Your warehouse choice can now change whether Shopify charges VAT at checkout. Shopify UK VAT calculations for orders shipping to Great Britain now use the fulfillment location selected by order routing. For merchants with stock inside and outside the UK, that makes routing a customer-facing tax decision. Here’s how to audit the affected orders, test your fallback routes and avoid a checkout promise your fulfillment operation cannot keep.
What changed in Shopify UK VAT calculations?
Shopify’s October 23 fulfillment-location VAT update says that VAT on orders shipping to Great Britain now follows the fulfillment location selected by order routing. Shopify describes this as the same location-based approach used for orders shipping to the United States.
The consequential case is specific: an order totals more than £135 before tax and shipping, and routing assigns it to a location outside the UK. Shopify treats that order as an import and doesn’t charge VAT at checkout under the updated calculation. Having another active location in the UK does not change that outcome.
The announcement also defines what remains unaffected:
- Orders of £135 or less.
- Orders shipping to Northern Ireland.
- Existing orders.
This is an update to Shopify’s tax calculation behavior, not an announcement that import VAT obligations have disappeared. Keep that distinction clear when you brief customer service. A checkout without VAT is not, by itself, proof that the customer has nothing else to pay.
Our view: mixed-location merchants should review this before their next promotion. A store can have correct tax registrations and still create an unexpected checkout result because its stock routes overseas.
Shopify UK VAT now needs an order-routing audit
Order routing determines which fulfillment location Shopify selects for an order. Merchants often review it for delivery speed or stock availability. This update adds a reason for the person responsible for tax to review it too.
Consider a hypothetical merchant with a UK warehouse and an overseas warehouse. Both hold the same product. A Great Britain order above the threshold routes overseas because of the store’s routing configuration or available inventory. Under the announced change, the existence of UK stock elsewhere in the business does not automatically make that order a domestic transaction for checkout VAT.
The practical question is no longer simply, “Do we have a UK location?” It is, “Which location will this basket actually use?”
Start with the route, not the tax checkbox
Map the locations that can fulfill Great Britain orders. For each, record its actual country and whether it holds stock available to sell. Then inspect the routing priorities and any fulfillment app or integration involved in order assignment.
Pay particular attention to fallback behavior. A route that works as expected while UK stock is plentiful may behave differently when a popular variant sells out. That makes the last available unit worth testing, not just a fully stocked basket.
Do not change a warehouse address to obtain a preferred tax result. Store configuration should describe the real operation. If the goods ship from outside the UK, your checkout and delivery terms need to accommodate that fact.
Choose a fulfillment promise your operation can support
Shopify’s announcement says merchants can assign affected orders to a UK location through order routing to charge VAT at checkout. That is useful if you genuinely intend to fulfill those orders domestically. It is not a reason to route orders to a warehouse that cannot ship them.
Prioritize UK fulfillment where stock supports it
For merchants whose Great Britain offer depends on domestic fulfillment, we would review UK routing priority alongside inventory availability. The trade-off is straightforward: domestic routing may constrain which products you can confidently sell with that delivery promise.
Decide what happens when UK stock runs out. You might stop selling that variant into the market until replenishment arrives. Alternatively, you might permit overseas fulfillment with different delivery information. Make that choice deliberately rather than allowing an inventory shortage to decide it for you.
Keep overseas fulfillment, but confirm the import arrangement
Some merchants need overseas stock to offer their full range. That is a valid operating model. Before changing checkout settings, confirm who bears import charges and how those charges will be collected under your actual shipping arrangement.
Ask your tax adviser and carrier to review the intended process. Then verify that your Shopify configuration supports it. The supplied announcement is not a complete guide to import-tax collection, so don’t infer eligibility or a working setup from the headline alone.
We would avoid a blanket “all taxes included” promise until a test order and the carrier arrangement support it. Equally, don’t automatically tell every international customer they will pay on delivery. The wording must match the service you actually use.
Test the threshold and the warehouse fallback
A checkout test with a single product and abundant UK inventory will not expose every routing problem. Build a test sheet around the boundaries stated in Shopify’s update, then add the inventory conditions that could alter fulfillment.
