IRS Notice CP 287B
What IRS Notice CP 287B means
IRS Notice CP 287B is a notice tied to the account issue described in CP 287B. That sounds dry, but the practical point is simple: the IRS has a question, a proposed change, a balance, a refund issue, or a missing piece in its file. The notice number matters because the IRS uses that number to describe the type of problem it believes exists.
A taxpayer should not treat IRS Notice CP 287B like generic junk mail. The IRS says most notices deal with a specific issue and usually explain what action, if any, the taxpayer should take. The problem is that IRS letters are written for the IRS first and the reader second. They can be technically correct and still hard to follow. One paragraph might refer to a tax year. Another might mention a refund, balance, credit, penalty, or deadline. The job is to slow down and read the notice like evidence, not like a threat.
Most account notices are not dramatic, but they still need attention. IRS Notice CP 287B is tied to a tax year, a return, a payment, a penalty, a credit, or another account entry. The notice is the IRS version of a paper trail. Read it against the return and the transcript before deciding what it means.
Why you received IRS Notice CP 287B
You received IRS Notice CP 287B because the IRS believes something connected to the account issue described in CP 287B needs attention. The trigger could be a tax return entry, a payment posting, a missing form, a third-party income document, a refund adjustment, a credit review, a penalty, or an account mismatch. Sometimes the IRS changed the return during processing. Sometimes it compared the return to W-2s, 1099s, K-1s, brokerage records, payroll filings, or other data sent by someone else.
Do not assume the IRS is right. Do not assume it is wrong either. That is the boring answer, but it is the answer that saves people money. The notice has to be checked against the filed return, the taxpayer’s records, and the IRS transcript for the year involved.
A common example: a taxpayer moved, changed banks, made an estimated payment under the wrong Social Security number, or received a late Form 1099 after the return was filed. The IRS computer sees a mismatch and sends a notice. Another common version is even more ordinary. The taxpayer entered a number on the wrong line, forgot a schedule, or claimed a credit without attaching the support the IRS wanted to see.
Why IRS Notice CP 287B matters
IRS Notice CP 287B matters because the notice can affect money and future IRS contact. A small refund adjustment can turn into a bigger problem if the taxpayer ignores the explanation. A balance notice can pick up penalties and interest. A proposed adjustment can become harder to dispute if the taxpayer misses the response date. A collection notice can move the account closer to levy activity.
The most dangerous IRS notice is not always the one with the biggest number. It is the one the taxpayer misunderstands. Someone might pay a balance that should have been disputed. Someone else might ignore a correct notice because the IRS wording annoyed them. Neither approach is smart. The better move is to identify what the IRS changed, what records support or contradict the change, and what response path the notice allows.
For IRS Notice CP 287B, the taxpayer should look for the notice date, response deadline, tax year, form number, amount due or refund change, and contact instructions. If the notice includes a payment voucher, that does not automatically mean payment is the only option. If the notice says no response is needed, the taxpayer should still keep it with the return records. IRS notices have a way of becoming relevant months later.
Start with the account record
For IRS Notice CP 287B, the account transcript is often the best place to start because it shows what the IRS has actually posted. The notice gives the IRS explanation. The transcript shows the account activity. The return shows what the taxpayer reported. Those three records should tell one story. When they don’t, that gap is where the work begins.
How some people handle IRS Notice CP 287B
Some people handle IRS Notice CP 287B by creating a simple file before they do anything else. They keep the full notice, the envelope if timing matters, the filed return, wage and income forms, proof of payments, refund records, and any prior IRS letters for that tax year. Then they mark the deadline on a calendar. Not exciting. Very useful.
After that, they compare the IRS version of the facts to their own records. If the notice involves income, they check each W-2, 1099, brokerage statement, K-1, retirement form, and business income record. If it involves a payment, they look for bank withdrawals, Direct Pay confirmations, EFTPS receipts, canceled checks, payroll tax deposits, or estimated tax vouchers. If it involves a credit or dependent, they gather the records that prove eligibility rather than sending a vague explanation.
