Bookkeeping Permit Requirements in Portland, ME

Complete permit and license guide for starting a bookkeeping in Portland, Cumberland County, Maine.

Verified 2026-09-06 6 stops $75–$250 est. 1–3 weeks to register business and obtain all required licenses
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Not legal advice. Requirements may change — always verify with your local government authority before applying. Key agencies and fees on this page were re-checked against official government sources on .

Federal — start here

2 stops

  1. EIN (Employer Identification Number)

    Required if you have employees or operate as an LLC or corporation. Free from the IRS, obtained instantly online. Sole proprietors without employees may use their SSN, but an EIN is recommended for privacy and professional credibility.

    Official government source

    FreeImmediate (online application)

  2. IRS Preparer Tax Identification Number (PTIN)

    Required for any paid preparer who prepares or assists in preparing federal tax returns for clients. If your bookkeeping practice includes any federal tax return preparation, you must obtain and renew your PTIN annually. Bookkeeping-only services (no tax return preparation) do not require a PTIN.

    Official government source

    FreeImmediate (online at IRS.gov)

State of Maine

2 stops

  1. Maine Business Registration (Secretary of State)

    Bookkeeping and accounting businesses operating in Maine register with the Maine Secretary of State's Bureau of Corporations, Elections and Commissions if structured as an LLC, corporation or partnership. An LLC is formed by filing a Certificate of Formation (form MLLC-6). Sole proprietors do not register with the State: a sole proprietor or partnership using a trade name files an assumed-name certificate with the city or town clerk where the business is located, under 31 MRSA section 2. An LLC is commonly chosen for the personal liability protection it provides.

    Official government source

    $175 Certificate of Formation filing fee for an LLC (form MLLC-6); expedited service costs $50 extra for next-business-day or $100 for same-day filing. A sole proprietor pays no state filing fee - the trade name certificate goes to the city or town clerk instead.The Bureau of Corporations, Elections and Commissions currently reports corporate filing processing time of 40-55 business days; expedited filing is available for the added fee

  2. Maine Sales Tax Registration (Maine Revenue Services)

    Maine taxes sales of tangible personal property and a short statutory list of services; bookkeeping and accounting services are not on that list, so the service itself is not taxable. Maine's Service Provider Tax, which covered a separate set of services, was repealed effective 1 January 2026. You still register with Maine Revenue Services for a sales tax account if you sell taxable goods at retail, and you owe use tax at 5.5 percent on supplies and equipment bought untaxed for your own use.

    Official government source

    Free - Maine Revenue Services charges no fee to register for a sales tax accountRegister online through the Maine Tax Portal; the account is normally active immediately. Returns are due by the 15th of the month following the filing period.

City of Portland / Cumberland County

2 stops

  1. No Portland Business License for Bookkeeping Services

    Portland has no general business license, business tax certificate or occupational license. The City's Business License Administrator (207-874-8557, [email protected]) issues licences only for specific regulated categories: food service and liquor establishments, food trucks and pushcarts, temporary events, flea markets and second-hand dealers, marijuana businesses, massage therapists and establishments, taxi/livery/tour vehicles, farmers market vendors, fire permits, scrap metal recycling and transient sellers. Bookkeeping and accounting services are not among them, so no city licence is required. A sole proprietor or partnership using a trade name must still file a d/b/a with the City.

    Official government source

    No fee - bookkeeping is not a licensed category in Portland. The only city charge that may apply is the $10 d/b/a filing fee if you use a trade name.No application process; file the d/b/a before doing business under a trade name

  2. Portland Home Occupation Permit (if home-based)

    Running a bookkeeping business out of a Portland home requires a Home Occupation permit from the City of Portland Permitting & Inspections Department, which confirms the use meets the land use code's home occupation standards - the business must stay secondary to the residential use and must not change the building's appearance or generate significant traffic.

    Official government source

    $150.00 (City of Portland Building Permits and Inspections Fee Schedule)Apply through Permitting & Inspections before operating; the permit is issued after zoning review

Terminus

Open for business — est. $75–$250 · 1–3 weeks to register business and obtain all required licenses

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