1031 exchange in
Maine.

Does Maine follow federal 1031 rules?

Maine conforms to federal Section 1031 for real property. The state-specific friction is Maine Real Estate Withholding (REW) — buyers must withhold 2.5% of total consideration on sales of $100,000+ by non-resident sellers, unless the seller obtains an exemption. The exemption procedure for 1031 exchanges runs through Form REW-5, filed at least 5 business days before closing with a copy of the §1031 exchange contract attached.

Maine capital gains tax structure

Maine taxes capital gains as ordinary income with a top bracket of approximately 7.15% in 2026 (graduated structure: 5.8% / 6.75% / 7.15%). No preferential long-term rate. No municipal income tax.

Maine retains a graduated three-bracket structure for 2026 — roughly 5.8% / 6.75% / 7.15%. There is no preferential long-term capital gains rate; gains are taxed at ordinary rates on Maine Form 1040ME. Maine conforms to most federal items, with state-specific add-backs for bonus depreciation and §179 expensing in certain years — your federal-to-Maine basis on a 1031 replacement is rarely identical, and a Maine CPA needs both schedules. Estimated tax is due quarterly when liability exceeds $1,000. Maine has no county or municipal income tax. Maine's estate tax remains in effect with a $7M+ exemption — relevant for 1031 chains that end at a step-up.

Federal tax treatment of a successful 1031 is deferral of capital gain and unrecaptured Section 1250 depreciation recapture (federally taxed at a maximum 25% when eventually recognized). Maine's state treatment sits on top of those federal rates.

Non-resident withholding in Maine

Maine Real Estate Withholding (REW) under 36 M.R.S. §5250-A requires the buyer (or real estate escrow person) to withhold 2.5% of the total consideration on sales of $100,000 or more by non-resident sellers. Withholding is reported and remitted on Form REW-1 within 30 days of closing. To claim a §1031 exemption, the seller files Form REW-5 (Application for Exemption or Reduction) with Maine Revenue Services at least 5 business days before closing, attaching a copy of the §1031 exchange contract. If REW-5 is approved, the buyer/escrow agent is relieved of the withholding obligation; if not approved (or not timely filed), the 2.5% comes out at closing and the seller files for refund through the Maine income tax return. Resident sellers avoid REW by providing the buyer Form REW-2 (residency affidavit) at closing.

Common 1031 replacement strategies in Maine

Maine 1031 replacement is dominated by Portland — the Old Port hospitality and small-bay multifamily market, plus the Bayside warehouse-conversion submarket, draws most institutional and family-office capital from Massachusetts and New Hampshire. Class B multifamily in Portland city limits trades 5.5–6.25% caps on stabilized product, tighter than the rest of northern New England, driven by structural supply constraint (Portland zoning, historic-district overlay, and the Portland peninsula's geographic limits). Outside Portland, the market is genuinely thin — Bangor supports a regional logistics and Class B multifamily base at 7.0–8.0% caps, and coastal hospitality (Bar Harbor, Camden, Boothbay) trades on operating-business economics rather than cap rates. Most 1031 buyers in Maine are MA or NH residents 1031-ing out of higher-tax markets into vacation-adjacent commercial; pure institutional capital below the Portland line is rare.

Top Maine CRE markets for 1031 buyers

Portland

Old Port hospitality (small boutique hotels, F&B real estate) and Bayside warehouse-to-multifamily conversions drive most of the institutional volume. Class B multifamily trades 5.5–6.25% caps on stabilized product — tighter than Bangor or Lewiston-Auburn by 100–200 bps because of structural supply constraint on the Portland peninsula. Class A office is challenged (post-COVID footprint reset hit Portland too); Class B medical office anchored by MaineHealth or Northern Light Health trades 7.0–8.0%. Industrial in the Westbrook/South Portland corridor 6.5–7.5%. The MA/NH cross-border buyer pool dominates — Portland is essentially a Boston exurban 1031 destination with a Maine zip code.

Bangor

Regional logistics gateway for northern Maine and the Maritimes, with I-95 distribution and Bangor International Airport (BGR) air-cargo — credit-tenant industrial trades 7.5–8.5% caps. Class B multifamily 7.5–8.5%, with Eastern Maine Medical Center (Northern Light Health) anchoring eds-and-meds demand. The market is illiquid; institutional 1031 capital is rare and most volume is local family-office or 1031 buyers stepping down from Portland pricing. Coastal demand drops off sharply north of Bangor — Aroostook County and Down East Maine are not 1031 markets in any meaningful sense.

Local counsel, recording, and filing in Maine

Maine records at the county level (16 counties) through Registries of Deeds. E-recording is accepted in most counties through Simplifile. Title insurance is competitive. The Maine-specific counsel question is REW compliance — Form REW-5 must be filed at least 5 business days before closing to claim the §1031 exemption, with a copy of the exchange contract attached. Miss the deadline and the buyer (or escrow agent) is required to withhold 2.5% of total consideration; you then chase a refund through a separate process. Any Maine-licensed real estate attorney handles this routinely; out-of-state attorneys often miss the lead time. Maine also has shoreland zoning, vernal-pool setbacks, and resource-protection overlays that are unusually strict — coastal and lakefront due diligence should include a local zoning review.

