How to Choose a Bookkeeper in Maine (2026)

The short version for Maine: look the firm up on the state's records, search the Maine Board of Accountancy if it says it's a CPA practice, and don't sign until the fee and the monthly close date are written down. Of the 15 Maine firms we list, 1 publishes a price.

What a Maine bookkeeper keeps track of

What follows is what Maine's own agencies publish about the filings a small business's books have to support. It isn't tax advice, and your entity type, sales, staff and assigned schedule decide which ones are yours.

• 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. Source: Maine Revenue Services, checked September 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. Source: Maine Revenue Services, checked September 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. Source: Maine Department of Labor, checked September 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. Source: Maine Secretary of State, checked September 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. Source: Maine Legislature, checked September 26, 2026.

How to check a Maine firm yourself

The Maine Board of Accountancy lookup settles any CPA claim in a minute. For the business itself, search its legal name on the Maine entity search. Someone trading under their own name may not be there at all, and that's normal. We can't match Maine's records automatically, which is why most Maine firms here show Not verified for a license or registration. It means unchecked, not failed, so run the search yourself on your shortlist.

What Maine firms put in writing

14 of the 15 firms we list in Maine say nothing about fees on their websites, and 1 publish a price or a starting price, 7% against 10% nationally. None of the 15 say how often reports arrive (0%, against 21% nationally), none describe onboarding and 1 offer catch-up or cleanup work. QuickBooks is the software named most, by 33% of Maine firms.

Where to start in Maine

• Metro pages: Portland-South Portland (12 firms, compared).
• Firms that publish a price or a starting price: Maine Beancounters.
• Firms that say they take on catch-up work: BalancedReturns.

Questions for the first call

• What does the fee cover, and at what volume does it go up?
• On what day of the month will my books be closed, and what report do I get?
• Does the fee include preparing the sales and use tax filing, or only the records behind it?
• How do you keep the records for income tax withholding ready before each due date?
• Will you take on months I'm behind on, and is that priced separately?
• Which accounting software do you work in, and who owns the file if we part ways?