Capital Gains Tax When Selling a House in Maine: What to Check

First, separate taxable gain from cash in your pocket

Suppose you sell for $650,000 and have $40,000 in selling expenses that qualify for this calculation. Your amount realized would be $610,000. If your properly adjusted basis is $460,000, your gain before any exclusion would be $150,000. This simplified illustration assumes those figures have already been checked for the applicable tax rules.

A remaining mortgage changes the cash available to you at closing; it does not substitute for your basis. Someone with a large loan can receive relatively little cash and still have a gain. Someone who owns a home outright does not automatically owe tax on the full sale price.

How the federal main-home exclusion works

Under the IRS home-sale rules, eligible sellers may exclude up to $250,000 of gain, or up to $500,000 for a qualifying married couple filing jointly. These limits apply to gain, not the gross sale price.

Generally, the ownership and use tests look at two years during the five years ending with the sale. For the larger joint exclusion, either spouse must satisfy ownership and both must satisfy use. A prior exclusion within the preceding two years can affect eligibility.

Do not decide eligibility from the headline limits alone. Partial exclusions and exceptions may apply in particular circumstances, and the full rules need to be checked against your dates and history.

Your records can change the calculation

Basis often begins with acquisition cost, but it is adjusted over time. Certain capital improvements can increase it, while depreciation and some other items can reduce it. Routine upkeep is not automatically the same as a capital improvement. The IRS basis guide explains these distinctions.

Create one folder containing the original purchase settlement statement, improvement invoices, records of credits or reimbursements, and any depreciation schedules. Include your expected selling-expense statement. Label uncertain items for your tax professional rather than guessing which expenses count.

If you inherited the home, received it as a gift, rented it, or used part of it for business, flag that history at the beginning of the conversation. Those details can change the analysis; a simple “sale price minus what I paid” worksheet may be incomplete.

Buying another home does not answer the tax question

Do not assume that spending the proceeds on another house automatically eliminates a tax liability. Review eligibility under the actual home-sale exclusion rules and your property history. Likewise, retirement or reaching a particular age does not by itself settle the calculation.

IRS Publication 523 addresses situations such as rental or business use, depreciation, and reporting. If you receive Form 1099-S, ask how the sale must be reported even if you expect the gain to be excluded. If part of the gain is taxable, ask about any estimated-payment obligations before tax-filing season arrives.

What Maine sellers should discuss separately

Federal exclusion eligibility is not a complete state-tax review. Ask your tax adviser to calculate any Maine income-tax consequences as well as the federal result. Transfer tax at closing is also different from income tax on a gain.

For a nonresident selling Maine real estate, Maine Revenue Services describes real estate withholding, generally 2.5% of the sale price, subject to applicable rules, exemptions, and reductions. It is an estimated payment toward potential Maine tax liability, not necessarily the final tax. Raise this early with the closing team so any required application can be handled on time.

Take these questions to your tax adviser before listing

Bring your ownership and occupancy dates, acquisition documents, improvement records, rental or business-use history, and a proposed sale estimate. Ask: What is my adjusted basis? Do I qualify for an exclusion? What must be reported? Should I reserve money for tax or make an estimated payment?

If the answer depends on a sale date or missing records, find that out before setting your moving budget. Your agent can help organize sale and closing information, while your tax adviser determines the tax treatment.

Plan the sale around the numbers that matter

My free Maine Home Seller’s Guide includes guidance on estimating proceeds and organizing your sale. It is a planning resource, not a substitute for a tax calculation. Request your free copy on my seller page, using the name and email form under “Home Seller’s Guide.”

I’m Tony Duong with Landing Real Estate. Let’s discuss your selling timeline so we can coordinate the property and closing information your advisers need.

Reviewed October 23, 2026. Tax rules, filing requirements, and individual circumstances can change; verify the rules for the year of your sale.