Your accountant has one job in April and it is to make your taxable income as small as legally possible. They are usually very good at it. Then you go to buy a house and discover that the number they worked so hard to shrink is the number a lender uses to decide what you can borrow.
Nobody did anything wrong. The two systems are simply reading the same pages for different purposes.
What actually gets counted
Broadly, an underwriter starts from your net profit and then adds back the things that reduced it on paper without leaving your bank account. Depreciation is the big one — it is a real deduction and not a real expense, so it usually comes back. Amortisation and depletion behave similarly. A genuinely one-off loss can sometimes be added back with an explanation.
Almost everything else does not come back. Vehicle expenses, home office, meals, equipment, phone, subscriptions: all real money that left, all correctly deducted, all gone from your qualifying income.
Two years of aggressive deductions can halve the house you qualify for. That is not a punishment; it is the arithmetic working exactly as designed.
Two years, and usually averaged
Most programs want two years of returns and use the average of the two, with a rule that protects the lender: if the second year is lower than the first, they generally use the lower figure rather than the average. Declining income is treated as a trend, not a blip, unless you can document why it is not.
If you own 25% or more of a business that files separately, expect the business return to be read as well, and expect questions about whether the business can survive the money you take out of it.
The alternative, and what it costs
If the returns will not support the file, there are lenders who qualify on deposits instead — twelve or twenty-four months of business bank statements, with an expense factor applied. It is a real product with real underwriting, not a loophole.
What it costs is a higher rate and usually a larger down payment. Sometimes noticeably so. Whether that is worth it depends on what the alternative is: if the alternative is waiting two years while you deliberately pay more tax to look better on paper, the arithmetic is often closer than people expect. I will show you both columns and you can decide.
Four things not to do mid-application
- Do not change entity type. Moving from sole trader to an S corporation in the middle of a file resets a large amount of underwriting work and raises questions about continuity.
- Do not change how you pay yourself. Same reason.
- Do not file an extension without telling whoever is handling the file. Depending on the timing, a missing return can stop everything.
- Do not take a large distribution from the business to fund the down payment without asking first. It has to be sourced, and it has to not damage the business’s apparent health.
The version of this that goes well
Somebody calls a year before they intend to buy, we look at the last two returns together, and they go back to their accountant with a specific question: what does it cost me in tax to show an extra fifteen thousand of income this year, and what does that buy me in borrowing capacity? That is a question with an answer. It is much less useful asked in March of the year you are house-hunting.
Written for a demonstration. Nadia Botelho is an invented broker and this article is example content showing what a real practitioner’s writing would occupy. It describes how these things generally work; it is not advice, and no figure in it is a quote.