IRS Forms

Form 1128 – How to Adopt or Change a Tax Year

Learn when to file IRS Form 1128 to adopt, change, or retain a tax year, automatic vs nonautomatic procedures, fees, deadlines, and 9100 relief tips. (159)

Accountably Editorial Team 15 min read Feb 17, 2026 Updated Feb 17, 2026
A partner called me in early February, voice tight. “We aligned our subsidiary’s books to the parent in December, but we still haven’t filed Form 1128. Are we already late?”

If you have ever tried to change a tax year in the middle of busy season, you know that sinking feeling. The mechanics are simple on paper, but the clock starts ticking the day your short period closes. Miss a step or a date, and you are chasing relief instead of moving forward.

You are here because you want a clean, defensible change in tax year without surprises. In this guide, I will show you exactly how to use Form 1128, when automatic approval applies, when a ruling is required, how 52–53‑week years work, and what to attach so reviewers say yes on the first pass. I will also flag the current user fees and mailing addresses so you are not hunting through old PDFs.

Key Takeaways

  • Form 1128 is the IRS application to adopt, change, or keep your annual tax year, including a 52–53‑week year. Partnerships, S corporations, PSCs, trusts, and corporations use it.
  • File by the unextended due date of the first affected return for ruling requests, or by the short‑period return due date for automatic changes, unless a specific procedure says otherwise.
  • Use Part II for automatic approval if you meet a revenue procedure, for example Rev. Proc. 2006‑45 for corporations or 2006‑46 for pass‑throughs and PSCs. Use Part III and pay a user fee if you need an IRS ruling.
  • The 48‑month prior‑change bar, examination status, and other disqualifiers can block automatic approval. Verify eligibility before you rely on Part II.
  • As of February 17, 2026, the user fee for a Form 1128 ruling request is typically 5,750, and 6,100 for certain 9100 relief extensions, paid through pay.gov. Always confirm the current schedule.

What Form 1128 Does, In Plain English

Form 1128 is not a line on your income tax return. It is a separate application that either gets you automatic consent or a formal ruling to adopt, change, or retain a tax year. That includes shifting from calendar to fiscal, vice versa, or electing a 52–53‑week year that ends on the same weekday each year. Partnerships, S corporations, PSCs, trusts, and corporations all use this path when a change requires IRS consent.

If you qualify for automatic approval, you complete Part II and attach the required statements. If you do not, you prepare a ruling request in Part III, explain your facts and business purpose, and pay the user fee to the IRS National Office.

Who Actually Needs To File

You need Form 1128 when you are adopting a first tax year that requires consent, changing an existing year, retaining a year that now needs consent, or electing a 52–53‑week year. Common triggers include:

  • Aligning a subsidiary to a parent’s fiscal year.
  • Moving an S corporation to a permitted year or confirming a required year.
  • Demonstrating a natural business year using the 25 percent gross‑receipts test with 47 months of data.
  • Cleaning up after a merger that created short periods and misaligned closes.

The rules that control automatic approval are in IRS revenue procedures. Corporations generally look to Rev. Proc. 2006‑45. Partnerships, S corporations, PSCs, and many trusts look to Rev. Proc. 2006‑46. Certain exempt organizations follow older procedures, and individuals have their own path. The IRS still treats those 2006 procedures as the operative automatic‑approval frameworks, with later clarifications.

Automatic Approval Or Ruling, Start Here

Think of eligibility as a flowchart.

  • If your facts match an automatic‑approval procedure for your entity type, complete Part II, meet the deadline tied to the short‑period return, attach what is required, and stop. No user fee.
  • If not, prepare a Part III ruling request, pay the fee, and mail it to the IRS National Office at Ben Franklin Station, Washington, DC. The IRS will acknowledge receipt, and you can follow up with the Control Clerk if you hear nothing within 90 days.

A few fast screens can save you from a misfile:

  • Did you change your tax year within the prior 48 months, and no exception applies? That generally blocks automatic approval.
  • Is your annual accounting period under IRS examination or in litigation for the affected year? That can also block automatic consent without special steps.
  • Are you trying to fix a late filing? Relief may be available, but timing matters. Up to 90 days late typically requires reasonable, good‑faith cause. Over 90 days demands unusual, compelling circumstances.

