How to start investing in the UK with an ISA
Stocks and shares ISAs, index funds, and a path from your first £25 to a simple portfolio. Not a pile of articles.
Start with these
All guidesHow to Start Investing in the UK: A Complete Beginner’s Guide
Starting to invest is less about picking the perfect stock and more about getting a few basics in place first. Here is the actual order of operations.
Read guideIndex Funds Explained: The Simplest Way to Invest
An index fund lets you invest in hundreds of companies at once, without picking any yourself. Here is how that actually works.
Read guideVanguard vs Hargreaves Lansdown UK: Which Platform Should You Choose?
Vanguard and Hargreaves Lansdown are two of the UK's biggest investing platforms, but they work very differently. This guide compares fees, fund choice, ISAs, and which suits different types of investor.
Read guideETFs vs Index Funds: The Difference (and Whether It Matters)
Both track an index cheaply; one trades like a share, one prices once a day. For most UK monthly investors the platform’s fee structure decides it.
Read guideCash ISA vs Stocks & Shares ISA: Which Should You Actually Use?
The cash vs stocks & shares ISA question has an unusually clean answer — it depends almost entirely on when you will need the money.
Read guideHow to Open a Stocks and Shares ISA in the UK: Complete Step-by-Step Guide
Opening a stocks and shares ISA takes about 15 minutes online. You'll need your National Insurance number, proof of identity, and a UK bank account. This guide walks you through choosing a provider, checking your eligibility, and funding your account.
Read guideWhy a path, not just a blog
Most investing content assumes you already know the basics, or throws advanced strategy at total beginners. Plain Investing is built as a sequence — each guide builds on the last, so you always know what to read next.