Self-Employed Mortgage Income Calculator (2026)

Conventional lenders qualify you on net profit from Schedule C (Line 31), not gross revenue or 1099 totals. Every business write-off you take to lower your tax bill also lowers the income a lender will count, aside from a small set of non-cash add-backs like depreciation.

Underwriters investigate the decline rather than averaging blind. Without a solid, documented explanation, many will qualify you using the lower of the two years — or decline the loan if the decline looks like a trend rather than a one-time blip.

Depreciation is a real tax deduction with zero actual cash impact, so underwriters add it back to your net profit. Ordinary business expenses, vehicle costs tied to real spending, and most other write-offs are not added back.

FHA follows a similar two-year, tax-return-based approach, but underwriters generally have more flexibility on minor income dips than conventional guidelines allow.

A bank statement loan qualifies you off actual bank deposits instead of net taxable income, which is often dramatically higher for high-write-off businesses — use the linked bank statement loan calculator to compare.

Yes. Use “Save results” to store a snapshot. Without an account it remains in this browser. If you log in, saved scenarios sync securely to your SmartRates account so they are available on your other devices.

Click “Share” in the toolbar to copy a link (or open your device’s share sheet). The link encodes your exact inputs, so whoever opens it sees the calculator pre-filled with the same numbers and the same result.

Yes. Click “Email results” to open your default email application with the current inputs, results, and calculator link already included. Review the message and choose the recipient before sending.

Yes. Click “Export PDF” to open a clean, printable summary of your inputs and results that you can save as a PDF or print. It includes a timestamp and a link back to the calculator.

The arithmetic follows the formula and assumptions documented on this page. The result is still an estimate because actual rates, fees, taxes, timing conventions, eligibility rules, and provider calculations can differ. Use figures from your official quote, statement, contract, or tax form before making a financial decision.

Rate, time, starting balance, recurring payments or contributions, and fees usually have the largest effects. Change one input at a time to create a conservative, expected, and optimistic scenario instead of relying on a single forecast.

Only when they appear as an input or are explicitly described in the methodology. Do not assume an omitted cost is zero. Review the formula and methodology sections to see exactly what is included before comparing the result with an outside quote.

No. A calculator projects the assumptions entered; it cannot predict market returns, inflation, variable interest rates, tax-law changes, or provider decisions. Rerun the calculation with several assumptions to understand the range of possible outcomes.

Professional systems may use daily timing, transaction dates, compounding conventions, rounding rules, account-specific fees, credits, eligibility details, or regulations that a general-purpose calculator cannot know. A small difference can be rounding; a large difference usually means an assumption or included cost is different.