You did not file your tax return. Maybe for one year. Maybe for several. You told yourself you would get to it, that you would catch up, that the problem was too complicated or the amount owed too large to face. And now you have received a notice telling you that the IRS has filed a return for you.
What the IRS filed bears almost no resemblance to what you actually owe. And the consequences of that misfiled return have already begun.
I'm Charles Rosselli, a Long Island tax attorney. The IRS Substitute for Return — called an SFR — is one of the most damaging things the IRS does to Nassau County and Suffolk County taxpayers who have not filed, because it creates a tax assessment that is almost always dramatically higher than what the taxpayer actually owes. By the time the SFR process is complete, the IRS has a legal judgment against you based on numbers it constructed without your input, your deductions, or your actual financial situation.
What the IRS Does When You Don't File
The IRS receives information about your income from third parties even when you do not file a return. Your employer files a W-2 reporting your wages. Your bank files 1099s reporting interest income. Your brokerage files 1099-Bs reporting investment transactions. Your clients file 1099-NECs reporting what they paid you for freelance or contract work. Your retirement account custodian files 1099-Rs reporting distributions.
All of this income is reported to the IRS by the people who paid it to you — whether or not you report it yourself on a tax return. The IRS's information return matching system knows what income you received. It knows you did not file. And it is authorized by law to create a return for you based on the information it has.
Under Internal Revenue Code Section 6020(b), when a taxpayer fails to file a required return, the IRS can prepare a substitute return on the taxpayer's behalf. The SFR is based entirely on income information the IRS has from third parties. It does not include any deductions you are entitled to claim. It does not include business expenses. It does not account for basis in assets you sold. It does not account for credits you could claim. It does not reflect your filing status if that would reduce your liability.
The IRS files you as single — regardless of your actual status — unless it has documentation to the contrary. It claims the standard deduction. That is all.
What the SFR Ignores
For Nassau County and Suffolk County taxpayers, what the IRS's SFR ignores can be enormous.
Business expenses. A Nassau County contractor, consultant, or self-employed professional who had $150,000 in gross income reported on 1099s may have had $80,000 in legitimate business expenses — tools, materials, vehicle costs, home office, professional fees, insurance, subcontractor payments. The SFR includes none of this. The assessed income is $150,000. The actual taxable income should have been $70,000. The SFR creates a tax liability roughly twice what was actually owed.
Investment basis. If you sold stock or other investments, the 1099-B reports the gross sales proceeds. The SFR includes those proceeds in income without accounting for your basis — what you originally paid for the investment. If you sold $80,000 of stock that you bought for $75,000, your actual gain is $5,000. The SFR may assess tax on $80,000.
Retirement account basis. Traditional IRA distributions are reported on 1099-Rs, but not every dollar of a traditional IRA distribution is taxable — non-deductible contributions create basis that reduces taxable income. The SFR does not account for this.
Filing status. The IRS files the SFR as single with one personal exemption. If you are married filing jointly, the filing status alone changes the tax brackets applied to your income. If you have dependents, the credits and deductions you could claim disappear in the SFR.
Itemized deductions. For Nassau County and Suffolk County homeowners paying $10,000, $15,000, $20,000 per year in property taxes, the mortgage interest deduction and state and local tax deductions may be substantial. The SFR uses only the standard deduction. Years of homeownership deductions disappear.
How the SFR Assessment Becomes a Legal Judgment
After preparing the SFR, the IRS sends you a Statutory Notice of Deficiency — the 90-day letter. This notice tells you that the IRS proposes to assess additional tax based on the SFR and gives you 90 days to petition the Tax Court to dispute the proposed assessment.
Most Nassau County and Suffolk County taxpayers who receive a 90-day letter do not know they have the right to go to Tax Court. They do not know that the proposed assessment is based on a return the IRS filed without their deductions. They do not know that the 90-day window is their last opportunity to challenge the assessment before it becomes final.
When the 90 days pass without a Tax Court petition, the IRS assesses the full SFR liability. It becomes a legal judgment. The IRS can now collect it — through levies, liens, garnishments — with the same authority it has to collect any other finally assessed tax debt.
The Balance Keeps Growing
A Substitute for Return that creates a $40,000 tax assessment does not stay at $40,000.
The Failure to File penalty — 5% per month, up to 25% of the balance — began accruing from the original due date of the return. The Failure to Pay penalty — 0.5% per month, up to 25% — is also running. Interest at the federal short-term rate plus 3%, compounded daily, has been running since the original due date.
