The IRS has released the annual inflation adjustments for 2025 for the income tax rate tables, plus more than 60 other tax provisions. The IRS makes these cost-of-living adjustments (COLAs) each year to reflect inflation.

For 2025, the Social Security wage cap will be $176,100, and social security and Supplemental Security Income (SSI) benefits will increase by 2.5 percent. These changes reflect cost-of-living adjustments to account for inflation.

For 2025, the Social Security wage cap will be $176,100, and social security and Supplemental Security Income (SSI) benefits will increase by 2.5 percent. These changes reflect cost-of-living adjustments to account for inflation.

Wage Cap for Social Security Tax

The Federal Insurance Contributions Act (FICA) tax on wages is 7.65 percent each for the employee and the employer. FICA tax has two components:

• a 6.2 percent social security tax, also known as old age, survivors, and disability insurance (OASDI); and
• a 1.45 percent Medicare tax, also known as hospital insurance (HI).

For self-employed workers, the Self-Employment tax is 15.3 percent, consisting of:

• a 12.4 percent OASDI tax; and
• a 2.9 percent HI tax.

OASDI tax applies only up to a wage base, which includes most wages and self-employment income up to the annual wage cap.

For 2025, the wage base is $176,100. Thus, OASDI tax applies only to the taxpayer’s first $176,100 in wages or net earnings from self-employment. Taxpayers do not pay any OASDI tax on earnings that exceed $176,100.

There is no wage cap for HI tax.

Maximum Social Security Tax for 2025

For workers who earn $176,100 or more in 2025:

• an employee will pay a total of $10,918.20 in social security tax ($176,100 x 6.2 percent);
• the employer will pay the same amount; and
• a self-employed worker will pay a total of $21,836.40 in social security tax ($176,100 x 12.4 percent).

Additional Medicare Tax

Higher-income workers may have to pay an Additional Medicare tax of 0.9 percent. This tax applies to wages and self-employment income that exceed:

• $250,000 for married taxpayers who file a joint return;
• $125,000 for married taxpayers who file separate returns; and
• $200,000 for other taxpayers.

The annual wage cap does not affect the Additional Medicare tax.

Benefit Increase for 2025

Finally, a cost-of-living adjustment (COLA) will increase social security and SSI benefits for 2025 by 2.5 percent. The COLA is intended to ensure that inflation does not erode the purchasing power of these benefits.

The IRS announced tax relief for certain individuals and businesses affected by terrorist attacks in the State of Israel throughout 2023 and 2024. The Treasury and IRS may provide additional relief in the future.

The IRS announced tax relief for certain individuals and businesses affected by terrorist attacks in the State of Israel throughout 2023 and 2024. The Treasury and IRS may provide additional relief in the future.

For taxpayers who were affected taxpayers for purposes of Notice 2023-71, I.R.B. 2023-44, 1191, the separate determination of terroristic action and grant of relief set forth in this notice will also postpone taxpayer acts and government acts already postponed by Notice 2023-71 if the taxpayer is eligible for relief under both notices.

Filing and Payment Deadlines Extended

Affected taxpayers will have until September 30, 2025, to file tax returns, make tax payments, and perform certain time-sensitive acts, that are due to be performed on or after September 30, 2024, and before September 30, 2025, including but not limited to:

• Filing any return of income tax, estate tax, gift tax, generation-skipping transfer tax, excise tax (other than firearms tax), harbor maintenance tax, or employment tax;
• Paying any income tax, estate tax, gift tax, generation-skipping transfer tax, excise tax (other than firearms tax), harbor maintenance tax, or employment tax, or any installment of those taxes;
• Making contributions to a qualified retirement plan;
• Filing a petition with the Tax Court;
• Filing a claim for credit or refund of any tax; and
• Bringing suit upon a claim for credit or refund of any tax.

The government is also provided until September 30, 2025, to perform certain time-sensitive acts, that are due to be performed on or after September 30, 2024, and before September 30, 2025, such as assessing any tax.