For each scenario, record the destination, order value before tax and shipping, selected fulfillment location and checkout VAT result. Keep screenshots internally so finance and operations can review the same evidence.
- Great Britain, above £135, UK route: verify the intended domestic VAT treatment against your tax setup.
- Great Britain, above £135, overseas route: check the announced import treatment and review the customer’s delivery-charge expectations.
- Great Britain, exactly £135 and below: confirm that the update has not changed the existing behavior for these orders.
- Northern Ireland: test separately because the announcement excludes these destinations.
- UK stock unavailable: establish whether routing switches overseas, prevents purchase or produces another operational outcome.
- Existing orders: keep them separate from new-order checks because Shopify says they are unaffected.
Also test baskets whose items cannot all ship from the same location. The supplied announcement does not explain mixed-location allocation in detail. Treat that as a question to resolve with Shopify and your tax adviser, rather than assuming the whole basket behaves like a single-location order.
Discounted baskets deserve a check as well. Use Shopify’s displayed order values and confirm how the threshold applies in your configuration. Don’t substitute a product’s original ticket price for the order amount you need to assess.
Keep customer service ahead of the checkout change
The customer sees a total and a delivery promise. They do not see the routing decision behind them.
Once you have verified the affected paths, review your shipping policy and any tax wording near purchase. Check order emails too, particularly if their copy assumes every Great Britain order leaves a UK warehouse.
Support staff need a practical way to investigate questions. Give them access to the assigned fulfillment location and a documented explanation of the relevant shipping terms. Avoid a generic response that equates no checkout VAT with no tax liability.
Have finance approve the explanation for affected orders. Customer service should not have to interpret customs treatment while a shopper waits for an answer.
Assign ownership before changing routing
We would treat this as a joint operations and finance task. Operations should verify where goods can ship from. Finance should approve the intended tax treatment, while the ecommerce team tests what the customer sees.
Start by documenting the current routing configuration. Save the test results before making changes, then repeat the same scenarios afterward. That gives the team a useful comparison if a checkout result changes unexpectedly.
A new app would not be our starting point. The immediate problem is to understand an existing platform behavior and its interaction with your fulfillment model. Consider additional tooling only after you can name a specific gap that the current setup cannot address.
After changes go live, review affected Great Britain orders above £135, especially those routed outside the UK. Compare their checkout treatment with the actual fulfillment location. Ask your adviser how to handle exceptions where fulfillment changes after purchase; the announcement does not establish what happens in every reassignment scenario.
The decision we would put in writing is simple: what should happen when UK stock cannot fulfill a Great Britain order? Once that answer is agreed, routing and customer-facing terms can follow the same policy.
Takeaways
- Shopify now uses the routed fulfillment location for the announced Great Britain VAT calculation.
- Orders above £135 before tax and shipping that route outside the UK receive the stated import treatment, even when the store also has a UK location.
- Test stock shortages and overseas fallback routes before changing customer-facing tax promises.
- Confirm import obligations with your tax adviser. No VAT at checkout does not mean no import charges.
Sources
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Frequently asked questions
Why is Shopify not charging VAT on an order above £135?
Under Shopify’s October 23 update, an order shipping to Great Britain that totals more than £135 before tax and shipping is treated as an import if routing assigns it to a location outside the UK. Shopify says VAT is not charged at checkout under that calculation. Check the selected fulfillment location and confirm the import arrangement with your tax adviser.
Does having a UK warehouse guarantee Shopify charges UK VAT?
No. For the affected orders, Shopify uses the location selected by order routing. A separate UK location does not override an overseas fulfillment assignment.
Does the fulfillment-location VAT update affect Northern Ireland?
Shopify says orders shipping to Northern Ireland are unaffected by this update. Orders of £135 or less and existing orders are also unaffected.
Should I route every Great Britain order to a UK warehouse?
Only if that matches your actual fulfillment operation. Review UK stock availability and decide what should happen when it runs out. Do not assign orders domestically merely to obtain a particular checkout tax result.
