The Form 3115 Accounting Method Change: Filing It and Timing the Section 481(a) Adjustment

The timing rule that makes a Form 3115 accounting method change worth your attention sits in one sentence of Rev. Proc. 2015-13, section 7.03(1). A catch-up that favors the taxpayer, called a negative Section 481(a) adjustment, is taken into account in a single year. A catch-up that favors the government, a positive adjustment, is spread over four. The procedure hands the benefit over at once and takes the cost slowly.

If you have a client depreciating a building component over 39 years that a study says belongs in 5, the catch-up is a whole deduction this year, not one quarter of an income pickup for four years. Which side of section 7.03(1) the facts land on is the research question, and it comes before any line of the form.

Why does a Form 3115 accounting method change need the Commissioner's consent?

Because the regulation says so, whether or not the current method is defensible. Treas. Reg. 1.446-1(e)(2)(i) reads:

Except as otherwise expressly provided in chapter 1 of the Code and the regulations thereunder, a taxpayer who changes the method of accounting employed in keeping his books shall, before computing his income upon such new method for purposes of taxation, secure the consent of the Commissioner. Consent must be secured whether or not such method is proper or is permitted under the Internal Revenue Code or the regulations thereunder.

That second sentence catches practitioners off guard: a client on a flatly impermissible method cannot simply start doing it right. The switch still requires consent, and Section 446(e) is the statutory hook.

What qualifies is defined in Treas. Reg. 1.446-1(e)(2)(ii)(a):

A change in the method of accounting includes a change in the overall plan of accounting for gross income or deductions or a change in the treatment of any material item used in such overall plan. Although a method of accounting may exist under this definition without the necessity of a pattern of consistent treatment of an item, in most instances a method of accounting is not established for an item without such consistent treatment. A material item is any item that involves the proper time for the inclusion of the item in income or the taking of a deduction.

An overall plan is cash versus accrual. A material item has nothing to do with dollar size: it is any item whose treatment turns on when income goes in or a deduction comes out. Move an expense from year 2 to year 1 and you are in method territory. Reclassify something deducted as salary that was really a dividend and you are not: that question is character, not timing.

The next paragraph, 1.446-1(e)(2)(ii)(b), draws the line from the other direction: a change in method of accounting "does not include correction of mathematical or posting errors, or errors in the computation of tax liability." A transposed number is an amended return; a consistent timing treatment is a Form 3115. Practitioners often put that line at a count of consecutive returns; the regulation does not. It turns on consistent treatment of a material item, while allowing that a method can exist without it.

What is the Section 481(a) adjustment and why does it exist?

Changing methods creates a seam: amounts counted in a prior year under the old method belong in a later year under the new one, or the reverse, and without a correction an item is taxed twice or escapes. Section 481 closes it. Treas. Reg. 1.481-1(a)(1) states the purpose plainly: in computing taxable income for the year of the change, "there shall be taken into account those adjustments which are determined to be necessary solely by reason of such change in order to prevent amounts from being duplicated or omitted." The same paragraph fixes the year of the change as the first taxable year computed under the new method.

The adjustment is one cumulative number: the difference between where the client's tax accounting stands and where it would stand had the new method always been used. Negative means the client overstated income and is owed a catch-up deduction. Positive means the client understated and owes a pickup. Either way the adjustment begins on the return for the year of change. The prior years the adjustment covers are not reopened, so three years on a wrong method do not mean three amended returns.

How long do you have to take the adjustment into account?

Rev. Proc. 2015-13, section 3.16, defines the window. The "Section 481(a) adjustment period" is "the applicable number of taxable years that the taxpayer takes into account the Section 481(a) adjustment required as a result of the change in method of accounting, beginning with the year of change." Section 7.03(1) sets the default, subject to the procedure itself, the List of Automatic Changes, a letter ruling, or other guidance published in the Internal Revenue Bulletin:

the Section 481(a) adjustment period is one taxable year (year of change) for a negative Section 481(a) adjustment and four taxable years (year of change and next three taxable years) for a positive Section 481(a) adjustment.

A positive adjustment is taken into account ratably, one quarter per year; the whole negative adjustment lands in the year of change.