Some taxpayers agree with IRS Notice CP 287B after doing that review. Some partly agree and partly dispute it. Others respond because the IRS used incomplete information or posted something incorrectly. The right response depends on the notice language, the account transcript, the tax year, and the proof available. A short, clear response with the right documents is usually better than a long letter that explains everything except the actual issue.
Original documents should usually stay with the taxpayer unless the IRS specifically asks for them. Copies, labeled pages, and a mailing record are safer. If the notice allows faxing or online upload, the taxpayer should still save proof of what was sent and when.
How The Reed Corporation can help
The Reed Corporation can review IRS Notice CP 287B and translate it into plain English: what the IRS says, what year is involved, what deadline matters, and what records should be checked before anyone responds. A lot of notice work starts with that step. The letter feels less scary once the issue is named.
We can compare the notice to the filed return, review transcripts, check payment history, look for missing income forms, review credit eligibility, and organize a response package when the facts support one. For balance notices, we can help look at payment options and account status. For refund notices, we can help trace what changed. For examination or proposed adjustment notices, we can help pull the records into a cleaner response.
The point is not to argue with every IRS notice. The point is to avoid guessing. If IRS Notice CP 287B is correct, the taxpayer needs a practical plan. If it is wrong, the response should be specific enough for the IRS to fix the account. If it is partly right, the taxpayer may need to separate the agreed items from the disputed ones.
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What does IRS notice CP 287B actually mean?
A CP 287B means the IRS denied your Form 8716 election to use a tax year other than your required tax year, and it denied it for one specific reason: the deferral period you asked for runs longer than three months. That is the whole story behind the CP 287B. The IRS pulls the requested fiscal year off your Form 8716, measures the gap between the last day of that elected year and the last day of your required year, and if that gap is more than three months under IRC Section 444, the election dies and you get the CP 287B in the mail. Read the exact source language on the IRS page for this CP 287B at Understanding your CP287B Notice so you see it word for word, because the wording on a CP 287B is short and easy to misread.
Here is the mechanics. A partnership, an S corporation, or a personal service corporation has a required tax year. For an S corp or a PSC that required year is the calendar year ending December 31. For a partnership it is generally the tax year of the partners who own a majority interest. Section 444 gives those entities a narrow door to pick a different fiscal year anyway, but the door only opens three months wide. The deferral period is the count of months between the last day of the year you picked and the last day of the year the law requires. Pick a September 30 year end against a December 31 required year and your deferral period is three months, which is allowed. Pick June 30 against December 31 and your deferral period is six months, which is not, and that June 30 request is exactly the kind of thing that triggers a CP 287B. The IRS does not negotiate this gap. It either fits inside three months or the Form 8716 is rejected and a CP 287B goes out.
Worked example. Reed Holdings LLC, a new partnership owned by two calendar year individuals, filed Form 8716 in March 2026 asking for a June 30 fiscal year because the owners liked closing the books mid year. Their required tax year is December 31. The gap from June 30 back to December 31 is six months. Six is more than three, so the IRS denied the election and issued a CP 287B. The denied Form 8716 came in a separate envelope a week later. Nothing was wrong with the partnership itself. There was no tax due, no audit, and no problem with the entity formation. The only problem was the math on the deferral period, and on a CP 287B that math is the entire issue. Had they asked for September 30 instead, the same form would have sailed through and no CP 287B would exist.
We see this every year. Owners read CP 287B as a penalty notice or an audit flag and panic. It is neither. A CP 287B carries no balance due, no penalty, and no tax assessment. It is a denial of an election, full stop. To confirm what the underlying form was supposed to do, read the IRS overview at About Form 8716, which lays out the three month deferral ceiling in plain terms. The edge case worth knowing is that a CP 287B is different from a CP 287A, which the IRS sends when the Form 8716 arrived too late rather than because the deferral period was too long. If you got the late filing version instead, compare your facts against Understanding your CP287A notice. If a CP 287B has you unsure which fiscal year you are now stuck with, our tax compliance team reads the notice and the underlying Form 8716 together so you know exactly where the entity stands. Start at our new client inquiry page and send us the CP 287B and the denied form so we can confirm the year in one sitting.
