Myclientbase is the predecessor of Fusioninvoice and was also Open Source.
In the invoice itself, you won’t see that really.
It is just to enter a gross price . E.g. I have a „product“ which costs 4.49 per month including tax = 53.88 per year. If I enter the price without tax (3.77 rounded), the price per year is 53.83 including tax.
I have already seen other threads regarding this:
https://community2.invoiceplane.com/t/topic/5189
https://community2.invoiceplane.com/t/topic/7478
Is this so hard to implement? Because I’m thinking about implementing it myself (though I’m not really a developer). Could you tell me which files I need to change for that?
I would create a new database field called “item_tax_option”, 0 is without tax (default) and 1 is price included tax. Then in the frontend a new checkbox “Tax included”. An if tax included I have several price calculations to change. Would you tell me the files to be changed?