A Future Business Media publication
Rational GB

Calm, evidence-led money decisions for people in Britain who would rather think than gamble.

Latest guides

Buying Guides Trading 212 vs InvestEngine vs Vanguard: Which Low-Cost Platform Wins A plain, fee-by-fee comparison of Trading 212, InvestEngine and Vanguard for UK ISA and SIPP investors. Real charges, real trade-offs, no hype. 9 min read How-To How to Open a SIPP in the UK: A Step-by-Step Guide for First-Timers A plain, step-by-step guide to opening a SIPP in the UK: who can open one, the tax relief, picking a platform, and your first contribution. 10 min read

Rational GB is for people in Britain who want to invest sensibly without being sold to. We cover the things most DIY investors actually need to get right: opening your first stocks and shares ISA or SIPP, picking low-cost index funds, and working out which investment platform suits how much you have and how often you’ll trade. Every recommendation is grounded in evidence and total cost, not in whatever fund a provider happens to be pushing this month.

If you’re somewhere between 25 and 55, saving steadily and trying to decide between brokers or between funds, this is written for you. We compare the major UK platforms on fees, features and quirks, explain how ISAs and SIPPs actually work, and walk through index investing in language you don’t need a finance degree to follow. No stock tips, no get-rich-quick angles, no panic when the market wobbles.

The stance is simple: think, don’t gamble. Markets go up and down, the financial press shouts about both, and most of that noise costs you money if you act on it. We’d rather help you build a plan you can stick to for decades and then leave it alone.