Ensure you have notified them that your business is trading including any other service you may need (VAT, PAYE Scheme etc). Even HMRC will send out passwords in the post so not everything is immediately accessible.

Make sure you are appropriately insured for the business you are running from the first day.

This is surprisingly long winded and may need an appointment at a branch.

At the start it can be easy to overlook getting the best deal for utilities etc but this can make a huge difference to that first year bottom line profit so don’t sign up for convenience! Also check for any business discounts you can get.

Get the right professionals behind you. Its likely you will have a long term relationship with your Accountant, Human Resources (HR) and other advisors so make sure they are qualified and come recommended.