I'm rather puzzled as to how someone can claim to be self employed yet only work for one other company.
IR35 was set out to specifically exclude this.
In a nutshell if you provide services to one company only during a 24 month period you are deemed to be working for that company.
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History is much like an endless waltz: The three beats of war, peace and revolution continue on forever.
However history will change with my coronation - Mariemaia Khushrenada