I've heard all the nightmare stories about filing on-line, so I did mine the old fashioned way. I am v annoyed though, as I registered as self employed with them in August....December came, still no tax return form. I rang up, they said they'd sent one out in Aug, and would send a duplicate. Duplicate took over THREE WEEKS to arrive, and didn't have all the pages attached!!! They know I'm in employment as well as my little side-earner, but clever clogs did not send the employment pages. So I went on line and printed them off.
As I now don't trust the little blighters one inch, I am hand delivering my return today!