Late last month, the Treasury Inspector General for Tax Administration published its annual look at how the Internal Revenue Service handles people who never filed a tax return, and one figure stood apart from the rest. Of the 592,800 substitute-return cases the agency closed in fiscal year 2025, 430,900 closed without the IRS ever making contact with the person the return was built for. No phone call, no reply to a letter, no conversation about the numbers on the file. The case simply closes, and the assessment stands.
How the Automated Substitute for Return Program Builds a File Without a Filer
The mechanism behind these closures is the IRS’s Automated Substitute for Return program, known inside the agency as ASFR. When someone with a filing requirement does not submit a return, the IRS pulls the income documents third parties already sent it, including W-2 wage statements, 1099 forms for contract work, and interest and dividend reports, and uses those figures to build a return on the nonfiler’s behalf. The program applies specifically to individual filers; a separate substitute-filing process covers unfiled business returns.
That built return is favorable to the taxpayer in no meaningful sense. It applies a single or married-filing-separately status and the standard deduction only, with none of the dependents, itemized deductions, or credits the actual taxpayer might have been entitled to claim. The IRS’s own internal manual for the program lays out how a case moves from an income-document match to a proposed assessment without a caseworker ever needing to speak to anyone.
In practice, “without contact” does not mean the IRS mailed nothing at all. It typically means an initial notice proposing the assessment went out, followed by a statutory notice of deficiency giving the taxpayer a window to petition Tax Court, and no response ever came back: no call, no petition, no return of the taxpayer’s own. The assessment becomes final by default rather than through any actual exchange with an IRS employee.
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Why Closures Nearly Doubled Since the Program’s FY 2023 Restart
The TIGTA report’s own trend line explains why the no-contact volume is climbing. ASFR cases closed rose from 252,100 in fiscal year 2023 to 592,800 in fiscal year 2025, more than double in two years. The program had been paused intermittently since April 2020 and was not fully restarted until May 2024, so a large share of the recent closures represents inventory that had simply been waiting since before the pandemic-era pause, now moving through the pipeline in bulk rather than case by case.
That timing matters for the 430,900 figure specifically. As the total volume climbed, so did the count of cases closing without any taxpayer contact, meaning the backlog clearout is producing more assessments that a household may not discover until a bill or a notice of a federal tax lien arrives months later.
What $2.9 Billion in Additional Assessments Actually Means
TIGTA’s report ties the fiscal year 2025 ASFR closures to $2.9 billion in additional tax assessments. An assessment is not the same as money already collected. It is the IRS formally recording a debt on the account, at which point interest and failure-to-file or failure-to-pay penalties begin accruing on top of the base tax the substitute return calculated. Because the math behind an SFR never accounts for a taxpayer’s actual deductions or dependents, the assessed amount is frequently higher than what the person would owe on a return filed in their own name.
If the assessed balance goes unresolved, the same collection tools available for any tax debt can follow: a federal tax lien filed against property, a levy on wages or a bank account, or an offset of a future refund. For an ordinary household, that sequence can turn a manageable filing oversight into a certified balance carrying its own interest clock, long before anyone in the household has opened a single notice.
The Original Return That Can Still Replace an SFR
An ASFR closure is not the end of the road for the person named on it. The IRS’s processing rules allow a taxpayer to file an original return for the same tax year even after a substitute return has been assessed, and that original return, if it includes the deductions, credits, or dependents the SFR left out, can reduce or eliminate the assessed balance. The agency’s collection and examination procedures spell out how a subsequently filed original return gets compared against the SFR figures and adjusted from there.
How the IRS Picks Which Nonfiler Cases Skip Contact
The pattern of assessing first and talking later is not new to fiscal year 2025. It has been a standing concern raised by the Taxpayer Advocate Service’s review of the ASFR program, an independent office inside the IRS, which found that case selection runs largely off income-matching data rather than any individualized look at a taxpayer’s circumstances. That helps explain why a growing caseload produces a growing number of files that close without a single conversation.
Put the two verified numbers side by side and the shape of the problem is plain: 430,900 of the 592,800 substitute returns closed in fiscal year 2025, about 73 percent, drew no response from the person who owed the tax, and TIGTA’s report gives no indication that the agency’s outreach capacity is set to expand alongside the caseload.
The Filing Deadline Nobody Attaches to an SFR Notice
None of the notices described above come with a countdown attached, and that omission matters most for anyone who eventually files the original return an SFR was built without. The IRS caps how long a person has to claim a refund tied to a given tax year, and that clock keeps running whether or not a substitute return already closed the case.
The IRS Refund Recovery Kit places the 3-year refund deadline alongside a 13-page kit covering the notices and steps that follow a substitute-return correction.
Compare the current filing date against the 3-year refund deadline in The IRS Refund Recovery Kit.
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