By the time a Nassau County or Suffolk County taxpayer discovers an SFR assessment and the consequences begin to materialize, the original overstated assessment has grown substantially. An SFR filed for tax year 2021 with a $40,000 assessment is not $40,000 by the time the taxpayer is dealing with it in 2025. It is $50,000, $55,000, or more depending on the specific penalty and interest accrual.
And this is on an assessment that was already wrong to begin with — built on gross income with no deductions, no credits, and the least favorable filing status.
The Multiple Years Problem
Taxpayers who come to me with SFR issues rarely have just one year of unfiled returns. The pattern is typically several years — sometimes a decade or more — of unfiled returns, each of which may have an SFR filing and an outstanding assessment.
For a Nassau County or Suffolk County taxpayer who has five years of unfiled returns, each with an inflated SFR assessment, the aggregate balance may be staggering. Multiple assessments. Multiple penalty accruals. Multiple interest computations. And a federal tax lien — or multiple liens — filed in Nassau County or Suffolk County covering the aggregate balance.
The IRS is particularly aggressive about collection on SFR assessments because they represent taxpayers who have been completely non-compliant — not just unable to pay, but unwilling to engage with the filing system entirely.
What the SFR Does to Long Island Homeowners and Business Owners
For Nassau County and Suffolk County homeowners, a large SFR assessment means a large federal tax lien filed in the Nassau County or Suffolk County clerk's office — publicly, against their home, blocking any sale or refinancing.
For Long Island business owners with SFR assessments, the assessment generates a lien that attaches to business assets and may trigger Revenue Officer assignment to a case that is now characterized by both delinquent filing and delinquent payment.
The SFR assessment is not a starting point for negotiation in the same way that a correctly filed return's balance due might be. It is a legal judgment based on manufactured numbers that must be actively challenged through the correct legal process before it can be corrected.
Why Hiring a Long Island Tax Attorney Is Different From a CPA or National Tax Resolution Firm
The SFR situation requires both the tax compliance work of reconstructing accurate returns and the legal work of navigating the assessment challenge, the collection consequences, and potentially the Tax Court process.
A CPA or accountant can prepare the correct returns that should have been filed. This is genuinely important, and a CPA's contribution to the resolution is real. But they cannot challenge the SFR assessment in Tax Court, represent you in a Collection Due Process hearing, address the lien consequences, or develop the legal strategy for addressing multiple years of SFR assessments and their collection consequences. The SFR problem is part tax compliance and part legal enforcement — and the legal enforcement part requires an attorney.
A national tax resolution firm will tell you they handle SFR situations regularly. Their approach will be to get you filed and into a payment arrangement. The legal challenges available — Tax Court petitions, CDP hearings, assessment challenges — may not happen. And the nuanced, year-by-year analysis required to reconstruct accurate returns for multiple unfiled years and coordinate that with collection resolution will not happen at a call center.
A Long Island tax attorney who handles both the tax compliance and the collection consequences brings what SFR situations require:
- Attorney-client privilege. The full story of why returns were not filed, what the accurate income and expense picture looks like, what assets exist — all protected.
- Full legal authority. Tax Court petitions. CDP hearings. IRS Appeals. Assessment challenges. Every legal tool available requires an attorney to deploy effectively.
- Coordination of compliance and collection. Getting accurate returns filed, challenging the SFR assessment, addressing the lien, and managing collection action simultaneously — this requires someone who handles the full spectrum.
- Local knowledge. I know Nassau County and Suffolk County. I know what business expenses look like for a Long Island contractor, what deductions a Nassau County homeowner can claim, and what the accurate picture looks like for a Long Island taxpayer whose SFR assessment is based on gross income with no deductions.
The SFR Assessment Is Not What You Actually Owe
If the IRS has filed a Substitute for Return, the balance they say you owe almost certainly does not reflect your actual liability. Correcting that requires legal action — not avoidance.
The Tax Problem Law Center, a tax law firm, is based in Garden City and represents individuals and business owners throughout Nassau County, Suffolk County, and New York State facing SFR assessments, unfiled return situations, and all forms of IRS collection enforcement.
Contact our office to speak to a tax attorney near you. You will speak directly with Long Island tax attorney Charles Rosselli. Not a case manager. Not a call center. Let's figure out what the IRS has assessed versus what you actually owe, and what needs to happen next.