Common mistakes in Maine 1031 exchanges

• Missing the Form REW-5 5-business-day filing deadline. Form REW-5 (Application for Exemption from Maine Real Estate Withholding) must be received by Maine Revenue Services at least 5 business days before closing. Out-of-state attorneys and QIs frequently treat this as a same-week filing — by then the buyer (or escrow agent) is legally required to hold back 2.5% of total consideration. You then chase a refund through the Maine income tax return, which can take months. File REW-5 the moment you have a closing date, not the week of.
• Underwriting Portland multifamily at MA cap-rate compression. Portland Class B multifamily does trade tight (5.5–6.25%) by Maine standards, but it's not Boston. The buyer pool is shallower, the broker depth is thinner, and exit liquidity in a soft market is genuinely worse than the cap rate suggests. MA-resident 1031 buyers who underwrite Portland at suburban Boston exit assumptions often discover, three years in, that the bid stack at sale is half what they expected.
• Ignoring shoreland zoning and resource-protection overlays. Maine's shoreland zoning law (Mandatory Shoreland Zoning Act) imposes strict setbacks, lot coverage limits, and use restrictions within 250 feet of most water bodies (and 75 feet of streams). Vernal pools, deer wintering yards, and other resource-protection overlays add further constraints. Coastal and lakefront commercial property — exactly the inventory many out-of-state 1031 buyers target — often has materially less developable area than the lot acreage suggests. Get a Maine-licensed surveyor or land-use attorney to map the actual buildable envelope before you remove diligence contingencies.

What to do if you're starting a Maine-source 1031

1. Engage a Qualified Intermediary before the downleg closes. Your QI cannot be a disqualified person (attorney, CPA, or real estate agent who has represented you in the last two years).
2. Confirm state conformance and any clawback or withholding filings with a Maine-licensed CPA.
3. Identify replacement property within 45 days in writing, delivered to your QI, under the Three-Property Rule or one of the alternative identification rules.
4. Close on replacement within 180 days of the downleg closing or by your federal tax-return due date (with extensions), whichever is earlier.
5. File Form 8824 with your federal return reporting the exchange. File any required Maine state forms for the year, including any clawback or withholding-exemption filings.

FAQ: 1031 exchanges in Maine

How does Form REW-5 work for a 1031 exchange?

Form REW-5 is the Application for Exemption from Maine Real Estate Withholding. For a §1031 exchange, the non-resident seller files REW-5 with Maine Revenue Services at least 5 business days before closing, attaching a copy of the §1031 exchange contract (the agreement between the seller and the qualified intermediary). MRS reviews and either approves the exemption or denies it. If approved, the buyer (or escrow agent) is relieved of the 2.5% withholding obligation. If denied or untimely, the buyer must withhold 2.5% of total consideration and the seller pursues a refund via the Maine income tax return.

What's the difference between Form REW-1, REW-2, REW-3, and REW-5?

REW-1 is the buyer's withholding remittance form, filed with the 2.5% withheld within 30 days of closing. REW-2 is the seller's residency affidavit (Maine residents use this to relieve the buyer of withholding). REW-3 is the alternate residency-affidavit form for entity sellers. REW-5 is the exemption application for non-residents claiming a §1031 (or other) exemption — this is the form you care about on a 1031.

Does Maine REW apply to the upleg (replacement property) purchase?

REW applies on the seller side of any sale by a non-resident. On your downleg sale (where you're the seller), REW applies unless you obtain a REW-5 exemption. On your upleg purchase (where you're the buyer), REW is the seller's problem, not yours — but if you're acting as buyer for a non-resident seller's property, your closer is required to withhold unless they receive a REW-5 approval or a REW-2 residency affidavit from the seller.

Why do Portland cap rates compress so much tighter than the rest of Maine?

Three reasons. First, the Portland peninsula has hard geographic supply limits and historic-district overlays that constrain new construction. Second, the MA/NH cross-border buyer pool — affluent, tax-driven 1031 capital from Boston exurbs and Seacoast NH — chases Portland inventory specifically. Third, structural in-migration to Portland post-2020 produced rent growth that supported tighter underwriting. Outside Portland city limits, those tailwinds attenuate fast — Lewiston-Auburn, Augusta, and Bangor trade 150–250 bps wider on comparable Class B multifamily.

Are coastal Maine inn/B&B properties valid 1031 replacement?

Yes for the real property components (land, building, fixtures). Personal property (FF&E, linens, kitchen equipment, reservation systems) is not §1031-eligible after the 2017 TCJA. Operating-business goodwill is not eligible. For a typical Bar Harbor or Camden coastal inn, the basis allocation between real and non-real property may be 60/40 or 70/30; only the real-property share defers under §1031. Get a Maine cost-segregation-trained CPA involved before closing.

Does Maine have a clawback regime like Massachusetts?

No. Maine fully conforms to federal §1031 with no separate clawback or annual information-return requirement. When you eventually sell the Maine-source replacement (or a successor replacement) outside an exchange, Maine taxes the Maine-source gain in that year — but there's no ongoing tracking obligation during deferral. This is one of the meaningful advantages of doing a 1031 into Maine versus into Massachusetts.