Hawaii: what your website, phones and email must follow

Hawaii runs most of what touches a contractor's marketing through one department, Commerce and Consumer Affairs, plus the Department of Taxation. The rules that matter for a website, a phone line and an email list come from different places, so this page sorts them by what you actually do. This is general information current to October 2026, and the agencies named below have the last word.

Your license number belongs in the ad, and the ad needs a license

HRS 444-9.2 is the advertising section of Hawaii's contractor law. It does two things that reach a website. First, advertising as a contractor without a valid license for the goods and services advertised is a misdemeanor, and the section applies even to people who are exempt from licensing under HRS 444-2. Its definition of advertising covers signs, cards and markings on buildings or vehicles, newspaper and magazine ads, directory listings under a contractor heading, and broadcast commercials. A handyman who qualifies for the $1,500 exemption can still do small jobs, but the exemption does not let him call the business a contractor in a van wrap or a listing.

Second, a licensed contractor may advertise in print or broadcast media only if the ad carries the current license number, and the contractor gives the publisher proof that the number is valid. Publishers must refuse ads that do not comply, and a publisher holding a signed compliance statement gets a presumption of good faith.

The Contractors License Board's rule at Hawaii Administrative Rules 16-77-83 extends the identification requirement to any medium. It says a contracting entity must be identified as a licensed contractor, using the name the license is held under or a trade name filed with the board, along with the license number. The rule defines media to include the Internet and directories, including yellow pages listings.

In practice that means the footer of every page, your Google Business Profile description, social profiles that advertise your services and any paid listing should show the license number and the exact licensed or filed name. Subsection (c) of 444-9.2 adds a consequence people overlook: after a final board order or court judgment finding a violation, the phone company must disconnect the number shown in the ad. For which classifications you need, see our page on Hawaii contractor licenses.

Written contracts and what an online quote can promise

HRS 444-25.5 governs contracts with homeowners. A licensed contractor doing home construction or improvements must explain the lien rights of everyone performing under the contract, explain the homeowner's option to demand bonding and its approximate cost, and put the contract in writing. The written contract must tell the homeowner about the contractor's right to resolve alleged construction defects before litigation under HRS 672E-11, must be signed by both sides, and must be executed before any work starts. A violation is an unfair or deceptive practice under chapter 480.

The board's rule at HAR 16-77-80 lists what the contract must contain:

1. The contractor's name, address, license number and classification.
2. The exact amount the homeowner owes.
3. The start date and the days allowed for completion.
4. A description of the work and materials.
5. The share to be subcontracted, with each subcontractor's name and license number if any.
6. A capitalized warning, beside the owner's signature line, that payments made to a sales representative could be lost.
7. A provision explaining lien rights of everyone performing under the contract.
8. Warranty terms.
9. The signatures of homeowner and contractor.

The rule excludes "service-type work" from home construction or improvements, and its example is maintenance work by electrical and plumbing contractors that needs no county permit. The rule does not say how a pressure washing or gutter job is treated, so ask the Contractors License Board before you assume your small jobs fall outside it. A remodel or an addition that needs a county permit is inside the rule. Either way, an online estimate form should say plainly that it is an estimate and that a signed contract follows. Our guide to what to put in a service contract covers the general content.

Telemarketing hours and the state chapter

Chapter 481P, Hawaii's telemarketing chapter, applies to a plan, program or campaign to induce purchases by telephone that involves more than one call. A single return call to a customer who asked for a quote is not that. A cold-calling or follow-up campaign to people who have not asked to hear from you is. The chapter has several rules that matter to a service company:

• Within the first minute of an outbound call, and before any solicitation, the caller must start disclosing the true purpose of the call, the caller's name, the company on whose behalf the call is made and the goods or services offered, and finish within three minutes (HRS 481P-2).
• Calling a number on the national Do-Not-Call registry in violation of the federal Telemarketing Sales Rule and TCPA is a violation of the Hawaii chapter as well (HRS 481P-2).
• Calling a consumer's residence outside 8:00 a.m. to 9:00 p.m. local time at the consumer's location is an abusive practice, as is calling someone who has said they do not want calls from that seller (HRS 481P-3).
• Telephone solicitors must keep records of telemarketing activity for two years, including scripts and the do-not-call list procedure (HRS 481P-4).
• A contract made through telemarketing that violates the chapter can be voided by the consumer for any reason at any time (HRS 481P-8).

The chapter's exemptions cover groups such as registered securities salespeople, banks, insurers, licensed real estate brokers and registered travel agencies. Home-service contractors are not on the list. Federal rules apply as well, and the TCPA guide covers texting consent and quiet hours. The chapter is written around phone calls, so check Hawaii's Office of Consumer Protection before you assume its rules govern a text campaign.

Recording calls in Hawaii

HRS 803-42(b)(3)(A) lets a person who is not acting for the government intercept a call in which they participate, or one where a participant agreed beforehand, unless the purpose is criminal or tortious. That is one-party consent, and it lets a Hawaii business record its own inbound calls. A caller from an all-party state is still a risk, and Hawaii's wide mix of mainland and island customers makes that real, so a short notice at the start of every call is the practical fix. Details are in our guide to recording business calls.

The general excise tax on your invoices

Hawaii has no sales tax. The general excise tax, or GET, applies to business activity, so mowing, cleaning, washing and repair income are in scope. The Department of Taxation lists 4% for most activity, with the county surcharge added on top. Its page lists a maximum pass-on rate of 4.7120% for Honolulu, Kauai and Maui, and the same for Hawaii County. The page says the tax is on the business and not on the customer, and that a seller may choose to visibly pass on the GET and any county surcharge. It is not required.

That matters for online payments and booking pages. If your checkout adds a line for tax, it should be built to the rate you are allowed to pass on, and you should get a GET license before you start: the Department lists a one-time $20 fee using Form BB-1 or Hawaii Tax Online, as listed in October 2026. Our sales tax on services guide covers how to think about the line item.

What this means for your setup

Website. Put your license number and licensed or filed business name on every page, in your profile listings and in paid ads. Show whether a price includes the GET. An online quote form can start the conversation, and a home improvement job that the rule covers ends in a signed contract. See our website service page for the layout we use.

Business phone line. Record with a notice, call homes only between 8 a.m. and 9 p.m. local time, and keep a list of people who ask not to be called.

AI receptionist. Inbound answering fits these rules with a recording notice. If it places outbound calls, the 481P disclosures and hours apply to those campaigns. Our AI receptionist page describes the inbound setup.

Email. The sources reviewed here found no Hawaii email statute specific to contractors, so CAN-SPAM governs your newsletters. Confirm anything high-stakes with the agency or a Hawaii attorney, because rules change.

Frequently asked questions