Running a vendor market in Gaithersburg.
In Gaithersburg, organizers of outdoor markets that affect streets, sidewalks or public land need a Special Event Permit from the City's Parks, Recreation & Culture department, filed two to three months ahead. Food vendors need a Montgomery County special food event license, and vendors need a Maryland trader's license and sales tax registration.
Updated
Event permit.
Special Event Permit
The organizer applies online with a detailed site plan showing tents, generators, food areas, closures and similar elements; the City emails payment instructions after submission. Related permits may apply for tents of 12 by 12 feet or larger, generators, live animals and traffic support, plus Montgomery County food and alcohol licenses. Review takes at least four weeks and complex events can take months.
- Who
- Organizer
- From
- City of Gaithersburg Department of Parks, Recreation & Culture
- When
- Planned outdoor events inviting public participation that affect public streets, sidewalks, public lands, facilities or neighboring private property; the City names farmers markets and food fairs among examples. Events for residents of a single block, under 200 people, with no food or alcohol sales, can use the simpler Neighborhood Event application.
- Timing
- Several months ahead: 3 months for events of 1,000 or more people, events with fireworks, food or alcohol, inflatables, live animals or generators, and street closures; 2 months for events of 999 or fewer
Vendor and business licenses.
Trader's License (or Exhibitor's Affidavit)
The Comptroller's license bureau says a trader's license from the Clerk of the Circuit Court is required, along with a sales tax account, and the license year runs May 1 to April 30. A copy of the license or affidavit must be shown to the promoter before the show and displayed during it. Fees are not listed on this page.
- Who
- Vendors
- From
- Montgomery County, Clerk of the Circuit Court (statewide rules enforced by the Comptroller's License Bureau)
- When
- Anyone selling goods in Maryland other than a grower or manufacturer. Exhibitors at a show do not need their own trader's license when the show is promoted by an exempt entity the Comptroller lists (for example a church, government agency or volunteer fire department), or when they give the promoter an Exhibitor's Affidavit saying they get under 10 percent of annual income from like goods at the show. Either way they must not have done more than three shows in the previous 365 days.
Transient Vendor License (roadside or temporary sales)
The Comptroller issues this license free of charge for 90 days, but the seller must first hold a Maryland sales and use tax license and a business license for the county where they will operate. Selling without it can bring a stop-sale order or criminal citation.
- Who
- Vendors
- From
- Comptroller of Maryland
- When
- Sellers who make taxable sales from a vehicle or from a roadside or temporary location they do not own. The Comptroller says it does not apply to exhibitors at fairs, trade shows and flea markets.
- Fee
- Free; valid for 90 days
Sales tax.
Temporary Sales and Use Tax License (30 days)
A vendor emails the event date, name and location plus business details to the Comptroller's temporary license desk (or calls 410-767-1543 or 410-767-5462) and collects the 6 percent or 9 percent Maryland sales and use tax, as the Comptroller states. Vendors at three or more events a year should register for a permanent license through Maryland Tax Connect.
- Who
- Vendors
- From
- Comptroller of Maryland
- When
- Vendors without a permanent Maryland sales and use tax license who sell at one-time events such as craft shows and fairs. Maryland has one statewide rate and no local sales taxes.
- Timing
- Temporary license is valid for 30 days
Flea market and show sales are taxable
The Comptroller says sales at flea markets are subject to the 6 percent sales and use tax like other retail sales, and a seller must hold a license before collecting it. A 30-day permit is available by phone from the Special Events Section at 410-767-1543 or 410-767-1531; frequent sellers should get a permanent license through the Combined Registration Application.
- Who
- Vendors
- From
- Comptroller of Maryland
- When
- Vendors at flea markets and similar markets, including nonprofits and private individuals (casual and isolated sales under $1,000 and a few other sales are exempt).
Food vendors.
Montgomery County Special Food Event License
Apply through the CivicGov portal or by mailing or faxing the PDF form, with a menu and site diagram (plus an IRS letter for nonprofits). The county says it responds within 10 to 14 business days, then an inspector is assigned, and licenses cannot be transferred between people or locations.
