Starting a business in Idaho: one of the easy ones
Where are you selling? In Idaho that question decides more than what you are selling does. Charge 6% and you are right at almost every address in the state — but in Ketchum, Sun Valley, McCall and a short list of other resort cities the town levies its own tax on top, sets its own rate, decides for itself what the rate covers, and takes the registration and the return itself. The State Tax Commission does not publish a single rate for those places. It publishes a phone number for each of them.
Idaho has no city income tax, no county income tax and no general state business licence. The flat 5.3% is the only income tax return a business owner files here, most Idaho cities require no general business licence either, and the seller's permit costs nothing. There is genuinely very little machinery.
Which is why the geography carries so much weight. In Washington the base rate is a starting point that every address adds to; in California a block can change the answer. In Idaho 6% is the answer nearly everywhere, and the exceptions are named towns rather than a boundary map — so you can hold the whole exception list in your head.
- Sales tax
- 6% state + Resort cities and the two auditorium districts add their own; rates and coverage differ city by city local · typically 6% almost everywhere in Idaho — the exceptions are the resort towns
- Local income tax
- None
- State business licence
- Not required statewide
- Workers' comp from
- 1 employee — full-time, part-time, seasonal or occasional
- Formation approved in
- Filed on SOSBiz with the Secretary of State. Idaho publishes no guaranteed standard turnaround for online business filings.
- First 90 days, all in
- $200–$900 · $100 of it to the state
Official portals: Idaho Secretary of State — Business Entities · Idaho State Tax Commission — Regular seller's permit · Business.Idaho.gov — licences, permits and employer requirements. Figures checked September 2026; the portal always wins.
Most services are not taxable here either, so a consultancy, a design studio or a bookkeeping practice often collects nothing and holds no permit. If the company itself is not formed yet, the hub page has the six steps and every state's fees; from here on this is about trading, not filing.
In a resort city, the town is the tax authority
A small set of Idaho cities may levy a local option sales tax on top of the state's 6%, and so may the two auditorium districts. Plenty of states allow something similar. What is unusual is how little of it is standardised, and the tell is in the Commission's own publishing: its page on city sales taxes gives a separate contact for each city rather than a statewide maximum rate, because the city is who you deal with.
- The rate is the city's
- Each resort city sets its own. There is no statewide ceiling published to check yours against, and a national sales-tax table is not a reliable source for these addresses.
- The base is the city's too
- Some cover everything the state taxes. Others reach only lodging, restaurant food and alcohol by the drink. Two towns at the same rate can tax quite different things.
- You register with the city
- Not with the Tax Commission. It is a second registration that no state portal will prompt you about, because no state portal knows about it.
- And you file with the city
- A second return, on the city's calendar. Ketchum, Sun Valley and McCall are the names people know; the Commission's list is the one to check against your own.
Cover in place before the first shift, not within thirty days
Workers' compensation is required from the first employee — full time, part time, seasonal or occasional — and the timing is the part to read twice. The policy must exist before that person starts work. There is no grace period of the kind Alabama and Tennessee allow, and no version of this where the paperwork catches up during week one.
Buying it is easy. Private carriers write the policy and the Idaho State Insurance Fund competes with them rather than replacing them, so the market is open and your payroll provider's carrier can usually do it. A few categories sit outside the requirement — corporate officers owning 10% or more, household domestic work, commission-only real estate agents among them — but they are named exceptions to check yourself against, not a general small-business let-off.
What makes it worth a section in a state this quiet is the penalty schedule, which is not proportionate to how simple compliance is:
| Consequence | Detail |
|---|---|
| Personal liability for the benefits | You pay what the insurer would have paid, out of your own money — the single largest exposure on this list. |
| 10% penalty | Added on top of the benefits owed. |
| $2–$25 per day, per employee | Running daily for the period you were uninsured. |
| A misdemeanour | Non-compliance is a criminal matter, not only a civil one. |
Unemployment insurance is a separate registration with the Idaho Department of Labor, and its trigger is the conventional one: $1,500 or more in wages in a calendar quarter of the current or preceding year, or one or more people working in 20 different weeks of a calendar year.
The report costs nothing, which is exactly the problem
Idaho's annual report is free. The Secretary of State charges $0, it is due by the end of your anniversary month, and it takes a few minutes on SOSBiz. No other state on this site asks less.
It is also the obligation Idaho businesses most often miss, and the reason is the fee. Nothing is charged, so nothing is invoiced, so nothing arrives to prompt you — and an LLC that stops filing is administratively dissolved. Putting that right afterwards costs money the report never did.
So the useful thirty seconds is on formation day: a repeating calendar entry on the first of your anniversary month reading “Idaho annual report — SOSBiz — free”. Idaho publishes no guaranteed turnaround for online filings and does not need to; nothing about this is the slow part.
Common questions
Is 6% the rate everywhere in Idaho?
Almost. 6% is the state rate and it is what you charge at nearly every address, with no county or district layer. The exceptions are the resort cities and the two auditorium districts, which levy their own local option taxes on top — each setting its own rate and its own list of what is covered. Most services are not taxable in Idaho, so many service businesses collect nothing anywhere.
Who do I register with in a resort city?
The city itself, not the State Tax Commission. Resort cities including Ketchum, Sun Valley and McCall levy their own sales tax, take their own registration and receive their own return. The Commission's city sales tax page publishes a separate contact for each city rather than a single statewide rate, because the city is the authority on both the rate and what it covers.
How soon does workers' compensation have to be in place?
Before the employee starts work — not within a number of days afterwards. It is required from the first employee, whether full time, part time, seasonal or occasional. Private carriers write the policy and the Idaho State Insurance Fund competes with them, so Idaho is not monopolistic. Corporate officers owning 10% or more, household domestic workers and commission-only real estate agents are among the exemptions.
What happens if I employ someone in Idaho without cover?
You become personally liable for the benefits the insurer would have paid, plus a 10% penalty, plus $2 to $25 per day per employee for the uninsured period, and the non-compliance is a misdemeanour. It is the most expensive avoidable mistake in the state, and the compliance it replaces is a phone call to a broker.
If the Idaho annual report is free, what happens when I miss it?
Administrative dissolution. The Secretary of State charges $0 for the report and it is due by the end of your anniversary month each year, but the absence of a fee is not the absence of a deadline — and because no invoice ever arrives, nothing prompts you. Reinstating a dissolved LLC costs money the report never did.
Know which towns change the answer.
Tell Velofound what you sell and where, and it flags the resort-city question against your own addresses, dates the free report to your anniversary month, and puts both beside a website that is live and taking card payments. Free to start.
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