Receive oversea royalty on books

I received oversea royalty on books which less than £4000 this year, do I need to claim as self employed? If so, how to fill the accounting details as I just simply receive a memo from publisher for the royalty yearly and that's all. Thanks in advance.

Hi Cathy Kwan,
Yes.  
Royalties are a form of self employment and should be declared on SA103 as part of the tax return, even if the royalties are from overseas.  
If the royalties from overseas have tax deducted in another country, you would also complete SA106 and claim a tax credit of up to 100% of the overseas tax paid.
Thank you.