Originally Posted by nutwpinut

I do need to get some glasses and stop multi-tasking. I started reading one link, but got Australia and Austria mixed up. ooops

All 3 plus Lonely Planet mention that 10% tip/service charge is normally added to a restaurant bill. I wouldn't tip 10% in that situation just round up to the nearest dollar amount. I have never said tip over the tip/service charge!

What if you get into a restaurant that didn't add the 10% service charge? A rare happening, but can happen. In one of the 3 links a gentleman says expect to tip 10%. The other 2 links (now that I read Austria and not Australia) only mentions expecting the 10% tip to already be there not what happens when it isn't. Wiki mentions tipping 10% without mentioning the service charge probably already being there. Lonely Planet says tip 10% if not already included.

To the OP and anyone else who travels to Austria. Do as you want. Personally, I look to see if there is already a service charge or tip, which is almost always there (in large cities could be 99.9% of all restaurants already add this), and if it is already there, I just round up, but in the rare chance it isn't there, I tip 10%.