Editorial policy
Our editorial policy sets out how InvoiceMakerHQ researches, checks and updates its guides, templates and country pages. Facts about law, tax rates and thresholds come only from official sources, linked on the page. Every page shows when it was checked, and every fact is checked against the source linked on the page before it is published.
How we research
Facts about law, tax rates, thresholds and deadlines come only from official sources: tax authorities and government websites, such as HMRC, the Canada Revenue Agency, IRAS and the Federal Tax Authority. We do not rely on other invoicing sites, forums or search snippets for those facts, and if we cannot confirm something on an official page, we leave it out.
Sources and Checked dates
Each page that states a rule links the official source it came from, in plain text, so you can read it yourself. Pages also show a Checked date with the month and year we last confirmed the facts against those sources. If a source cannot be reached when we check, we say so rather than guess.
Review cycle
We review every guide and country page at least every six months. We also review a page whenever a rate or rule it covers changes, such as a new VAT rate or a changed registration threshold. When we update a page, we change its Updated date and, if the facts were rechecked, its Checked date.
Writing tools and fact checking
We may use software, including AI writing tools, to help draft or edit text. We do not publish AI generated facts without checking them. Every fact is checked against the source linked on the page, and anything we cannot match to that source is removed.
Examples and sample documents
Sample invoices and worked examples use invented businesses, people and addresses, and example prices that are labeled as examples. Tax numbers in samples follow the real format with dummy digits. We do not publish statistics we cannot source, testimonials or invented surveys.
Independence
InvoiceMakerHQ is a WhizInvoice product. WhizInvoice, our invoicing app, and WhizQuote, our quote maker, are our sister products, and we label them as ours wherever they appear. We mention them only where they help with the task on the page, never as a condition of using our tools.
Corrections
If you find an error, email hello@whizinvoice.com with the page, the sentence, and a link to the official source if you have one. We check every report. When we correct a fact, we update the page and its dates, and fix the same fact on any other page where it appears.