Unforeseen circumstances can arise, but I appreciate your efforts and understand the importance of ensuring accurate sales tax calculations, McKinney.
First off, tax calculations are determined by the automated sales tax settings you’ve set up in your QuickBooks Online account. Thus, the transactions made through the QuickBooks card reader will automatically apply the correct sales tax rates and record them directly in your account for streamlined tracking.
On top of that, for the transactions that were already processed and deposited, you’ll have to delete the deposit entry made and modify the sales tax rate field of the invoice or sales receipt created. This way, it ensures that discrepancies are corrected and your tax calculations remain accurate.
Additionally, you'll want to seek additional guidance from our Live Expert Assisted team to help you manage tax calculations and provide assistance in keeping track of your overall transactions.
Let us know anytime on this thread for any additional queries.