A-Train Tips and Cheats

The game's annual income tax rate is 50 percent, but property tax is a 
mere 5 percent. So before April 1 assessment day, spend your cash on 
buildings. Those cash outlays count as expenses against your income, 
letting you report tax-free negative income even while generating revenue 
from the property.

HUGE CHEAT:
To get $1 million and all the supplies that you can store,
hold [Ctrl]+[Shift] and type:
cheater-cheaterwimp.