Blog

Hawaii's General Excise Tax (GET), Explained for Small Businesses

T Tides Bookkeeping · · 12 min read

Most people move to Hawaii, start a business, and assume the state's General Excise Tax is just a sales tax with a different name. It isn't — and that single misunderstanding is behind a large share of the tax notices Hawaii small businesses receive. The GET is a tax on your gross income, not a tax the customer legally owes. That distinction changes who is liable, what's taxable, how you price your work, and what you file. Here's a plain-English guide to how the GET actually works in 2026, what you owe, and how to keep it from becoming a year-end surprise.

GET is a gross-receipts tax, not a sales tax

On the mainland, sales tax is legally the customer's tax. The business is just a collection agent: you add tax at the register, hold it in trust, and remit it. If a customer is exempt, no tax is due, and the tax never really belonged to you.

Hawaii's General Excise Tax works the other way around. The GET is levied on the business, measured against your gross receipts — essentially your total business income before any deductions for costs, labor, or overhead. You owe it whether or not you ever mention it to a customer. You are allowed to pass the cost on (more on that below), but legally the tax is yours. That's why you'll sometimes hear the GET described as a "privilege tax" — a tax on the privilege of doing business in the islands.

The practical consequences of that difference are big:

Who owes GET

If you earn business income from activity in Hawaii, assume you owe GET until a tax professional tells you otherwise. It reaches far wider than most owners expect:

Out-of-state sellers matter here too. Hawaii, like most states, has an economic-nexus rule: a business with no physical presence in Hawaii can still owe GET once it crosses the state's sales-or-transaction threshold. If you ship into Hawaii regularly or provide services to Hawaii clients, that's a question worth checking rather than guessing at.

The rates: 4% base plus a county surcharge

Hawaii's GET has a few different rates depending on the activity. As of 2026:

On top of the 4.0% base rate, each county adds a 0.5% county surcharge, which brings the combined rate to 4.5% for most retail activity. Here's the part that trips people up in 2026: all four Hawaii counties now impose the 0.5% surcharge. Maui County was the last holdout, and its surcharge took effect January 1, 2024 — so if you're working from older guidance that says "Maui has no surcharge," that information is out of date.

County surcharge status (as of 2026)
  • City & County of Honolulu (Oʻahu): 0.5% surcharge, in effect since 2007 (currently authorized through 2030) → 4.5% combined
  • County of Hawaiʻi (Big Island): 0.5% surcharge since 2020 (through 2030) → 4.5% combined
  • County of Kauaʻi: 0.5% surcharge since 2019 (through 2030) → 4.5% combined
  • County of Maui (includes Molokaʻi and Lānaʻi): 0.5% surcharge since January 1, 2024 (through 2030) → 4.5% combined

Two important details about the surcharge: it applies only to activities taxed at the 4.0% rate, so wholesale (0.5%) and insurance-commission (0.15%) income are not surcharged. And the surcharge is sourced by where the business activity is assigned — which is why multi-island businesses have to track receipts by district and can't just apply one blended rate to everything. These county surcharge authorizations are set through 2030 under current law; always confirm the current figure before you rely on it, because the Legislature can extend, raise, or change them.

Passing GET on to customers — and the 4.712% question

You are permitted to pass the GET on to your customers as a "visibly passed-on" charge, the way a mainland business adds sales tax. But because the GET is a tax on your gross receipts, whatever you charge the customer to cover the tax also becomes part of your gross receipts — so it's taxed too. That's the "tax on tax" or pyramiding effect, and it's why the maximum pass-on rate is higher than the headline rate.

Here's the arithmetic in surcharge counties, where the combined rate is 4.5%:

A couple of things to keep straight. First, passing the tax on is optional in the sense that you can absorb it in your pricing instead — but you owe the GET either way, so most businesses build it into rates. Second, 4.712% is a maximum; you can't tack on more than the actual tax and call it "GET." Third, if you'd rather keep it simple, you can just raise your prices to bake the tax in and not itemize it at all. What you cannot do is treat the collected GET as a customer's trust fund the way sales tax works — it's your income, and it belongs on your books as revenue with a corresponding tax expense.

