---
title: "DefaultTaxZoneStrategy"
generated: true
---
<GenerationInfo sourceFile="packages/core/src/config/tax/default-tax-zone-strategy.ts" sourceLine="15" packageName="@vendure/core" />

A default method of determining Zone for tax calculations. The strategy simply returns the default
tax zone of the Channel. In many cases you actually want to base the tax zone
on the shipping or billing address of the Order, in which case you would use the
[AddressBasedTaxZoneStrategy](/reference/typescript-api/tax/address-based-tax-zone-strategy#addressbasedtaxzonestrategy).

```ts title="Signature"
class DefaultTaxZoneStrategy implements TaxZoneStrategy {
    determineTaxZone(ctx: RequestContext, zones: Zone[], channel: Channel, order?: Order) => Zone;
}
```
* Implements: [`TaxZoneStrategy`](/reference/typescript-api/tax/tax-zone-strategy#taxzonestrategy)



<div className="members-wrapper">

### determineTaxZone

<MemberInfo kind="method" type={`(ctx: <a href='/reference/typescript-api/request/request-context#requestcontext'>RequestContext</a>, zones: <a href='/reference/typescript-api/entities/zone#zone'>Zone</a>[], channel: <a href='/reference/typescript-api/entities/channel#channel'>Channel</a>, order?: <a href='/reference/typescript-api/entities/order#order'>Order</a>) => <a href='/reference/typescript-api/entities/zone#zone'>Zone</a>`}   />




</div>