Taxpayers eligible for relief under Notice 2023-71 who are also eligible for relief under this notice have until September 30, 2025, to perform the time-sensitive acts that were postponed by Notice 2023-71. Taxpayers eligible for relief under Notice 2023-71 who are not also eligible for relief under this notice have until October 7, 2024, to perform the time-sensitive acts postponed by Notice 2023-71.

Government acts that were postponed by Notice 2023-71 until October 7, 2024, are also postponed by this notice until September 30, 2025, for taxpayers that are eligible for relief under Notice 2023-71 and this notice.

Notice 2024-72

IR-2024-252

The IRS has expanded the list of preventive care benefits permitted to be provided by a high deductible health plan (HDHP) under Code Sec. 223(c)(2)(C) without a deductible, or with a deductible below the applicable minimum deductible for the HDHP, to include oral contraception, breast cancer screening, and continuous glucose monitors for certain patients.

The IRS has expanded the list of preventive care benefits permitted to be provided by a high deductible health plan (HDHP) under Code Sec. 223(c)(2)(C) without a deductible, or with a deductible below the applicable minimum deductible for the HDHP, to include oral contraception, breast cancer screening, and continuous glucose monitors for certain patients.

Contraceptives

A health plan will not fail to qualify as an HDHP under Code Sec. 223(c)(2) merely because it provides benefits for over-the-counter (OTC) oral contraceptives, including emergency contraceptives, and male condoms before taxpayers satisfied the minimum annual deductible for an HDHP under Code Sec. 223(c)(2)(A). The HRSA-Supported Guidelines relating to contraceptives have been updated and no longer contain the "as prescribed" restriction.

Breast Cancer and Diabetes Care

The IRS has also clarified that all types of breast cancer screening for taxpayers (including those other than mammograms) who have not been diagnosed with breast cancer will be treated as preventive care under Code Sec. 223(c)(2)(C). Moreover, continuous glucose monitors for individuals diagnosed with diabetes are also treated as preventive care under Code Sec. 223(c)(2)(C).

Insulin Products Safe Harbor

The new safe harbor for absence of a deductible for certain insulin products under Code Sec. 223(c)(2)(G) will apply without regard to whether the insulin product was prescribed to treat taxpayers diagnosed with diabetes. or prescribed for the purpose of preventing the exacerbation of diabetes or the development of a secondary condition.

Effective Date

This guidance is generally effective for plan years (in the individual market, policy years) that begin on or after December 30, 2022.

Effect on Other Documents

Notice 2004-23 is clarified by noting the safe harbor for absence of a deductible for breast cancer screening.

Notice 2018-12 is superseded with respect to the guidance regarding male condoms.

Notice 2019-45 is clarified and expanded by noting the safe harbor for absence of a deductible for continuous glucose monitors and for certain insulin products pursuant to the Inflation Reduction Act of 2022.

Notice 2024-75

The IRS has released the applicable terminal charge and the Standard Industry Fare Level (SIFL) mileage rate for determining the value of noncommercial flights on employer-provided aircraft in effect for the second half of 2024 for purposes of the taxation of fringe benefits. 

The IRS has released the applicable terminal charge and the Standard Industry Fare Level (SIFL) mileage rate for determining the value of noncommercial flights on employer-provided aircraft in effect for the second half of 2024 for purposes of the taxation of fringe benefits. Further, in March 2020, the Coronavirus Aid, Relief, and Economic Security (CARES) Act (P.L. 116-136) was enacted, directing the Treasury Department to allot up to $25 billion for domestic carriers to cover payroll expenses via grants and promissory notes, known as the Payroll Support Program (PSP). Therefore, the IRS has provided the SIFL Mileage Rate. The value of a flight is determined under the base aircraft valuation formula by multiplying the SIFL cents-per-mile rates applicable for the period during which the flight was taken by the appropriate aircraft multiple provided in Reg. §1.61-21(g)(7) and then adding the applicable terminal charge.

For flights taken during the period from July 1, 2024, through December 31, 2024, the terminal charge is $54.30, and the SIFL rates are: $.2971 per mile for the first 500 miles, $.2265 per mile 501 through 1,500 miles, and $.2178 per mile over 1,500 miles.

