Can someone please tell me how to update the new payroll t ax codes

I'll make sure you get the updated payroll tax code, Andrea.

If you're subscribed to QuickBooks Online (QBO) Advanced Payroll, you'll want to ensure you've enabled your RTI. Also, make sure your HMRC credentials are accurate. 

Here's how:

1. Go to the Payroll menu.
2. Select Payroll settings.
3. Click HMRC settings and review the details.

If you're subscribed to Standard Payroll, you can follow these steps instead: 

1. Sign in to the HMRC PAYE dashboard.
2. Go to the Messages menu.
3. Select Notice Preferences and Notice Options which will allow you to set notices to Yes. 
4. After this has been done, any new notices will automatically update in QuickBooks. 

You can also refer to this article for more details: Tax code notifications in QuickBooks Online Standard Payroll.

Once you're all set, you might want to utilize these resources that can aid you in seamlessly managing your payroll:

• QuickBooks Online Standard Payroll hub
• QuickBooks Online Advanced Payroll hub

I'll be around if you need more help with your payroll taxes. It's always my pleasure to help you. Stay safe and have a great day!