Hi there Mimar sheet metals,

It's vital that you get paid for the services you provide your customers. QuickBooks Online is a great tool able to help you create and send invoices to your customers. I can provide some information about late fees. 

There are differences between the different versions of QuickBooks Online available in different regions. In order to voice your interest in this feature directly to the developers, I recommend putting your feedback in the Gear Icon, then Feedback of your QuickBooks account, as the comments in that section are reviewed by the developers and taken into consideration when planning future updates of QuickBooks Online in Canada.

If you have any other questions, feel free to reach out here.