On Oct. 26, 2020, the Internal Revenue Service published the 2021 tax rates, allowances, and thresholds applicable for the tax law provisions that are adjusted annually for inflation. For 2021 returns filed by individual taxpayers in 2022, the top tax rate will continue to be 37% but the standard deduction, tax bracket ranges, other deductions, and phase-outs will increase. (Note that, in April 2021, individual taxpayers will be filing their 2020 taxes, according to 2020 tax rules.)

Key Takeaways

  • Tax rates remain constant for 2021.
  • Tax brackets, phase-outs for deductions and credits, thresholds, and ceilings increase in 2021.
  • Contribution levels for retirement plans remain unchanged.
  • The CARES Act required minimum distribution (RMD) waiver, distribution, and loan rules lapse after 2020.

Standard Deduction

According to our research, the standard deduction for 2021 will be $25,100, an increase of $300, for married couples filing joint returns; $12,550, an increase of $150, for single taxpayers’ individual returns and married individuals filing separately; and $18,800, an increase of $150, for heads of households. 

The additional standard deduction amount for an individual who is aged or blind will be $1,350; however, if the individual is unmarried and not a surviving spouse, the amount will be $1,700.

The standard deduction for an individual who can be claimed as a dependent on another taxpayer’s return cannot exceed the greater of (1) $1,100, or (2) $350 plus the individual’s earned income (but not more than the regular standard deduction, $12,550).

Same Tax Rates but Higher Brackets

The top rate of 37% will apply to taxable income over $628,300 for married couples’ joint returns; over $523,600 for single taxpayers’ individual returns and heads of household returns; and over $314,150 for married individuals filing separately. The tax rates and brackets for 2021 are provided in the chart below:

2021 Tax Brackets
Rate Married Joint Return Single Individual Head of Household Married Separate Return
10% $19,900 or less $9950 or less $14,200 or less $9950 or less 
12% Over $ 19,900 Over $9,950 Over $14,200 Over $9,950
22% Over $ 81,050 Over $ 40,525 Over $54,200 Over $40,525
24% Over $172,750 Over $86,375 Over $86,350 Over $ 86,375
32% Over $329,850 Over $164,925 Over $164,900 Over $164,925
35% Over $418,850 Over $209,425 Over $209,400 Over $209,425
37% Over $628,300 Over $523,600 Over $523,600 Over $314,150

As provided in the 2017 Tax Cuts and Jobs Act, there is no personal exemption.

Capital Gains

Capital gains rates, which are lower than a taxpayer’s ordinary income rate, depend on the taxpayer’s taxable income and filing status. The maximum adjusted capital gains rates apply for both the regular income tax and the alternative minimum tax.

For 2021, the maximum zero rate amount on adjusted net capital gains for married persons will be $80,800 for joint returns and $40,400 for married individuals’ separate returns; $54,100 for a head of household and $40,400 for single individual returns.


The taxable income level that triggers the maximum capital gains tax of 20% for an individual. For married people filing jointly, the amount is $501,600.

The 15% rate amount will apply to adjusted net capital gains up to $501,600 for joint returns; $250,800 for married individuals’ separate returns; $473,750 for head of household returns; and $445,850 for single individual returns. Above these ceilings, the applicable capital gains rate is set at 20%.

Under the alternative minimum tax (see below), these same rates and brackets apply to adjusted net capital gains.

Individual Tax Credits

Earned Income Credit (EIC)

The 2021 maximum amount of the earned income credit (EIC) for low-income taxpayers and the taxable income levels for its thresholds and ceilings also have been adjusted for inflation. The maximum credit for three or more children will be $6,728. For married couples filing jointly, the phase-out of the credit will begin at $25,470 of adjusted gross income (or earned income, if higher) and will be completed at $57,414.

However, no earned income credit will be allowed if the aggregate amount of investment income—e.g., from interest, dividends, net capital gains, or other passive activities—in 2021 exceeds $10,000. (This $10,000 figure will be pegged to inflation and adjusted accordingly every year going forward.) 

The American Rescue Plan, signed by President Biden on March 11, 2021, includes generous tax breaks to low- and moderate-income people. For 2021 only, the size of the earned-income tax credit will increase for childless households. The maximum credit amount for childless people increases to $1,502, from $543. The age range has also been expanded. People without children will be able to claim the credit beginning at age 19, instead of 25, with the exception of certain full-time students (students between 19 and 24 with at least half a full-time course load are ineligible). The upper age limit, 65, will be eliminated. For single filers, the phaseout percentage is increased to 15.3% and phaseout amounts are increased to $11,610.

Child Tax Credit

President Biden's American Rescue Plan also made changes to the Child Tax Credit for 2021. This year, it will increase to as much as $3,000 per child ($3,600 for ages 5 and under). The age limit for qualifying children also rises to 17 (from 16). Previously, the maximum refundable portion of the $2,000 child credit for each child under age 17 was limited to $1,400 per child. Now, the credit is fully refundable.

In addition, the IRS may issue up to half of an eligible household’s credit as an advance disbursement between July and December 2021, using 2020 or 2019 tax returns to determine eligibility.

To be eligible for the full credit, a married couple filing jointly can have a modified adjusted gross income (MAGI) up to $150,000. Taxpayers filing as heads of household can have a MAGI of up to $112,5000. Finally, for taxpayers filing as single filers, they can have a MAGI of up to $75,000. The extra amount above the original $2,000 credit—either $1,000 or $1,600 per child—is reduced by $50 for every $1,000 in MAGI that exceeds the above levels. 

