Before this change, tax for software development was calculated against:
* Profit = Revenue - Expenses
And software developer salaries fell neatly into Expenses unless you were looking for an R&D tax credit.
After this change, tax for software development is calculated against this new equation:
* Profit = Revenue - (1/5 * YearlyExpenses[-1]) - (1/5 * YearlyExpenses[-2]) - (1/5 * YearlyExpenses[-3]) - (1/5 * YearlyExpenses[-4]) - (1/5 * YearlyExpenses[-5])
Which means that if you are in Year 1 of operation, your values for YearlyExpenses[-2:-5] are all 0 and you only get to deduct 1/5 of your actual operating costs for the year from your "profit". So you can be in the hole but still owe taxes on your "profit" for the year because what you spent money on was classified as R&D.