Installment Agreement (IA)
Definition
An installment agreement is a formal payment plan with the IRS that allows a taxpayer to pay a tax debt in monthly installments over a period of time rather than in a single lump sum.
Why This Matters for Tax Relief
Installment agreements are the most common form of IRS resolution and come in several tiers based on balance and compliance history. Guaranteed Installment Agreements (balance under $10,000, 36-month term, automatic approval) require no financial disclosure. Streamlined Installment Agreements (balance under $50,000, 72-month term) are available without a full Collection Information Statement. For balances over $50,000, a full financial analysis is required and the IRS may file a Notice of Federal Tax Lien. The critical caveat in all installment agreements: interest and the Failure to Pay penalty (0.25% per month while the IA is in force, reduced from 0.5%) continue to accrue throughout the payment period. A 60-month IA on $50,000 at 6% interest will cost significantly more than the original balance by payoff.
2026 Update
In 2026, the IRS expanded online self-service options for installment agreements. Balances up to $100,000 can now be managed fully online at IRS.gov without calling or visiting an office. The 72-month streamlined threshold has not changed.
Apply This Knowledge
Related Terms
RCP (Reasonable Collection Potential)
Reasonable Collection Potential is the mathematical floor the IRS uses to evaluate an Offer in Compromise — the total amount the government believes it can collect from a taxpayer before the Collection Statute expires.
Offer in Compromise (OIC)
An Offer in Compromise is a formal agreement between a taxpayer and the IRS to settle a tax debt for less than the full amount owed, accepted when collection in full would create economic hardship or the amount offered represents the most the IRS can reasonably expect to collect.
Quick Sale Value (QSV)
Quick Sale Value is the IRS's estimate of what an asset would realistically sell for in a forced or expedited sale, typically calculated as 80% of Fair Market Value for most assets.
Penalty Abatement
Penalty abatement is the reduction or elimination of IRS penalties assessed on a tax account, available through First-Time Penalty Abatement, Reasonable Cause, or Statutory Exceptions.