@HelloCrypto:
Next to the "Tax year" label, you will find a link called "custom date range".
Use it if you want to create a tax report from 1 April to 31 March.

At the end you will see the total calculated gain for the tax period.
You can just subtract £11,500 from it and multiply it with your tax rate.
But I will put a Capital Gains Tax Allowance on the to do list to make it easier


@Reynaldo:
You mean a %-value for the PnL?
Sure, I will add it.


@happy9z:
Looks like your BCH transactions are missing.
You should add an "Income" of the amount of BCH you received on the day of the fork.


@hgmichna:
Which local wallet are you using?
If it supports CSV exports, it should be very easy to import all transactions using the Excel oder Custom Exchange import.
Or just send us a CSV file and we will create an import for it.


@Daled12:
You are right. Each coin has it's own price.
Usually the spread should be <1%, but for some exotic coins with a low trade volume (or older transactions < 2015), it can be higher.
Using the "Best Price" setting, this spread will be ignored and the price of the higher volume coin will be used.
That's why I recommend to use this setting for all gains and tax reports.

Best
Dario