- Who
- Organizer and vendors
- From
- Montgomery County Department of Health and Human Services, Licensure & Regulatory Services
- When
- Anyone selling or giving away food or drink at a temporary event of up to 30 consecutive days at a fixed location. The only exception named is fresh produce or live crustaceans. Gaithersburg's own pages could not be read, so confirm that no extra City food rule applies.
- Timing
- Submit at least three working days before the event; allow 10 to 14 business days for approval
Special food event license fees
The county fee schedule prices temporary event licenses by food type and nonprofit status, with a late fee for last-minute filings. The schedule page shows no effective date.
- Who
- Vendors
- From
- Montgomery County Department of Health and Human Services
- When
- Food vendors at special events, by license type.
- Fee
- For-profit, potentially hazardous or open food: $70 per license at an event; pre-packaged non-hazardous food: $40 first license, $35 each additional; non-profit: $30 hazardous or $15 non-hazardous; late fee $30
What the rules ask of organizers about vendors.
A show promoter may not let an exhibitor take part unless the exhibitor has given a photocopy of a valid Trader's License or an Exhibitor's Affidavit before the show. Exhibitors must display it, and the promoter must forward all Exhibitor Affidavits to the Comptroller's State License Bureau within seven days after the show. Non-compliance is a misdemeanor with a fine up to $100 or up to 30 days in jail.
When to apply.
- Montgomery County Special Food Event License: Submit at least three working days before the event; allow 10 to 14 business days for approval
- Temporary Sales and Use Tax License (30 days): Temporary license is valid for 30 days
- Special Event Permit: Several months ahead: 3 months for events of 1,000 or more people, events with fireworks, food or alcohol, inflatables, live animals or generators, and street closures; 2 months for events of 999 or fewer
Collect the paperwork with each application.
Ask vendors for their sales tax registration, business license, food permit and insurance certificate as required documents on your application form, so you can check them before you approve anyone. Booth fees, tickets and day-of check-in run from the same dashboard.
Selling at markets in Gaithersburg, MD?
The vendor license, sales tax and food permits above are yours to get before the event; the organizer will usually ask for copies with your application. On bzar you apply to markets and pay booth fees by card in one place, and keep your licenses, permits and insurance certificates on file to reuse on every application. Free for vendors. Join bzar free or read how to become a market vendor.
Where the sources are unclear.
- Maryland rules on sales tax, trader's licenses and promoter duties come from the Comptroller of Maryland and apply statewide. The promoter rules are written for shows and exhibitors; confirm with the Comptroller's License Bureau that your vendor market counts as a show.
- The two Comptroller sales-tax guidance pages (KB0010107 and KB0010150) load their text only in a browser, so an automated fetch returns an empty shell. Their text was read in a browser on 2026-10-10.
- The Montgomery County DPS municipalities page lists Gaithersburg as 'City Permit Only' for building permits, so City rather than County rules apply to structures (https://www.montgomerycountymd.gov/department-permitting-services/homeowners/municipalities-page). It does not address special events.
- Gaithersburg's special event page does not state a permit fee amount, and the City's FY 2027 fee schedule PDF read on 2026-10-10 lists no special event permit fee; ask the Special Event Permits office at 301-258-6350. The City's licensing list includes a Mobile Food Vendor License and Solicitor License, whose forms were not read, so whether they apply to vendors inside a permitted market is unconfirmed.
Common questions.
Do I need a permit to host a vendor market in Gaithersburg?
Special Event Permit (City of Gaithersburg Department of Parks, Recreation & Culture): The organizer applies online with a detailed site plan showing tents, generators, food areas, closures and similar elements; the City emails payment instructions after submission. Related permits may apply for tents of 12 by 12 feet or larger, generators, live animals and traffic support, plus Montgomery County food and alcohol licenses. Review takes at least four weeks and complex events can take months.
Do vendors need a license to sell at events in Gaithersburg?