What's taxable — services, rents, and commissions included

Because the GET reaches gross income from nearly all business activity, the taxable base is broad. Categories that catch mainland transplants off guard include:

Genuine exemptions and deductions exist — for example, certain wholesale transactions, some sales to the federal government, and specific nonprofit activity — but they are narrower than the exemptions you'd expect under a sales-tax regime, and each has documentation requirements. The safe default is to assume income is taxable and confirm an exemption rather than assume one applies. If your business lives in a specific niche, our industry-specific guides for Hawaii businesses walk through how the GET tends to hit that model in practice.

Registering: Form BB-1 and your GET license

Before you collect a dollar of taxable income, you need a GET license. You get it by filing the Basic Business Application, Form BB-1, with the Hawaii Department of Taxation. A few points worth knowing:

Once you're licensed, you'll receive a Hawaii Tax ID and be assigned a filing frequency based on your expected liability. That frequency determines how often you file the periodic return.

Filing cadence: Form G-45 (periodic) and Form G-49 (annual)

Hawaii's GET filing has two moving parts, and missing either one is a common way to fall out of compliance.

The periodic return — Form G-45

Form G-45 is your periodic GET return. How often you file it depends on how much GET you expect to owe in a year:

Whatever your frequency, the G-45 is generally due by the 20th day of the month following the end of the filing period. So a monthly filer's January return is due February 20; a quarterly filer covering January–March files by April 20. Even a period with zero taxable income usually requires a return — you file a "zero" G-45 rather than skipping it.

The annual reconciliation — Form G-49

Here's the one that catches people. On top of your periodic G-45s, every GET filer must also file an annual reconciliation, Form G-49, after the tax year closes. The G-49 reconciles the full year: it's where you true up what you reported on the periodic returns, claim any annual deductions or exemptions, and settle any shortfall or overpayment.

For a calendar-year business, the G-49 is due by the 20th day of the fourth month after year-end — April 20. Filing all twelve monthly G-45s but forgetting the G-49 is one of the most common Hawaii compliance gaps, and it's exactly the kind of thing the state flags. Think of the G-45s as your ongoing payments and the G-49 as the annual return that ties them together — you need both.

Behind on your G-45s or dreading the G-49?

We keep GET reconciled month by month so filing is a non-event. Book a free 15-minute call.

Schedule Free Consultation →

Common GET mistakes small businesses make

After years of cleaning up Hawaii books, the same handful of errors show up again and again:

How clean monthly bookkeeping keeps GET under control

Almost every GET problem above traces back to the same root cause: books that aren't kept current. When your bookkeeping is reconciled every month, the GET essentially takes care of itself, because the numbers you need for the return are already sitting in front of you. Here's what that looks like in practice:

That's the core of what we do. Our monthly bookkeeping service keeps your income reconciled and coded so GET filing is a byproduct of clean books rather than a separate fire drill. We work with businesses across the islands — from Honolulu and Oʻahu to Kailua-Kona and the Big Island — and you can see the full picture of how we support Hawaii small businesses on our state page.

If your books are behind and you're not sure the last several G-45s were even right, that's fixable too. Getting current is usually the first step before any tax-season work — and it pairs naturally with a broader tax-season prep checklist so nothing else slips. Clean books also keep you clear of the kind of bookkeeping mistakes that draw scrutiny at both the state and federal level.

The bottom line

Hawaii's General Excise Tax is not a sales tax with a different name — it's a gross-receipts tax on your business, and that changes everything about how you handle it. You owe 4.5% on most activity (all four counties now include the 0.5% surcharge), you can pass up to 4.712% on to customers to cover the tax-on-tax effect, and nearly all income — services, rents, and commissions included — is in the base. Register with Form BB-1, file your periodic G-45s on the schedule the state assigns, and never skip the annual G-49 reconciliation. Do all of that on top of books that are reconciled every month, and the GET stops being a source of anxiety and becomes what it should be: a routine number you already know. This article is general education, not tax advice — GET rules and rates change, so confirm current figures with the Hawaii Department of Taxation or a professional before you file.

Keep Reading

Keep Reading

How to Categorize Business Expenses (the Right Way)
A plain-English guide to categorizing business expenses: the common categories, ...
The Small Business Chart of Accounts: A Complete Guide
What a chart of accounts is, the five account types, how to number and organize ...
Bookkeeping for Truckers & Owner-Operators
Owner-operator bookkeeping made clear: cost per mile, the per-diem deduction, IF...
Accounts Payable Receivable
Service