Two-Year Average
The common underwriting practice of averaging a self-employed borrower's income over the two most recent years to smooth out fluctuations and confirm stability.
What the Two-Year Average Is
The two-year average is the standard way conventional lenders calculate income for self-employed borrowers: they take your qualifying income from the two most recent years and average it. The logic is conservatism — business income swings from year to year, so a two-year window smooths the noise and tests whether your earnings are durable rather than a single good year.
How It's Applied
The mechanics matter as much as the average itself:
- Rising income — most lenders average the two years. Some will use the higher, more recent year if the increase is well documented and the business explains it, but averaging is the default.
- Declining income — when year two is lower than year one (declining income), lenders typically use the lower, more recent figure rather than the average, and they'll want an explanation. A steep drop can stall an approval entirely.
- Less than two years self-employed — many programs require a two-year track record; some allow one year with a strong, related work history, but this is a frequent sticking point.
The income that gets averaged is your qualifying income after add-backs, not your raw Schedule C bottom line.
A Worked Micro-Example
A consultant's qualifying income (after add-backs) is $90,000 in Year 1 and $120,000 in Year 2.
- Average = ($90,000 + $120,000) ÷ 2 = $105,000/year, or $8,750/month.
Now flip it: $120,000 in Year 1 and $90,000 in Year 2. Because income declined, most lenders use the lower recent year — $90,000, or $7,500/month — and ask why it dropped. Same two numbers, very different result, all driven by direction of travel.
Why It Matters for the Self-Employed
The two-year average is the single biggest reason self-employed borrowers need to plan ahead. One strong year isn't enough; lenders want to see consistency. It's also why timing a purchase matters — applying right after a down year drags your average (or caps you at the low year), while applying after two strong, growing years maximizes it.
A few practical moves:
- Don't over-write-off in the year before you buy; depreciation and other add-backs help, but cash deductions permanently lower the average.
- Document the story behind any dip — a one-time expense, a client loss since replaced, a relocation.
- If a two-year average won't work in your favor, a bank statement loan (which often uses 12–24 months of deposits) or a P&L loan may give you a fresher, friendlier income picture.
Apply This Concept
Related Terms
Qualifying Income
The income figure a lender actually uses to approve your loan and calculate your debt-to-income ratio — which, for the self-employed, is rarely the same as either your gross revenue or your gross pay.
Declining Income
A pattern in which a self-employed borrower's income has fallen year over year — a red flag that leads lenders to use the lower, more recent figure and demand an explanation.
Schedule C
The IRS form (Profit or Loss From Business) that sole proprietors and single-member LLCs use to report business income and expenses — the document a mortgage lender reads first to understand a self-employed borrower.
Add-Backs
Non-cash or non-recurring deductions a lender adds back to your net profit when calculating qualifying income — because they lowered your taxable income without actually reducing your cash flow.
Self-Employed Borrower
A mortgage applicant who earns income from a business they own rather than from an employer — generally anyone with 25% or more ownership of a business — and who is therefore underwritten on income they must document themselves.
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