QB Issue Resolution:

Pay it out as a Bonus (one time) check. Make sure to follow the withholding rules for One time/Supplemental wage for Fed, and your State might have a similar requirement.

Resolution for Issue 'Payroll Period – Once a year?' available: Yes (Solved).
Source: Intuit Community forum.

Payroll Period – Once a year?: 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 Bonus
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Error Recovery for Bonus [Canada]
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