That seems high but I know pricing can vary significantly across countries. Is that somewhere in Europe for example? Or any government or Apple taxes included?

in the US, going through the official website, it shows $14 a month or $11.66 a month if paying for the upcoming year at once. Premium and Music are part of the same product here and I'm not sure if you can unbundle.

For comparison, Spotify Premium here looks to be $11/mo.

Depends on your location... Or rather on what google thinks your location is (wink, wink ;)

It's much cheaper in developing countries

I've been paying $7.99 a month.

Huh, must be region based then? This URL [0] says 14 for me and that's what my monthly charge is.

[0] https://www.youtube.com/premium