Trader's License (or Exhibitor's Affidavit) (Montgomery County, Clerk of the Circuit Court (statewide rules enforced by the Comptroller's License Bureau)): The Comptroller's license bureau says a trader's license from the Clerk of the Circuit Court is required, along with a sales tax account, and the license year runs May 1 to April 30. A copy of the license or affidavit must be shown to the promoter before the show and displayed during it. Fees are not listed on this page. Transient Vendor License (roadside or temporary sales) (Comptroller of Maryland): The Comptroller issues this license free of charge for 90 days, but the seller must first hold a Maryland sales and use tax license and a business license for the county where they will operate. Selling without it can bring a stop-sale order or criminal citation.
Who handles sales tax at a market in Gaithersburg?
Temporary Sales and Use Tax License (30 days) (Comptroller of Maryland): A vendor emails the event date, name and location plus business details to the Comptroller's temporary license desk (or calls 410-767-1543 or 410-767-5462) and collects the 6 percent or 9 percent Maryland sales and use tax, as the Comptroller states. Vendors at three or more events a year should register for a permanent license through Maryland Tax Connect. Flea market and show sales are taxable (Comptroller of Maryland): The Comptroller says sales at flea markets are subject to the 6 percent sales and use tax like other retail sales, and a seller must hold a license before collecting it. A 30-day permit is available by phone from the Special Events Section at 410-767-1543 or 410-767-1531; frequent sellers should get a permanent license through the Combined Registration Application. For organizers: A show promoter may not let an exhibitor take part unless the exhibitor has given a photocopy of a valid Trader's License or an Exhibitor's Affidavit before the show. Exhibitors must display it, and the promoter must forward all Exhibitor Affidavits to the Comptroller's State License Bureau within seven days after the show. Non-compliance is a misdemeanor with a fine up to $100 or up to 30 days in jail.
Do food vendors need a separate permit in Gaithersburg?
Montgomery County Special Food Event License (Montgomery County Department of Health and Human Services, Licensure & Regulatory Services): Apply through the CivicGov portal or by mailing or faxing the PDF form, with a menu and site diagram (plus an IRS letter for nonprofits). The county says it responds within 10 to 14 business days, then an inspector is assigned, and licenses cannot be transferred between people or locations. Special food event license fees (Montgomery County Department of Health and Human Services): The county fee schedule prices temporary event licenses by food type and nonprofit status, with a late fee for last-minute filings. The schedule page shows no effective date.
How far ahead should I apply in Gaithersburg?
Montgomery County Special Food Event License: Submit at least three working days before the event; allow 10 to 14 business days for approval Temporary Sales and Use Tax License (30 days): Temporary license is valid for 30 days Special Event Permit: Several months ahead: 3 months for events of 1,000 or more people, events with fireworks, food or alcohol, inflatables, live animals or generators, and street closures; 2 months for events of 999 or fewer
Keep reading.
Sources.
This page summarizes official government sources and isn't legal or tax advice. Rules, fees and forms change; confirm with each agency before you apply.
Special events contact: Gaithersburg Special Event Permits 301-258-6350, specialeventpermits@gaithersburgmd.gov
Every fact on this page comes from these official pages, checked on 2026-10-10. Details change; tell us at hello@bzar.app if something here is out of date.
- https://www.montgomerycountymd.gov/department-health-human-services/about-us/licensure-regulatory-services/environmental-health-unit/special-food-event-license
- https://www.montgomerycountymd.gov/department-health-human-services/about-us/licensure-regulatory-services/fee-schedule
- https://www.marylandcomptroller.gov/businesses/new-business/business-licenses.html
- https://www.marylandcomptroller.gov/about/field-enforcement-bureau/procedural-manual/900/905-transient-vendors.html
- https://services.marylandcomptroller.gov/taxes?id=kb_article_view&sysparm_article=KB0010143
- https://services.marylandcomptroller.gov/taxes?id=kb_article_view&sysparm_article=KB0010107
- https://services.marylandcomptroller.gov/taxes?id=kb_article_view&sysparm_article=KB0010150
- https://www.gaithersburgmd.gov/services/permitting-inspections/general-permits/special-event-permit
- https://www.gaithersburgmd.gov/services/licensing
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