" Companies have many accounting tactics for reducing their declared profits – so if the tax is levied on profits, they will likely game the system. "
The solution for this is not taxing revenue, which as mentioned in other comments would destroy a lot of legitimate business models, but instead, improving the art of accounting. It suffers from the same plague of "large corporations with out-sized political power" and the sway of a lot of misaligned incentives. Putting in one stop-gap solution for another doesn't seem like the best way to fix the system.
The solution for this is not taxing revenue, which as mentioned in other comments would destroy a lot of legitimate business models, but instead, improving the art of accounting. It suffers from the same plague of "large corporations with out-sized political power" and the sway of a lot of misaligned incentives. Putting in one stop-gap solution for another doesn't seem like the best way to fix the system.