Based on your financial expertise, provide your response or viewpoint on the given financial question or topic. The response format is open.

Work on the side for my wife's company
My understanding (I am not a lawyer or tax expert) is that you are not allowed to work for free, but you can pay yourself minimum wage for the hours worked. There are probably National Insurance implications as well but I don't know. The main thing is, though, that if HMRC think that you've set up this system as a tax avoidance scheme then they're allowed to tax you as though all the income had been yours in the first place. If you are considering such a setup I would strongly advise you to hire a qualified small business accountant who will be familiar with the rules and will be able to advise you on what is and is not possible / sensible. Falling outside the rules (even inadvertently) leaves you liable to a lot of hassle and potentially fines etc.