Estimate How Bank Deposits May Translate into Mortgage Qualifying Income
A business depositing $40,000 per month does not necessarily give a borrower $40,000 per month of mortgage qualifying income.
The lender must identify eligible deposits, remove transfers and non-income transactions, and apply the investor's required business-expense methodology.
This guide shows how that process can work.
Simple Bank Statement Income Formula
A simplified business bank statement calculation can be represented as:
Average Eligible Monthly Deposits × Qualifying Percentage = Estimated Qualifying Monthly Income
For example:
$40,000 average eligible deposits × 50% = $20,000 estimated monthly qualifying income
This is only an illustration.
Actual calculations are determined by the selected investor's guidelines.
Example 1 — 50% Expense Factor
Assume:
12-month eligible deposits: $480,000
Average monthly deposits:
$480,000 ÷ 12 = $40,000
If the applicable methodology treats 50% as qualifying income:
$40,000 × 50% = $20,000/month
Estimated annual qualifying income:
$240,000
Example 2 — 25% Expense Factor / 75% Result
Assume the same:
Average eligible deposits: $40,000/month
If a qualifying investor methodology results in approximately 75% of eligible deposits being used:
$40,000 × 75% = $30,000/month
Estimated annual qualifying income:
$360,000
Difference compared with a 50% calculation:
$10,000 more qualifying monthly income
That illustrates why the investor's methodology can significantly affect mortgage qualification.
It does not mean every borrower can use 75%.
Example 3 — Removing Transfers
Assume total monthly deposits show:
$50,000
But the analysis identifies:
$8,000 of transfers between owned accounts
Potential eligible deposits before other adjustments:
$42,000
The same dollars generally should not be counted twice.
Example 4 — 12-Month Calculation
Eligible deposits during the last 12 months:
$360,000
Average:
$30,000/month
If the applicable methodology results in 50% qualifying income:
$15,000/month
Example 5 — 24-Month Calculation
Assume eligible deposits over 24 months equal:
$720,000
Average:
$720,000 ÷ 24 = $30,000/month
A longer period can help demonstrate income consistency and business seasonality.
What Counts as an Eligible Deposit?
Potentially eligible deposits may include recurring payments that can be documented as legitimate business or self-employment revenue.
However, underwriting may exclude or investigate:
- Transfers
- Loan proceeds
- Refunds
- Asset sales
- Duplicate deposits
- Unusual transactions
- Non-recurring deposits
- Other transactions that do not represent ongoing income
Personal Bank Statement Income
Personal-statement calculations can differ from business-statement calculations because the funds deposited into a personal account may already represent income distributed from the business.
Program rules vary significantly.
The underwriter must determine whether the account structure satisfies the selected investor's guidelines.
Business Bank Statement Income
Business accounts generally contain gross operating revenue.
Because a business has expenses, the investor generally applies an approved method to estimate the portion available as borrower income.
Different investors can therefore produce materially different calculations from the same statements.
Why a Mortgage Broker Can Matter
Suppose two investors review the same business:
Eligible deposits: $40,000/month
Investor A's methodology produces:
$20,000 qualifying income
Investor B's approved methodology produces:
$30,000 qualifying income
The underlying business has not changed.
The difference is the program methodology.
That is why comparing available wholesale programs can matter for self-employed borrowers.
Can I Calculate My Own Bank Statement Loan Qualification?
You can create a rough estimate, but a final calculation requires review under actual investor guidelines.
At minimum, you would need to determine:
- Total deposits.
- Non-income deposits.
- Transfers.
- Eligible deposits.
- Statement period.
- Applicable expense methodology.
- Average qualifying monthly income.
The income calculation is then only one part of mortgage qualification.
Credit, debts, assets, reserves, property, LTV and occupancy still matter.
Bank Statement Calculator Worksheet
Use this simple preliminary worksheet:
| Calculation | Amount |
|---|---|
| Total deposits during review period | $_____ |
| Less transfers | $_____ |
| Less non-income deposits | $_____ |
| Eligible deposits | $_____ |
| Divide by months reviewed | _____ |
| Average eligible monthly deposits | $_____ |
| Potential qualifying percentage | _____% |
| Estimated qualifying monthly income | $_____ |
Do not use this worksheet as a loan approval or qualification guarantee.
Calculator FAQ
Can 100% of deposits be used?
Do not assume so. Investor methodologies vary and business expenses may need to be considered.
Can 75% of deposits be used?
Certain qualifying methodologies may result in approximately 75% of eligible deposits being considered. It is not a universal rule.
Do transfers count?
Generally, transfers between the borrower's own accounts do not create new income.
Is a 12-month average better than 24 months?
Not automatically. The correct period depends on the program and borrower profile.
Does qualifying income equal my maximum mortgage payment?
No. The lender must also analyze debts and all other underwriting requirements.
Request a Bank Statement Income Review
Daniel Paris
Utah Mortgage Broker
NMLS #243976
801-604-4949
UtahLowRate.com
Related resources:
Bank Statement Mortgage Loans Utah
Bank Statement Loan Requirements
Jumbo Bank Statement Loans Utah
Bank Statement Loan FAQ
Calculator examples are educational only. Actual qualifying income is determined under applicable lender and investor guidelines.