President Biden's bill also eliminated the minimum income requirement for the Child Tax Credit. Previously, families earning less than $2,500 a year were ineligible and credits were calculated based on distance from that minimum at a rate of 15 cents per child for every dollar of income above $2,500.

Qualified Adoption Expenses

The credit for qualified adoption expenses, as well as the special credit for the adoption of a child with special needs, will be increased to $14,440. Similarly, the exclusion from an employee’s income for adoption expenses that are paid or reimbursed under an employer plan will be increased to the same level.

Lifetime Learning Credit

The maximum $2,000 per return lifetime learning credit for qualified educational expenses for the taxpayer, spouse, or dependent will phase out between modified adjusted gross income of $59,000 and $69,000 for single returns—and between $119,000 and $139,000 for joint returns—in 2021.

Foreign Earned Income Exclusion

The foreign earned income exclusion will increase $1,100 to $108,700.

Alternative Minimum Tax

The alternative minimum tax (AMT) applies to alternative minimum taxable income (AMTI), i.e., regular taxable income with certain tax benefits added back, in excess of an exemption level. 

For 2021, the exemption levels will be $114,600 for joint returns; $73,600 for unmarried individuals; and $57,300 for married persons’ separate returns. These exemption levels phase out between $1,047,200 and $1,505,600 for joint returns; $523,600 and $818,000 for unmarried individuals; and $523,600 and $752,800 for married persons’ separate returns.

The AMT rate is 26% for AMTI up to a maximum AMTI of $199,900 for returns of married couples and single individuals ($99,500 for married filing separately).  All AMTI in excess of these levels will be taxed at 28%.

Increased Allowances: Fringe Benefits, MSAs, and Estates

In 2021, allowances for certain employee fringe benefits will continue at their 2020 levels. The qualified transportation and qualified parking fringes will maintain their monthly limit of $270. The maximum salary reduction for contributions to health flexible spending accounts will continue at $2,750 for the year. However, for cafeteria plans that permit carryovers of unused amounts, the maximum carryover amount will increase by $50 to $550.

Certain thresholds and ceilings for participants in Medical Savings Accounts also will be increased. For self-only coverage, the plan’s annual deductible for 2021 must be at least $2,400 and no more than $3,600 with a maximum out-of-pocket expense of $4800, an increase of $50 for each amount. For family coverage, the deductible must be at least $4,800 but no more than $7,150, an increase of $50 for both amounts. The out-of-pocket expense maximum for family coverage will increase by $100 to $8,750 for 2021. 

For a decedent dying in 2021, the exemption level for the estate tax will increase to $11,700,000 from $11,580,000. The annual gift tax exclusion of $15,000 per recipient will continue at the same level.

Retirement Plans

The IRS also announced the 2021 limitations on retirement plan contributions and their phase-out ranges. The income exclusion for employee contributions to employer retirement plans, such as 401(k)s, 403(b)s, 457 plans, and the federal government’s Thrift Savings Plan will remain at $19,500. The catch-up contribution for employees age 50 and older will continue at $6500.  For SIMPLE retirement accounts, the limitation will remain $13,500.

Although the deductible amount for IRA contributions will remain at $6000 with the catch-up contribution for individuals age 50 or over continuing at $1000, the phase-out levels for the deduction are adjusted upwards. If either a taxpayer or their spouse is covered by a workplace retirement plan during the year, the deduction may be reduced or phased out until it is eliminated. 

  • If an individual is an active participant in an employer retirement plan, the deduction will phase out for adjusted gross incomes between $66,000 and $76,000 for single individuals and heads of households, and between $105,000 and $125,000 for joint returns.
  • For an IRA contributor who is not an active participant in another plan but whose spouse is an active contributor, the phase-out ranges from $198,000 to $208,000.
  • For a married active contributor filing a separate return, there is no adjustment and the phase-out range will remain $0 to $10,000.

These phase-outs do not apply if neither a taxpayer nor his or her spouse is covered by a workplace retirement plan.

For 2021 contributions to Roth IRAs, the phase-out is $125,000 to $140,000 for single taxpayers and heads of households and $198,000 to $208,000 for joint returns. The Roth IRA phase-out for a married individual’s separate return will continue at $0 to $10,000.

Low-income taxpayers who make contributions to 401(k), 403(b), SIMPLE, SEP, or certain 457 plans, as well as traditional and Roth IRAS, are entitled to claim a non-refundable tax credit in addition to their exclusions or deductions. Married taxpayers filing joint returns will be eligible to claim a credit for contributions of up to $4000 at a rate or 50% with adjusted gross income (AGI) up to $39,500; at a rate of 20% with AGI up to $43,000; and at a rate of 10% with AGI up to $66,000.

Heads of households will be able to claim a credit for up to $2000 of contributions at a rate of 50% with AGI up to $29,625; at a rate of 20% with AGI up to $32,250; and at a rate of 10% with AGI up to $49,500. All other taxpayers will be eligible to claim a credit for up to $2000 of contributions at a rate of 50% with AGI up to $19,750; at a rate of 20% with AGI up to $21,500; and at a rate of 10% with AGI up to $33,000.