How to Start a Private Investigator or Security Guard Business in Mississippi: No State License, Local Rules Apply

If you want to start a private investigator business or a security guard company in Mississippi, the first question is usually whether you need a license. Mississippi's state licensing agencies do not appear to include a licensing board for private investigators or unarmed security guard companies, so confirm that with the Department of Public Safety. So the usual start is not a state license. It is a legal entity, a city privilege license, insurance, and a few checks with state and local offices before you take your first client. The rules that catch new owners are often local, so this guide tells you what to confirm and who to ask.

This article is informational, not legal or tax advice. Talk with a Mississippi attorney and a CPA before you sign client contracts, hire employees, or put anyone on duty with a firearm.

The short answer: no state license, several local checks

Mississippi does not issue a general statewide business license. Registering your company with the Secretary of State is a registration, not a license. The Department of Revenue sales tax permit is a tax registration, not a license either. What you will most likely need is a city privilege license. Every city, town, and village issues its own under Miss. Code 27-17, and the city clerk can tell you the fee for your business. Counties license only businesses located outside municipal limits, so your address matters.

Because no state board was found for these two trades, you still need to confirm the rules directly. Ask the Mississippi Department of Public Safety whether any state requirement applies to your planned services, and ask your city clerk what classification and fee apply to a private investigation or guard business. Rules can differ from one city to the next.

What you need before you start

Gather these items before you file anything:

• A business name you have checked against Secretary of State records
• A physical Mississippi street address for your registered office
• A registered agent willing to accept legal papers during business hours
• Your formation filing fee: $50 for an LLC Certificate of Formation or a corporation's Articles of Incorporation
• A list of services you plan to offer, such as surveillance, background checks, unarmed patrol, or event security, because the city clerk will ask
• Insurance quotes, including general liability, and any bonding your clients request
• A written plan for firearms, if any staff will carry on duty
• A federal Employer Identification Number from the IRS, once your entity exists

Step 1: Confirm the license question with three offices

Start with the questions, not the paperwork. Write down what you plan to do and call three offices. Ask the Department of Public Safety whether any state requirement applies to private investigation or unarmed guard services. Ask your city clerk what privilege license applies and what it costs. If your office will sit outside city limits, ask the county as well. Keep a note of the name of each person you speak with and the date of the call. If the answers conflict, get the answer in writing before you spend money.

Step 2: Choose an LLC or a corporation

Most small investigation and guard firms form an LLC. The filing fee is $50, and the LLC Annual Report (Form F0108) has no state fee. It is due April 15 each year, may be filed on or after January 1, and must be filed online. Missing it can lead to administrative dissolution.

A corporation pays a $50 filing fee for Articles of Incorporation (Form F0001), and its Corporate Annual Report (Form F0008) costs $25, due April 15 for profit corporations. Tax treatment matters here. An LLC taxed as a partnership reports income on its members' Mississippi returns and does not pay the franchise tax. An LLC taxed as a corporation, or a corporation, pays Mississippi corporate income tax and the franchise tax. For tax year 2026 the franchise tax is $0.50 per $1,000 of capital above $100,000, with a $25 minimum, and it is scheduled for repeal effective January 1, 2028. Confirm your tax treatment with a CPA before you choose.

Step 3: Pick a name and check it

An LLC name must include the words “limited liability company” or the abbreviation “L.L.C.” or “LLC” under Miss. Code 79-29-109. It may include the name of a member or manager. It must be distinguishable on the Secretary of State's records from every registered domestic or foreign entity and from any name already reserved. Search the Business Services database at corp.sos.ms.gov business search before you commit.

Avoid words that suggest a credential you do not hold, such as “licensed” or “certified,” unless you can document it. If you need time to decide, you can reserve the name for 180 days for $25 under the Secretary of State's name reservation process.

Step 4: Name a registered agent

Every Mississippi LLC must keep a registered office with a physical Mississippi street address and a registered agent for legal papers under Miss. Code 79-29-113. The agent can be an individual Mississippi resident, or a business entity authorized to operate in the state. You can act as your own agent if you meet those rules and keep your office open during business hours.

A commercial registered agent must file a listing statement with the Secretary of State for $100 and appears on the state website. It must accept or decline the appointment within 14 days. A noncommercial agent does not register with the state, but you must have the agent's permission before you list them. Using a commercial agent costs more but reduces the risk that a missed delivery goes unnoticed. Compare prices, and remember that the service fee is separate from the state fee.

