Any one planning a trip to any of the above may find the below useful.
I have copied the info from a German site.
Whoever travels a lot in the neighbouring countries of Austria, Switzerland and the Czech Republic or in Slovenia, but has not yet got a new annual vignette, should hurry, because since February 1, only the new 2019 versions are recognised.
If you can not show a valid vignette or if you have not attached it properly to the windscreen, you have to expect some drastic fines. The most expensive is in Slovenia, where threaten up to 500 euros. In Austria, such tolls cost from 120 euros - with unauthorised manipulation of the vignette, the replacement charge is twice. In Switzerland around 180 euros plus vignette costs and in the Czech Republic penalties from 200 euros are due.
In Austria, the tolls increased in 2019. The new price for the annual passenger car sticker is 89,20 Euro (+ 1,90 Euro), for two months 26,80 Euro (+ 60 Cent) and the 10-day-ticket now costs 9,20 Euro (+ 20 Euro) Cent). In Switzerland, the annual vignette for motorists from Germany was due to the exchange rate by 75 cents more expensive and costs since October 36.50 euros.
In Slovenia, prices remain stable: for one year car toll 110 euros are due, for one month 30 euros and for seven days 15 euros. The toll for the Czech Republic amounts to 59.50 Euro (- 50 Cent) for the annual vignette, 17.50 Euro (- 50 Cent) for one month and 12.50 Euro for 10 days.
Annual vignettes and the corresponding short-term versions are available in all ADAC branches and on the internet at www.adac-shop.de
as well as by telephone at 0 800 5 10 11 12 (Monday to Saturday 8 am to 8 pm).