Just wondering why when I set a rule. Ie for petrol under buisness use. I select it to include gst and then create a rule. 

I go through my transactions and none of them have gst included.

I've been using the app since 2017 and now I find I've been paying way to much gst to the government.

I have to got through 10000 plus transactions now to add gst to them all.