I've searched high and low trying to clarify my situation - I'm sure I'm not unique so I'm hoping someone can help!
I'll try to keep it brief:
I work as a Registered Nurse and my placements are through an Agency.
Rather than the Agency pay me directly, I signed up with a Managed Limited Company (FPS) and I am paid a basic salary and the remaining portion of my earnings are paid as a dividend. The dividends make up the majority of my earnings.
I can only be paid by the Managed Limited Company once the Agency has sent them the funds for the work I have performed for one of their clients (ie a hospital). The Managed Limited Company then pays me as a Employee and Shareholder.
Each week I get a payslip which shows my wage and also the dividend paid to me. This includes income tax deductions as well corporate tax deductions and is also a Tax Voucher for the dividends.
I pay tax on all my salary and also on the dividends (although at a lower rate on the dividends - it is legit!).
In terms of applying for the HSMP - I meet all the requirements including the Previous Earnings.
However, where I am really confused is what I am classified as (Salaried Employee; Independent Contractor; Self Employed) and subsequently what documents to provide.
I don't actually run the Limited Company and I don't have a business bank account. I don't bill the Agency directly but rather complete a time sheet and they then forward the funds to the Limited Company who then pay me.
Confused yet?

Anyway, if anyone has had a similar situation and can offer come advice please let me know! I'd really, really appreciate it as my partner is pulling his hair out trying to work it out!