Have you heard of Qazikoo EIS Shares?

steampowered

EIS tax relief is extremely attractive. 

As their option 3 points out, if you invest £20k and the investment becomes worthless, you've knocked £12.3k off your income tax bill. So you've only actually lost £7.7k. 

Of course, you need to be paying enough income tax to see the benefit.

That applies for any company which is going through an EIS compliant funding round - which is most funding rounds for early stage companies in the UK. If you go on a site like Seedrs there are lots of different options.

Personally I would not invest in Qazikoo, as I've never heard of them, and I think FinTech is a high risk and competitive space, where new entrants are up against both the banking incumbents and newer entrants like Starling, Monzo and Revolut. But I could be wrong - I'm sure people said the same thing about Revolut when they did their early stage EIS rounds and are now their investors are sitting on a 996% gain in the value of their shares.

If you have decided to go to down the route of making EIS investments, I would spread the investment across several different companies, as well as alongside more conventional stock market funds through a stocks & shares ISA. Early stage investing in private companies can be extremely lucrative but it is also extremely high risk, which is why the government encourages it through EIS, meaning you want to spread your eggs across a few different baskets.

Albermarle

Regarding EIS , you have to be aware of this issue , extracted from Bowlheads original post 
Also, if the company doesn't get off the ground and meet the qualifying criteria, HMRC will never give it the EIS clearance (or may give it, but later withdraw it) so that what you thought was an £8000 risk is actually a £20,000 one because you have to pay back the income tax relief and can't claim the losses against your income tax.