Still plenty left to pay their business taxes.
Which is what's happening.
I don't think these two are unrelated.
I also don't understand the objection. It's not like anyone's getting away from taxes due to this rule. This is about a temporary exemption from company income tax IF AND ONLY IF companies have someone pay income tax on that money (and only up to the point where that keeps makes sense). This "exemption" lets you not add 15%-20% tax on top of 40-55% income tax just to try a new business as a company.
It makes it substantially more cashflow intensive to build a new software business, which entrenches incumbents and reduces competition. It favors companies who have the cash to wait for the full 5-year depreciation cycle, i.e. the opposite of most bootstrapped startups.
Quick example:
$10,000 revenue
$8,000 paid to software developer
$1,000 paid to AWS
leaves $1000 in profit.
You received $10,000 into your business account, but spent 8000+1000 = $9000. Your business account has a balance of $1000 at the end of the year.
Section 174 means you can only deduct 1/10th of the $8000 in the first year, $800. Your total deductible business expenses for the year will be 800+1000 = $1800.
Your taxable profit for the year is 10000-1800 = $8,200. If your effective tax rate is 25% (generously low), you owe $2,050 in taxes.
You pay your $2,050 tax payment and your business account is overdrafted by $1,050. You need to add $1,050 from your personal funds to the business to cover the shortfall.
Your business was cash flow negative for the year. This makes it extremely difficult to bootstrap a software company.
If you give the company more money to use to cover its tax bill, then that further increases the company’s taxable income.