That Swiss tax is interesting. Relatively high. But also seems to be on its way out. www.ubs.com/ch/en/privat...
Germany lacks mortgage interest deduction. An interesting look at German homeownership in Kaas, Kocharkov, Preugschat & Siassi (2021): academic.oup.com/jeea/article...
And the Netherlands, I think, though at a low level. But in general, I guess it's a tax that is more beloved by economists than by politicians.
As with the Norwegian tax system. It isn't the mortgage interest deduction that favors owners over renters, it's the lack of tax on imputed housing income. That should be corrected. onlinelibrary.wiley.com/doi/full/10....
In my housing column in Norwegian newspaper DN, I this time discuss rental regulation, based on Diamond, McQuade & Qian (2019).