unpaid taxes - CLAW Tax Group

IRS Interest on Unpaid Taxes: How It Accrues and What It Costs You

by Matthew Wildes, JD, CPA | Aug 14, 2026 | Tax Penalties & Relief

Read Time:7 Minute, 10 Second When a tax balance goes unpaid, the IRS does not simply hold the number steady while collection proceedings unfold. Interest begins accruing the day after the original filing deadline, it compounds every single day, and it applies not...

IRS Interest on Unpaid Taxes: How It Accrues and What It Costs You

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