IRS sets and publishes current and prior years interest rates quarterly for individuals and businesses to calculate interest on underpayment and overpayment balances. To get the latest information on interest rates sent to your email, subscribe to the IRS Newswire with e-News subscriptions. On this page Current year 2024 quarterly interest rates Prior years quarterly interest rates How we calculate interest rates Interest rate categories and formulas Table 1: Tax underpayments interest formulas Table 2: Tax overpayments interest formulas Laws and regulations Related topics Current year 2024 quarterly interest rates 2024 interest rates by category Interest categories 4th quarter (Oct-Dec) 3rd quarter (Jul-Sep) 2nd quarter (Apr-Jun) 1st quarter (Jan–Mar) Non-corporate overpayment (for example, individual) 8% 8% 8% 8% Corporate overpayment 7% 7% 7% 7% Underpayment (corporate and non-corporate) 8% 8% 8% 8% GATT (part of a corporate overpayment exceeding $10,000) 5.5% 5.5% 5.5% 5.5% Large corporate underpayment (LCU) 10% 10% 10% 10% Internal Revenue Code (IRC) 6603 deposit (federal short-term rate) 5% 5% 5% 5% Source 4th quarter rates - Internal Revenue Bulletin: 2024-37 3rd quarter rates - Internal Revenue Bulletin: 2024-24 2nd quarter rates - Internal Revenue Bulletin: 2024-10 1st quarter rates - Internal Revenue Bulletin: 2023-49 Prior years quarterly interest rates 2023 interest rates by category Interest categories 4th quarter (Oct – Dec) 3rd quarter (Jul – Sep) 2nd quarter (Apr-Jun) 1st quarter (Jan–Mar) Non-corporate overpayment (for example, individual) 8% 7% 7% 7% Corporate overpayment 7% 6% 6% 6% Underpayment (corporate and non-corporate) 8% 7% 7% 7% GATT (part of a corporate overpayment exceeding $10,000) 5.5% 4.5% 4.5% 4.5% Large corporate underpayment (LCU) 10% 9% 9% 9% Internal Revenue Code (IRC) 6603 deposit (federal short-term rate) 5% 4% 4% 4% Source 4th quarter rates – Internal Revenue Bulletin: 2023-37 3rd quarter rates – Internal Revenue Bulletin: 2023-23 2nd quarter rates – Internal Revenue Bulletin: 2023-09 1st quarter rates – Internal Revenue Bulletin: 2022-51 2022 interest rates by category Interest categories 4th quarter (Oct-Dec) 3rd quarter (Jul–Sep) 2nd quarter (Apr–Jun) 1st quarter (Jan–Mar) Non-corporate overpayment (for example, individual) 6% 5% 4% 3% Corporate overpayment 5% 4% 3% 2% Underpayment (Corporate and Non-Corporate) 6% 5% 4% 3% GATT (part of a corporate overpayment exceeding $10,000) 3.5% 2.5% 1.5% 0.5% Large corporate underpayment (LCU) 8% 7% 6% 5% Internal Revenue Code (IRC) 6603 deposit (federal short-term rate) 3% 2% 1% 0% Source 4th quarter rates – Internal Revenue Bulletin: 2022-35 3rd quarter rates – Internal Revenue Bulletin: 2022-23 2nd quarter rates – Internal Revenue Bulletin: 2022-10 1st quarter rates – Internal Revenue Bulletin: 2021-50 2021 interest rates by category Interest categories 4th quarter (Oct–Dec) 3rd quarter (Jul–Sep) 2nd quarter (Apr–Jun) 1st quarter (Jan–Mar) Non-corporate overpayment (for example, individual) 3% 3% 3% 3% Corporate overpayment 2% 2% 2% 2% Underpayment (corporate and non-corporate) 3% 3% 3% 3% GATT (part of a corporate overpayment exceeding $10,000) 0.5% 0.5% 0.5% 0.5% Large corporate underpayment (LCU) 5% 5% 5% 5% Internal Revenue Code (IRC) 6603 deposit (federal short-term rate) 0% 0% 0% 0% Source 4th quarter rates – Internal Revenue Bulletin: 2021-37 3rd quarter rates – Internal Revenue Bulletin: 2021-25 2nd quarter rates – Internal Revenue Bulletin: 2021-12 1st quarter rates – Internal Revenue Bulletin: 2020-52 2020 interest rates by category Interest categories 4th quarter (Oct–Dec) 3rd quarter (Jul–Sep) 2nd quarter (Apr–Jun) 1st quarter (Jan–Mar) Non-corporate overpayment (for example, individual) 3% 3% 5% 5% Corporate overpayment 2% 2% 4% 4% Underpayment (corporate and non-corporate) 3% 3% 5% 5% GATT (part of a corporate overpayment exceeding $10,000) 0.5% 0.5% 2.5% 2.5% Large corporate underpayment (LCU) 5% 5% 7% 7% Internal Revenue Code (IRC) 6603 deposit (federal