Taxes are a great argument against corporate personhood. People pay taxes on income, corporations pay taxes on profit. This is why so many corporations pay no taxes at all. If they want to be people they should pay income tax like the rest of us.
For most people, business expenses are paid by the employer and profit==income, but for some (the self-employed in particular) their business expenses come out of pocket and are deductible. Individuals actually end up paying taxes on profit, we're just used to wording it as income.
Anything a corporation spends money on is an expense and is deducted from profit. Most things people spend money on (housing, food, car...) are generally not deductible. If people were taxed like corporations we would only be taxed on the increase in our savings accounts. Median american savings is $0 so most people would not pay any taxes if they were taxed like corporations.
When a company spends money to continue its existence, such as rent, it is deducted from its taxable profit. When a person spends money to continue their existence, such as rent, it is not deducted from their taxable income. If people were taxed as corporations the median American would pay no taxes.
