Calculate borrower income from self-employment, business ownership, and rental property
Income Calculator is a free, easy-to-use way to quickly and accurately calculate income from self-employment, business ownership, and rental properties using a borrower’s tax return data.
Income calculation for borrowers with complex income sources can be time-consuming and complicated, even for experienced originators. Fannie Mae's Income Calculator is a powerful tool for loan originators, underwriters, processors, and quality control specialists. Lenders, brokers, and other mortgage professionals can use it to maximize qualifying income, make more informed decisions, reduce cycle times, and limit repurchase risks.
Income Calculator supports:
- Self-employment (25% or greater ownership), including gig income
- Business ownership (less than 25% ownership)
- Rental property income, including simple and complex scenarios
Income Calculator’s free web interface is available for mortgage professionals to generate an immediate response with a qualifying income amount and informative messages. This income amount can then be used in Desktop Underwriter® (DU®) submissions.
New Income Calculator Integrator Now Available
ICE is now an authorized technology service provider (TSP) for the integrated version of Income Calculator. To set up an integrated service, please reach out directly to ICE or one of the other approved TSPs.
Maximize qualifying income
By incorporating all income add-backs, Income Calculator can help qualify more borrowers.
Reduce cycle times
Get income calculation results earlier in the loan process so you can proceed more quickly with loan applications.
Trusted, transparent income calculations
Obtain fast, accurate calculations for complex incomes from self-employment, rental properties, and businesses.
Reliable policy alignment
Ensure alignment with Fannie Mae Selling Guide policy, along with rep and warrant relief for income calculations.
Since introducing Income Calculator in 2023
Frequently asked questions
For answers to more of the most common questions about Income Calculator, view all FAQs.
On the website
Income Calculator’s free web interface provides immediate results and unlimited income calculations. Follow the step-by-step instructions to enter a borrower’s tax return data. Income Calculator instantly provides the qualifying monthly income amount along with a downloadable PDF findings report.
Integration with Technology Service Providers (TSPs)
Using the services of an approved TSP, you can significantly reduce the need for manual data entry and may be able to seamlessly integrate it with your Loan Origination System (LOS). Get started by contacting one of the approved providers listed below.
Integrating with Income Calculator via a third party requires a contract with an approved technology service provider.
Full integration
Full integration
The approved provider extracts the necessary data from a borrower’s income documents uploaded by the user. The provider’s system submits the data to Income Calculator and provides an immediate response, including the Fannie Mae qualifying monthly income amount and a downloadable findings report.
Full integration requires a signed Fannie Mae License Agreement, in addition to a contract with an approved TSP.
LOS iFrame
LOS iFrame
The approved provider enables Income Calculator’s web interface within their own LOS. The user follows step-by-step instructions to input borrower income data. Income Calculator instantly provides the Fannie Mae qualifying monthly income amount and a downloadable findings report.
Approved providers:
Take3Tech/LoanMaps
Import tax return data
Import tax return data
The approved provider extracts the necessary data from a borrower’s income documents uploaded by the user. Within minutes, the provider’s system provides a data file for users to import into the Income Calculator web interface. Users must manually supplement additional required data and may adjust other data as needed before submitting for an evaluation and getting an instant response.
Approved providers:
Baleen
Import tax transcript data
Import tax transcript data
The approved provider extracts data from a borrower’s tax transcript and provides a data file for a user to import into the Income Calculator web interface. Users must manually supplement additional required data and may adjust other data as needed before submitting for an evaluation and getting an instant response.
Are you a TSP interested in integrating with Income Calculator? Review the TSP readiness checklist.
Income Calculator access comparison
| Fannie Mae Web Interface | Full TSP Integration | LOS iFrame | Tax Return Import File Creation | Tax Transcript Import File Creation | |
|---|---|---|---|---|---|
| Where does the user initiate the request? | Fannie Mae website | TSP’s website | TSP’s LOS | TSP’s website | TSP’s website |
| How is the tax return data obtained? | Manual data input by user | Electronically extracted or exported from providers by TSP | Manual data input by user | Electronically extracted from tax returns by TSP | Electronically extracted from tax transcripts by TSP |
| What is the response time for tax return data extraction? | N/A | Per TSP (generally less than 2 hours) | N/A | Per TSP (generally less than 5 minutes) | Per TSP/IRS |
| Where is non-tax return data input (e.g. employment start date)? | Fannie Mae website | LOS (if integrated) or TSP’s website | Fannie Mae website accessed within LOS | Fannie Mae website | Fannie Mae website |
| Where does the user view the response? | Fannie Mae website | TSP’s website | Fannie Mae website accessed within LOS | Fannie Mae website | Fannie Mae website |
| Rep & warrant relief offered | Income calculation (math) | ||||
| Is there a cost? | No | Yes (through contract with an approved TSP or LOS | |||
| Is a signed Fannie Mae agreement required? | No | Yes | No | ||
| Am I required to be an authorized Fannie Mae seller? | No | ||||