We are often asked about whether to operate through a company or as a sole trader

The first thing to consider here is not tax related.
If the type of business you are engaged in leaves you open to be sued for substantial damages in the event of errors or mistakes then you should consider trading through a limited company.
This can ensure that your personal assets are not exposed in the event of business failure.

There may also be commercial requirements to operating as a company.

On to tax and admin considerations –

To make it worthwhile to trade through a company, you should be making substantially greater profits than what you need to live on in a given tax year.
Otherwise, there is no real advantage to operating through a company as all funds will need to be drawn down and will be subject to income tax in your hands in any case.
There are also greater admin and compliance costs through operating as a company.