"Pretax basis" refers to the calculation or assessment of something before any taxes are taken into account. It refers to the amount of money or value of something before taxes are deducted or added. Full definition
The company said it expected the store closures to result in annualized sales loss of about $ 250 million but help save $ 275 million on an annualized pretax basis. (entrepreneur.com)
This is income that workers set aside on a pretax basis. (inc.com)
Contribute the maximum now if you can; if not, increase your contributions incrementally until you do reach the maximum on a pretax basis. (cnbc.com)