25/05/2026
The error “AxiosError: Request failed with status code 500” in the Rev360 portal means the request you made reached the server, but the Rev360 system failed to process it due to an internal server error. That is, the problem is from the Rev360 server side, not necessarily from you.
A 500 error is an Internal Server Error. It happens when Rev360 receives your request (login, filing, upload, submission, payment, etc.) but encounters a problem in processing it.
There are two possible options you have:
first (a) refresh the page and try again after a few minutes. Sometimes, temporary server congestion resolves itself
(b) log out and log in again, especially if your session may have timed out
(c) try another browser, preferably Microsoft Edge or Google Chrome, as some browsers perform better with the portal
(d) attempt the process during off-peak hours, such as early morning or late evening, when traffic on the portal is usually lighter.
(e) take a screenshot of the error message for reference and send a detailed complaint to [email protected] or call NRS at 0209 460 2700.
Second, in case the registration in the NRS portal for tax purposes is urgent, you can walk in into any Emerging Tax Office (ETO) nearest to you to process it in the tax office. Rev360 has issues here and there but the good news is that it is working.