We reviewed 70 firms in Maine: 15 met the listing bar, but none reached 70% evidence coverage, so no list in Maine can be ranked yet.
Start with the Portland-South Portland metro page, the only one in Maine, which lists 12 firms but doesn't have enough third-party evidence to rank yet, so it compares firms without an order. 3 more firms outside that metro are listed below.
Outside the metro pages: 22 profiles reviewed, 3 met the listing bar, 0 scored (evidence coverage of 70% or more).
Across all 15 firms we list in Maine, 1 publish a price or a starting price and 14 say nothing about fees. The share publishing, 7%, compares with 10% nationally.
Without Maine records we can match, the evidence here is what firms publish about themselves, and that alone stops short of the 70% coverage a ranking needs. Median evidence coverage here is 66%. Check any CPA claim yourself on the Maine Board of Accountancy lookup.
What a bookkeeper tracks in Maine
General information, not tax advice. Which of these reach your business depends on its entity type, what it
sells, whether it has employees and the schedule each agency assigns. Your bookkeeper keeps the records; you, or whoever your
engagement letter names, file. Checked on the linked official pages on September 26, 2026.
Sales and use tax.Your sales tax schedule depends on your average liability. At $600 or more a month you file monthly. From $100 to under $600 a month you may file quarterly, and below that, semiannually or annually. Returns are due the 15th of the month after your reporting period ends, and Maine Revenue Services reviews frequencies each year.Maine Revenue Services, checked Sep 26, 2026
Income tax withholding.Maine withholding is reported on the quarterly Form 941ME, filed electronically. If you withheld less than $18,000 in the 12 months ending June 30 of the prior year, you pay quarterly, due with the return on the last day of the month after the quarter. At $18,000 or more, payments are semiweekly.Maine Revenue Services, checked Sep 26, 2026
Unemployment contributions report.Form ME UC-1, the unemployment contributions quarterly report, is due by the last day of the month after each calendar quarter ends.Maine Department of Labor, checked Sep 26, 2026
Annual report.Maine requires an annual report every year for a business to stay in good standing with the Secretary of State. The legal filing deadline is June 1.Maine Secretary of State, checked Sep 26, 2026
CPA title.In Maine, only a person licensed as a certified public accountant may use the title "certified public accountant" or the abbreviation "CPA". Titles such as "chartered accountant" or "licensed accountant" are also limited to license holders.Maine Legislature, checked Sep 26, 2026
Frequently Asked Questions
How do I check a bookkeeper's CPA license in Maine?
Search the firm or the person on the Maine Board of Accountancy lookup. A bookkeeper doesn't need a CPA license to keep your books; it matters when a firm uses the CPA title or you need audited or reviewed statements.
How can I confirm a Maine bookkeeping firm is a registered business?
Search its legal name on the Maine business entity search. A sole proprietor trading under its own name may not appear, and that alone isn't a warning sign.