Capital Gains Tax Selling House Alaska Guide

Capital gains tax when selling a house in Alaska is almost entirely a federal problem. If the house was your main home and you meet the ownership and use tests, Internal Revenue Code §121 may let you exclude up to $250,000 of gain, or $500,000 on a joint return. Alaska does not add a personal state capital-gains tax on top of that. The Alaska Department of Revenue records that the Legislature repealed the individual income-tax pieces of AS 43.20 in 1980. This article is about that primary-residence exclusion — not a 1031 exchange.

Sellers who are also buying again should still get pre-approved on the next house so the closing calendar and the tax calendar do not collide. Premier Mortgage (NMLS# 1168048) can work the purchase file while you sit with a CPA on the sale. Subject to credit approval; terms vary.

Capital gains tax selling a house in Alaska: federal §121

IRS Topic 701 and Publication 523 are the practical sources.

In general you must meet both the ownership test and the use test during the five years ending on the sale date:

Ownership: you (or your spouse, if filing jointly) owned the home for at least 24 months out of those five years
Use: you used it as your main home for at least 24 months out of those five years. On a joint return, both spouses must meet the use test; either spouse can satisfy ownership

You can meet ownership and use during different two-year windows inside that five-year lookback. You generally cannot stack this exclusion if you already excluded gain on another home during the two years before this sale.

The dollar caps are $250,000 (single) and $500,000 (married filing jointly). They are exclusion caps, not a guess at your profit. Gain is sale price minus adjusted basis (what you paid, plus allowed improvements, minus depreciation you actually took). Publication 523 has the worksheets.

If you receive a Form 1099-S, you report the sale even when the gain is fully excludable. If some gain remains taxable, you use Form 8949 and Schedule D. That is IRS procedure, not Alaska procedure.

Alaska’s piece: no personal state capital-gains tax

There is no Alaska Form that mirrors California’s or New York’s add-on. The Department of Revenue’s corporate-income-tax history is explicit: 1980 — The Legislature repealed the parts of AS 43.20 that impose the individual income tax. No individual income tax means no state-level individual capital-gains rate on the sale of your Eagle River house.

That is not the same as “the sale is tax-free.” Federal tax still applies to gain above the §121 cap, to gain that fails the tests, and — for higher-income taxpayers — possibly the federal Net Investment Income Tax on the non-excluded portion. The IRS has stated that gain excluded under §121 is also excluded from NIIT.

Borough property tax is a different animal. Selling does not create a state income-tax bill; it may still involve prorations and exemptions on the local roll. See Alaska property tax exemptions for the exemption side, not for capital gains.

This is not a 1031 article

A 1031 exchange is a federal deferral for investment or business real property. Your primary residence is the §121 world. Mixing the two in a blog post is how people miss the 45- and 180-day 1031 clocks or, worse, treat a house they lived in as if it were a rental without looking at depreciation recapture.

If you converted a rental to a main home, or a main home to a rental, Publication 523 and a CPA need to split the gain. Non-qualified use after 2008 can shrink the exclusion. Depreciation you claimed as a landlord is generally not eligible for the §121 haircut. None of that is unique to Alaska. All of it still matters in Alaska because the federal return is the only income-tax return most individuals file here.

Military and PCS: the five-year clock can pause

Topic 701 lets certain members of the Uniformed Services, Foreign Service, or intelligence community suspend the five-year test period for up to 10 years while on qualified official extended duty. That duty is more than 90 days (or indefinite) at a station at least 50 miles from the main home, or living in government housing under orders.

That is the JBER / Eielson / Coast Guard fact pattern. A family that bought in Eagle River, PCS’d to the Lower 48, and kept the house as a rental may still have a path back to the exclusion if the suspension election applies. It is an election, not automatic magic. Read Publication 523 and talk to a tax pro before you list.

Basis, improvements, and Alaska-specific costs

Gain shrinks when basis is right. Keep records for:

Original purchase price and closing costs that are added to basis
Room additions, a new roof, a boiler, insulation, a garage — capital improvements, not paint
Special assessments that increase basis
Casualty losses and insurance recoveries that adjust basis

A $40,000 arctic-entry and roof job on a hillside house is often basis. A $400 gallon of stain is usually not. Publication 523 and Publication 551 draw that line. Alaska’s construction prices make the file worth keeping.

Selling costs (listing fee, title, required repairs you pay) reduce the amount realized. They belong on the worksheet, not as a vague “the agent said I won’t owe anything.” See Alaska home selling costs for the closing-table list; this article is the tax list.

When people still owe federal tax on an Alaska home sale

Gain above $250,000 / $500,000
Failed use or ownership tests, and no partial-exclusion fact pattern (health, job change, unforeseen circumstances — Publication 523)
A second home or cabin that was never the main home
Depreciation recapture from a rental period
A sale within two years of another excluded main-home sale
A short-term flip where the house never became a main home

A Soldotna cabin used 10 weekends a year is not a main home because you wish it were. The IRS looks at where you actually lived.

If you are selling your home in Alaska and buying the next one, the exclusion does not require you to buy another house. That old “buy up or pay tax” story is not §121. You can exclude and rent. You can exclude and move into a smaller Palmer ranch. You can exclude and sit in cash. The next purchase is a mortgage decision, not a condition of the exclusion.

Need listing help? Email contact@akhomehq.com or use the contact form.

A simple sequence before you list

Estimate amount realized (price minus selling costs)
Estimate adjusted basis (worksheets in Pub. 523)
Subtract. If the gain fits under your cap and you meet the tests, plan for a 1099-S and a quiet federal return
If it does not fit, call a CPA before you pick a list price that assumes zero tax
If you are buying again, get pre-approved so the purchase does not depend on a tax refund you have not earned

Thinking about the next house after you sell? Getting pre-approved helps you know your budget before you start shopping. Premier Mortgage (NMLS# 1168048) can help.

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Frequently Asked Questions

Do I pay Alaska state capital gains tax when I sell my house?

No individual Alaska income tax applies to the gain. The Department of Revenue’s history notes the 1980 repeal of the individual income-tax provisions in AS 43.20. You may still owe federal tax on gain that does not fit §121. Property-tax prorations at closing are separate.

How do I know if I meet the two-out-of-five-year test?

Count the 24 months you owned the house and the 24 months you used it as your main home during the five years ending on the sale date. Joint filers both need the use test; either spouse can supply ownership. Publication 523 explains partial exclusions if a job change or health event cut the stay short.

Does the $500,000 exclusion apply if only one spouse’s name is on the Alaska deed?

Possibly, if you file jointly, both meet the use test, and either spouse meets ownership. Vesting on the warranty deed is not the whole test. A CPA should look at the deed, the marriage date, and any prior exclusion inside two years.

I PCS’d from JBER and rented the house. Can I still use §121?

Maybe. Topic 701 allows a suspension of the five-year clock for up to 10 years on qualifying official extended duty 50 miles or more from the home. Rental periods can also create depreciation that stays taxable. Do not list on a guess; pull the orders and the depreciation schedules first.

If I exclude the gain, do I still have to report the Alaska home sale?

If you receive Form 1099-S, the IRS says you report the sale even when the gain is excludable. If no 1099-S and the entire gain is excluded, Publication 523 describes when a return entry is still required. When in doubt, report it cleanly rather than hoping the 1099 is ignored.