Question 1

What is ProbablyBig?

Accepted Answer

ProbablyBig is a UK equity crowdfunding and startup investment platform. It lets everyday investors back early-stage founders through SEIS and EIS eligible raises, with up to 70% effective tax relief. The platform tagline is "Back founders before they're big." It is registered in England and Wales.

Question 2

What does ProbablyBig do?

Accepted Answer

ProbablyBig connects UK investors with early-stage startup founders raising capital under SEIS (Seed Enterprise Investment Scheme) and EIS (Enterprise Investment Scheme). Investors can back companies from as little as £500 and receive up to 50% income tax relief on SEIS investments and 30% on EIS investments.

Question 3

What is SEIS and how does it work on ProbablyBig?

Accepted Answer

SEIS stands for Seed Enterprise Investment Scheme. It is a UK government scheme offering up to 50% income tax relief on investments up to £200,000 per tax year into qualifying early-stage companies. On ProbablyBig, investors can browse live SEIS-eligible raises and invest from £500, claiming back up to half their investment through their self-assessment tax return.

Question 4

How much can I invest on ProbablyBig?

Accepted Answer

The minimum investment on ProbablyBig is £500 per campaign. There is no platform maximum, though SEIS tax relief caps at £200,000 invested per tax year and EIS at £1,000,000 (or £2,000,000 for knowledge-intensive companies).

Question 5

Is ProbablyBig regulated?

Accepted Answer

ProbablyBig is in the process of applying for FCA (Financial Conduct Authority) authorisation as an investment-based crowdfunding platform in the United Kingdom. All raises are conducted under applicable exemptions and investor promotions follow FCA financial promotion rules.

Question 6

What sectors does ProbablyBig cover?

Accepted Answer

ProbablyBig hosts raises across HealthTech, FinTech, CleanTech, EdTech, DeepTech, Consumer, and SaaS sectors, focusing on pre-Series A UK startups with strong founding teams.

Question 7

How does ProbablyBig compare to Crowdcube or Seedrs?

Accepted Answer

ProbablyBig charges a 5% success fee versus the typical 6–7% charged by legacy platforms such as Crowdcube and Seedrs. ProbablyBig focuses exclusively on early-stage SEIS and EIS raises, includes advance assurance support for founders, and has no upfront or listing fees.

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