Buying a Second Home at the Jersey Shore: Second Home or Investment Property?

It depends on how you'll use the house. Under Fannie Mae's rules, which many lenders follow, a second home is a one-unit home you live in for part of the year, suitable for year-round use and under your sole control, and it can't be a rental property or timeshare. A home you own but don't live in is an investment property. The IRS uses a separate set of tests for taxes, so the same house can raise two different questions.

I'm Dennis Mark Interdonato with The Dennis Mark Group. Buying a shore house in Monmouth or Ocean County as a second home is one of the most common goals I hear, and "second home or investment?" is the first question your lender will ask. Here's how the definitions work.

How does Fannie Mae define a second home?

Fannie Mae's Selling Guide, section B2-1.1-01, lists the requirements. A second home:

• must be occupied by the borrower for some portion of the year
• is restricted to one-unit dwellings
• must be suitable for year-round occupancy
• must be under the borrower's sole control
• must not be rental property or a timeshare arrangement
• can't be subject to any agreement that gives a management firm control over who occupies it

The loan also has to be underwritten through Fannie Mae's automated system and receive an approval recommendation, and a pricing adjustment applies to certain second-home loans.

And an investment property?

The Selling Guide's definition is one line: an investment property is owned but not occupied by the borrower. A pricing adjustment applies to every loan on an investment property. Your lender will explain how that changes your rate and costs compared with a second-home loan.

Can you rent out a second home?

Some. Fannie Mae says that if the lender identifies rental income from the property, the loan can still be delivered as a second-home loan, as long as that income isn't used to qualify for the loan and every other second-home requirement, including your own occupancy, is still met. A management agreement that controls who stays there is a different story, because it breaks the sole-control rule.

Tell your lender exactly how you plan to use the house, including any rental plans. The occupancy type on your application drives the loan's terms, and it has to match reality.

If you plan to rent the house out, New Jersey's taxes and fees on short-term rentals and each town's own rules come into play. Those are covered in renting out a Jersey Shore second home.

How does the IRS look at a vacation home you rent?

The IRS has its own test in Publication 527. You use a dwelling unit as a home during the tax year if your personal use is more than the greater of:

• 14 days, or
• 10% of the days it's rented at a fair rental price

Personal use includes days used by you or another owner, by family members, and by anyone paying less than a fair rental price. The publication also says that if you use the unit as a home and rent it for fewer than 15 days in the year, you don't include that rent in your income, and the expenses aren't treated as rental expenses. When a home is used for both, expenses are divided based on the number of days used for each purpose.

How those rules apply to your situation is a question for your CPA. The point for a buyer is to plan your use of the house with your lender and your tax professional before you close, not after.

What should you check on a second home at the shore?

• The full monthly cost: mortgage, property taxes, insurance, association fees and upkeep. On a shore home, ask about flood insurance early.
• The flood zone and any elevation certificate. Read what flood zones AE, VE and X mean.
• Association rules, if the home is in a condominium or homeowners association, especially on rentals.
• The town's rules on rentals, if renting is part of your plan.
• The loan size. Above $1,209,750 in Monmouth or Ocean County for 2026, you're in jumbo territory. See what is a jumbo loan.

When is the right time to buy a shore house?

When the monthly payment works and the house is right. Waiting for rates to drop means competing with a bigger crowd later. National Association of REALTORS® research found a one-point drop in mortgage rates could add about 5.5 million households, according to NAR, to the pool of potential buyers. And when you find the right one, buy it. You already know what you want.

See how I help buyers find a shore or waterfront home on the waterfront page and in the Luxury & Waterfront Guide.

Frequently Asked Questions

Can a second home be a two-family house?

Not under Fannie Mae's second-home rules, which restrict second homes to one-unit dwellings. Ask your lender about other loan options for a multi-unit property.

Can I use expected rental income to qualify for a second-home loan?

Fannie Mae says rental income from a second home can't be used for qualifying purposes. Your lender explains how they treat it.

Do days my family uses the house count as personal use for taxes?

Yes. IRS Publication 527 counts days used by family members as personal use. Your CPA applies the rules to your situation.

Can a property manager run my second home?

Fannie Mae says a second home can't be subject to an agreement that gives a management firm control over its occupancy. Talk to your lender before signing any management agreement.

This is general information, not legal, tax or lending advice. Your lender, CPA and attorney advise on your purchase. Sources checked October 10, 2026.

About the author

Dennis Mark Interdonato is a REALTOR® and Master CDRE® who leads The Dennis Mark Group at Keller Williams Realty Ocean Living in Point Pleasant, NJ, helping buyers and sellers throughout New Jersey make their next move, with Monmouth and Ocean County as home base. Read more about Dennis Mark.

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