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Accounting & BookkeepingSoftware Reliability & Performance4HighOffice Manager$ implied

QuickBooks Online miscalculates HST on discounted estimates in Ontario, causing incorrect totals.

QuickBooks Online's HST calculation on estimates with discounts is buggy and unreliable, and the support assistant cannot handle bug reports.

Severity

4High

Willingness to Pay

implied

Added

May 4, 2026

Workarounds Described

manually recalculates HST and corrects the total

Implied Software Gaps

Automated tax calculation validation and correction tool that works with accounting software

App Concept

TaxCalc Fixer

A plugin or standalone tool that audits and corrects tax calculations on invoices and estimates for any accounting software. It automatically detects HST errors and provides a one-click fix, ensuring compliance with local tax rules.

Key Features

Automated audit of tax calculations on invoices and estimates
One-click correction of HST errors
Support for Canadian HST/PST/GST rules
Integration with QuickBooks Online and other accounting software

Target Users: Office managers and bookkeepers at small to medium-sized businesses in Canada using accounting software like QuickBooks Online

Revenue Model: Freemium with $19/mo pro tier for unlimited corrections and multi-software support

Existing Solutions Mentioned

QuickBooks Online

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