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.

Access Income Calculator from the free web interface or by integration with an approved technology service provider.

Launch

Integrate

What’s new in Income Calculator?

Discover the latest enhancements and release notes.

Benefits

Since introducing Income Calculator in 2023

Frequently asked questions

For answers to more of the most common questions about Income Calculator, view all FAQs.

Fannie Mae does not charge a fee for using Income Calculator. Originators who are using an approved technology service provider’s (TSP) integration to Income Calculator should contact their TSP to discuss their product pricing.

The DU validation service retrieves tax transcript data produced by the IRS from approved vendors, offering rep and warrant relief for its calculation and for data integrity. Income Calculator offers rep and warrant relief only for the calculation, not for data integrity because its calculation uses borrower-provided or user-imported tax data. The DU Underwriting Findings Report messages generated are different for DU validation service than for Income Calculator.

No, user credentials are not required to use Income Calculator. This enables Fannie Mae to extend the reach of Income Calculator to a broad range of mortgage professionals. Income Calculator does not collect borrower’s name, borrower’s address, Social Security number, business address, business Employer Identification Number (EIN), or any other Non-public Personal Information (NPI). Users must successfully answer a challenge question to access previously submitted data. In addition, there are options for users to ‘Lock’ and/or ‘Hide’ their submission data.

Ways to use Income Calculator

Hands typing on laptop

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. 

Use Income Calculator

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.

Approved providers:
Halcyon
PointServ

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
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
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
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.

Approved providers:
Halcyon
PointServ

Are you a TSP interested in integrating with Income Calculator? Review the TSP readiness checklist.

Income Calculator access comparison

 

 Fannie Mae Web InterfaceFull TSP IntegrationLOS iFrameTax Return Import File CreationTax Transcript Import File Creation
Where does the user initiate the request?

Fannie Mae website

TSP’s websiteTSP’s LOSTSP’s websiteTSP’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 userElectronically extracted from tax returns by TSPElectronically 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/APer 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 websiteFannie Mae website accessed within LOSFannie Mae websiteFannie Mae website
Where does the user view the response?

Fannie Mae website

TSP’s websiteFannie Mae website accessed within LOSFannie Mae websiteFannie 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

Resources 

Webinar: Accurately calculate income for self-employed borrowers

Webinar: Navigating rental income with confidence