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Last Updated: 10/26/2017

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Insurance Premium Tax > File and Pay > Filing requirements

  • How do I calculate penalties or interest on a late or amended return?Back to top

    Calculate penalties and interest as follows (see example below):

    • Late filing penalty = 5 percent of unpaid tax
    • Late payment penalty = 5 percent of unpaid tax (if 1 to 30 days late); 10 percent (if 31 to 60 days late); or 15 percent (if over 60 days late)
    • Interest = (tax + penalty) × interest rate × # days late ÷ 365
    Example: You file your return 37 days late and owe $1,000 in tax.
    Calculate your penalties as follows:
    • Late filing penalty = $1,000 × 0.05 = $50
    • Late payment penalty = $1,000 × 0.10 = $100
    Calculate your interest as follows (assuming the interest rate is 3 percent):
    • Interest = ($1,000 + 50 + 100) × 0.03 × 37 ÷ 365 = $3.50

    Note: For the current interest rate, see Penalty and Interest Rates.