Section 121 Exclusion for Military Real Estate Planning

By Cynthia Meyer, CFA®, CFP®, ChFC®

What you will get from this article:

Section 121 exclusions are a popular topic for homeowners; however, military homeowners get some exclusive benefits that are important to know about. Military families usually make housing decisions under circumstances that look very different from those of civilian homeowners.

A permanent change of station (PCS), deployment, or career transition can create situations where a family moves out of a home sooner than expected and, in many cases, that home becomes a rental property. It’s not necessarily because the family planned to become real estate investors, but selling immediately may not always make sense, so rental real estate can “accidentally” fall in their laps.

That brings up the tax question of, “What happens when a former primary residence becomes a rental and is eventually sold?”

Many homeowners assume that once a property becomes a rental, capital gains taxes are just part of the deal. But for military homeowners, the rules may allow more flexibility in this case.

Section 121, the capital gains exclusion for the sale of a primary residence, allows eligible homeowners to exclude up to a certain amount of gain from taxation. For military families, special rules can extend the planning window in ways that are not available to most homeowners.

In this article, we’ll look at how the Section 121 exclusion works, how military homeowners may be able to suspend the standard 5-year lookback period, and what limitations they need to understand when a former primary residence becomes part of a rental property investment strategy.

What Is Section 121?

Section 121 is the capital gains tax exclusion available for homeowners selling a primary residence. Under current rules, eligible homeowners may exclude up to:

• $250,000 of capital gains if filing single
• $500,000 of capital gains if married filing jointly

In most situations, homeowners must have lived in the property as their primary residence for at least two of the past five years before the sale in order to qualify for the full exclusion. This can create tax savings for homeowners whose property has appreciated in value over time, especially in stronger real estate markets or after making improvements to the home.

For military families, however, some of these standard rules may work differently depending on active duty status and relocation orders.

Why Military Families Have Different Homeownership Challenges

Military families have their own set of challenges when it comes to financial planning for their real estate, because they often make housing decisions on timelines they do not fully control.

A new set of orders can mean moving sooner than expected, sometimes before a family has lived in the home long enough to meet the standard two out of five year Section 121 requirement.

The Accidental Landlord

Because of this, many military homeowners become “accidental landlords.” A home that was originally purchased as a primary residence may become a rental property because selling immediately is not practical or financially attractive.

That means there are different planning considerations with military homeowners than for civilian homeowners. For military families, housing decisions have to work with:

• Permanent Change of Station (PCS) timing
• Deployment considerations
• Rental property decisions
• Longer-term tax planning

Because of that, military homeownership tends to require more flexibility than traditional homeownership and a clearer understanding of the rules that may apply when a former home becomes a rental property.

The Special Section 121 Rules for Military Members

One of the biggest differences for military homeowners when it comes to Section 121 exclusions is the ability to suspend the standard 5-year lookback period.

Under the regular Section 121 rules, homeowners need to have lived in the home for two of the past five years before the sale. But eligible military members may be able to suspend that 5-year period for up to 10 years during a qualified duty assignment.

This can create the flexibility needed to still take advantage of the exclusion despite relocation orders. A military family may be able to move out of a primary residence, rent the property for several years, and still potentially qualify for the Section 121 exclusion when they eventually sell.

For example, a homeowner who lived in a property for two years before moving due to military orders may be able to rent that property for 10 or more years and still preserve the opportunity to use the full exclusion — assuming the applicable requirements are met, of course.

That can completely change the planning conversation for military families who move frequently, accumulate rental properties along the way, and want to take advantage of this exclusion.

Partial Exclusions and Proration Rules

While the regular Section 121 rules state that you have to live in a property for two out of the last 5 years before selling to qualify for the exclusion, military homeowners may still qualify for a partial Section 121 exclusion even if they have not lived in the property for the full two out of five years.

This can become especially useful when military orders create an earlier-than-expected move. For example, a service member may receive PCS orders after 12 or 18 months in the home. In situations like these, the exclusion may be prorated based on the amount of time the property was used as a primary residence.

That flexibility is important because many civilian homeowners generally need a qualifying extenuating circumstance to receive a partial exclusion. Military relocation orders can create additional planning opportunities that are specifically designed for the realities of military life.

The amount ultimately excluded depends on factors such as how long the property was used as a primary residence and whether the applicable requirements are met.

Important Limitations and Nuances of Section 121 for Military Homeowners

While the military suspension rules can create some planning opportunities, there are also key limitations that you’ll want to understand before deciding on a strategy.

