: Ensure you are on the latest version, as database connection bugs are frequently patched in Release Updates
Corrupted cache can mimic Error 35.
HMRC often performs maintenance between 10 PM and 2 AM (UK time). If you see Code 35 only late at night, it is likely a scheduled outage. Try again during business hours. taxcalc error code 35
: Ensure you are on the latest version, as database connection bugs are frequently patched in Release Updates
Corrupted cache can mimic Error 35.
HMRC often performs maintenance between 10 PM and 2 AM (UK time). If you see Code 35 only late at night, it is likely a scheduled outage. Try again during business hours.
The following download link is available for your IP: 185.104.194.44 until 2025-12-15 10:13:55 GMT
https://nextfirmware.com/index.php?a=downloads&b=file&c=download&id=733&vtoken=733_1765793635_11fb8fa8e6e9d7d18fb0e2c8d1c9f1f9