Maine is quietly becoming a hub for innovation, with thriving industries in biotechnology, aquaculture, engineering, and advanced manufacturing. Whether you're a life sciences startup in Portland or a precision manufacturer in Bangor, chances are you're doing some level of research and development (R&D). What many companies don’t realize is that these activities may qualify them for the research tax credit Maine offers through both federal and state programs.


These credits can lead to substantial tax savings, freeing up capital that can be reinvested in future innovation, expansion, or hiring. If your company is creating, improving, or experimenting—this guide is for you.


What Is the Research Tax Credit?

The Research and Development (R&D) Tax Credit is a government incentive that allows businesses to receive a dollar-for-dollar reduction in tax liability based on qualified research expenses. While the federal credit has been in place since 1981, many states—including Maine—now offer state-level R&D incentives as well.


For companies operating in Maine, this means you may be eligible for both state and federal research tax credits, significantly amplifying the benefit.


Understanding the Research Tax Credit in Maine

Maine offers its own Research Expense Tax Credit (Title 36, §5219-K), which mirrors many of the federal credit’s requirements. The credit is available to companies that:

  • Incur qualifying research expenses in Maine
  • Increase their R&D spending over a base amount
  • Conduct R&D related to new or improved products, processes, software, or techniques


The Maine credit is equal to:

  • 5% of the excess qualified research expenses over a base amount
  • 7.5% of basic research payments to qualifying educational institutions (if applicable)


Additionally, Maine also offers the Super Credit for Substantially Increased Research, which rewards companies that significantly increase R&D spending over prior years. Although the Super Credit is harder to qualify for, it can provide a powerful boost for companies making aggressive R&D investments.


Who Qualifies for the Research Tax Credit in Maine?

Many businesses in Maine qualify without realizing it. The industries most often eligible include:

  • Life sciences and biotech
  • Aquaculture and marine innovation
  • Renewable energy and cleantech
  • Software and IT development
  • Manufacturing and engineering



To qualify, your activities must pass the IRS-defined four-part test:

  1. Permitted Purpose – The goal is to create or improve a product, process, or software.
  2. Eliminate Uncertainty – The work must aim to resolve unknowns around design, capability, or methodology.
  3. Process of Experimentation – Involves testing, modeling, simulating, or evaluating alternatives.
  4. Technological in Nature – Based on engineering, computer science, biology, chemistry, or physics.


Even seemingly routine work—such as customizing internal software, developing new food packaging, or automating a production line—may qualify.


What Expenses Are Eligible?

Both the federal and Maine research tax credit allow you to include Qualified Research Expenses (QREs) such as:

  • Wages for technical staff, scientists, or engineers involved in R&D


  • Supplies used during development and testing phases


  • Contract research costs, including consultants (partial credit)


  • Cloud computing or leased computers used for development


All expenses must be U.S.-based and appropriately documented.


Benefits for Startups and Small Businesses

Even companies that aren’t yet profitable can benefit. The federal Payroll Tax Offset allows qualified small businesses to apply up to $500,000 of their R&D credit against their payroll taxes each year. This is a major advantage for startups in growth mode.


Although Maine does not currently offer a refundable or payroll-offset version of its state credit, the state credit can be carried forward for up to 15 years, making it valuable for long-term planning.


How to Claim the Research Tax Credit in Maine

To successfully claim the research tax credit Maine provides, companies must:

  • Identify and document qualifying projects
  • Track and categorize eligible expenses
  • Complete IRS Form 6765 for the federal credit
  • File the appropriate Maine tax forms (usually included with the state corporate tax return)
  • Maintain thorough records for future audits

Since the process involves both technical and tax expertise, many companies choose to work with professional R&D tax consultants.


Work with the Experts: Swanson Reed

Swanson Reed is a global R&D tax advisory firm with deep experience helping Maine businesses capture the full value of their eligible R&D activities. Whether you’re claiming the federal credit, the Maine state credit, or both, Swanson Reed can:

  • Evaluate your eligibility
  • Prepare detailed technical documentation
  • Calculate and support your claim
  • Handle audit compliance and defend your position


Their specialists understand both the industry-specific nuances and the tax technicalities that go into maximizing your benefit.


Conclusion

Maine businesses are building the future—whether through sustainable fisheries, advanced composites, or breakthrough health technologies. If your company is innovating, it’s time to explore how the research tax credit Maine offers can support your efforts.


Don’t leave money on the table. Connect with Swanson Reed today to discover how your everyday innovation can turn into valuable tax savings.