Why Timelines Matter

For ruling requests, the filing deadline is the original due date, without extensions, of the federal return for the first effective year. You cannot file earlier than the day after that first effective year ends. For automatic approvals tied to a short period, the filing deadline tracks the due date of the short‑period return, and extensions usually apply. Follow the procedure that matches your fact pattern, and do not mix addresses for Part II and Part III or you will delay processing.

Small operational note from experience, your reviewers will move faster if your workpapers are standardized, named clearly, and include the 47‑month gross‑receipts schedule where applicable. That single attachment is often what saves a week of back‑and‑forth during peak season.

Do You Qualify For Automatic Approval Or Do You Need A Ruling

Map Your Entity To The Right Procedure

  • Corporations, look to Rev. Proc. 2006‑45, which is the exclusive automatic‑approval procedure for in‑scope corporate changes, including 52–53‑week years, subject to exceptions.
  • Partnerships, S corporations, PSCs, and many trusts, look to Rev. Proc. 2006‑46 for adopting, changing, or retaining a tax year.
  • Certain exempt organizations and individuals have separate automatic pathways documented in the Form 1128 instructions and related procedures.

If your facts do not fit the automatic track, you shift to a ruling request under Part III and pay the user fee to the Associate Chief Counsel, Income Tax and Accounting.

Common Automatic‑Approval Roadblocks

  • The 48‑month prior‑change bar, unless a listed exception applies.
  • Being under IRS examination, in Appeals, or in court with the annual accounting period at issue, unless special consent is obtained.
  • Failing an entity‑specific test, for example, a corporation with an interest in a pass‑through entity at the end of the short period under certain conditions.

When any of these apply, expect to prepare Part III with a complete statement of facts, legal analysis, and supporting schedules.

Natural Business Year And The 25 Percent Test

If you claim a natural business year, you will attach a 47‑month gross‑receipts schedule to demonstrate that at least 25 percent of receipts fall in the last two months of the requested year for each of the four most recent 12‑month periods. Build this early, reconcile it to your GL, and include notes explaining any outliers such as a one‑off contract. The IRS expects that schedule with Form 1128 in automatic and ruling contexts where the test applies.

52–53‑Week Years, How They Work

A 52–53‑week year ends on the same weekday every year, and for filing purposes is treated as ending in a designated calendar month. You indicate the month and the week‑ending rule in Part I, and you either use automatic approval if eligible or request a ruling in Part III. Expect a year length of 364 or 371 days, depending on where the extra week lands.

Special Populations And Edge Cases

  • Exempt organizations that changed solely for elective payment Form 990‑T purposes have a separate 2025 procedure and may not need Form 1128. They change by filing a timely Form 990‑T for the first effective year and include a statement, provided they are an in‑scope entity under that IRB. Verify your facts before you assume 1128 applies.
  • S corporation conversions sometimes require coordinating Form 1128 with Form 2553 if the change precedes an S election. The IRS has special routing notes for these to avoid delays.

Practical Tip, Prove Control And Continuity

When you file under automatic approval, pretend a reviewer will audit your file tomorrow. Use standardized naming, include ownership schedules, and cross‑reference any related‑entity concurrent changes. If you are pursuing a ruling, add a concise cover memo that lists every enclosure, the requested year‑end, the short‑period dates, the applicable revenue procedure, and your user fee confirmation number. That single page reduces routing questions and speeds acknowledgment.

Accountably note, on our accounting operations side we build the 47‑month schedule from your source ledger, validate against bank activity where needed, and package the short‑period return and Form 1128 with consistent file logic. The goal is simple, fewer review cycles and predictable turnaround during peak deadlines.

Deadlines And Filing Windows You Cannot Miss

I have seen excellent applications sink because the date math was wrong. Before you touch the form, anchor your calendar to two clocks, the first effective year’s original return due date for ruling requests, and the short‑period return due date for automatic approvals.

