Title 26 › Subtitle F — Procedure and Administration › CHAPTER 67 — INTEREST › Subchapter C — Determination of Interest Rate; Compounding of Interest › § 6622
When you figure interest the IRS or a taxpayer must pay under the tax laws or under sections 1961(c)(1) or 2411 of Title 28, count the interest so it compounds every day. Any other amount that is worked out based on that interest must also use daily compounding. Do not use daily compounding when computing the addition to tax for failing to pay estimated tax under section 6654 or 6655.
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Internal Revenue Code, Source: USLM XML via OLRC
Legislative History
Reference
Citation
26 U.S.C. § 6622
Title 26, Internal Revenue Code
Last Updated
Sep 22, 2026
Release point: 119-110