WordPress Development
WooCommerce Tax Configuration: UK VAT, US Sales Tax, GST, and Invoice Setup
WooCommerce tax misconfiguration creates regulatory risk. Here is the complete setup guide for every major jurisdiction — from UK VAT to US sales tax to Australian GST.
WooCommerce tax configuration is one of the most commonly misconfigured aspects of running an online store. Charging incorrect tax amounts exposes your business to regulatory risk, and displaying tax incorrectly damages trust with customers. This guide covers WooCommerce tax setup for every major scenario.
WooCommerce tax fundamentals
WooCommerce tax works on three layers: store location (your base), customer location (their shipping/billing address), and tax rates (the percentages you configure per region). WooCommerce can calculate tax based on where the customer ships to, where they bill, or your store base address.
| Tax calculation basis | When to use | Example |
|---|---|---|
| Customer shipping address | Physical goods shipped to customer location | Most e-commerce stores selling physical products |
| Customer billing address | Digital goods or subscriptions | SaaS, digital downloads, subscription services |
| Store base address | Simplified compliance for small stores | Small stores not legally required to charge destination tax |
Setting up basic tax in WooCommerce
Go to WooCommerce › Settings › General. Check ‘Enable tax rates and calculations’. Tax options now appear in the settings menu.
Go to WooCommerce › Settings › Tax. Set: Prices Entered With Tax (enter prices excluding tax for cleaner admin), Calculate Tax Based On (shipping address is standard), Shipping Tax Class (standard), Display Prices in the Shop (including or excluding tax based on your market norms), Display Prices During Cart and Checkout (including tax for B2C; excluding tax with breakdown for B2B).
Go to WooCommerce › Settings › Tax › Standard Rates. Add rows for each jurisdiction where you collect tax: country, state/region, postcode (if required), tax rate percentage, and tax name (GST, VAT, Sales Tax).
WooCommerce has Standard, Reduced Rate, and Zero Rate tax classes by default. Assign products to the appropriate class. Food items in the UK, for example, are zero-rated; children clothing is zero-rated; adult clothing is standard rated.
UK VAT configuration
UK businesses registered for VAT must charge 20% standard rate, 5% reduced rate, or 0% zero rate depending on the product type. Key configuration:
- Standard Rate: 20% on most goods and services. Country: GB, Rate: 20, Name: VAT.
- Reduced Rate: 5% on energy-saving materials, children car seats, sanitary products, some food supplements. Create a Reduced Rate tax class and assign eligible products.
- Zero Rate: 0% on food (most), books, children clothing, medical equipment. Create a Zero Rate tax class and assign eligible products.
- Exempt: No VAT charged. Financial services, insurance, health services. Products assigned to Zero Rate or no tax class.
- Distance selling to EU customers post-Brexit: for B2C sales above the EU OSS threshold (EUR 10,000), you may need to register for EU VAT via the OSS scheme.
US Sales Tax configuration
US sales tax is significantly more complex than most other tax systems — each state sets its own rates, many counties and cities have additional rates on top, and nexus (the threshold at which you must collect tax in a state) varies by state. Manual configuration is only practical for single-state businesses:
- For multi-state sellers, a dedicated sales tax automation service (TaxJar, Avalara, Vertex) is essential. TaxJar has a direct WooCommerce plugin that handles calculation, filing, and rate updates automatically.
- TaxJar charges from $19/month based on transaction volume. For stores with nexus in multiple states, this cost is minimal compared to the liability risk of miscalculating sales tax.
- Economic nexus thresholds (the level of sales that triggers collection obligation) vary by state — typically $100,000 in revenue or 200 transactions per year. Track your sales by state to know when thresholds are crossed.
Australian GST
Australia has a flat 10% GST on most goods and services, with a handful of GST-free items. Configuration is straightforward:
- Create a tax rate: Country AU, Rate 10.00, Name GST.
- GST-free items (most fresh food, some medical supplies, some exports): assign to Zero Rate tax class.
- Businesses with turnover under AUD 75,000 are not required to register for GST. Above this threshold, GST registration and charging is mandatory.
- For international sales from Australia, GST generally does not apply to exported goods.
Displaying tax correctly
How tax is displayed affects customer trust and compliance:
- B2C (consumers): display prices inclusive of tax. Customers expect to see the total price they will pay. Hidden tax added at checkout is a cart abandonment driver.
- B2B (businesses): display prices excluding tax with a tax breakdown at checkout. Business customers typically need to see tax separately for accounting purposes.
- Checkout: always show a tax line item at checkout, even for tax-inclusive pricing, so customers can see the tax amount included in their total.
- Tax invoices: WooCommerce order emails and PDF invoices should include the tax amount, your tax registration number (VAT number, GST number), and your registered business address.
WooCommerce PDF invoices with tax
The default WooCommerce order emails do not generate tax-compliant invoices. For B2B customers or jurisdictions requiring formal tax invoices, install a PDF invoice plugin:
In the UK and EU, VAT invoices must have unique, sequential invoice numbers. WooCommerce order numbers are not sequential enough for this purpose — gaps appear when orders are cancelled. Use a PDF invoice plugin that generates separate sequential invoice numbers independent of WooCommerce order numbers.
Need WooCommerce tax configured correctly for your store?
Simple Automation Solutions configures WooCommerce tax settings, installs tax automation services, and ensures compliant invoice generation for online stores worldwide.
Frequently asked questions
Do I need to collect VAT on international sales from the UK?+
Post-Brexit, UK businesses selling to EU consumers may need to register for VAT in EU countries or use the EU OSS (One Stop Shop) scheme if their sales to EU consumers exceed EUR 10,000 per year. For digital services sold to EU consumers, the OSS scheme simplifies collection and filing. For physical goods, import VAT applies to goods entering the EU, and the responsibility for collecting this varies depending on the delivery terms. This is a complex area — consult a tax adviser familiar with post-Brexit e-commerce compliance.
Should WooCommerce prices be entered including or excluding tax?+
Enter prices excluding tax, then configure WooCommerce to display them including tax to customers. This separation makes it much easier to manage your prices and apply different tax rates for different regions or tax classes. If you enter prices including tax, the base price changes whenever the tax rate changes (e.g. a temporary VAT reduction). Entering prices excluding tax keeps your base product price clean and tax is calculated on top based on the applicable rate.
How do I handle tax for digital products sold internationally?+
Digital products (ebooks, software, online courses) are subject to destination-based digital services tax in most jurisdictions. In the EU, digital services sold to consumers are subject to the buyer country VAT rate — the EU OSS scheme allows a single registration to cover all EU member states. In Australia, GST applies to digital goods sold to Australian consumers by overseas businesses over AUD 75,000 in sales. In the US, digital goods are taxable in most states but the rules vary. A digital tax automation service (TaxJar, Avalara) is strongly recommended for stores selling digital products internationally.
