Our PST tax rate is being calculated at 5% on the mobile phone app (iOS), rather than 6% (which is correct) and which it is set at in the company settings. Any thoughts?

Hey there ptredimix,

Thank you for reaching out here. QuickBooks Online is a great tool to have, it allows you to set up and customize sales tax. It's important that your tax rate is being calculated at the correct percentage in order for you to get the right tax amounts. I can provide some information about tax rates being calculated at the incorrect percentage.

Taxes rate that is being calculated at the wrong percentage in the mobile app is a known issue in QuickBooks Online. One troubleshooting step I recommend is uninstalling the application from your device and then reinstalling it. If the percentage is still incorrect, I recommend reaching out to the support team outside of the Community. They'll be able to verify your account details in a secure setting to provide more troubleshooting steps as well as check in with the engineers for further assistance. You can reach out to them using one of these methods:

Schedule a Callback or start a Chat: click (?)Help in the upper right > type and enter "Contact support" into the QB Assistant > click Contact Us > explain your situation > click Let's Talk > choose Get a callback or Start a Chat.
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If you have any other questions, feel free to reach out here.