Can I Keep My Current NJ Home as a Rental and Buy Another?
By Sam Alpert, President and Mortgage Loan Originator, NMLS #1961555
You find the next house. You would rather rent out your current home than sell it. The rent looks high enough to cover the payment, so the move should work. Right?
Maybe. But the lender does not simply count every dollar a tenant promises to pay. Under Fannie Mae's revised departing-residence policy, a signed lease is not acceptable rent documentation. The policy is mandatory for applications dated December 1, 2026 or later; lenders may adopt it earlier.
That matters to move-up buyers in Lakewood, Jackson, Toms River and elsewhere in New Jersey. Before you make an offer based on keeping the old house, have the lender check both homes together.
What is a departing residence?
It is the primary home you leave and convert to a rental when you buy a new primary home. This is different from buying an investment property or using a buy-before-you-sell service. The rules below describe Fannie Mae financing, not every mortgage program.
Does a signed lease prove the rental income?
Not under the revised Fannie Mae policy described here. The lender needs support for market rent. That may come from an appraisal with market rents, a comparable rent schedule, or market-analysis tools. When market-analysis tools are used, the lender must obtain at least three comparable rentals, preferably from the same market area.
So a tenant agreeing to your asking rent does not settle the mortgage calculation. The rent used to qualify still needs acceptable support.
Fannie Mae reissued its September 2 announcement on September 23, moving the mandatory implementation date to December 1, 2026. The revised rental-income rules apply to loans with application dates on or after December 1; lenders may adopt them earlier. For an earlier application, ask the lender which policy it is using.
How much rent counts?
For this departing-residence calculation, the lender takes 75% of documented gross rent and subtracts the old home's full qualifying payment: principal, interest, taxes, insurance and applicable association dues.
A simple hypothetical:
- Documented market rent: $3,000 a month.
- 75% used in the calculation: $2,250.
- Old home's qualifying payment: $2,500.
- Remaining monthly loss: $250, included in the debt-to-income calculation.
The house might collect $3,000, but that does not make the old payment disappear for qualifying purposes.
If 75% of rent is more than the old payment, Fannie Mae allows the rent to offset that payment only. The extra is not added as income in this departing-residence calculation. Multi-unit properties need a separate look at their tenant-occupied units.
Do I need cash left after closing?
Possibly more than you expect. Under this guidance, a borrower with less than 12 months of property-management experience needs six months of reserves for the departing property's qualifying payment. That is in addition to other applicable reserve requirements.
In the example above, six months of the $2,500 payment is $15,000. That is a reserve example, not a fee, and it does not include the cash needed for the new purchase or any other required reserves.
What should a New Jersey owner check before renting?
The mortgage calculation is only one part of the decision. Check the registration and rental requirements with the municipality where the old home is located. New Jersey's landlord-identity form includes municipal filing and tenant-copy requirements for single-unit and non-owner-occupied two-unit rentals.
Also check the insurance arrangement, any association restrictions and the real cost of maintaining both properties. Qualifying for the loan is not the same as having enough room in the household budget for repairs or a vacancy.
What is the next step?
Before relying on rental income in an offer, ask the lender to confirm the program, acceptable rent evidence, full old-home payment and reserves. Get that calculation first. Then decide whether keeping the old home works for the next purchase.
Quick questions
Can I use all the rent to qualify?
No. The Fannie Mae calculation described here uses 75% of documented gross rent, with limits on how the result is used.
Does signing a lease solve the documentation requirement?
No. A lease is not the permitted rent documentation for a Fannie Mae departing residence under this guidance.
Is this the rule for FHA, Freddie Mac or every lender?
No. Other programs and lender requirements need their own review.
Sam Alpert, NMLS #1961555. Spring Home Company Incorporated, NMLS #2741914. Equal Housing Lender.