diff --git a/.env b/.env
index ce2a6b03..f0fbd306 100644
--- a/.env
+++ b/.env
@@ -143,7 +143,8 @@ PROVIDER_TME_CURRENCY=EUR
 PROVIDER_TME_LANGUAGE=en
 # The country to get results for
 PROVIDER_TME_COUNTRY=DE
-# Set this to 1 to get gross prices (including VAT) instead of net prices
+# [DEPRECATED] Set this to 1 to get gross prices (including VAT) instead of net prices
+# With private API keys, this option cannot be used anymore is ignored by Part-DB. The VAT inclusion depends on your TME account settings.
 PROVIDER_TME_GET_GROSS_PRICES=1
 
 # Octopart / Nexar Provider:
diff --git a/src/Services/InfoProviderSystem/Providers/TMEClient.php b/src/Services/InfoProviderSystem/Providers/TMEClient.php
index 0e32e9a6..d4df133e 100644
--- a/src/Services/InfoProviderSystem/Providers/TMEClient.php
+++ b/src/Services/InfoProviderSystem/Providers/TMEClient.php
@@ -50,6 +50,16 @@ class TMEClient
         return $this->token !== '' && $this->secret !== '';
     }
 
+    /**
+     * Returns true if the client is using a private (account related token) instead of a deprecated anonymous token
+     * to authenticate with TME.
+     * @return bool
+     */
+    public function isUsingPrivateToken(): bool
+    {
+        //Private tokens are longer than anonymous ones (50 instead of 45 characters)
+        return strlen($this->token) > 45;
+    }
 
     /**
      * Generates the signature for the given action and parameters.
diff --git a/src/Services/InfoProviderSystem/Providers/TMEProvider.php b/src/Services/InfoProviderSystem/Providers/TMEProvider.php
index 61944b7d..32fc0c72 100644
--- a/src/Services/InfoProviderSystem/Providers/TMEProvider.php
+++ b/src/Services/InfoProviderSystem/Providers/TMEProvider.php
@@ -36,12 +36,19 @@ class TMEProvider implements InfoProviderInterface
 
     private const VENDOR_NAME = 'TME';
 
+    /** @var bool If true, the prices are gross prices. If false, the prices are net prices. */
+    private readonly bool $get_gross_prices;
+
     public function __construct(private readonly TMEClient $tmeClient, private readonly string $country,
         private readonly string $language, private readonly string $currency,
-        /** @var bool If true, the prices are gross prices. If false, the prices are net prices. */
-        private readonly bool $get_gross_prices)
+        bool $get_gross_prices)
     {
-
+        //If we have a private token, set get_gross_prices to false, as it is automatically determined by the account type then
+        if ($this->tmeClient->isUsingPrivateToken()) {
+            $this->get_gross_prices = false;
+        } else {
+            $this->get_gross_prices = $get_gross_prices;
+        }
     }
 
     public function getProviderInfo(): array