationally
  • Sales occur across multiple platforms
  • International transactions are involved
  • Advertising spend is material

Generic accounting often fails to reconcile merchant fees and inventory correctly, distorting profit visibility.

If you suspect your current accountant isn't keeping pace, these 7 Signs Your E-Commerce Business Has Outgrown Its Accountant will help you decide 

 

How is GST handled for e-commerce businesses in Australia?

GST obligations depend on:

  • Annual turnover
  • Whether goods are sold domestically
  • Whether goods are imported
  • Whether the business is registered for GST

Key considerations include:

  • 10% GST on domestic sales
  • Import GST thresholds
  • Marketplace facilitator rules
  • BAS reporting accuracy

Incorrect GST coding is one of the most common e-commerce compliance errors.

 

What is the best accounting method for e-commerce businesses?

Most e-commerce businesses operate on accrual accounting once inventory and growth scale require it.

Accrual accounting:

  • Matches revenue with cost of goods sold
  • Provides accurate gross margin
  • Supports lending applications
  • Enables forecasting

Cash accounting may distort margin and tax timing when inventory volumes increase.

How should e-commerce inventory be accounted for?

Inventory must be:

  • Valued correctly at year-end
  • Matched against the cost of goods sold
  • Adjusted for obsolete or damaged stock
  • Reconciled to physical counts

Failure to manage inventory properly can materially overstate or understate profit.

How can e-commerce businesses improve profitability?

Profit improvement typically involves:

  • Reviewing gross margin per product
  • Analysing advertising return on ad spend (ROAS)
  • Identifying platform fee leakage
  • Forecasting stock purchasing cycles
  • Reviewing shipping cost allocation
  • Structuring tax efficiently

Most e-commerce businesses know revenue. Fewer understand true net margin.

What are common e-commerce accounting mistakes?

Common errors include:

  • Not reconciling settlement reports
  • Ignoring merchant fees
  • Incorrect GST treatment
  • Mixing personal and business accounts
  • Poor inventory tracking
  • Not forecasting cash flow around stock orders

These issues often only surface at tax time, when correction becomes expensive.

Can e-commerce businesses claim the R&D Tax Incentive?

Yes, in the right circumstances. E-commerce companies developing proprietary platforms, custom logistics or fulfilment technology, recommendation systems, or new product formulations may qualify under Division 355 of the ITAA 1997. Eligible activity must involve genuine technical uncertainty resolved through a systematic, experimental process. Routine Shopify, Magento, or WooCommerce configuration does not qualify on its own. Read more about our R&D Tax Incentive services. 

Who is the best accountant for a Shopify business in Melbourne?

Look for a CPA-qualified, registered tax agent with direct Shopify–Xero integration experience, fixed-fee pricing, and demonstrated e-commerce outcomes.

42 Advisory is a Chadstone-based CPA firm specialising in Shopify, Amazon and WooCommerce sellers, handling platform reconciliation, GST on exports and imports, BAS, and three-way forecasting.

How much does an e-commerce accountant cost in Australia?

Most specialist e-commerce accountants charge a fixed monthly fee scaled to sales volume, channels and inventory complexity, rather than hourly rates, so costs are predictable as you grow. 42 Advisory works on a fixed-fee model.

Written and reviewed by the 42 Advisory team, CPA Australia members and a registered Tax Agent (TPB), Chadstone, Melbourne. We work with Shopify, Amazon, WooCommerce, Magento and Etsy sellers across Australia. 

Ready to Grow Your E-Commerce Business?

Schedule a Strategy Meeting