Treat the four years as a default, not a rule. Section 7.03(3) shortens the period in several cases. Under 7.03(3)(c) a taxpayer may elect a one-year period for a positive adjustment "that is less than $50,000," by completing the appropriate line on the Form 3115 and taking the entire adjustment into the year of change. Cooperatives and taxpayers under examination have their own shortened periods. Read section 7.03 against the facts before quoting four.

Which procedure applies, automatic or non-automatic?

An automatic change is one the IRS has pre-approved in the List of Automatic Changes, a separate revenue procedure reissued periodically. Each change on that list carries a designated automatic accounting method change number, the DCN, and section 6.02(3) requires that the taxpayer "include the designated automatic accounting method change number [. . .] on the applicable line of Form 3115." The form rides with the return, and under section 6.03(1)(c), "A user fee is not required for a Form 3115 filed under the automatic change procedures." Under 6.03(1)(d) there is no acknowledgement of receipt, so your file copy is your proof of filing.

A non-automatic change is a ruling request. Under section 6.03(2)(a)(i) the taxpayer must "file that Form 3115 during the requested year of change," not with the return afterward, and under 6.03(2)(b) it goes to the national office "together with the appropriate user fee." Miss year-end and you have missed the year in all but narrow cases: the procedure allows additional time for a new consolidated group member in CAP, certain Section 381(a) transactions, and "unusual and compelling circumstances" under 6.03(4)(b), which otherwise denies section 9100 relief. Extending the return does not reopen the window.

The payoff under either track is section 8.01: when a taxpayer timely files, "the IRS will not require the taxpayer to change its method of accounting for the same item for a taxable year prior to the requested year of change." That is audit protection, and why the form beats quietly starting to do it right. Section 8.02 lists the exceptions, the first being taxpayers under examination.

The duplicate filing requirement

This is where an otherwise correct position dies procedurally. Under Rev. Proc. 2015-13, section 6.03(1)(a)(i), an automatic Form 3115 is filed twice. The original "must be attached to the taxpayer's timely filed (including any extension) original federal income tax return implementing the requested automatic change for the requested year of change." The second is the Ogden copy:

A signed copy of the original Form 3115 must be filed with the IRS in Ogden, UT (Ogden copy) at the applicable address in Section 9.05 of Rev. Proc. 2015-1 (or successor) no earlier than the first day of the requested year of change and no later than the date the taxpayer files the original Form 3115 with the federal income tax return for the requested year of change.

The Ogden copy cannot go out before the year of change starts, or after the return carrying the original. The address lives in the annually reissued Rev. Proc. 2015-1 successor, not in Rev. Proc. 2015-13, so confirm the address against the Form 3115 instructions for the filing year. Guidance adding a change to the automatic list can also waive the duplicate copy, as happened for the research expensing change in Section 174 expensing after OBBBA.

If the Form 3115 never made it onto a timely filed return, section 6.03(4)(a) grants an automatic 6-month extension to file it, running from the return's due date "excluding any extension," not the extended date. It is automatic-track only and conditioned: the original return timely filed, extensions included, an amended return implementing the change filed inside those six months with the original Form 3115 attached, and the Ogden copy filed. Relief, not a free pass.

What to check before you file

• Method or error? Run the facts through 1.446-1(e)(2)(ii)(a) and (b).
• Sign the adjustment before picking the year. The sign decides one year or four.
• Find the DCN. On the current List of Automatic Changes, use that track. Off it, the deadline is the last day of the year of change.
• Check the eligibility rules in section 5. Section 5.04(1) bars the automatic track for another overall method change where the taxpayer changed, or applied to change, its overall method during "any of the five taxable years ending with the year of change." Its second sentence still lets a specific-item change go automatic if the procedure otherwise allows it. Section 5.05 imposes a parallel five-year bar for the same item. Both have exceptions, and both are easy to trip on a newer client.
• Check examination status. Section 8.02 strips audit protection from taxpayers under examination outside specific windows.
• Diary the Ogden copy. Its date range is not the return's.

One method change pulls from a statute, four regulation paragraphs, a general procedure modified repeatedly since 2015, and a separate list, reissued. That is why I built Tax Orator to answer this kind of question against the primary sources, citation attached.

The depreciation side of the same machinery runs through cost segregation and bonus depreciation; for the weight a revenue procedure carries, see Treasury regulations versus revenue rulings versus private letter rulings.