The IRS identified drought-stricken areas where tax relief is available to taxpayers that sold or exchanged livestock because of drought. The relief extends the deadlines for taxpayers to replace the livestock and avoid reporting gain on the sales. These extensions apply until the drought-stricken area has a drought-free year.

The IRS identified drought-stricken areas where tax relief is available to taxpayers that sold or exchanged livestock because of drought. The relief extends the deadlines for taxpayers to replace the livestock and avoid reporting gain on the sales. These extensions apply until the drought-stricken area has a drought-free year.

When Sales of Livestock are Involuntary Conversions

Sales of livestock due to drought are involuntary conversions of property. Taxpayers can postpone gain on involuntary conversions if they buy qualified replacement property during the replacement period. Qualified replacement property must be similar or related in service or use to the converted property.

Usually, the replacement period ends two years after the tax year in which the involuntary conversion occurs. However, a longer replacement period applies in several situations, such as when sales occur in a drought-stricken area.

Livestock Sold Because of Weather

Taxpayers have four years to replace livestock they sold or exchanged solely because of drought, flood, or other weather condition. Three conditions apply.

First, the livestock cannot be raised for slaughter, held for sporting purposes or be poultry.

Second, the taxpayer must have held the converted livestock for:

• draft.
• dairy, or
• breeding purposes.

Third, the weather condition must make the area eligible for federal assistance.

Persistent Drought

The IRS extends the four-year replacement period when a taxpayer sells or exchanges livestock due to persistent drought. The extension continues until the taxpayer’s region experiences a drought-free year.

The first drought-free year is the first 12-month period that:

• ends on August 31 in or after the last year of the four-year replacement period, and
• does not include any weekly period of drought.

What Areas are Suffering from Drought

The National Drought Mitigation Center produces weekly Drought Monitor maps that report drought-stricken areas. Taxpayers can view these maps at

https://droughtmonitor.unl.edu/Maps/MapArchive.aspx

However, the IRS also provided a list of areas where the year ending on August 31, 2024, was not a drought-free year. The replacement period in these areas will continue until the area has a drought-free year.

The IRS has taken special steps to provide more than 500 employees to help with the Federal Emergency Management Agency’s (FEMA) disaster relief call lines and sending IRS Criminal Investigation (IRS-CI) agents into devastated areas to help with search and rescue efforts and other relief work as part of efforts to help victims of Hurricane Helene. The IRS assigned more than 500 customer service representatives from Dallas and Philadelphia to help FEMA phone operations.

The IRS has taken special steps to provide more than 500 employees to help with the Federal Emergency Management Agency’s (FEMA) disaster relief call lines and sending IRS Criminal Investigation (IRS-CI) agents into devastated areas to help with search and rescue efforts and other relief work as part of efforts to help victims of Hurricane Helene. The IRS assigned more than 500 customer service representatives from Dallas and Philadelphia to help FEMA phone operations.

Further, a team of 16 special agents from across the country were initially deployed last week by the IRS-CI to the Tampa area to help with search and rescue teams. During the weekend, the IRS team moved to North Carolina to assist with door-to-door search efforts. As part of this work, the IRS-CI agents are also assisting FEMA with security and protection for relief teams and their equipment.

Additionally, the IRS reminded taxpayers in Alabama, Georgia, North Carolina and South Carolina and parts of Florida, Tennessee and Virginia that they have until May 1, 2025, to file various federal individual and business tax returns and make tax payments. The IRS is offering relief to any area designated by FEMA. Besides all of Alabama, Georgia, North Carolina and South Carolina, this currently includes 41 counties in Florida, eight counties in Tennessee and six counties and one city in Virginia.

The IRS provided guidance addressing long-term, part-time employee eligibility rules under Code Sec. 403(b)(12)(D), which apply to certain 403(b) plans beginning in 2025. The IRS also announced a delayed applicability date for related final regulations under Code Sec. 401(k).

