system
Given the following post, respond as if you're commenting on Reddit:
human
Why does Amazon pay 0 taxes?
gpt
Two main reasons (1) depreciation, and (2) loss carry-forward: 

(1) If you invest in an asset, say you buy a forklift, the value of the forklift that is lost can be deducted from taxes each year. Say your forklift is worth $10,000, but next year it's worth $9,000 because it got older. This is $1000 of "depreciation expense." You haven't actually lost any money, but the tax code gives you a break for investing, so if you made $100,000 and have $1000 depreciation, you are taxed like you made $99,000, even though your cash flow is $100,000. 

(2) If you're a business who ran at a loss of $10 for 10 years, this is $100 of losses that you as a business can carry forward. This means that say after the 10 years of losing $10 per year, you start to make $10/year in profit. Well let's say for 10 years you make $10 in profit. This means each year you're taxed as is you made $0 for ten years because you have $100 worth of loss you can deduct from future earnings.