It depends.
Real Estate taxes are an itemized deduction and if the total of all your itemized deductions is under the federal standard deduction amount, then the standard deduction will be used on your return. If the standard deduction amount is used, then you won't see any impact of the real estate deductions on your return.
If you are itemizing on your federal return, the tax reform changes for 2018 have limited the amount of state and local taxes (which includes real estate taxes) that can be included as itemized deductions to $10,000. Therefore, if you are itemizing on your return, you may not see the impact of your Hawaii real estate taxes if the total is being limited to $10,000.
