Transparency
Corrections journal
CalcBusiness publishes material corrections to formulas, rates, datasets, source links, and explanatory claims here. This journal records only confirmed changes and the evidence used to verify them.
Correction policy
- Send the page URL, the suspected issue, the expected value or wording, and a primary source when available.
- CalcBusiness checks the report against the relevant formula, dataset, or official publication.
- Confirmed material changes are published with the affected page, change summary, and correction date.
Report an issue at support@calcbusiness.com. Do not send confidential client or tax documents.
Journal
| Date | Affected page | Change |
|---|---|---|
| 2026-10-11 | UK VAT, Australian GST, currency converter and image tools | Correct tax extraction at rates of 100% or above, reconcile amounts to cents, display GBP/AUD, describe the supported tax operation and the fixed dated currency table accurately, use English controls on English image pages, and initialise shared calculator URLs after hydration to avoid a loading error. |
| 2026-10-11 | Canadian sales tax | Round each tax line to cents before summing the total. Check small amounts against invoice calculations and reconcile reverse calculations with the entered gross amount. |
| 2026-10-11 | Invoice PDF | Separate the final tax row from the TOTAL band and use French currency formatting on French invoices. |
| 2026-10-11 | Quebec tax workflow | Align French content and document links. Clarify registration thresholds and exceptions, distinguish deposits from advances, qualify rate-transition guidance and remove unsupported claims using CRA and Revenu Québec sources. |
| 2026-10-03 | Quotes and invoices | Preserve mixed line taxes during conversion. Separate Quebec GST/QST for standard taxable lines; do not add a global second tax to complete line-rate overrides. |
| 2026-10-03 | Payment receipts | Include earlier payments in the remaining balance. Require confirmation of the actual payment before creating a receipt. |
| 2026-10-03 | US client guide | Clarify export exceptions and the W-8BEN’s limits. Link directly to the CRA export memorandum and IRS source-of-service-income guidance. |
| 2026-10-03 | Invoice backups | Keep existing invoices and drafts when importing, validate drafts before writing, and preserve increasing document counters. |
Why we publish corrections
The tools on this site deal with money — take-home pay, taxes, invoices, and pricing — where a wrong figure has real consequences. Being open about mistakes is part of being worth trusting with those numbers. Rather than quietly editing a page when an error is found, we record material changes here so anyone relying on a figure can see whether, and when, it changed.
A material correction is one that changes a result, a rate, a formula, or a factual claim — not a typo or a wording tweak. Tax and rate data is drawn from official sources such as the IRS, state revenue departments, the Canada Revenue Agency, HMRC, and the ATO, and each tax page shows the date its data was last verified. When one of those sources updates a figure, or a reader flags a genuine discrepancy, the change and its date are logged in the journal above.
This is a transparency record of confirmed changes, maintained alongside the calculators and datasets it covers. If you spot something that looks wrong, reporting it helps every other person who uses the same tool.