Hello there, @Denise 65,

I'm here to make sure that you'll get the payroll service key you need for your QuickBooks Desktop (QBDT) Payroll. 

The service key can be usually seen on the box if you have purchased your QBDT at a retail store. However, if you've ordered the software from our Sales Department, then the service key comes by e-mail.

 If you're unable to obtain the service key information, you can use our Automated Service Key Retrieval tool. Then, sign in using your Intuit account.

For detailed steps, kindly refer to this article: Enter your payroll service or disk delivery key.

If the issue persists, I suggest contacting our QBDT Payroll Support Experts. A representative will be able to access your account in a secure environment and provide the information you need. 

Moreover, I've also included this reference for a compilation of articles you can use while working with us: Account Management for QuickBooks Desktop Payroll.

Should you require further assistance with obtaining your service key in QBDT Payroll, don't hesitate to leave a reply. The Community team always has your back. Keep safe.