Finance

South Dakota has no state income tax. This means that mortgage interest deductions are:

AWorth more to South Dakota homeowners than to homeowners in high-tax states
BNot available to South Dakota homeowners
CLess valuable to South Dakota homeowners since there is no state income tax to offset✓ Correct
DAutomatically doubled for South Dakota homeowners by the IRS

Explanation

The federal mortgage interest deduction reduces federal income taxes regardless of state. Without a state income tax, there's no state tax benefit from the deduction — but the federal benefit still applies. Overall, less total savings compared to high-tax-state homeowners.

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