Hawaii offers homeowners up to $10,000 to replace old cesspools

Relating To Cesspools.

Introduced· 2026-01-26

Who's it for

Who's it for: Everyday People

What it means for you

8/10Helps you

Good for everyday people ·

Heavily funded

Plain‑English summary, cross‑checked against the official bill text.

This bill would give homeowners a tax credit of up to $10,000 to help pay for replacing an old cesspool with a modern septic or sewer system.

Our take

What we think, in plain words.

Replacing a cesspool is incredibly expensive, but it is necessary to protect the environment and local water supplies. This bill steps in to help regular homeowners shoulder that massive cost by offering a generous tax credit. While the state limits the total payout to $5 million a year and delays the start until 2028, it is still a straightforward win for both homeowners' wallets and public health.

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The facts

What the bill actually says, no spin.

Offers a state income tax credit of up to $10,000 for upgrading a cesspool to a septic or sewer system.
Caps the total amount of credits the state will give out at $5 million per year.
Allows homeowners who miss the $5 million cap in one year to claim the credit the next year.
Creates a small pilot program to test upgrading large cesspools shared by multiple homes.
Delays the start of the tax credit until 2028 and ends it in 2032.