Editorial Policy
Money decisions are serious, so we hold our content to a high bar. Here is exactly how we research, write, review and maintain everything on TopicDrill.
Our standards
Every calculator and guide on TopicDrill exists to help you make a clearer financial decision. We aim for content that is accurate, genuinely useful, easy to understand, and honest about its limits. We would rather say less and be right than pad a page to look authoritative.
How our calculators are built
Each calculator runs on a transparent formula. The maths behind a tool, the standard amortization, compounding, or tax formula it uses, is documented in plain language in the “How we calculate this” section on the page itself. We state our assumptions openly (for example, a fixed interest rate, or that figures exclude fees) so you know what the result does and does not account for.
How we research and write
We start from the real questions people ask about a topic and build the page around them. Where a page states a number, a contribution limit, a tax band, an interest rate, we check it against the primary source, such as a government or regulator website, and we link to that source so you can verify it yourself.
Review and fact-checking
Content is reviewed before publication and checked for accuracy, clarity and balance. We avoid hype, we do not invent statistics, and we flag when something depends on your personal circumstances. Calculators are tested against worked examples to confirm the numbers behave correctly.
Keeping content current
Finance changes, tax bands, contribution limits and typical rates move over time. We review pages on a regular cycle and update them when the underlying rules change. Each page shows when it was last reviewed so you can judge how current it is.
Not financial advice
Our tools and guides are for general information and education. They are not personal financial, tax, legal or investment advice. For decisions that matter, speak to a qualified professional who can consider your full situation. See our disclaimer for more.
Corrections
If you spot something wrong or out of date, please tell us through our contact page. We take corrections seriously and fix verified errors promptly.