I'm trying Zoho Invoice. It seems pretty functional so far.

However, when I create an invoice it doesn't automatically include taxes. 

I've defined one, and I can select it against a task while creating the invoice but that leaves me open to making mistakes and forgetting to add the tax. Which I'm prone to do.

So far I haven't seen a way to define default tax for a customer, project, or task.

Is there a way?

Thanks,

Andrew