How should i key in employee pay

I'm happy to see you here in the Community, @joan_ke.

You'll need to record your payroll transactions as a journal entries since QuickBooks Online Singapore doesn't have a payroll function inbuilt.

To do that:

1. Hit on the + New button.
2. Select  Journal Entry.
3. Under Date, select the payroll payment(s) date.
4. Input Entry # for journal entry.
5. Choose the Debit and Credit accounts.
6. Click Make Recurring.
7. Enter a memorable Template Name and set Template Type to Unscheduled; click Save Template.
8. Press on Save.

Here's a link that you can check out that contains a sample scenario on how to enter payroll transactions in QBO: Recording payroll transactions manually

On the other hand, to view the payroll details that you've entered, you can pull up the Profit & Loss report. This displays data from the income and expenses of your account, including journal entries.

To learn more about the reports and data available in QBO, please see this article: Targets vs. Sources overview

If there's anything else you need about this or any QuickBooks related concerns, let me know. I'd be pleased to help. Have a great day!