Why did I get a CP 287B notice from the IRS?
You got a CP 287B because you filed a Form 8716 asking for a fiscal year, and the deferral period on that requested year was more than three months. That single fact is what produces a CP 287B. The IRS did not decide your business was run badly or that your numbers were off. It looked at the year end you wrote on Form 8716, measured the months back to your required tax year, found more than three, and mailed the CP 287B as the denial. If you want to confirm the rule yourself, the official write up for this CP 287B sits at Understanding your CP287B Notice, and it is worth reading because a CP 287B never explains the three month math in much depth.
Walk through why this happens so often. Form 8716 exists because of IRC Section 444, which lets a partnership, an S corporation, or a personal service corporation keep a fiscal year that differs from the required one. The catch is the three month ceiling on the deferral period. People file the form wanting a year end that fits their cash cycle, their busy season, or an old habit from a prior entity, and they pick something like June 30 or March 31 without checking the gap. A March 31 year end against a December 31 required year is a nine month deferral period. The form gets denied and out goes the CP 287B. The reason on a CP 287B is almost always that simple. The requested deferral was too wide, so the IRS rejected the Form 8716. Read the rules behind the form at About Form 8716 before you assume something more complicated went wrong, because in the overwhelming majority of cases a CP 287B is purely about the length of the deferral.
Worked example with real dates. Acme Design PSC, a personal service corporation, filed Form 8716 in April 2026 requesting an April 30 fiscal year so the firm could close after its spring rush. The required tax year for a PSC is the calendar year ending December 31. From April 30 back to December 31 is eight months. The election was denied and a CP 287B arrived in May, followed by the marked up Form 8716 a few days later. The firm did nothing wrong operationally. Its bookkeeping was clean and its prior returns were filed on time. It just asked for a deferral the statute does not allow, and a CP 287B is the predictable result of that ask. The fix was not to argue. The fix was to choose a year end that the three month rule actually permits, such as October 31, which is a two month deferral.
We see this every year, usually with brand new entities whose owners assumed any fiscal year was on the table. The mistake is treating Section 444 like a free choice when it is a tightly capped one. New owners coming out of a partnership with a fiscal year often expect their S corp to keep the same year, then a CP 287B lands and surprises them. The edge case to watch: even a deferral period that fits inside three months can require a Section 7519 required payment, which is a separate deposit that has nothing to do with whether you got a CP 287B. A CP 287B only tells you the election was denied for length, not that you owe a payment, and the two issues get confused constantly. If you are trying to figure out why your specific Form 8716 drew a CP 287B and what fiscal year you are left with, our corporate returns team traces the denial back to the exact line on the form and tells you which compliant year ends remain. Reach us through the new client inquiry page and we will look at the CP 287B with you and map a year that survives.
Is there a deadline or amount due on a CP 287B?
No, a CP 287B has no payment deadline and no amount due, because a CP 287B is a denial of a tax year election, not a bill. This is the single most reassuring fact about a CP 287B and the one that gets missed most. There is no balance, no penalty line, and no interest running. The IRS denied your Form 8716 for a deferral period over three months, told you so on the CP 287B, and that is the end of the money question. You can verify the no balance nature of this notice against the IRS master list at Understanding your IRS notice or letter, where a CP 287B is described as an election denial rather than a collection notice. Nobody is coming after a payment because of a CP 287B.
