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Every city has them: the candle maker whose September farmers-market table turns into a November waiting list, the baker whose holiday pre-orders outgrow the group chat, the vintage reseller whose October drop sells out in an hour. Fourth quarter is when side projects meet real volume, and it is also when the paperwork you skipped in the spring starts to matter. Booth applications ask for a business name. Payment processors ask for a tax ID. A wholesale buyer asks who, legally, they are ordering from. Here is the get-legit checklist, in the order that actually works, with enough time left before the season to finish it.
Step one: give the business a legal body
You can trade under your own name as a sole proprietor, and for a first market weekend that is fine. The upgrade most sellers make once money gets serious is an LLC for side hustle work: a simple company that signs the booth agreements, holds the bank account, and stands between your personal savings and anything that goes wrong with a product or an order. It also gives you a real business name for applications and invoices, which organizers and wholesale buyers quietly read as a mark of someone who will show up. Forming one is a state filing plus a registered agent, handled directly or through a company formation service in a week or so. One aside for the global reader: US company ownership has no residency requirement, which is why plenty of the online shops shipping into American holiday demand are run by founders far outside the US.
Step two: the tax ID that unlocks everything else
The EIN, the federal Employer Identification Number, is the business equivalent of a Social Security Number, and it is what banks, payment processors, and marketplace onboarding forms want to see. It is free directly from the IRS, and for most US applicants the online form takes minutes. Do this immediately after the company exists, because everything in step three sits behind it.
Step three: money rails before the rush, not during it
Open the business bank account and set up your card reader or online checkout in October, not the week of your first big market. Payment platforms verify new business accounts, verification sometimes wants documents, and December is the worst possible month to have a payout frozen pending review. A separate business account also spares you the January ritual of untangling twelve weeks of mixed personal and business spending, which is the least festive activity known to sellers.
Do I need a business license for a side hustle?
Often yes, and this is the step that varies most by city. The LLC creates the company; it does not by itself authorize selling things in a particular place. Depending on your city and product, you may need a general business license, a temporary vendor or special-event permit for each market, a food handler’s certificate or cottage-food registration for edible goods, and a sales tax registration with your state so you can collect and remit tax on what you sell. Market organizers usually list exactly what they require in the vendor application, and the city clerk’s website covers the rest. Budget a couple of weeks for the slowest permit, not a couple of days.
Step five: the small print that saves the season
Two quick wins while the filings process. First, insurance: many organizers require a certificate of liability before you can set up a table, and one-day event policies exist for exactly this. Second, keep the paper trail from day one: photograph receipts, log market fees, and note mileage. Q4 income has a way of being remembered by everyone at tax time, and sellers with records get to keep more of what the season brings.
The season rewards the ready
None of this is glamorous, and all of it is doable in a few evenings between now and the first weekend market of the season. The sellers who do it early spend December selling. The ones who do not spend December on hold with a payment processor, explaining that yes, the business is real, it just does not exist on paper yet. Whatever you make, bake, or curate, get the boring part finished while the leaves are still on the trees. Your future self, somewhere in the December rush, will be grateful.