How can we pay salary for all employees at once in Quick book manual payroll?

In QuickBooks, go to Help > QuickBooks Help (or F1 on your keyboard).

Click the Search tab, enter "manual payroll," and press Enter.

Select the topic: Calculate payroll taxes manually (without a subscription to QuickBooks Payroll).

Under Set your company file to use the manual payroll calculations setting, clickthe manual payroll calculations link.

Click the Set my company file to use manual calculations link.