How to Start a Tree Service Business in Maryland: DNR Licensed Tree Expert

If you plan to trim, prune, cable or remove trees for pay in Maryland, you need a Licensed Tree Expert license from the Department of Natural Resources (DNR). Many new owners assume that removal-only work is exempt. It is not. Natural Resources Article 5-415 defines a tree expert as a person who, for compensation, treats, cares for or removes trees, and Section 5-417 says you may not engage in the work or business of a tree expert without a DNR license.

Search results often call this a Maryland arborist license or a Maryland tree service license. The term DNR uses, and the term in the statute, is Licensed Tree Expert. Use that term on your application and in your filings.

This article walks through the steps in the order most owners need them: confirm the scope of the license, confirm you qualify, plan your crew, pass the exam, insure the business, form the entity, and register with the right state and county offices.

Disclaimer: This is informational content, not legal or tax advice. State fees and rules change. Confirm current requirements with the Maryland Forest Service, the State Department of Assessments and Taxation (SDAT) and the Comptroller of Maryland, and speak with a qualified attorney or CPA before you sign contracts, hire crew or choose an entity.

What You Need Before You Start

Gather these items before you file anything:

• Proof of qualifying education or experience: transcripts for approved college coursework, or letters from the licensed tree expert you worked under that document dates and duties
• Proof that you are at least 18 years old
• A fee budget for the DNR process: $30 for the license, $20 per domain for an exam retake, and $20 for renewal, based on DNR's November 2024 application
• A liability and property damage insurance policy, with a certificate showing the form and amount DNR requires
• Workers' compensation coverage for any company working under your license, which you must report to DNR
• A business name that you have checked in the SDAT business entity search
• A Maryland resident agent with a Maryland street address (no P.O. box)
• A formation budget: $100 for Articles of Organization if you form an LLC, or $120 for Articles of Incorporation if you form a corporation
• A calendar reminder for the $300 annual report, due April 15 each year

Step 1: Know What the License Covers

Maryland treats a wide range of tree work as licensed work. Under Section 5-415, the covered activities include treating, caring for and removing trees, along with trimming, pruning, cabling, shaping, and removing or reducing crowns. Removal is included. If your business only takes trees down, you still need the license.

Section 5-415(c)(2) lists narrow exclusions:

• Commercial logging or timber harvesting
• Installation of underground facilities and the site construction associated with that work
• Work on a tree 20 feet tall or less

Treat these exclusions as limits to check, not as a business model. The 20-foot exclusion does not clearly cover every small job you might bid. Confirm with DNR how it applies before you rely on it for pricing or scheduling.

Also note that Maryland Home Improvement Commission (MHIC) licensing does not apply to tree work. An MHIC license does not replace the DNR license.

Step 2: Confirm You Qualify

Section 5-418 sets the qualification paths. You must be at least 18 years old and meet one of these requirements:

• Two years of approved college education plus one year of experience with a licensed tree expert
• Three years of continuous practice with a licensed tree expert

Either path also requires you to pass the DNR exam. Start collecting documentation now. A vague employer letter can slow your application, so ask the licensed expert you worked under to write down exact start and end dates and the specific kinds of work you performed, including climbing, rigging, removals and pruning.

Step 3: Plan How Your Crew Fits Under the License

Section 5-417(a)(2) says an employee working under the supervision of a licensed tree expert does not need an individual license. This is the structure most owners rely on when they build a crew, so the supervision arrangement needs to be real and documented, not just a title on a business card.

Section 5-417(b) adds two reporting duties. Licensed experts must report the companies working under their license, and they must report the liability, property damage and workers' compensation coverage for those companies. Decide early who holds the license, whether you will hold it yourself or hire a licensed expert, and how supervision will work on job sites. If a partner is involved, put the arrangement in writing and have an attorney review it.

Step 4: Pass the Exam and Apply to DNR

Apply through DNR's Licensed Tree Expert process and pay the fees listed on the current application. DNR's November 2024 application lists these amounts:

• License fee: $30
• Exam retake: $20 per domain
• Renewal: $20

The statute sets maximum amounts of $45 for the exam, $55 for the initial license and $100 for renewal (Section 5-419(c)). Confirm the current exam fee on the application itself before you send money, because the amount you need to pay can differ from the statutory ceiling.

The November 2024 application describes a license that is good for two calendar years and renewed every two years. Older DNR documents describe annual renewal. Confirm the renewal window with the Maryland Forest Service before you put it on your calendar. The exam is organized by domain, so if you need to retake part of it, you pay the $20 retake fee for each domain. Study your weakest area first.

Step 5: Buy Insurance Before You Bid

Every licensee must carry and show proof of liability and property damage insurance in the form and amount DNR requires. Get the current requirement from DNR in writing, then ask your insurance agent to build the policy to that standard. Do not estimate a coverage limit and hope it passes.

Ask the agent whether the policy covers the specific equipment and operations you plan to run, such as climbing, rigging, chipping and crane work. Keep the certificate in your files and ready to send to customers and to DNR.

Step 6: Form the Business Entity

Most owners form an LLC, but the choice has tax consequences, so compare the options with a CPA. The filing facts are:

• LLC: Articles of Organization filed with SDAT, $100 filing fee
• Corporation: Articles of Incorporation filed with SDAT, $120 filing fee
• Annual report: $300 Annual Report and Business Personal Property Return (Form 1), due April 15 each year. Extension requests are filed at pprextensions.dat.maryland.gov.

