Thanks for joining this thread, Nancymarie.
 

You can edit a payroll item's deductions setup by accessing it in your item list.
 

Here's how:

1. In the top menu bar, go to Lists, then Payroll Item List.
2. Right-click on your appropriate item.
3. Choose Edit Payroll Item.
4. Make the necessary changes.
5. Hit Next.
6. Select Finish.

If you haven't created your item yet, it can be produced by using the Payroll Item drop-down list at the bottom of your Payroll Item List, then selecting Add.
 

I've included a detailed resource about adding and editing payroll items that may come in handy moving forward: Edit a payroll item
 

I'll be here to help if there's any additional questions. Enjoy the rest of your day!

There isn’t an option to add an effective date in the system.

Hi there, @Aspire19.

I have found that the post you made appears to be a duplicate. BigRedConsulting has already provided an answer to this concern. To resolve the issue, I highly suggest proceeding to this link provided to access the solution: https://quickbooks.intuit.com/learn-support/en-us/employees-and-payroll/re-sick-and-vacation-accrua....
 

Feel free to reply on the thread if you have further queries in setting up your sick and vacation leave. We're always ready to help. Have a good one!