Owe the IRS Two Years in a Row? Adding a New Balance to Your Plan

Why a second balance puts your current plan at risk

An installment agreement is a deal with conditions, and staying current on new taxes is one of them. The tax code lets the IRS “alter, modify, or terminate” an agreement if you fail “to pay any other tax liability at the time such liability is due” (IRC 6159(b)(4)). The IRS manual lists the same two triggers for default: missing an installment payment, and failing to pay another tax liability when it is due (IRM 5.14.11.3). It also tells employees that “the taxpayer must remain tax compliant for the entire term of the IA, or they will default on the agreement” (IRM 5.14.1.2).

Two more points matter when a new year’s balance shows up:

• The new balance isn’t protected. The IRS generally doesn’t levy for the tax years inside an active plan, but a tax year that is not included in the plan can be levied (IRM 5.14.1.5).
• You get notice first. Before ending a plan, the IRS must send notice at least 30 days ahead explaining why (IRC 6159(b)(5)). That notice is usually a CP523, which says the IRS intends to terminate the agreement and levy.

So owing again does not end your plan automatically, but leaving the new balance unpaid can. The fix is to deal with it before it becomes a default.

Your options when you owe again

Revising the plan. Your IRS Online Account lets you view and revise an existing plan, and the Online Payment Agreement tool lets you change the payment amount or date. IRS.gov does not say the online tool can add a new tax year, so if it won’t, call the IRS at 800-829-1040 (IRS.gov, 2026). When a plan defaults because of an additional liability, the IRS manual allows reinstatement without a manager’s approval or a new financial analysis if the new balance adds no more than two monthly payments and the plan still finishes within the collection period, although the IRS must make a lien decision (IRM 5.14.11.5). The IRS may also charge a reinstatement fee if the plan has already defaulted.

If you can’t pay more. The IRS may place the account in currently not collectible status if paying would leave you unable to cover basic living expenses, or you may qualify for an offer in compromise. For a full map of options by amount owed, see relief by balance size.

Does the combined balance still fit a Simple Payment Plan?

A Simple Payment Plan (formerly the streamlined installment agreement) needs no financial statement, but it has a ceiling. For individuals, the aggregate unpaid balance of assessment across all your tax years must be $50,000 (IRS.gov, July 2026) or less (IRM 5.14.5.2). Accrued penalties and interest that have not yet been assessed are not counted, and the plan must be paid by the CSED (IRS.gov, July 2026), with a longest possible term of 10 years (IRS.gov, July 2026).

The IRS manual also allows you to make a payment to reduce the assessed balance before entering into the agreement, which is how many people stay under the limit.

The payment plan calculator shows what a new monthly amount might look like.

If you already got a CP523

A CP523 means the IRS says you have defaulted and intends to terminate the agreement and levy. The IRS says to contact it “as soon as possible but no later than 30 days from the date of the notice.” What to do:

1. Read why it defaulted. The notice explains the reason: a missed payment, an unpaid new balance, or both.
2. Pay before the termination date if you can. Paying the missed installment or the new balance can cure the default.
3. Call to reinstate. The IRS says “you may have to pay a fee to reinstate it or you may have to pay any new tax liability in full.”
4. Don’t let the 30 days pass. If you don’t respond, the IRS says it will terminate the agreement and may file a federal tax lien and levy wages or bank accounts.

If collection has already started, see how to pause IRS collection, and if you receive a final notice such as an LT11, follow the final notice action plan.

If you have an accepted offer in compromise: the five-year rule

A new balance is far more serious if the IRS accepted an offer in compromise from you. The Form 656 terms require you to “timely file tax returns and timely pay taxes for the five year period” beginning on the acceptance date. The Form 656 booklet (Rev. 4-2026) says that if you fail to do so, “we may default your offer,” and you become “liable for the original tax debt, less payments made, and all accrued interest and penalties.”

Other terms to know: the IRS may also default the offer if you don’t promptly pay tax assessed after acceptance for earlier years that were not in the offer, and on a joint offer only the spouse who fails to comply is in default. If you are inside the five-year window and see a balance coming, adjust withholding or estimated payments now (next section) and set money aside before April.

Stop it happening a third time

Owing twice usually means the withholding or estimates are set too low, not that the plan failed. Fix the cause:

• W-2 employees: run the IRS Tax Withholding Estimator. It estimates what your employer or pension should withhold and can generate a pre-filled Form W-4. Two jobs, a working spouse and bonuses are common causes; see fixing under-withholding.
• Self-employed or side income: make quarterly estimated payments with Form 1040-ES. The IRS payment periods end March 31, May 31, August 31 and December 31, with payments due April 15, June 15, September 15 and January 15 of the next year. See owing after a 1099 year.
• Plan for the current year: the IRS Online Account lets you set up a plan for the amount you expect to owe in the current tax year.
• Expect your refund to be kept: while you owe, the IRS applies future refunds to the balance, and it says to keep making scheduled payments anyway.

For more ways to avoid a bill next spring, see the best ways to avoid owing next year. And if you can’t pay this year’s balance by April, file on time anyway and follow can’t pay by April 15.

Not sure your plan can absorb the new balance? Global Gate Tax Relief offers a free review with no obligation; if the IRS online tools or a phone call will fix it, we will tell you. Get a free review or call 1-877-800-8180.

Frequently asked questions

Keep reading in the Tax Liability Guide

• Can't pay by April 15?File anyway, then set up a plan.
• Fixing W-2 under-withholdingWhy W-2 workers owe and how to stop it.
• Pause IRS collectionLegal ways to put collection on hold.
• Relief by balance sizeWhich IRS options fit what you owe.
• IRS Notice CP523The notice of intent to terminate your plan.