short-term rate) 0% 0% 2% 2% Source 4th quarter rates – Internal Revenue Bulletin: 2020-39 3rd quarter rates – Internal Revenue Bulletin: 2020-26 2nd quarter rates – Internal Revenue Bulletin: 2020-12 1st quarter rates – Internal Revenue Bulletin: 2019-52 2019 interest rates by category Interest categories 4th quarter (Oct–Dec) 3rd quarter (Jul–Sep) 2nd quarter (Apr–Jun) 1st quarter (Jan–Mar) Non-corporate overpayment (for example, individual) 5% 5% 6% 6% Corporate overpayment 4% 4% 5% 5% Underpayment (corporate and non-corporate) 5% 5% 6% 6% GATT (part of a corporate overpayment exceeding $10,000) 2.5% 2.5% 3.5% 3.5% Large corporate underpayment (LCU) 7% 7% 8% 8% IRC 6603 deposit (federal short-term rate) 2% 2% 3% 3% Source 4th quarter rates – Internal Revenue Bulletin: 2019-38 3rd quarter rates – Internal Revenue Bulletin: 2019-26 2nd quarter rates – Internal Revenue Bulletin: 2019-11 1st quarter rates – Internal Revenue Bulletin: 2018-51 2018 interest rates by category Interest categories 4th quarter (Oct–Dec) 3rd quarter (Jul–Sep) 2nd quarter (Apr–Jun) 1st quarter (Jan–Mar) Non-corporate overpayment (for example, individual) 5% 5% 5% 4% Corporate overpayment 4% 4% 4% 3% Underpayment (corporate and non-corporate) 5% 5% 5% 4% GATT (portion of a corporate overpayment exceeding $10,000) 2.5% 2.5% 2.5% 1.5% Large corporate underpayment (LCU) 7% 7% 7% 6% IRC 6603 deposit (federal short-term rate) 2% 2% 2% 1% Source 4th quarter rates – Internal Revenue Bulletin: 2018-39 3rd quarter rates – Internal Revenue Bulletin: 2018-26 2nd quarter rates – Internal Revenue Bulletin: 2018-13 1st quarter rates – Internal Revenue Bulletin: 2017-52 2017 interest rates by category Interest categories 4th quarter (Oct–Dec) 3rd quarter (Jul–Sep) 2nd quarter (Apr–Jun) 1st quarter (Jan–Mar) Non-corporate overpayment (for example, individual) 4% 4% 4% 4% Corporate overpayment 3% 3% 3% 3% Underpayment (corporate and non-corporate) 4% 4% 4% 4% GATT (part of a corporate overpayment exceeding $10,000) 1.5% 1.5% 1.5% 1.5% Large corporate underpayment (LCU) 6% 6% 6% 6% IRC 6603 deposit (federal short-term rate) 1% 1% 1% 1% Source 4th quarter rates – Internal Revenue Bulletin: 2017-39 3rd quarter rates – Internal Revenue Bulletin: 2017-26 2nd quarter rates – Internal Revenue Bulletin: 2017-12 1st quarter rates – Internal Revenue Bulletin: 2016-51 How we calculate interest rates Interest will accrue on any unpaid tax, penalties and interest until the balance is paid in full. The interest rates we charge and pay on overpayments and underpayments are compounded daily. This means the interest is assessed on the previous day’s balance plus the interest. For details, see Interest. We use the federal short-term rate based on daily compounding interest to calculate the interest we charge and pay. Changes to the rate don't affect the interest rate charged for prior quarters or years. Interest rate categories and formulas Different interest rates apply to underpayments and overpayments, depending on whether you're an individual or a corporation. Use these tables to find the formula to calculate the rate for your type of interest. Table 1: Tax underpayments interest formulas Type of interest Applies to Formula Standard Corporate and non-corporate underpayments Federal short-term rate plus 3 percentage points Large corporate underpayment Underpayments of tax exceeding $100,000 by C-corporations Federal short-term rate plus 5 percentage points Table 2: Tax overpayment interest formulas Type of interest Applies to Formula Standard Non-corporate overpayments Federal short-term rate plus 3 percentage points Corporate Corporate overpayments Federal short-term rate plus 2 percentage points Large corporate overpayment Corporate overpayments exceeding $10,000 Federal short-term rate plus 0.5 of a percentage point Laws and regulations Determination of rate of interest — IRC Section 6621 Interest compounded daily — IRC Section 6622 Related Notice 746, Information About Your Notice, Penalty and Interest PDF Penalties
