QB Issue Resolution:

Once you’ve voided the Invoice, assuming that you report in Accrual Basis, the income generated by the transaction will be removed on the date of the invoice (the previous year) and not the current date. You’ll find more information on the differences in accounting methods from our extensive guide here.

 

Creating a Credit Memo would be the best way to reverse income in the current period. Here’s how:

 

Making a Credit Memo

  1. From QuickBooks Online, click the Plus (+) icon > Credit Memo.
  2. Choose the same customer as the invoice you intended to void, and fill out the details for the amount that voided.
  3. Once finished, click Save and close.

For more information, check out our awesome guide on creating credit memos or the video tutorial below:

 

By doing this, you’ll reverse the income generated by the original invoice but in the current year. Please know I’m always available here anytime you need a hand with QuickBooks. Thanks again, best wishes.

Resolution for Issue 'How do I void an invoice from last year in QBO?' available: Yes (Solved).
Source: Intuit Community forum.

How do I void an invoice from last year in QBO?: 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 Credit Memo
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Error Recovery for Credit Memo [Canada]
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