You Can Only Suspend One Property at a Time

One of the biggest nuances for the Section 121 is that military homeowners generally cannot suspend the lookback period on multiple properties at the same time.

This becomes especially important for military families who have accumulated several rental properties over multiple PCS moves. Strategic planning with a trusted real estate financial planner and/or CPA may be needed to decide which property should use the suspension period and when.

Active Duty Status Matters

It’s important to keep in mind that the suspension rules are tied to qualified active duty service and military orders. That means the timeline calculations can change once a service member leaves active duty. Some homeowners assume the suspension automatically continues indefinitely, but the rules regarding the timeline can change after separation from service.

The Timeline Planning Can Become Complex

Timeline planning can become even more complicated when military families have:

• Multiple homes
• Multiple PCS-related moves  
• Overlapping ownership periods
• Rental properties in different stages of ownership

Because of the added complexity, there is some “weaving” that needs to be done to make the most of the exclusion. Some military families strategically stagger property sales over several years to preserve their eligibility for exclusions on different homes while staying within the applicable rules.

Section 121 Does Not Eliminate Depreciation Recapture

The Section 121 exclusion does not eliminate depreciation recapture. While Section 121 may allow eligible homeowners to exclude certain capital gains from taxation when selling a primary residence, depreciation claimed during the years the property was used as a rental may still be taxable upon sale.

For residential rental properties, depreciation is generally taken using a 27.5-year straight-line schedule. Over time, those deductions can create substantial tax savings while the property is being rented.

However, when the property is eventually sold, some of that depreciation may be “recaptured” and taxed separately. This is important to keep in mind because a homeowner may still owe taxes related to depreciation recapture even if they qualify for the Section 121 capital gains exclusion.

What Section 121 Planning Can Look Like

Here’s a real-life example of what planning for the exclusion can look like: a military homeowner who is deployed to a combat zone for much of the year, as a result, has significantly lower taxable income than usual.

At the same time, they own a rental property that has accumulated substantial depreciation over several years of ownership. Instead of waiting to sell the property later, they choose to sell during that unusually low-income year.

Why? While the Section 121 exclusion may help reduce the capital gains exposure, depreciation recapture may still be taxable. But if the homeowner’s taxable income is much lower during deployment, that recapture may be taxed at lower effective rates than it would have been during a higher-income year.

Strategic planning here can mean significant tax savings. Strong tax planning often involves looking at current income levels, deployment timing, timing of the property sale, capital gains exposure, and depreciation recapture exposure to create a strategy with the entire picture in mind.

And, for military homeowners with rental properties, understanding all of those moving pieces can create planning opportunities that may not exist in more traditional situations.

Why Having Military-Specific Financial Planning Can Make a Difference

Military financial planning is highly nuanced because nearly every major planning area comes with military-specific rules, benefits, and exceptions. Housing is one example, but it’s far from the only one.

Military families may also need to plan around VA benefits, GI Bill education benefits, disability income, deployment-related tax rules, PCS moves, survivor benefits, and retirement income from a military pension. Each of these can affect the broader situation in ways that general financial advice may not fully cover.

There are also additional benefits and protections that can shape planning decisions, such as:

• Moving expense deductions for eligible military moves
• SCRA and MLA protections
• Public Service Loan Forgiveness eligibility
• Parent PLUS loan discharge opportunities for certain disabled veterans
• Combat zone tax benefits
• Additional TSP contribution opportunities during deployment
• The Savings Deposit Program during eligible deployments

For service members, veterans, and military families, working with trusted professionals like the Fee-Only financial planners in the Military Financial Advisors Association who understand these rules can help create more opportunities, avoid expensive mistakes, and make more informed decisions when it comes to housing, taxes, education, retirement, and estate planning.

Don’t Miss Out on Valuable Real Estate Planning Opportunities

Military families don’t always become real estate investors on purpose, but because of PCS moves, they may end up with some tax planning opportunities that most homeowners don’t have. Frequent moves, deployment timing, rental periods, and ownership history can all affect how a property is treated when it is eventually sold. 

For military families who relocate often, Section 121 may create new, valuable planning opportunities that are easy to miss without the right guidance. The key to making the most of the exclusion is understanding how the rules apply to military homeowners before making a decision.

Whether you are deciding to sell, rent, or hold a former primary residence long term, the timing of that decision can have tax consequences that you need to prepare for. Because these rules are nuanced, it can be helpful to work with a financial planner and a CPA who understand military-specific financial and tax planning considerations.

For more insights on real estate, taxes, and financial planning, check out more from the Real Life Blog.