landlord won't give a rent receipt

So, if it is HIS income, and for HIM to pay, what’s the fuss about?
It is HIS problem, not yours .

Dear Eric, he’s talking about a rent receipt, not a tax receipt. If he pays the rent, he’s entitled to a receipt for it.

Uber’s taxes and other problems are discussed at length in the Uber thread. Summary: they claim to be willing to pay tax but not willing to register as a transportation company, so they’ve shut down. (What the majority of Taiwanese think about that, I don’t know.)