Legacy (v0)
Retrieve a tax category
Returns one tax category from Fluid’s shared tax-code catalogue by its numeric ID. The catalogue is the same for every company. The response says whether the category has sub-categories, whether it is selectable (only categories with a tax code can be assigned to a product), and names its parent. Requires a company admin Bearer token with the orders.view permission. Returns 404 when no category has that ID.
GET
/
api
/
tax_categories
/
{id}
Retrieve a tax category
curl --request GET \
--url https://api.fluid.app/api/tax_categories/{id} \
--header 'Authorization: Bearer <token>'import requests
url = "https://api.fluid.app/api/tax_categories/{id}"
headers = {"Authorization": "Bearer <token>"}
response = requests.get(url, headers=headers)
print(response.text)const options = {method: 'GET', headers: {Authorization: 'Bearer <token>'}};
fetch('https://api.fluid.app/api/tax_categories/{id}', options)
.then(res => res.json())
.then(res => console.log(res))
.catch(err => console.error(err));<?php
$curl = curl_init();
curl_setopt_array($curl, [
CURLOPT_URL => "https://api.fluid.app/api/tax_categories/{id}",
CURLOPT_RETURNTRANSFER => true,
CURLOPT_ENCODING => "",
CURLOPT_MAXREDIRS => 10,
CURLOPT_TIMEOUT => 30,
CURLOPT_HTTP_VERSION => CURL_HTTP_VERSION_1_1,
CURLOPT_CUSTOMREQUEST => "GET",
CURLOPT_HTTPHEADER => [
"Authorization: Bearer <token>"
],
]);
$response = curl_exec($curl);
$err = curl_error($curl);
curl_close($curl);
if ($err) {
echo "cURL Error #:" . $err;
} else {
echo $response;
}package main
import (
"fmt"
"net/http"
"io"
)
func main() {
url := "https://api.fluid.app/api/tax_categories/{id}"
req, _ := http.NewRequest("GET", url, nil)
req.Header.Add("Authorization", "Bearer <token>")
res, _ := http.DefaultClient.Do(req)
defer res.Body.Close()
body, _ := io.ReadAll(res.Body)
fmt.Println(string(body))
}HttpResponse<String> response = Unirest.get("https://api.fluid.app/api/tax_categories/{id}")
.header("Authorization", "Bearer <token>")
.asString();require 'uri'
require 'net/http'
url = URI("https://api.fluid.app/api/tax_categories/{id}")
http = Net::HTTP.new(url.host, url.port)
http.use_ssl = true
request = Net::HTTP::Get.new(url)
request["Authorization"] = 'Bearer <token>'
response = http.request(request)
puts response.read_body{
"tax_category": {
"id": 1583,
"code": "PS081282",
"title": "Copy and printer paper",
"has_children": false,
"selectable": true,
"parent_id": 1577,
"parent_title": "Paper products"
},
"meta": {
"request_id": "5f0c2b9e-3d41-4a7e-9b12-6e8d4c0a7f31",
"timestamp": "2026-09-30T14:05:12Z"
}
}{
"message": "<string>"
}⌘I
Retrieve a tax category
curl --request GET \
--url https://api.fluid.app/api/tax_categories/{id} \
--header 'Authorization: Bearer <token>'import requests
url = "https://api.fluid.app/api/tax_categories/{id}"
headers = {"Authorization": "Bearer <token>"}
response = requests.get(url, headers=headers)
print(response.text)const options = {method: 'GET', headers: {Authorization: 'Bearer <token>'}};
fetch('https://api.fluid.app/api/tax_categories/{id}', options)
.then(res => res.json())
.then(res => console.log(res))
.catch(err => console.error(err));<?php
$curl = curl_init();
curl_setopt_array($curl, [
CURLOPT_URL => "https://api.fluid.app/api/tax_categories/{id}",
CURLOPT_RETURNTRANSFER => true,
CURLOPT_ENCODING => "",
CURLOPT_MAXREDIRS => 10,
CURLOPT_TIMEOUT => 30,
CURLOPT_HTTP_VERSION => CURL_HTTP_VERSION_1_1,
CURLOPT_CUSTOMREQUEST => "GET",
CURLOPT_HTTPHEADER => [
"Authorization: Bearer <token>"
],
]);
$response = curl_exec($curl);
$err = curl_error($curl);
curl_close($curl);
if ($err) {
echo "cURL Error #:" . $err;
} else {
echo $response;
}package main
import (
"fmt"
"net/http"
"io"
)
func main() {
url := "https://api.fluid.app/api/tax_categories/{id}"
req, _ := http.NewRequest("GET", url, nil)
req.Header.Add("Authorization", "Bearer <token>")
res, _ := http.DefaultClient.Do(req)
defer res.Body.Close()
body, _ := io.ReadAll(res.Body)
fmt.Println(string(body))
}HttpResponse<String> response = Unirest.get("https://api.fluid.app/api/tax_categories/{id}")
.header("Authorization", "Bearer <token>")
.asString();require 'uri'
require 'net/http'
url = URI("https://api.fluid.app/api/tax_categories/{id}")
http = Net::HTTP.new(url.host, url.port)
http.use_ssl = true
request = Net::HTTP::Get.new(url)
request["Authorization"] = 'Bearer <token>'
response = http.request(request)
puts response.read_body{
"tax_category": {
"id": 1583,
"code": "PS081282",
"title": "Copy and printer paper",
"has_children": false,
"selectable": true,
"parent_id": 1577,
"parent_title": "Paper products"
},
"meta": {
"request_id": "5f0c2b9e-3d41-4a7e-9b12-6e8d4c0a7f31",
"timestamp": "2026-09-30T14:05:12Z"
}
}{
"message": "<string>"
}