The LLC name must include Limited Liability Company, L.L.C., LLC, L.C. or L C. It must not be misleadingly similar to another LLC, corporation, trade name, limited partnership or limited liability partnership on file with SDAT. Search the SDAT entity database before you file, and reserve the name for $25 if you need time. A name reservation lasts 30 days.

Your resident agent must be a Maryland citizen over 18, a Maryland corporation or a Maryland LLC, with a Maryland street address. The resident agent must sign the Articles of Organization, and you must have the agent's consent before you file. Changing the resident agent or the agent's address costs $25 per entity.

Processing times depend on how you file:

• Standard: non-expedited LLC filings are reviewed during the second calendar month after submission. Paper filings take about 8 weeks. For example, a filing submitted in March would normally be reviewed during May.
• Expedited: an extra $50, with review in 7 to 14 business days
• Online rush: an extra $325, with review within 3 hours if you submit by 2:30 p.m. on a business day
• Same-day paper drop box: an extra $425

On taxes, Maryland imposes no separate franchise tax on ordinary LLCs. An LLC is a pass-through entity for state income tax, so members report income on their Maryland personal returns at 2% to 6.5% for the state, plus a county rate of 2.25% to 3.30% for 2026. A corporation pays a flat 8.25% corporate income tax on Maryland taxable income. Confirm how these apply to your situation with a CPA.

File online through Maryland Business Express at https://egov.maryland.gov/businessexpress. Check names at https://egov.maryland.gov/businessexpress/entitysearch and review SDAT's business pages at https://dat.maryland.gov/businesses/Pages/default.aspx.

Step 7: Register a Trade Name If You Use Another Name

If you will operate under a name other than your LLC or corporation name, register a trade name. The fee is $25 for standard processing, or $75 total with the $50 expedited fee. The filing goes to SDAT, not to the county. The form is at https://dat.maryland.gov/SDAT%20Forms/nameappl.pdf.

Step 8: Check County Permits and Local Rules

Some counties may require a tree-removal or forest conservation permit for certain jobs. We have not verified which counties apply these requirements or the thresholds that trigger them, so confirm with the planning or permitting office in every county where you plan to work. A DNR license does not answer this question for you.

Step 9: Register for Taxes and Any Local Trader's License

Maryland has no single general state business license. A tree service that only performs services may not need a sales tax registration, but if you sell goods such as firewood, mulch or wood products, ask the Comptroller of Maryland whether you need a Sales and Use Tax License. The Comptroller issues it through the Combined Registration Application, found at https://businessexpress.maryland.gov/start/taxes-and-insurance. The state sales tax rate is 6%.

Most businesses that sell goods need a trader's license from the Clerk of the Circuit Court in their county. The license year runs May 1 through April 30. Growers and manufacturers are exempt. The Clerk cannot issue a trader's license to an applicant who owes personal property tax or has missing SDAT filings, so keep your annual report current before you apply. Confirm with the Clerk whether a trader's license applies to your services.

Common Mistakes to Avoid

• Assuming removal-only work is exempt. Removal is licensed work under Section 5-415. The statute bars the work or business of a tree expert without a DNR license, so do not bid removals while you wait for approval.
• Treating the 20-foot exclusion as a blanket rule. Confirm with DNR how the exclusion applies before you bid small jobs.
• Running crews without real supervision. The employee exemption in Section 5-417(a)(2) depends on supervision by a licensed tree expert.
• Waiting to buy insurance. You need liability and property damage coverage to hold the license, and customers will ask for proof on the first call.
• Using MHIC as a stand-in. MHIC licensing does not apply to tree work.
• Forming the entity before checking the name. Search SDAT first so you do not pay the $100 filing fee for a name the rules will not accept.
• Missing the April 15 annual report. Missing SDAT filings can block a trader's license, and the $300 fee is due every year.
• Advertising a license you do not yet hold. Wait until DNR issues your license before you list a license number in your marketing, on your trucks or in bids.

Practical Tips

• Start the DNR file while the entity is being formed. The two processes run on different timelines, and the license is the step that controls when you can bid.
• Use expedited filing only when timing matters. The $50 expedited fee shortens review to 7 to 14 business days, but it does not guarantee a start date for your work.
• Keep a binder or digital folder with the DNR license, insurance certificate, Articles of Organization, resident agent consent, annual report and any trade name registration.
• Calendar three dates: the April 15 annual report, the DNR renewal window once you confirm it with the Maryland Forest Service, and the trader's license year of May 1 through April 30, if you need one.
• Ask a CPA to compare the LLC and corporate tax treatment using the figures above before you choose.

What to Expect Once You Are Set Up

Once your license, insurance and business registrations are in place, you may be able to bid on residential and commercial tree jobs where buyers want a licensed and insured company. Results depend on your local market, pricing, reputation and the work you can schedule, and no filing or license guarantees customers or revenue.

Many owners find that presenting the license number and insurance certificate early in the sales conversation can answer a common question before the bid is written. Plan for a filing timeline measured in weeks. A standard LLC filing submitted in one month may not be reviewed until the second calendar month after that, so schedule your launch around the review date rather than the date you mailed or uploaded the paperwork.

Keep your DNR license, insurance and SDAT filings current from the first day. A short check each January is much cheaper than a lapse that interrupts work you have already booked.