Why You Should Hire a VAT Expert for Your Business in the UK It is important to hire a VAT expert for your business in the UK because it can be a complicated and confusing process. One of the biggest reasons is that the UK has a VAT regime that is different from the US. The UK's VAT regime is one of the most complicated in the world. A VAT expert can help you navigate this difficult process and make sure you are meeting all of the necessary VAT requirements.