Key figures
Maine receivables
2026, with sources
What is taxable
Maine’s sales tax is 5.5% on retail sales of tangible property, products transferred electronically (such as downloaded software), and a short list of services. There are no local sales taxes. From January 1, 2026 the separate Service Provider Tax was repealed and the services it covered, including telecommunications, cable and satellite, and digital audio and audiovisual services, became subject to sales tax at 5.5%.
Software-as-a-service sits outside that list in most cases. Maine’s guidance on digital publications draws the line at download: a downloadable copy is taxable, while access to view online without downloading is not. A SaaS company with no downloadable component is generally not collecting Maine tax, but one that ships a desktop client or downloadable product should look again.
Registration and filing
A remote seller of taxable goods, electronically transferred products or taxable services must register once its gross Maine sales exceed $100,000 in the previous or current calendar year, and begin collecting by the first day of the first month that begins no more than 30 days after crossing. It can cancel only after two consecutive calendar years below the threshold.
Returns are due by the 15th of the month after the period, on a monthly, quarterly, semi-annual or annual schedule set by MRS.
Deadlines
- 15th of the month after the periodSales and use tax return (monthly, quarterly, semi-annual or annual)
The federal baseline
This page covers what Maine adds. The federal rules underneath it apply here too.
Common questions
Is SaaS taxable in Maine?
Generally not, if nothing is transferred. Maine taxes products transferred electronically, which covers downloadable software, and its guidance treats digital products that can only be accessed and viewed online, not downloaded, as not taxable. The line is drawn by analogy, so confirm a particular service with MRS.
When does an out-of-state seller register in Maine?
When your Maine sales exceed $100,000 in the previous or current calendar year. Once you cross it, you must register and start collecting by the first day of the first month beginning no more than 30 days later: cross on May 15, collect from July 1.
Founder guides on this
- Sales taxSales tax nexus for startups: when you owe tax in a stateSince Wayfair, selling into a state can create a sales tax obligation. How economic nexus works, why SaaS is taxable in some states and when to register.
- RevenueDeferred revenue for SaaS startups, explainedAn annual prepayment is cash today and revenue over a year. How deferred revenue works under ASC 606, why it’s a liability, and the schedule behind it.
- StripeHow to reconcile Stripe payouts to your booksA Stripe payout is charges less fees, refunds and disputes, batched across days. How to book it gross, tie it to the bank, and keep revenue right.
More of the Maine guide
- AccountingAccounting and state tax in MaineCorporate tax, conformity to federal rules, apportionment and what it does to your books
- PayablesPayables and contractors in MainePaying vendors and contractors: 1099 filing, use tax, contractor tests and withholding
- PayrollPayroll taxes and employer rules in MaineWithholding, unemployment insurance, paid leave, minimum wage and the rules on paydays
- ComplianceCompliance and filings in MaineRegistering to do business, annual reports, franchise tax and the filing calendar
- AdvisoryAdvisory: credits and decisions in MaineCredits, incentives and the decisions that are cheaper to get right the first time
Sources
Checked against each agency’s own page on . Rates and thresholds change, usually on January 1.
- Maine Revenue Services — Sales and use tax rates and due dates
- Maine Revenue Services — Instructional Bulletin 43, registration of out-of-state sellers
- Maine Revenue Services — Business guide for sales, use and service provider tax (Dec 2025)
- Maine Revenue Services — Sales tax reference guide (digital products)
General information for US companies, not tax, legal or accounting advice for yours. Rules and thresholds change; confirm the specifics with a CPA or the agency before you act on them.