That said, a CP 287B does change one deadline indirectly. Because your requested fiscal year was denied, your business now files its annual return at the end of your required tax year, which for an S corporation or personal service corporation is December 31. So even though the CP 287B itself sets no due date, it resets which filing calendar you are on. An S corp that hoped for a June 30 year and got a CP 287B is back on the calendar year. That means a Form 1120-S due by March 15, 2027 for the 2026 tax year, not whatever fiscal deadline the owners had pencilled in. A partnership in the same spot files Form 1065 by that same March 15 calendar year deadline. The CP 287B does not bill you, but it does tell you which return cycle now governs the entity, and that cycle carries its own real deadlines with real penalties if you miss them.
Worked example. Bridge Partners LLC filed Form 8716 in February 2026 for an August 31 year end. Required year is December 31, deferral period is four months, election denied, CP 287B issued. The partnership owed zero dollars on the CP 287B. What changed was the return deadline. Instead of a fiscal year Form 1065 keyed to August 31, the partnership now files its 2026 Form 1065 by March 15, 2027 on the calendar year. No check went to the IRS because of the CP 287B. The only real consequence was the date on the next return, and the only money risk is the late filing penalty that attaches if the partnership treats the CP 287B as something it can simply file away and forget. Put differently, a CP 287B moves a deadline without ever mailing a bill, and the dollars only show up later if that moved deadline gets missed. The smart read of a CP 287B is to treat the absence of an amount due as a reason to act, not a reason to relax, because the next return is now keyed to a date the entity may not have planned around.
We see this every year. A client calls in a panic asking how much they owe on a CP 287B, and the answer is nothing. The common mistake on the other side is the opposite. Owners relax so completely after seeing no balance that they forget the CP 287B quietly moved their filing deadline, and then they miss the calendar year return due date and pick up a late filing penalty that the CP 287B never charged in the first place. The partnership late filing penalty runs per partner per month, so even a short delay gets expensive fast. The edge case: if a Section 7519 required payment was already deposited under an earlier valid election, a denial can affect how that deposit is handled, which is worth a closer look before you assume everything nets to zero. If you want certainty on which return date now applies after a CP 287B, our tax compliance team maps the new deadline so nothing slips. Send the CP 287B through our new client inquiry page and we will set the calendar in writing.
How do I respond to or dispute a CP 287B notice?
You respond to a CP 287B by deciding which fiscal year you can legally use, then either accepting your required tax year or refiling Form 8716 with a year end whose deferral period is three months or less. There is no formal appeal box to check on a CP 287B, because the notice is a correct application of the IRC Section 444 three month rule rather than a judgment call you can argue. If your original Form 8716 truly asked for more than three months of deferral, the CP 287B is right and the path forward is to pick a year that fits. Confirm the form rules first at About Form 8716 and the notice language at Understanding your CP287B Notice so you respond to what the CP 287B actually says rather than what you feared it said.
Here is the practical sequence. First, pull the denied Form 8716 the IRS mailed separately and read the year end you actually requested. Second, measure the deferral period from that year end back to your required tax year. Third, ask whether a compliant year end works for the business. An S corp or PSC against a December 31 required year can elect September 30, October 31, or November 30, because those are three months, two months, and one month of deferral. If one of those fits your cash cycle, file a fresh Form 8716 by the deadline for the new election and you are done. If none of them work, accept the calendar year and file accordingly. The CP 287B does not need a rebuttal letter. It needs a decision about the year, and that decision drives every return the entity files afterward.
When is a dispute genuinely warranted? Only when the IRS misread your Form 8716, for example if you actually requested September 30, a clean three month deferral, but the CP 287B treats it as more. In that narrow case you call the number printed at the top of the CP 287B and explain the discrepancy, with the denied form in hand. Worked example: Linden Studio PSC requested September 30 on Form 8716, a three month deferral that is allowed, yet received a CP 287B. That looks like an IRS keying error, so the move is to call, reference the September 30 election, and ask them to correct it rather than refile. The call takes one conversation when you have the denied form and a clear deferral count ready. Most CP 287B notices are not this. Most are correct denials of a too long deferral, and chasing a dispute on those just burns the clock you need for the real fix. Before you call about any CP 287B, write down the year end you requested and the required year, count the months between them, and only pick up the phone if that count is three or fewer yet the CP 287B still denied you. That one check separates a real keying error from a CP 287B that is simply enforcing the statute.