The IRS provided guidance addressing long-term, part-time employee eligibility rules under Code Sec. 403(b)(12)(D), which apply to certain 403(b) plans beginning in 2025. The IRS also announced a delayed applicability date for related final regulations under Code Sec. 401(k).

Application of Code Sec. 403(b)(12)

The IRS provided guidance in the form of questions and answers on the requirement that 403(b) plans allow certain long-term, part-time employee to participate. The IRS clarified that the long-term, part-time employee eligibility rules only apply to 403(b) plans that are subject to title I of ERISA. Thus, a governmental plan under ERISA §3(32) is not subject to the long-term, part-time employee eligibility rules because it is not subject to title I pursuant to ERISA §4(b). The guidance also provides that 403(b) plans can continue to exclude student employees regardless of whether the individual qualifies under long-term, part-time employee eligibility rules.

Future Guidance

The guidance for 403(b) plans applies for plan years beginning after December 31, 2024. The IRS anticipates issuing proposed regulations applicable to 403(b) plans that are generally similar to regulations applicable to 401(k) plans.

Applicability Date for 401(k) Regulations

The IRS also addressed the applicability date of rules for 401(k) plans. Final regulations related to long-term, part-time employee eligibility rules will apply no earlier than to plan years beginning on or after January 1, 2026, the IRS said.

The Internal Revenue Service is estimated a slight decrease in the estimated tax gap for tax year 2022.

According to Tax Gap Projections for Tax Year 2022 report, the IRS is projecting the net tax gap to be $606 billion in TY 2022, down from the revised projected tax gap of $617 billion for TY 2021. The decrease track with a one-percent decrease in the true tax liability during that time.

he Internal Revenue Service is estimated a slight decrease in the estimated tax gap for tax year 2022.

According to Tax Gap Projections for Tax Year 2022 report, the IRS is projecting the net tax gap to be $606 billion in TY 2022, down from the revised projected tax gap of $617 billion for TY 2021. The decrease track with a one-percent decrease in the true tax liability during that time.

The TY 2022 gross tax is projected to be $696 billion, and includes the following components:

• Underreporting (tax understated on timely filed returns) - $539 billion
• Underpayment (tax that was reported on time, but not paid on time) - $94 billion
• Nonfiling (tax not paid on time by those who did not file on time) - $63 billion

For TY 2022, the projected net tax gap broken down by tax type includes:

• Individual income tax - $447 billion
• Corporation income tax - $40 billion
• Employment taxes - $119 billion
• Estate tax and excise tax – less than $500 million in each category

The size of the tax gap "vividly illustrates the ongoing need for adequate funding for the IRS," agency Commissioner Daniel Werfel said in a statement. "We need to focus both on compliance efforts to enforce existing laws as well as improving services to help taxpayers with their tax obligations to help address the tax gap."

From TY 2021 to TY 2022, the voluntary compliance rate slightly increased from 84.9 percent to 85.0 percent and the net compliance rate rose slightly from 86.9 percent from 86.8 percent.

The agency stated in the report that the relatively static voluntary compliance rate was "largely expected since the projection methodology assumes that reporting compliance behavior has not changed since the TY 2014-2016 time frame," although the voluntary compliance rate is projected to fall from 58 percent in TY 2021 to 55 percent in TY 2022.

By Gregory Twachtman, Washington News Editor

The IRS has released the annual inflation adjustments for 2021 for the income tax rate tables, and for over 50 other tax provisions. The IRS makes these cost-of-living adjustments (COLAs) each year to reflect inflation.

The IRS has released the annual inflation adjustments for 2021 for the income tax rate tables, and for over 50 other tax provisions. The IRS makes these cost-of-living adjustments (COLAs) each year to reflect inflation.

2021 Income Tax Brackets
For 2021, the highest income tax bracket of 37 percent applies when taxable income hits:

• $628,300 for married individuals filing jointly and surviving spouses,
• $523,600 for single individuals and heads of households,
• $314,150 for married individuals filing separately, and
• $13,050 for estates and trusts.

2021 Standard Deduction
The standard deduction for 2021 is:

• $25,100 for married individuals filing jointly and surviving spouses,
• $18,800 for heads of households, and
• $12,550 for single individuals and married individuals filing separately.

