I made this website for my current company, it is the little brother of the Loi Pinel website. It deals also with tax system. but it has one particularity : a simulation form.
It is connected to a webservice that allows the user, after he gave several informations about his earnings and other financial aspects, to have a clear results of the amount of taxes he will be able to spare with a french plan called Loi Pinel.
It is made with WordPress and Bootstrap for WordPress, it is responsive.