The tax deduction for prepaying 2018 state taxes has been disallowed today. You can pay what you owe for 2017 but not prepay 2018.
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In a pre-emptive move against accounting maneuvers in high-tax states such as New York and California, the bill prohibits taxpayers from prepaying next year’s state and local income or property taxes, in order to deduct them from 2018 taxes. That form of tax planning would have allowed taxpayers to benefit more from the full state and local deduction this year before it is capped next year.
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In a pre-emptive move against accounting maneuvers in high-tax states such as New York and California, the bill prohibits taxpayers from prepaying next year’s state and local income or property taxes, in order to deduct them from 2018 taxes. That form of tax planning would have allowed taxpayers to benefit more from the full state and local deduction this year before it is capped next year.
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