The standard deduction for a dependent is limited to the greater of:

• $1,100 or
• the sum of $350 plus the dependent’s earned income.

Individuals who are blind or at least 65 years old get an additional standard deduction of:

• $1,350 for married taxpayers and surviving spouses, or
• $1,700 for other taxpayers.

AMT Exemption for 2021
The alternative minimum tax (AMT) exemption for 2021 is:

• $114,600 for married individuals filing jointly and surviving spouses,
• $73,600 for single individuals and heads of households,
• $57,300 for married individuals filing separately, and
• $25,700 for estates and trusts.

The exemption amounts begin to phase out when alternative minimum taxable income (AMTI) exceeds:

• $1,047,200 for married individuals filing jointly and surviving spouses,
• $523,600 for single individuals, heads of households, and married individuals filing separately, and
• $85,650 for estates and trusts.

Expensing Section 179 Property in 2021
For tax years beginning in 2021, taxpayers can expense up to $1,050,000 in Code Sec. 179 property. However, this dollar limit is reduced when the Section 179 property placed in service during the year exceeds $2,620,000.

Estate and Gift Tax Adjustments for 2021
The following inflation adjustments apply to federal estate and gift taxes in 2021:

• the gift tax exclusion is $15,000 per donee, or $159,000 for gifts to spouses who are not U.S. citizens;
• the federal estate tax exclusion is $11,700,000; and
• the maximum reduction for real property under the special valuation method is $1,190,000.

2021 Inflation Adjustments for Other Tax Items

The maximum foreign earned income exclusion amount in 2021 is $108,700.

The IRS also provided inflation-adjusted amounts for the:

• adoption credit,
• lifetime learning credit,
• earned income credit,
• excludable interest on U.S. savings bonds used for education,
• various penalties, and
• many other provisions.

Effective Date
These inflation adjustments generally apply to tax years beginning in 2021, so they affect most returns that will be filed in 2022. However, some specified figures apply to transactions or events in calendar year 2021.

The IRS has released the 2021 cost-of-living adjustments (COLAs) for pension plan dollar limitations and other retirement-related provisions.

The IRS has released the 2021 cost-of-living adjustments (COLAs) for pension plan dollar limitations and other retirement-related provisions.

Key Unchanged Amounts
The 2021 contribution limit remains unchanged at $19,500 for employees who take part in:

• 401(k) plans,
• 403(b) plans,
• most 457 plans, and
• the federal government’s Thrift Savings Plan

The catch-up contribution limit for employees aged 50 and over who participate in these plans also remains unchanged at $6,500.

The limitation for SIMPLE retirement accounts is unchanged at $13,500.

For individual retirement arrangements (IRAs), the limit on annual contributions to an IRA remains unchanged at $6,000. The additional catch-up contribution limit for individuals aged 50 and over is not subject to an annual cost-of-living adjustment, and so remains $1,000.

IRAs and Roth IRAs
The income ranges for determining eligibility to make deductible contributions to traditional IRAs and to contribute to Roth IRAs have increased for 2021.

Taxpayers can deduct contributions to a traditional IRA if they meet certain conditions. The deduction phases out if the taxpayer or his or her spouse takes part in a retirement plan at work. The deduction phase out depends on the taxpayer's filing status and income.

• For single taxpayers covered by a workplace retirement plan, the 2021 phase-out range is $66,000 to $76,000, up from $65,000 to $75,000 for 2020.
• For married couples filing jointly, when the spouse making the contribution takes part in a workplace retirement plan, the 2021 phase-out range is $105,000 to $125,000, up from $104,000 to $124,000 for 2020.
• For an IRA contributor who is not covered by a workplace retirement plan but who is married to someone who is covered, the 2021 phase out range is between $198,000 and $208,000, up from $196,000 and $206,000 for 2020.
• For a married individual who is covered by a workplace plan and is filing a separate return, the phase-out range is not subject to an annual COLA and remains $0 to $10,000.

