import { createAdminClient } from '@spree/admin-sdk'

const client = createAdminClient({
  baseUrl: 'https://your-store.com',
  secretKey: 'sk_xxx',
})

// Making a category the default moves the flag off the previous one.
const taxCategory = await client.taxCategories.update('taxcat_UkLWZg9DAJ', {
  name: 'Apparel',
  is_default: true,
})

spree api patch /tax_categories/{id} -d '{"name":"Apparel","is_default":true}'

{
  "id": "taxcat_UkLWZg9DAJ",
  "name": "Apparel",
  "tax_code": null,
  "description": "Illo sapiente voluptatibus dignissimos autem.",
  "is_default": true,
  "created_at": "2026-01-15T12:00:00.000Z",
  "updated_at": "2026-01-15T12:00:00.000Z"
}