Real Estate Agent- Which write offs can be added back to qualify

[Jon L.]

As a real estate agent, if one makes $100k but writes off $60k, they only make $40k and it makes it harder to qualify for loans. Which write offs are best and can be added back into the income to qualify? I know laptops, cell phones, etc may be depreciated over the years so it takes less of a hit. Any other info would be greatly appreciated!