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Practical guides to mortgages, UK tax, math and more.

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How Mortgage Refinancing Actually Works (and When It Saves Money)

Refinancing replaces your existing home loan with a new one under different terms. Here is the realistic math on closing costs, break-even timelines, and how to avoid costly term traps.

October 18, 2026 · 6 min read

How UK VAT Works: A Plain-English Guide for Freelancers and Shoppers

Everything you need to know about UK Value Added Tax. Learn how the 20% standard rate is calculated, how to extract VAT from gross prices, and when registration is mandatory.

October 21, 2026 · 5 min read

How to Work Out a Percentage Increase Without a Calculator

Step-by-step mental math methods to calculate percentage increases, discounts, and tips in seconds using benchmark chunks: 10%, 5%, and 1%.

October 23, 2026 · 4 min read