Self assessment major error

Dribiddi

I’ve made a big boo boo. 

I do deliveries in my spare time to supplement my income. Have always done a self assessment to keep my nose clean although I don’t earn much 
This year although I got reminders I never got round to doing one. My fault, just laziness and forgetfulness. Now I’ve got a late payment demand of £1200! I barely even earn that in a year via this income.
Will they take pity on me and reduce it?

Dazed_and_C0nfused

Get the return filed asap to avoid further penalties, pay anything owed (tax, NI etc) and appeal against the penalty.

You have nothing to lose and £1,200 to gain