Registering for SA failing

ianG

I am on the HMRC site and they have sent me a letter asking for my SA for tax year 2016/2017. I had previously registered as a self employed tutor btw back in Oct last year. However when I log in and look at the 'services' I do not see SA but when I try registering for this service it tells me I cannot do it or something is wrong with the UTR and/or NI number (but I know these are correct!).

The tax helplines are off right now but just wondering if I am missing something obvious here please?

chrismac1

Never overlook the possibility of HMRC error. For example they quite often key in the wrong post code. In one case I had, the client's postcode was shown as " ". This is despite the fact that the postcode field in the SA application is mandatory, so clearly at some point HMRC had the correct post code.