Step 5: File the formation document online

File the Certificate of Formation (Form F0100) through the Secretary of State online filing portal. Online filings paid for at submission are normally approved and filed immediately. Filings that need staff review are usually returned within 24 hours. The Secretary of State's fee schedule lists no expedite fee for formation filings, so you cannot buy a faster tier. Keep the filed copy, because your bank, insurer, and city clerk will ask for it.

Step 6: Get your city privilege license

Take your filed entity documents to your city clerk and ask for the privilege license application. Under Miss. Code 27-17 the city issues the license and sets the renewal schedule, so ask for the fee and the renewal date when you apply. Ask whether the city requires an inspection, a background check on owners, or separate forms for armed staff. Ask whether the license covers each service line you plan to sell. If you will work across city lines, ask whether another city requires its own license. Do not assume that a license from one city covers work in another.

Step 7: Register for taxes you may owe

Mississippi's state sales tax rate is 7%, and the Department of Revenue issues the sales tax permit. The permit has no fee, but a bond may be required for applicants with no permanent Mississippi location. Whether your services are taxable is a question for the Department of Revenue and your CPA, not a settled rule you can assume. If you sell merchandise such as equipment, a permit is likely needed. Register at the Department of Revenue sales and use tax registration page. Mississippi has no state minimum wage law. Federal minimum wage rules apply to your guards and investigators, and wage and hour rules can be strict for overtime. Confirm your payroll setup with a CPA before you hire.

Step 8: Handle firearms before you hire an armed guard

An unarmed guard company has a simpler start. An armed guard or armed investigator is governed by Mississippi's firearm carry permit rules, and carrying on duty is not the same as carrying in your personal life. Do not assume that your own carry permit covers staff on the job. Call the Department of Public Safety Firearms Permit Unit and ask exactly what an armed guard needs, including whether each employee needs a permit and what your company must document. Build that answer into your hiring checklist before you advertise armed positions.

Step 9: Buy insurance and check bonding

No state rule found sets the coverage amounts for these businesses, but clients usually require general liability insurance, and many also require a surety bond. Get quotes before you sign your first contract. Ask the agent what happens if an employee is injured on the job, which determines whether you need workers' compensation coverage and how it is written. Ask whether professional liability coverage fits your investigation work. Keep certificates of insurance on file, and send them to clients when they ask. Confirm each requirement with your insurance agent and your city clerk, because local rules and client contracts may set higher numbers than the minimums you hear about.

Step 10: Set up records, banking, and a compliance calendar

Open a bank account in the entity's name, using the EIN and formation documents. If you plan to operate under a different name, such as “Delta Investigations” for a company named after its owner, you must file a fictitious (assumed) business name registration with the Secretary of State, not the county. Form F0070 costs $25. Use the same name on your contracts, invoices, and vehicles. Set calendar reminders for April 15 (annual report), your city privilege license renewal date, your registered agent's annual status, and your insurance renewal. Keep a file of every filing, receipt, and license copy.

Common mistakes to avoid

• Assuming there is no license at all. No state board was found, but your city, your clients, and your firearm plans may still require something.
• Filing a DBA with the county. Assumed names go to the Secretary of State.
• Treating the Secretary of State filing as a license. It registers your entity. It does not authorize you to operate.
• Letting the registered agent lapse. A missed delivery can lead to a default judgment.
• Forgetting the April 15 annual report. A missed report can end in administrative dissolution.
• Arming staff before checking the firearm rules. Ask DPS first.
• Signing client contracts without insurance. Many clients will not accept a company with no certificate.
• Relying on one city's answer for another city. Verify with each clerk.

What to expect after you file

Once your entity is on record and your city privilege license is issued, you may be able to begin marketing and taking clients, as long as your insurance is in place and your firearm plan is settled. Many new owners spend the first few weeks on the setup steps above, so plan for that period rather than promising clients a start date. Early results often depend on your local market, your referral network, and how quickly you can meet client insurance requirements. Treat the first year as a learning period: track your costs, your renewals, and any questions the city or the state asks, and update your compliance calendar as you grow.

Next steps and a note on professional advice

Start with the three phone calls in Step 1, then file your entity, then ask your city clerk for the privilege license application. The Mississippi Small Business Development Center Network can help you with planning at no cost, and you can find its 19 locations through the Mississippi SBDC site. Complex situations, such as armed operations, multi-city service areas, employee-heavy staffing, or a corporation with owners in several states, call for an attorney and a CPA. Confirm every figure in this guide with the agency that sets it before you rely on it, because rules and fees change.