More Value Bets without Tax ?!

Hi everybody
Im from Germany and as we all know we have a 5% Tax on stake.
The Problem is, If we Turn Tax on we get Like 10-15 value bets a day
Without Tax i can make around 100.
The question now is ,
Should i leave it on or can i Turn it Off.
I know the displayed Results in rb will BE different then the bookies but is this a Problem ?