[gruez]

>It doesn't matter if it costs me $4000 in rent, groceries, transportation, etc., to make $6000, I'm getting taxed on that full $6000.

So if I spend $5000 on groceries because I'm eating wagyu steak and lobster everyday, is that a fair "expense" too? You might retort that's obviously a luxury and there should be some baseline that's tax free, but then you're just describing the standard deduction.

>but as long as the value of investment is positive, that is, outpacing inflation, it makes zero sense to let your money languish in a Scrooge McDuck pile rather than get some value out of it.

...or they take their money elsewhere instead.

[OkayPhysicist]

Businesses don't pay extra tax because they chose to met their needs at a greater-than-minimum cost. If my boss buys some reagents from Dave for $300 bucks instead of Bill's $200 offer, the company's not paying taxes based on a hypothetical $200 cost basis.

If we want to tax "luxury" expenses, we have excise taxes for that.

[gruez]

>Businesses don't pay extra tax because they chose to met their needs at a greater-than-minimum cost. If my boss buys some reagents from Dave for $300 bucks instead of Bill's $200 offer, the company's not paying taxes based on a hypothetical $200 cost basis.

Right, but consumption for a business is fundamentally different than a person consuming. When you eat lobster (vs eating ground beef), any extra benefit goes down the toilet, so to speak. Whereas for a business, it's presumably to further the enterprise. Maybe getting a purer reagent will make the product better and drive more sales. After all, a business itself can't have any needs or wants. In any case a business can't have wants to get the $300 reagent just because, unlike a person. The employees can get benefits, but there are strict policies set by the IRS on what you can count as a business expense, specifically to prevent you from putting lobsters as a business expense.

Moreover such favorable tax treatment isn't restricted to businesses only. It's available to anyone that conducts business. If you're self employed you can deduct the cost of your F-150 truck, if it's used as part of your job.