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CGT on shares and offsetting losses
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n15h
Posts: 230 Forumite


Hi, I am looking for some guidance and hopefully someone can help with this query on capital gains tax on some shares that i've sold, and whether it can be off-set by some losses made on some other shares. I have been fortunate to have a savings nest thanks to some inheritances I got some years ago and invested some of the money in shares in the AIM market and try my luck at investing. I work full time with an annual income of £32K per year and am a basic rate tax payer.
I had already maxed out my S&S ISA allowance at the time so I bought the shares in Company A, B and C using a share dealing account which charges £10 per trade. I have not sold these shares in Company B or C so they are still in my portfolio, but they are each a 100% loss and I will never see that £3500 again. The shares for either company cannot be traded on any share market as well.
I tried to work out how much CGT would be on the £40K profit and found a CGT calculator on Tax Scouts website https://taxscouts.com/calculator/capital-gains-tax/
This calculator shows that the CGT is £3740 based on the gain of £40K and annual income of £32K. A friend told me that if I made a loss on any shares, this loss can be offset against the tax and lower the amount of tax. So based on that, I am presuming that on the £3740, the losses of £1500 and £2000 would mean CGT of £240 i.e.: 3740 - (1500+2000).
I wanted to ask if any of this correct, including the CGT amount of £3740, whether the trade costs and shares losses can be offset against the CGT, and and how all of this needs to be recorded on a tax return. Any help or advice on this is much appreciated. Apologies if this is in the wrong forum!
I also saw on the Tax Scouts website that they can sort the self assessment out for a fee of £119, so am thinking of paying the fee and letting them work it all out. However, if it's simple to complete my own self assessment including calculate the CGT and offset the losses / tax, then I'm all for saving that £119.
Either way, I'm sure I'll learn something new from this post/forumites
Thanks in advance
- Bought shares in Company A in 2018 and sold them this year. It was a sizeable investment that paid off and the profit on sale of these shares is £40K.
- Bought shares in Company B in 2018 worth £1500 in 2018. The company no longer exists since 2020 and the shares have no value.
- Bought shares in Company C worth £2000 in 2019. The company ceased trading in 2020 and these shares have no value.
I had already maxed out my S&S ISA allowance at the time so I bought the shares in Company A, B and C using a share dealing account which charges £10 per trade. I have not sold these shares in Company B or C so they are still in my portfolio, but they are each a 100% loss and I will never see that £3500 again. The shares for either company cannot be traded on any share market as well.
I tried to work out how much CGT would be on the £40K profit and found a CGT calculator on Tax Scouts website https://taxscouts.com/calculator/capital-gains-tax/
This calculator shows that the CGT is £3740 based on the gain of £40K and annual income of £32K. A friend told me that if I made a loss on any shares, this loss can be offset against the tax and lower the amount of tax. So based on that, I am presuming that on the £3740, the losses of £1500 and £2000 would mean CGT of £240 i.e.: 3740 - (1500+2000).
I wanted to ask if any of this correct, including the CGT amount of £3740, whether the trade costs and shares losses can be offset against the CGT, and and how all of this needs to be recorded on a tax return. Any help or advice on this is much appreciated. Apologies if this is in the wrong forum!
I also saw on the Tax Scouts website that they can sort the self assessment out for a fee of £119, so am thinking of paying the fee and letting them work it all out. However, if it's simple to complete my own self assessment including calculate the CGT and offset the losses / tax, then I'm all for saving that £119.
Either way, I'm sure I'll learn something new from this post/forumites

Thanks in advance
Thousands of candles can be lit from a single candle, and the life of the candle will not be shortened. Happiness never decreases by being shared - Buddha
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Comments
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A friend told me that if I made a loss on any shares, this loss can be offset against the tax and lower the amount of tax. So based on that, I am presuming that on the £3740, the losses of £1500 and £2000 would mean CGT of £240 i.e.: 3740 - (1500+2000).
I think you have misunderstood your friend.
If there is an allowable loss then it would be offset against the other gain. Not the tax liability.
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Dazed_and_C0nfused said:A friend told me that if I made a loss on any shares, this loss can be offset against the tax and lower the amount of tax. So based on that, I am presuming that on the £3740, the losses of £1500 and £2000 would mean CGT of £240 i.e.: 3740 - (1500+2000).
I think you have misunderstood your friend.
If there is an allowable loss then it would be offset against the other gain. Not the tax liability.
On that website, it also mentions Negligible Value Claim - which seems more applicable to my situation as the shares of £2000 and £1500 are completely worthless i.e negligible.Thousands of candles can be lit from a single candle, and the life of the candle will not be shortened. Happiness never decreases by being shared - Buddha0 -
You make a negligible value claim on the shares in B and C of what you paid for the shares, including acquisition costs, and set that loss against the gain on shares in A.2
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Cheers, I get it now that the losses are not against CGT but instead would be offset against the gain made i.e. the profits from Company A shares, so that tax is charged on a smaller gain rather than a larger gain.
I've never done a self assessment before. Is there any guidance available on how to complete a self assessment for shares, or am I better off going to an accountant?Thousands of candles can be lit from a single candle, and the life of the candle will not be shortened. Happiness never decreases by being shared - Buddha0 -
You can have a red through the paper 2019:20 CGT pages and accompanying notes on gov.uk.
https://www.gov.uk/government/publications/self-assessment-capital-gains-summary-sa1080
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