Capital Gains Tax When Selling a Home in Washington: What Bellingham Owners Need to Know

Capital gains tax is one of the most misunderstood parts of selling a home, and it often creates unnecessary anxiety. Some sellers assume they will owe a large tax bill. Others assume it will never apply to them. Both assumptions can be wrong depending on the property and how it has been used.
The short answer is: many primary residence sellers may not owe federal capital gains tax due to the homeowner exclusion, but the rules depend on ownership, use, and the property’s history. Rental properties, inherited homes, and second homes can be different.
Why This Topic Feels Confusing
The rules are not intuitive, and most homeowners do not deal with them often enough to remember the details. Add in headlines, social media advice, and well-meaning friends, and it becomes easy to feel unsure.
The goal is not to memorize tax law. The goal is to know what questions to ask early so you do not guess.
The Primary Residence Exclusion and Why It Matters
For many homeowners, the primary residence exclusion is the reason capital gains tax never becomes an issue. Generally, it may apply when the homeowner meets ownership and use requirements. Timing and life changes matter here, so it is not something to assume. It is something to confirm.
When Capital Gains Tax Is More Likely to Matter
The story changes when a property has been a rental, a second home, or an inherited property, or when there have been long periods where the home was not used as a primary residence. Depreciation recapture can also become relevant for rentals.
This is the part that catches people off guard. Not because they did something wrong, but because the property’s history affects the outcome.
Washington State Versus Federal Rules
Washington does not currently impose a state capital gains tax on the sale of primary residences. Federal rules are still the main driver for most homeowners, and that is where planning decisions typically live.
Why Planning Before You List Preserves Options
Tax-related planning, when it applies, is most effective before you list. Once you accept an offer, your choices narrow quickly.
The most empowering approach is to understand whether capital gains is even part of your situation. If it is not, you can set the worry down. If it is, you can plan with eyes open.
ABOUT THE AUTHOR
Andi Dyer is a Bellingham-based real estate broker with RE/MAX Whatcom County, specializing in helping longtime homeowners and sellers make confident, well-informed decisions. With a calm, data-driven approach and strong negotiation expertise, Andi focuses on protecting equity, reducing stress, and guiding sellers through the process with clarity and care.
📍 Serving Bellingham and all of Whatcom County
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If tax uncertainty is part of what is holding you back from planning your next step, you can start here:
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For longtime homeowners:
Understanding tax exposure before you list can expand your options and reduce surprises later. A brief conversation with a qualified tax professional is often enough to clarify what applies to you.
