  • For ruling requests, file Form 1128 by the original due date of the federal return for the first year the change will take effect, no extensions. You can only file after the first effective year ends, so plan your prep window.
  • For automatic approvals, file by the due date of the short‑period return that implements the change, extensions usually apply for this return.
  • If you are up to 90 days late, relief is possible with a credible reasonable cause statement. If more than 90 days late, the bar is higher, you must show unusual, compelling circumstances.

Quick example, your partnership wants to change to a September 30 year. The short period runs January 1 through September 30. File Form 1128 under automatic approval with the short‑period return due in mid January, extensions available for that short period. If your facts do not fit automatic rules, the ruling request is due by the original due date of the first full year on the new cycle, and you still cannot mail it until the first effective year has closed.

Where To File And Fees

Automatic approvals and ruling requests do not go to the same place. That single detail causes too many reroutes.

  • Automatic approval, attach Form 1128 to the applicable return, usually the short‑period return, and file at your normal IRS service center. Add “Attention, Entity Control” on top.
  • Ruling request, send Part III with all exhibits and the user fee to the IRS National Office, Associate Chief Counsel, Income Tax and Accounting. As of February 17, 2026, user fees and payment methods are posted in the current instructions and the annual user fee procedure. Always confirm the latest amount before you submit.

Here is a compact routing view you can share with your team.

Item Automatic Approval (Part II) Ruling Request (Part III)
Deadline basis Short‑period return due date, extensions usually allowed Original due date of first effective year’s return, no extensions
Where to file Your normal service center, attach to return IRS National Office, Associate Chief Counsel, IT&A
User fee None Required, check current IRS schedule
Earliest you can file When short‑period return is ready Day after the first effective year ends
Typical attachments Short‑period return, required statements, 47‑month receipts if needed Statement of facts, legal analysis, ownership schedules, receipts schedules, fee proof

Tip from the trenches, put a one‑page routing sheet on top that lists the requested year‑end, short‑period dates, your eligibility path, and a checklist of enclosures. Reviewers love it.

Choosing Your New Tax Year, Required Or Elective, Plus 52–53

Start with what the Code demands for your entity.

  • Required year, you do not pick freely. Examples include consolidated groups and certain foreign‑owned corporations. If you are locked in, your filing is about consent or confirmation, not choice.
  • Elective year, you often can select a fiscal year that fits your operations, if you meet a permitted year test or obtain consent.
  • 52–53‑week year, you close on the same weekday every year, and for filing purposes it is treated as ending in a named month. Expect 364 or 371 days depending on the extra week.

Natural business year, when you rely on the 25 percent test, prepare a 47‑month gross receipts schedule. I like to pull this straight from the GL, footnote major one‑offs, and reconcile to filed returns. That avoids the back‑and‑forth later.

Complete Form 1128 Step By Step

Part I, The Setup

  • Legal name, EIN or “Applied For,” address, and the IRS service center you use.
  • Contact person with direct phone and email, pick someone who can answer follow‑ups fast.
  • Check the applicant type, corporation, partnership, S corporation, PSC, trust, or other.
  • Describe the current tax year and the requested tax year, include 52–53 wording if relevant.

Sign the form. If an authorized representative will sign or discuss, attach Form 2848.

Part II, Automatic Approval Path

  • Pick the correct revenue procedure section for your entity.
  • Answer all yes or no questions. If a single required item is no, you are likely off the automatic track.
  • Attach every required statement, for example the 47‑month receipts for the 25 percent test, or ownership details for an ownership tax year.
  • File with or attach to the short‑period return when instructed.

Part III, Ruling Request Path

  • Write a clear statement of facts. Include the operational reason for the change, how it produces a better match of income and expense, and why automatic rules do not apply.
  • Include schedules, receipts computations, ownership tables, and any required concurrent‑change confirmations.
  • Add a concise legal analysis that cites the right procedure. Keep it plain English, but accurate.
  • Include the user fee, follow the current instructions for payment method.
  • Mail to the National Office. Keep proof of mailing and a full digital set.

Documents To Include With Form 1128

Think like a reviewer. If you needed to sign off in one pass, what would you want to see?

