IRS Payment Plan vs Penalty
IRS Payment Plan vs Penalty Calculator
What this calculator does
The IRS charges a failure-to-pay penalty of 0.5% per month. A payment plan has a setup fee plus a lower 0.25% monthly penalty. This calculator compares the two.
The math, with a worked example
Do-nothing penalty = balance × 0.005 × months. Plan cost = setup fee + balance × 0.0025 × months. Savings = penalty − plan cost. A $5,000 balance over 12 months costs $300 in penalties. A plan with a $130 setup fee costs about $280, saving $20.
Why this matters
Ignoring an IRS balance costs more than arranging to pay it: the failure-to-pay penalty accrues monthly while a payment plan cuts that rate in half. On $5,000 over a year, the do-nothing path loses even against the plan's setup fee.
Methodology and transparency
Do-nothing = balance × 0.5% × months (the standard failure-to-pay penalty rate); plan = setup fee + balance × 0.25% × months, the reduced rate while an installment agreement is active — both per IRS penalty guidance. Interest on the balance accrues in both scenarios and is omitted, which understates both sides but doesn't change the comparison's winner. Setup fees vary by plan type and drop with direct debit. Everything runs in your browser; no data is sent or stored.
Last reviewed: 2026-08-08
Common questions
Does the IRS always accept a plan?
Most taxpayers qualify for short-term plans if the balance is under a certain amount.
Does this include interest?
No. Interest accrues on both options. This calculator focuses on the penalty difference.