Zoho Books lets you create and send a quote/estimate for a job to your customer. To do this, you will have to create an estimate and associate it to the project. Here’s how:
Insight: In the new estimate page, you can include tasks by clicking the Include Tasks button at the bottom of the page.
Pro Tip: You can add the number of hours in the quantity field and the cost in the rate field of the item table.
and GST filing.