  • Short‑period return or statement, when the procedure requires it.
  • 47‑month gross receipts schedule, if you claim a natural business year.
  • Ownership schedules, list each owner, percentage, and identifying number.
  • Statements confirming concurrent changes for related entities, when required.
  • Form 2848 if someone other than an officer or trustee will communicate.
  • For rulings, a cover memo, detailed statement of facts, legal analysis, and the user fee evidence.

Accountably process note, our teams build a single PDF portfolio that bookmarks each exhibit, then we mirror the structure in your DMS so your partner can review in under fifteen minutes. The point is simple, fewer revisions, faster yes.

Additional Ruling Materials And How To Package Them

When you move into Part III, the quality of your package matters.

  • Start with a one‑page cover letter that lists the taxpayer, EIN, present year, requested year, short‑period dates, and every enclosure.
  • Add your statement of facts, include the business purpose, seasonality or contract cycle, system constraints, or consolidation reasons.
  • Insert your legal basis, cite the governing Code and procedure sections that support consent.
  • Include data exhibits, 47‑month receipts if you claim a natural business year, segment notes if there are large spikes, and a tie‑out to your GL or filed returns.
  • If the contact is not an officer or trustee, attach Form 2848.
  • Close with your user fee payment proof and a contact line for follow‑up.

Pro tip, label every file with a clean convention, for example 1128_TaxpayerName_ExhibitA_Receipts.pdf. Reviewers open these fast when the names make sense.

Common Mistakes And How To Avoid Them

I keep a running list on a sticky note during busy season.

  • Picking the wrong path, trying Part II when you do not meet automatic rules. Fix, run a quick eligibility screen first, including the 48‑month change rule and exam status.
  • Missing the deadline math. Fix, set calendar holds the day you decide to change, not after year‑end.
  • Skipping attachments. Fix, use a checklist, short‑period return, receipts schedule, ownership tables, Form 2848 if an agent signs.
  • Mailing to the wrong place. Fix, service center for automatic, National Office for rulings.
  • Weak reasonable‑cause statements on late filings. Fix, be specific, include dates, who did what, what controls now exist to prevent a repeat.

Partnerships And S Corporations, Special Rules You Should Know

Most pass‑throughs live in Rev. Proc. 2006‑46 for automatic approval. Anchor your work in Part II, Section B of Form 1128.

  • Natural business year, attach the 47‑month receipts schedule and show the 25 percent test.
  • Ownership tax year, if more than 50 percent owners share a year, document it and align accordingly.
  • Under exam or prior change within 48 months, automatic approval is generally off the table without an exception.
  • If automatic rules do not fit, prepare a Part III ruling request, include ownership facts and any concurrent changes for related entities.

Micro‑example, a multi‑member LLC with retail seasonality moves to a February close. The receipts schedule shows that at least 25 percent of total receipts fall in December and January for each of the last four years. The file includes reconciliations and a clean short‑period return. That is a textbook automatic approval package.

C Corporations And PSCs, What Changes And What Does Not

Corporations typically start with Rev. Proc. 2006‑45 in Part II, Section A. PSCs often use the pass‑through procedure in 2006‑46, but they also face special ownership limits.

  • C corporations, confirm you are not under examination for the affected period, check the 48‑month bar, and answer all yes or no items cleanly.
  • PSCs, document the ownership tax year, the month in which individuals who own more than 50 percent by value also performed services during the prior year. Include identities, ownership percentages, and dates.
  • If automatic rules do not fit or you changed within 48 months, you will prepare a Part III ruling request and include the user fee.

User Fee Triggers, When You Will Pay

You pay a user fee when you file Form 1128 under Part III for non‑automatic consent. No fee applies for automatic approval filings under Part II. Confirm the current amount in the latest instructions and the annual user fee procedure, and follow the posted payment channel. If you omit the fee on a ruling request, the IRS will treat the package as incomplete and you will lose time.