The 2021 income phase-out ranges for Roth IRA contributions are:

• $125,000 to $140,000 for singles and heads of household (up from $124,000 to $139,000 in 2020),
• $198,000 to $208,000 for married filing jointly (up from $196,000 to $206,000 in 2020), and
• $0 to $10,000 for married filing separately.

Saver’s Credit
The income limit for low- and moderate-income workers to claim the Saver's Credit under Code Sec. 25B has also increased for 2021:

• $66,000 for married couples filing jointly (up from $65,000 in 2020),
• $49,500 for heads of household (up from $48,750 in 2020), and
• $33,000 for singles and married filing separately (up from $32,500 in 2020).

The IRS has provided guidance to taxpayers that want to apply either Reg. §1.168(k)-2 and Reg. §1.1502-68, or want to rely on proposed regulations under NPRM REG-106808-19.

The IRS has provided guidance to taxpayers that want to apply either Reg. §1.168(k)-2 and Reg. §1.1502-68, or want to rely on proposed regulations under NPRM REG-106808-19, for:

• certain depreciable property acquired and placed in service after September 27, 2017, by the taxpayer during its tax years ending on or after September 28, 2017, and before the taxpayer's first tax year that begins on or after January 1, 2021;
• certain plants planted or grafted after September 27, 2017, by the taxpayer during its tax years ending on or after September 28, 2017, and before the taxpayer's first tax year that begins on or after January 1, 2021; and
• components acquired or self-constructed after September 27, 2017, of certain larger self-constructed property and placed in service by the taxpayer during its tax years ending on or after September 28, 2017, and before the taxpayer's first tax year that begins on or after January 1, 2021.

Rev. Proc. 2020-25, 2020-19 I.R.B. 785, and Rev. Proc. 2019-43, 2019-48 I.R.B. 1107, are modified.

Change in Accounting Method
The guidance applies to taxpayers who are changing their method of accounting for depreciable property that includes:

• components described in Reg. §1.168(k)-2(c) or NPRM REG-106808-19 where the component election has already been made; and
• specified plants for which the Code Sec. 168(k)(5) election has been made and that are planted, or grafted to a plant that was previously planted, after September 27, 2017, during the taxpayer’s 2017, 2018, 2019, or 2020 tax year.

This guidance does not apply to property or a plant:

• that is impacted by a late election, or withdrawn election under Code Sec. 163(j)(7) after November 16, 2020, pursuant to Rev. Proc. 2020-22;
• for which the taxpayer is changing from deducting the cost or other basis of such property as an expense to capitalizing and depreciating the cost or other basis, or vice versa; or
• that the taxpayer does not own at the beginning of the year of change, with some exceptions.

In addition, this guidance cannot be used to make a late election, or revoke an election, under Code Sec. 168, Code Sec. 179, or Reg. §1.1502-68.

Taxpayers have a choice of applying the 2020 final regulations under T.D. 9916, the previous final regulations under T.D. 9874, or both the final regulations under NPRM REG-106808-19. However, once a taxpayer applies Reg. §1.168(k)-2 and Reg. §1.1502-68, the taxpayer must apply Reg. §1.168(k)-2 and Reg. §1.1502-68 to all subsequent tax years.

Automatic Extensions of Time
Applicable taxpayers may make a late Code Sec. 168(k)(5) election, a late Code Sec. 168(k)(7) election, a late Code Sec. 168(k)(10) election, a late component election, a late designated transaction election, or a late proposed component election, by filing either:

• an amended Form 1065 for the placed-in-service year of the property, or for the planting year of the specified plant, as applicable, on or before December 31, 2021; or
• a Form 3115 with the taxpayer’s timely filed original Federal income tax return or Form 1065 for the taxpayer’s first or second tax year succeeding the tax year in which the taxpayer placed in service the property or the planting year of the specified plant, or, if later, the taxpayer’s timely filed original Federal income tax return or Form 1065 that is filed on or after November 6, 2020, and on or before December 31, 2021.

Effective Date
This guidance is effective on November 6, 2020.

