QB Issue Resolution:

you can sell an other charge or service item as taxable, qty =1, amount = the total on the invoice no tax was collected on, then on the next line use the same line, same amount, qty = -1, and set it to non taxable

the tax will calculate on the taxable line, the negative one in the qty on the second line will cancel the sales amount and since it is non taxable only the tax will show as due on the invoice.

then either create a credit memo and apply to the invoice, or pay it from personal funds

Resolution for Issue 'invoices taxable from a prior period that were not charged tax' available: Yes (Solved).
Source: Intuit Community forum.

invoices taxable from a prior period that were not charged tax: this issue or error code is a known issue in Quickbooks Online (QBO) and/or Quickbooks. Support for this issue is available either by self-service or paid support options. Experts are available to resolve your Quickbooks issue to ensure minimal downtime and continue running your business. First try to resolve the issue yourself by looking for a resolution described below. If it is a complex issue or you are unable to solve the issue, you may contact us by clicking here or by using other support options.

Support for Payment
Quickbooks Repair Pro will resolve it efficiently and affordably. Guaranteed resolution of your issue, or you pay nothing!

Error Recovery for Payment [Canada]
E-Tech is the #1 Quickbooks data migration and Conversion service provider.

Get 50% off Quickbooks Online

Click Here for 50% off!

Additional Support Options: