What are the ramifictions of a company that hasn't earned during a tax year? Are you still expected to pay anything at the end of the tax year (at least in terms of a salary to yourself)?
What pjc50 is correct, but might help to be more specific. If you literally mean its had 0 revenue and 0 expenses, then its basically a dormant company and you can file so.
However, if you've ran the company in previous years, even if you've taken a year off and had 0 incoming revenue, you may have other taxes to pay. There wouldnt be any corporation tax as theres no profit, but you may have some very small expenses like bank fees, maintenance of servers, subscriptions, etc that might be left over. So you wouldnt be dormant, you'd be a loss making company, but still active.
If you had a big chunk of money in the biz bank account and still paid yourself, there would be taxes on that, both on the company and personal side depending on how you paid yourself.
I wouldnt recommend setting up a Ltd company to literally do nothing with it though, 0 revenue and 0 expenses, you're not really benefitting for any reason.
You're not required to pay yourself anything in particular. If you do, then you have to pay NICs and tax; you may want to pay NICs even if you're not earning for tedious pension reasons, but that's not specific to the company structure.
