The service doesn't return tax data for the regions and countries listed below.

When a transaction assigns tax liability to one of these regions or countries, the API response doesn't return calculated tax data. In these cases, the response returns fields such as "tax_amount": 0, indicating that no tax data is available.

Countries without tax data

The following regions and countries don't return tax data:

Afghanistan (AF)
Åland Islands (AX)
Saint Barthélemy (BL)
Bermuda (BM)
Brunei (BN)
Caribbean Netherlands (BQ)
Bouvet Island (BV)
Cocos (CC)
Christmas Islands (CX)
Western Sahara (EH)
Falkland Islands (FK)
French Guiana (GF)
Guernsey (GG)
Gibraltar (GI)
Greenland (GL)
South Georgia (GS)
Hong Kong (HK)
British Indian Ocean Territory (IO)
Iraq (IQ)
North Korea (KP)
Kuwait (KW)
Cayman Islands (KY)
Libya (LY)
Macau (MO)
Montserrat (MS)
Norfolk Islands (NF)
Nauru (NR)
Saint Pierre and Miquelon (PM)
Pitcairn Islands (PN)
Qatar (QA)
Saint Helena (SH)
Svalbard (SJ)
San Marino (SM)
Somalia (SO)
Syria (SY)
Turks and Caicos Islands (TC)
French Southern and Antarctic Lands (TF)
Tokelau (TK)
Vatican City (VA)
British Virgin Islands (VG)
Wallis and Futuna (WF)
Samoa (WS)
Mayotte (YT)

Example: Hong Kong

The following example request and response demonstrates how the API behaves when a region or country doesn't return tax data.

Request

The following request creates a transaction with Hong Kong (HK) as the ship-to country:

{
    "transaction": {
        "currency_code": "EUR",
        "ship_to_address": {
            "country_code": "HK"
        },
        "transaction_lines": [
            {
                "product_class": "P",
                "amount": 100,
                "custom_id": "",
                "ship_from_address": { "country_code": "HK" },
                "seller_code": "seller"
            }
        ],
        "sellers": [
            {
                "seller_code": "seller",
                "country": "HK",
                "settings": {
                    "countries": {
                        "HK": {
                            "taxation": {
                                "is_seller_registered": true,
                                "physical": {
                                    "is_physical_tax_enabled": true
                                }
                            }
                        }
                    }
                }
            }
        ]
    }
}

Response

The API returns a response where the tax calculation data are present, but only "tax_amount": 0.00 is returned, indicating that no tax was calculated or applied:

{
    "transaction": {
        "ship_to_address": {
            "country_code": "HK",
            "tax_region": "HK"
        },
        "amount": 100.00,
        "required_fields": {
            "tax_required_fields": []
        },
        "tax_country_codes": "HK",
        "tax_amount": 0.00,
        "invoice_timestamp": "2026-01-15T17:31:29Z",
        "tax_liability_owner_codes": "",
        "transaction_lines": [
            {
                "reverse_charge": false,
                "amount": 100.00,
                "tax_rule_applied": "physical-tax",
                "unit_price": 100.00,
                "taxes": [],
                "tax_amount": 0.00,
                "tax_region": "HK",
                "tax_exempt": true,
                "tax_country_code": "HK",
                "line_key": "dpS3KnFVsBaOeBgN",
                "custom_id": "",
                "tax_address_kind": "ship_to_address",
                "ship_from_address": {
                    "country_code": "HK",
                    "tax_region": "HK"
                },
                "tax_engine": "oseries",
                "invoice_status": "R",
                "kind": "b2c",
                "product_class": "P",
                "custom_rules_applied": [],
                "line_num": 1,
                "is_seller_permanent": false,
                "quantity": 1.000000000000,
                "invoice_capable": false,
                "total_amount": 100.00,
                "seller_code": "seller",
                "tax_entity_name": "Hong Kong",
                "tax_supported": true
            }
        ],
        "discounts": [],
        "product_classes": "P",
        "billing_address": {
            "country_code": "HK",
            "tax_region": "HK"
        },
        "sellers": [
            {
                "settings": {
                    "countries": {
                        "HK": {
                            "taxation": {
                                "physical": {
                                    "is_physical_tax_enabled": true
                                },
                                "is_seller_registered": true
                            }
                        }
                    }
                },
                "seller_code": "seller",
                "country": "HK"
            }
        ],
        "tax_timestamp": "2026-01-15T17:31:29Z",
        "total_amount": 100.00,
        "currency_code": "EUR"
    }
}

In this example, the API populates other transaction fields as expected, but returns a tax amount of zero because tax data isn't available for this region or country.