Hello, Rick, I am Keith, one of the experts on Just Answer, and pleased to be able to help you with your question.
You are correct in your calculation of the Capital Gains Tax (CGT) rate of 10%. As you are going out of business you benefit from the Entrepreneurs' Relief which limits taxation to a flat rate of 10% as opposed to the normal 10% or 20% or a combination of the two rates depending on the individuals' income including the gain in the tax year of cessation.
I am at a slight loss as to your 'carry back' question. Any losses made in current year and any losses brought forward from previous years may be utilised against current year gains, just make sure you do not waste any of your 11.1K of Annual Exempt Amount (AEA).
By the by, why don't you just sell off the company as a going concern, you can even do it on eBay. It's much simpler than going through the palarver of a winding up, you just take your money out, leave a shell company and you might just get something for it into the bargain.
I do hope that you have found my reply of assistance.
I wouldn't say that, I negotiated the sale of a similar company for 500 quid for a friend. Buyers are always on the look out for established organisations.
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You will have to declare the capital gain and claim Entrepreneurs' Relief on your self assessment tax returns for the cessation/sale year and pay the appropriate tax as advised by HMRC.
Thank you for your support.