by King_Maker on Mon Apr 25, 2005 7:37 am
It depends on what you are selling.
If it's second hand personal stuff, this is more likely to be classed as a hobby and not taxable - but nor are any losses claimable.
As you are already a taxpayer, any profit will be taxable at 22% (and 40%, if relevant). You will also be liable to Class 2 & Class 4 National Insurance if your profits are large enough.
You need to register with the IR within 3 months of commencement of your new business - £100 penalty for non-compliance.
You may wish to consider whether a limited company is a better option.