Earlier quoted context omitted.
But where an established company invests steadily in software, whether it is amoritized or deducted year to year is a wash. Rather than harm tech, this would seem to protect established US companies at the expense of startups. Thats probably great for shareholders in publicly traded companies. It seems just another querk of taxation meant to maintain the established order
It's only a wash if they've been amortizing all along. There's been no advantage to doing so, so established ones have all been deducting, and will have the same five year window of increased taxable income that startups will.
Each and every startup will have a year 0 where they're spending more than they earn, and under the new Section 174 they will only get to deduct 10% of their employee's salaries that year. In year two they get to deduct 20% of year 1's salaries and 10% of year 2's salaries, which is still 30% of what the established players will be able to deduct. By year 4, if they make it that far (which most startups don't) they'll finally be at 90% of a full deduction.
Add to that the fact that startups also by definition have a much higher rate of growth than established companies and you'll find that a startup almost definitionally will be paying substantially more in taxes as long as it remains a startup, because they only get to deduct an average of the last 5 years of expenses from this year's revenue in order to calculate this year's profit. That's fine when your last five years are more or less similar to this one, but it's terrible when you've been growing.
The net effect of this change can only be to disincentive startups and cement big, slow established players.