We see this every year. The mistake is firing off an angry response to a CP 287B that is simply right, which wastes weeks while the filing clock runs. The smarter play is to treat the CP 287B as a prompt to choose a compliant fiscal year fast. Because a denied election can also tangle with a Section 7519 required payment, this is a spot where a wrong move compounds, and a refiled Form 8716 with a fresh required payment deposit has to line up cleanly. Our IRS notice assistance team handles the call to the IRS and the refile decision in one pass, and for the corporate filing that follows our corporate returns team takes it from there. Start with the new client inquiry page and attach the CP 287B along with the denied Form 8716 so we can tell within minutes whether you dispute or refile.
What happens if I ignore a CP 287B notice?
If you ignore a CP 287B, the immediate consequence is mild but the downstream one can bite. A CP 287B carries no balance, so ignoring it costs you nothing on the spot. The real risk is that the CP 287B already told you your fiscal year election was denied and that you must file on your required tax year, usually the calendar year ending December 31. Ignore that instruction and you keep operating as if you have a fiscal year you do not legally have, which sets up a late or wrong return down the line. The CP 287B is not a threat. It is a course correction, and the cost of ignoring a CP 287B is paid later in penalties on the return, not now. The IRS notice index at Understanding your IRS notice or letter backs up that a CP 287B is informational rather than a collection action, which is exactly why it is so easy to set aside and forget.
Trace the chain. Say an S corporation got a CP 287B denying its requested June 30 year and did nothing. The owners kept thinking June 30. When tax season came, they aimed to file a Form 1120-S keyed to a fiscal year that no longer exists in the eyes of the IRS. The correct return was a calendar year 2026 Form 1120-S due March 15, 2027. By ignoring the CP 287B, they blew past that date. Now they face a late filing penalty for an S corporation, which runs per shareholder per month and adds up quickly. None of that penalty came from the CP 287B itself. It came from ignoring what the CP 287B told them about the calendar. The notice handed them the right deadline and they walked past it.
Worked example with numbers. Cedar Ridge S Corp has four shareholders. It ignored its CP 287B, filed its calendar year 2026 return three months late, and the S corp late filing penalty applied at the standard monthly rate per shareholder. Four shareholders times three months times the per shareholder monthly amount produced a four figure penalty that a single act of reading the CP 287B would have prevented. The CP 287B had warned them which year to file. They just did not act on it, and the penalty landed on the late return, not on the notice. Worse, a penalty like that usually arrives alongside a separate balance due notice, so the quiet CP 287B turns into a loud collection letter months later.
We see this every year. The mistake is filing a CP 287B in a drawer because it has no amount due and assuming silence ends the matter. It does not. A CP 287B quietly hands you a new filing deadline, and the penalty for missing that deadline is very real. The edge case: if you ignore a CP 287B and later try to fix the year, you may also have to untangle a Section 7519 required payment or a short period return, which is more work than reacting to the CP 287B on day one. A short period return can compress a full year of income into a stub period and shift income into a single tax year in a way that raises the rate you pay, so ignoring a CP 287B can quietly cost real tax on top of any penalty. The cheapest possible response to a CP 287B is to read it the day it arrives and reset the filing year before anything else moves. Confirm the underlying form rules at About Form 8716 if you want to see how the year you lost was supposed to work. If a CP 287B is sitting unread, our tax compliance team sets the correct filing calendar before any deadline passes, and our IRS notice assistance team deals with the IRS directly if a return already slipped. Send the CP 287B through our new client inquiry page and we will keep it from turning into a penalty.