Partial Payment Installment Agreement: How It Works

By the Tax Relief Answers editors · Sources checked November 3, 2026 · How we check

The short answer

A partial payment installment agreement (PPIA) is an IRS payment plan whose monthly payments, continued until the collection period ends, will not pay the full balance. The IRS generally has 10 years from the date a tax was assessed to collect it, per its collection period page and 26 U.S.C. 6502; whatever is still owed when that date arrives is no longer collectible. The IRS grants a PPIA only after reviewing a financial statement, and it can revisit the payment amount while the plan runs.

How it compares with the other options

Feature	Regular payment plan	Partial payment plan	Offer in Compromise
Pays the full balance?	Yes, by the end of the plan	No, the remainder expires at the collection deadline	No, the IRS accepts a set amount
Financial statement needed?	No, if you owe $50,000 or less and apply online	Yes, Form 433-F or the form the IRS requests	Yes, Form 433-A (OIC) with Form 656
Application cost	$0 short-term; $29 to $178 long-term, as of October 2026	The same installment agreement user fees apply	$205 fee plus a first payment, unless low income
Does the 10-year clock keep running?	Yes, once the plan is approved	Yes, once the plan is approved	No, it pauses during review, plus 30 days after a rejection
Can the IRS change it later?	Only if you default or ask	Yes, the IRS may review your finances and raise the payment	No, the accepted amount is fixed if you keep the terms

Fees come from the IRS payment plans page. The IRS's online tool handles plans that pay in full; a partial payment plan is requested by phone, by mail with Form 9465 and Form 433-F, or in reply to a notice.

When it fits

A PPIA fits when three things are true at once: you have some ability to pay each month, that ability is not enough to pay the balance before the collection deadline, and your situation is not so tight that Currently Not Collectible status applies. Compared with an Offer in Compromise, a PPIA has no $205 fee and no lump sum, but it leaves you paying for years and gives the IRS the right to look again.

Steps

Find your collection expiration dates. Request an account transcript through your IRS online account or Form 4506-T; each assessment has its own date.
Add up what you owe and what you can pay each month after necessary living expenses. If the monthly amount times the months left is less than the balance, you are in partial payment territory.
Complete Form 433-F with pay stubs, bank statements, and proof of expenses, and list every asset. The IRS checks whether an asset could be sold or borrowed against before it agrees to a partial plan.
Call the number on your notice, or 800-829-1040, and ask for a partial payment installment agreement; or mail Form 9465 with Form 433-F attached.
Choose direct debit if you can. The low-income fee waiver applies to direct debit plans.
Keep every payment on schedule and file every future return on time. A default ends the plan and restarts enforcement.
Expect a review. Keep your records, because the IRS may ask for an updated statement and raise the payment if your income has grown.

What a partial payment plan does not do

It does not stop interest or the failure-to-pay penalty. Interest is 7% per year for individuals as of the quarter starting October 1, 2026, and the penalty runs at 0.25% per month during an approved plan if you filed on time.
It does not prevent a lien. The IRS may file a Notice of Federal Tax Lien when it accepts a plan that does not pay in full.
It does not fix the payment forever. The IRS can review your finances and change the amount.
It does not pause the 10-year clock once approved; it only pauses while the request is pending, plus 30 days if the request is rejected.
It does not make sense for a young debt with many years left and income that is likely to rise.

Because the IRS decides a PPIA from the same Form 433-F you can complete yourself, paid help adds value mainly in presenting expenses correctly. A Low Income Taxpayer Clinic does this for free or for a small fee for people whose income is under 250% of the poverty guidelines.

FAQ

What is a partial payment installment agreement?

An IRS payment plan in which the monthly payments, continued until the collection period expires, do not pay the full balance. The unpaid remainder becomes uncollectible when the period ends.

How is a PPIA different from an Offer in Compromise?

A PPIA has no application fee or lump sum and pays monthly for years, but the IRS can review and raise the payment. An offer sets a fixed amount, costs $205 plus a first payment unless you qualify as low income, and pauses the collection clock during review.

Does a partial payment plan stop penalties and interest?

No. Interest continues at 7% per year as of October 2026, and the failure-to-pay penalty continues at 0.25% per month while the plan is in effect.

Can the IRS cancel a partial payment agreement?

Yes. The IRS may review your finances during the plan and raise the payment, and a missed payment or a new unpaid balance can default the agreement.