Editorial Standards

People use Xplosole's calculators and guides to make real decisions about mortgages, savings, solar panels, taxes and job applications. This page explains how we make them, where our figures come from, and what to do if you find a mistake.

Who we are

Xplosole is built, written and maintained by the Xplosole team. We write the code for every tool and the text of every guide, and we use AI tools to help with drafting and programming. Nothing is published on the strength of an AI's word: figures come from the calculation engines described below, and facts from the sources we name.

Calculators

• Standard formulas. Each calculator uses the method lenders, tax authorities or engineers use: for example, the standard repayment formula for mortgages and loans. Each page explains its method under “How we calculate this”.
• Official sources, named and dated. Rates, prices and thresholds come from the organisation that sets or measures them: for example the US Energy Information Administration, Ofgem, the UK government's energy statistics, national tax authorities, and the European Commission's PVGIS for solar output. The calculator page names the source and the period the figure covers.
• Tested against known answers. Before a calculator is published, its engine is checked against worked examples with known results, such as published mortgage payments and hand-worked tax and solar examples. Those tests run again whenever the code changes.
• Reviewed and dated. Each finance calculator shows when it was last reviewed. When a source publishes new figures (a new price cap, a new tax year), we update the data and the date.
• Estimates, not advice. Results are for planning. A lender, installer, accountant or tax authority will have the final figures for your situation, and we say so on each page.

Guides and articles

• Worked examples and tables are produced by the same tested engines as our calculators, so a guide and its calculator always agree.
• Facts about laws, rates and schemes are checked against the official source and linked or named in the article.
• Where something depends on assumptions (future electricity prices, investment returns), we state the assumption and show how the answer changes if it's different.
• Every guide shows the date it was published or last revised.

AI tools

Our AI writing, career and legal tools produce drafts for you to check, not finished advice. They are instructed to use only the facts you give them, and some (such as the CV builder) point out figures the AI added so you can check them. Legal tools state the jurisdiction they wrote for and carry a disclaimer: their output is general information, not legal advice, and should be reviewed by a lawyer licensed where it applies. How your input is handled is set out in our Privacy Policy.

Corrections

If you find a wrong figure, an outdated rate or anything else that isn't right, please tell us through the contact page or at contact@xplosole.com. We check every report against the source, correct the tool or article, and update its review date.

Advertising and independence

• Xplosole is free and funded by advertising served by Google AdSense.
• Advertisers have no say in our tools, results or articles, and nothing on the site is sponsored.
• Ads are kept apart from tool results and never open a page or window unless you click them.
• We don't publish made-up reviews, ratings or testimonials.

More about us: About Xplosole · Terms of Service