Thomas Grande Helps Pass Hawaii Law to Avoid Double Taxation for Whistleblowers

Most false claims laws stop at the door of tax enforcement. Hawaii is one of the exceptions. Through Act 48, the state opened the door to whistleblower-driven cases involving tax fraud — a relatively rare and powerful tool. This page explains, in plain English, what that means and why it matters to anyone who has seen significant state tax cheating in Hawaii.

This page is general information about state law, not legal or tax advice. Confirm current statutory details with counsel — see our disclaimer.

What makes Hawaii's approach unusual

The federal False Claims Act contains a "tax bar" — it generally does not apply to claims under the Internal Revenue Code. Many state false claims laws follow the same approach and carve tax out. Hawaii's framework is notable because it extends qui tam-style whistleblower mechanics into the tax arena, allowing private parties to bring certain tax fraud claims on the state's behalf and share in recoveries.

That combination — whistleblower incentives plus tax enforcement — is uncommon, which is why practitioners pay attention to it.

Who this could matter to

A law like this is most relevant to people with inside knowledge of substantial, knowing tax fraud against the state: accountants, controllers, tax preparers, and employees who see a business deliberately underreport or evade Hawaii taxes. Honest disputes over how much tax is owed are not the target; knowing fraud is.

How a state tax whistleblower case generally works

While the details differ from the federal model, the basic shape is familiar:

1. A whistleblower with specific knowledge of tax fraud, working with counsel, brings the matter forward under the statute. 2. The state reviews the allegations and the evidence. 3. If the case succeeds and the state recovers, the whistleblower may receive a share of the recovery.

Because tax fraud can involve large sums, even a modest number of cases can produce meaningful recoveries — and meaningful awards.

Why it matters

Tax fraud shifts the burden onto honest taxpayers and starves public services of revenue. By inviting insiders to come forward, a law like Act 48 reaches schemes that auditors might never find on their own.

How Hawaii's law compares to the federal model

The federal False Claims Act is the template most states follow, but it deliberately leaves tax out through its "tax bar." Hawaii's approach is notable precisely because it brings whistleblower mechanics into an area the federal statute avoids. The familiar elements remain — a private party with inside knowledge, a process for bringing the matter to the state, and a share of any recovery — but the procedures, deadlines, and limits are Hawaii's own. They should never be assumed to mirror the federal model, which is one reason specialized counsel matters so much here.

This combination of whistleblower incentives and tax enforcement is rare. Most states that have false claims laws follow the federal lead and exclude tax. Hawaii's willingness to reach tax fraud makes it a case study that practitioners and policymakers watch as other states consider similar measures heading through 2025 and 2026.

What kinds of tax fraud it targets

A law like this is aimed at deliberate, knowing tax fraud against the state — not at honest disagreements over how much is owed. The conduct that tends to matter involves businesses that knowingly underreport income, conceal taxable transactions, or use sham arrangements to evade Hawaii taxes. The people best positioned to recognize that conduct are insiders: accountants, controllers, bookkeepers, tax preparers, and employees who see the real numbers behind the filed ones.

Why state-level whistleblower laws are spreading

Tax fraud is notoriously hard for auditors to catch on their own, because the people committing it control the records. State governments lose real revenue to it, and that loss falls on honest taxpayers. By inviting insiders to come forward and share in recoveries, laws like Hawaii's Act 48 reach schemes that might otherwise stay hidden. As states look for tools to close revenue gaps, whistleblower-driven enforcement is an increasingly attractive option — and Hawaii's experience is part of that conversation.

If you have information about Hawaii tax fraud

If you have specific, firsthand knowledge of significant, knowing tax fraud against the State of Hawaii, the right step is to speak with an attorney familiar with Hawaii's whistleblower and tax statutes, because the rules are specialized and change over time. QuitamOnline gathers these resources to help you understand the landscape; to explore the broader federal framework, see our eligibility guide or request a confidential consultation.

Where state false claims laws are headed

Hawaii is part of a broader, slow-moving shift. A majority of states now have some form of false claims law, most modeled on the federal statute and most focused on Medicaid and other program fraud rather than tax. What makes the tax dimension interesting is that it addresses a category the federal government deliberately leaves to a separate IRS program. As states search for ways to recover lost revenue without expanding their audit staff, whistleblower-driven enforcement — paying insiders a share of what they help recover — is an appealing model. Hawaii's experience is one of the reference points in that policy conversation through 2025 and 2026.

For a potential whistleblower, the practical lesson is that the rules depend heavily on which state and which program are involved. A scheme that supports a strong case under one state's law may fall outside another's. That is why general information is only a starting point and specialized, state-specific legal advice is essential before acting.

Why so few states reach tax fraud

Hawaii's approach stands out precisely because it is rare. Most false claims laws — federal and state alike — deliberately carve tax out, leaving tax enforcement to revenue agencies and their own whistleblower programs. Lawmakers worry that opening tax disputes to private qui tam-style suits could flood the courts with cases that are really disagreements over how much is owed, rather than genuine fraud. States that do extend their laws to tax, like Hawaii, typically build in guardrails to keep the focus on knowing, substantial fraud. That balance — incentivizing insiders while screening out ordinary disputes — is the central design challenge for any state considering this path, and it is why the handful of existing examples draw close attention from practitioners through 2025 and 2026.

Frequently asked questions

Does the federal False Claims Act cover tax fraud?

Generally no. The federal FCA contains a tax bar. The IRS runs a separate whistleblower program for federal tax matters, which is distinct from qui tam.

Is reporting state tax fraud the same as filing a federal qui tam case?

No. State tax whistleblower laws are their own creatures, with their own procedures and limits. They should not be assumed to mirror the federal FCA.

Who should I talk to about a Hawaii tax fraud concern?

An attorney familiar with Hawaii's whistleblower and tax statutes. The rules are specialized and change over time.

Do many states allow tax whistleblower cases?

Most state false claims laws exclude tax, following the federal model. A small number reach tax fraud, which is what makes Hawaii's approach notable.

What kind of evidence matters in a state tax case?

Specific, firsthand knowledge of knowing fraud — concealed income, sham transactions, or deliberate underreporting — supported by records, rather than a disagreement over how much tax is owed.

Related reading

For the broader federal picture, see our False Claims Act overview and whistleblower rewards page, or check your situation with the eligibility guide.