The IRS has adopted previously issued proposed regulations ( REG-106808-19) dealing with the 100 percent bonus depreciation deduction. In addition, some clarifying changes have been made to previously issued final regulations ( T.D. 9874). Changes to the proposed and earlier final regulations are largely in response to various comments submitted by practitioners, and generally relate to:

The IRS has adopted previously issued proposed regulations ( REG-106808-19) dealing with the 100 percent bonus depreciation deduction. In addition, some clarifying changes have been made to previously issued final regulations ( T.D. 9874). Changes to the proposed and earlier final regulations are largely in response to various comments submitted by practitioners, and generally relate to:

• the definition of qualified used property;
• the election to claim bonus depreciation on components acquired or self-constructed after September 27, 2017, for larger self-constructed property for which manufacture, construction, or production began before September 28, 2017;
• application of the mid-quarter convention;
• clarifications to the definition of qualified improvement property, predecessor, and class of property; and
• clarifications to the rules for consolidated groups
  The rules for consolidated groups have also been moved from Proposed Reg. §1.168(k)-2(b)(3)(v) to new Reg. §1.1502-68.

Used Property
The 2019 final regulations provide that in determining whether the taxpayer or a predecessor had a depreciation interest in property prior to its acquisition, only the five calendar years immediately prior to the current placed-in-service year are considered. The latest IRS regulations clarify that the five calendar years immediately prior to the current calendar year in which the property is placed in service by the taxpayer, and the portion of such current calendar year before the placed-in-service date of the property without taking into account the applicable convention, are taken into account. In addition, the five-year look-back period applies separately to the taxpayer and a predecessor.

Furthermore, if the taxpayer or a predecessor, or both, have not been in existence during the entire look-back period, then only the portion of the look-back period during which the taxpayer or a predecessor, or both, have been in existence is taken into account.

Expanded Component Election
The prior regulations allow taxpayers to election to claim 100 percent bonus depreciation on components of certain larger constructed property that qualifies for bonus depreciation if the construction of the larger property began before September 28, 2017. The components must be acquired or constructed after September 27, 2017, and the larger property must be placed in service before 2020 (2021 in the case of property with a longer construction period). The final regulations remove the 2020/2021 cutoff date. In addition, the final regulations provide that eligible larger self-constructed property also includes property that is constructed for a taxpayer under a written contract that is not binding and that is entered into prior to construction for use in the taxpayer’s trade or business. The definition of a larger constructed property is also clarified.

Qualified Improvement Property
The 15-year recovery period for qualified improvement property applies only to improvements "made by the taxpayer." The final regulations clarify that an improvement is considered made by a taxpayer if the property is constructed for the taxpayer. However, qualified improvement property received by a transferee taxpayer in a nonrecognition transaction described in Code Sec. 168(i)(7) is not eligible for bonus depreciation.

Mid-Quarter Convention
The final regulations clarify that depreciable basis is not reduced by the amount of bonus deduction in determining whether the mid-quarter convention applies.

Binding Contracts
Generally, property acquired pursuant to a binding contract entered into after September 27, 2017, does not qualify for bonus depreciation at the 100 percent rate. The final regulations clarify that a contract for a sale of stock of a corporation that is treated as an asset sale as the result of a Code Sec. 336(e) election made for a disposition described in Reg. §1.336-2(b)(1) is a binding contract if enforceable under state law.

Floor Plan Financing
The IRS intends to issue guidance relating to transition relief for taxpayers with a trade or business with floor plan financing indebtedness that want to revoke elections not to claim bonus depreciation for property placed in service during 2018.

The IRS will not allow a taxpayer to limit the amount of its otherwise deductible floor plan interest in order to qualify for bonus depreciation. However, guidance will address transition relief for the 2018 tax year for taxpayers that treated Code Sec. 168(j)(1) as providing an option for a business with floor plan financing indebtedness to include or exclude its floor plan financing interest expense in determining the amount allowed as a deduction for business interest expense for the tax year.

Effective Date
In general, the regulations apply to property acquired after September 27, 2017, and placed in service during or after a tax years that begins on or after January 1, 2021. However, they may be relied on for earlier tax years.