Just to add to what have been mentioned by others; regardless of the tax amount, all resources of the type that have been "mined" gets collected (ex. tax is 10 logs and there are 20 logs lying around, all 20 gets collected when the timer runs out). If resources don't regenerate, it's easy to get a Game Over just by "pre-mining" resources.
I think it can be a really fun game if polished