CalcAI

Guides & Articles

Plain-English explainers on UK tax, energy savings, and personal finance — written and reviewed by qualified professionals.

Coming soon

Publishing May 2026
Solar

How Much Can You Save with Solar Panels in 2026?

A practical walkthrough of the UK solar payback calculation — irradiation zones, SEG rates, and what 'system size' really means for your roof.

Property

Stamp Duty Calculator Explained: SDLT, LBTT & LTT

England, Scotland, and Wales each have different property transaction taxes. Here's what the rates are, how FTB relief works, and the additional-dwelling surcharge.

MTD

Making Tax Digital 2026: Are You Affected?

MTD for Income Tax starts 6 April 2026 for sole traders and landlords earning over £50,000. Here's everything you need to do before the deadline.

Heat pumps

Heat Pumps & the £7,500 BUS Grant — Complete UK Guide

Is a heat pump right for your home? We break down the Boiler Upgrade Scheme, SCOP explained, and which fuel switchers get the best return.

Tax & Pay

UK Take-Home Pay 2026/27: Every Deduction Explained

Income tax bands, NI thresholds, student loan plans, and the personal allowance taper — a line-by-line breakdown of your payslip.

Pensions

Salary Sacrifice vs Relief-at-Source Pensions: Which Is Better?

Both save tax, but salary sacrifice also saves NI. We work through a worked example at £50k, £80k, and £110k — including the 60% tax trap.

Want to be notified when articles publish?

Use one of our calculators and opt in to updates — we'll email you when relevant guides go live.

Try a calculator now