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Quarterly interest rates | Internal Revenue Service
2024 interest rates by category ; Underpayment (corporate and non-corporate), 8%, 8% ; GATT (part of a corporate overpayment exceeding $10,000), 5.5%, 5.5% ; Large
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2017 Publication 505
Mar 1, 2017 The federal income tax is a pay-as-you-go tax. You must pay the tax as you earn or receive in- come during the year. There are two ways to.
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26 U.S. Code 6601 - Interest on underpayment, nonpayment
Interest shall be imposed under subsection (a) in respect of any assessable penalty, additional amount, or addition to the tax (other than an addition to tax
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