Hawaii SALT Cap Calculator
For Hawaii filers.
The short answer: At the scenario numbers below, the OBBBA SALT deduction is $18,500 — about $4,440 back at a 24% rate ($171 per biweekly paycheck).
⚠️ This calculator provides estimates for informational and educational purposes only. It is not tax advice. Results are based on the One Big Beautiful Bill Act (OBBBA) and IRS Schedule 1-A. Consult a qualified tax professional for your specific situation.
Your State's Slice of the $40,000 Cap
Hawaii's 11% top bracket makes it a major SALT winner from the cap increase.
- • Income + property → SALT to $40,000
- • Phase-out above $500,000 MFJ
- • GEAT on purchases is a sales tax — only via the sales-tax election
Worked Example
A Honolulu MFJ household, $330,000 MAGI: about $24,000 income tax plus $4,500 property tax.
- • Deductible amount: $18,500
- • Federal income tax savings: $4,440 (at the 24% marginal rate)
- • Per biweekly paycheck: $171
Keep Reading
Frequently Asked Questions
Is Hawaii a big winner from the OBBBA SALT cap?
Yes — high-bracket filers often pay $20–30k state tax that the old cap truncated.
Does the general excise tax count?
Not directly — it's effectively a sales tax; only via electing sales tax in lieu of income tax, which high earners rarely should.