Trusts And Tax‑Exempt Organizations, A Quick Pass

Trusts generally follow Rev. Proc. 2006‑46 under Part II, Section B for automatic approval if eligible. If they have changed within 48 months or are under examination, they will not qualify for automatic approval unless a specific exception applies. Exempt organizations sometimes have special procedures, and in a few narrow cases they can change a taxable year by filing a timely return with a statement. When in doubt, check the current instructions, because exempt rules change more often than corporate ones.

52–53‑Week Years, How To Describe Them On The Form

A 52–53‑week year lets you close on the same weekday, every time. On Form 1128, make three things crystal clear in Part I.

  • State that you are adopting or changing to a 52–53‑week year.
  • Name the calendar month that will be treated as the year‑end for filing.
  • Describe the week‑ending rule, for example, the Saturday closest to the last day of the month.

If you qualify for automatic approval under the correct procedure, file under Part II and attach any required statements. If not, move to Part III with a full ruling request and the user fee.

Mergers, Acquisitions, And Concurrent Changes

When two entities combine, your reporting cadence may reset. This is where concurrent changes protect you from mismatched short periods.

  • Identify the surviving entity’s required or permitted year.
  • Confirm whether concurrent changes are required for subsidiaries or related pass‑throughs.
  • If automatic approval applies, attach Form 1128 to the short‑period return and file at the service center.
  • If the change will be reviewed as a ruling, file Part III with facts that explain the transaction, the business purpose, and the need to align the year‑ends.

Quick story, we supported a roll‑up of three calendar‑year partnerships into a fiscal parent. The team prepared three concurrent 1128s, one receipts schedule, and a shared cover letter. Everything used the same naming logic. The IRS acknowledged the package quickly and the returns went out on time.

Aligning A Subsidiary’s Year To Its Parent’s

This is one of the most common uses of Form 1128.

  • Identify the parent’s year, name the requested subsidiary year, and set the short‑period dates.
  • Check automatic approval under the corporate procedure, including the 25 percent test if you are relying on a natural business year, the 48‑month rule, and exam status.
  • Prepare ownership schedules and any concurrent change confirmations.
  • If automatic approval does not apply, prepare a Part III ruling with a clear business case. Include the user fee and all exhibits.

Late Filings And Relief Options

Life happens, even to well run teams. Relief exists, but it is not automatic.

  • Within 90 days late, request consideration based on reasonable, good‑faith actions and no prejudice to the government. Be specific. Include dates, names, and what controls failed.
  • Over 90 days late, you must show unusual, compelling circumstances. Document everything and expect a tougher review.
  • If you are under examination or the period is in Appeals or court, automatic approval is usually off the table. Prepare a Part III ruling request with a full explanation and the user fee.

FAQs

What is Form 1128 for

You use Form 1128 to adopt, change, or retain your tax year, including electing a 52–53‑week year. If you qualify for automatic approval under the correct procedure, file Part II. If not, request a ruling in Part III and pay the user fee. Always follow the deadline tied to your fact pattern.

What is the difference between Form 1128 and Form 8716

Form 1128 is consent to change a tax year. Form 8716 is the election to use a fiscal year under section 444 for certain entities. They serve different purposes, have different timing rules, and carry different consequences. Do not mix them.

How much is the user fee for a Form 1128 ruling

User fees change. As of February 17, 2026, check the current Form 1128 instructions and the annual IRS user fee procedure for the exact amount and payment channel. If you file under automatic approval, no fee applies.

Can I e‑file Form 1128

Some filings are paper only, and routing depends on whether you are under automatic approval or requesting a ruling. Check the current instructions before you assume an electronic path exists for your fact pattern.

What is the deadline if I am changing to a 52–53‑week year

The same rules apply. If automatic approval fits, file by the due date of the short‑period return that implements the change. If you need a ruling, file by the original due date of the first effective year’s return, and you cannot submit until that first effective year has ended.

Final Checklist

  • Confirm the correct path, automatic or ruling.
  • Map your deadline to the right clock, short‑period due date or first effective year’s original due date.
  • Build clean workpapers, short‑period return, 47‑month receipts, ownership tables, and cover memo.
  • Route to the correct place, service center for automatic, National Office for rulings.
  • If late, write a specific, dated reasonable‑cause statement, and be ready to show new controls.

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