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A rate schedule is a chart that helps United States taxpayers determine their federal income tax for a particular year.^[1]^[2] Another name for "rate schedule" is "rate table".^[1]

Origin

The origin of the current rate schedules is the Internal Revenue Code of 1986 (IRC),^[2]^[3] which is separately published as Title 26 of the United States Code.^[4] With that law, the U.S. Congress created four types of rate tables, all of which are based on a taxpayer's filing status (e.g., "married individuals filing joint returns," "heads of households").^[2]^[5]^[6]

Each year the United States Internal Revenue Service (IRS) updates rate schedules in accordance with guidelines that Congress established in the IRC.^[7]^[8] In general, the IRS bases such adjustments on inflation and cost of living increases in the previous year.^[9]

Application

The tax rate schedules give tax rates for given levels of taxable income. There is a complex relationship between taxable income and actual income, making it difficult to draw conclusions from the tables. Even the marginal tax rates are misleading because there are various laws that relate taxable income to actual income such that an increase of a dollar of actual income results in an increase of more or less than a dollar in taxable income depending on the circumstances surrounding the increase, thus making the marginal tax rate dependent on an individual taxpayer's personal situation.

These schedules apply only to regular US income tax, whereas there is a second income tax, the Alternative Minimum Tax, that uses a different schedule. A taxpayer's tax obligation is the higher of those two income taxes, which makes drawing conclusions from the table even more difficult.

Format

All rate schedules have an identical format, containing four columns and seven rows (called "brackets").^[2] The first two columns indicate the range of taxable income that a taxpayer must have to qualify for a particular tax rate. The third column indicates the tax rate itself.^[2] The fourth column gives the range of income to which the current marginal rate applies.

Given that Congress has prescribed a system of progressive taxation, all but the lowest-earning taxpayers pay distinct rates for different parts of their income.^[10]

The following are the IRS rate schedules for 2021:^[11]

Schedule X — Single

If taxable income is over--	But not over--	The tax is:	of the amount over--
$0	$9,950	10%	$0
$9,951	$40,525	$995.00 + 12%	$9,950
$40,526	$86,375	$4,663.88 + 22%	$40,525
$86,376	$164,925	$14,750.66 + 24%	$86,375
$164,926	$209,425	$33,602.42 + 32%	$164,925
$209,426	$523,600	$47,842.10 + 35%	$209,425
$523,601	no limit	$157,803.00 + 37%	$523,600

Schedule Y-1 — Married filing jointly or qualifying widow(er)

If taxable income is over--	But not over--	The tax is:	of the amount over--
$0	$19,900	10%	$0
$19,901	$81,050	$1,990.00 + 12%	$19,900
$81,051	$172,750	$9,327.88 + 22%	$81,050
$172,751	$329,850	$29,501.66 + 24%	$172,750
$329,851	$418,850	$67,205.42 + 32%	$329,850
$418,851	$628,300	$95,685.10 + 35%	$418,850
$628,301	no limit	$168,992.25 + 37%	$628,300

Schedule Y-2 — Married filing separately

If taxable income is over--	But not over--	The tax is:	of the amount over--
$0	$9,875	10%	$0
$9,876	$40,125	$987.50 + 12%	$9,875
$40,126	$85,525	$4,617.38 + 22%	$40,125
$85,526	$163,300	$14,605.16 + 24%	$85,525
$163,301	$207,350	$33,271.16 + 32%	$163,300
$207,351	$311,025	$47,366.84 + 35%	$207,350
$311,026	no limit	$83,652.74 + 37%	$311,025

Schedule Z — Head of household

If taxable income is over--	But not over--	The tax is:	of the amount over--
$0	$14,100	10%	$0
$14,101	$53,700	$1,410.00 + 12%	$14,100
$53,701	$85,500	$6,161.88 + 22%	$53,700
$85,501	$163,300	$13,157.66 + 24%	$85,500
$163,301	$207,350	$31,829.42 + 32%	$163,300
$207,351	$518,400	$45,925.10 + 35%	$207,350
$518,401	no limit	$154,792.25 + 37%	$518,400

Caution: These tables shown above are accurate for 2021 only and do not apply for any other year.

Use of rate schedules

To use a rate schedule, a taxpayer must know their filing status and amount of taxable income.^[12] Definitions related to one's filing status can be found in IRC § A.2(a-b), and general guidelines regarding taxable income are described in IRC § A.63(a-b).^[13] Once a taxpayer has made these determinations, he (1) references the pertinent rate schedule, (2) finds the appropriate bracket (based on her taxable income), and (3) uses the formula described in the third column to determine his federal income tax.

Assume, for example, that Taxpayer A is single and has a taxable income of $175,000 in 2021. The following steps apply the procedure outlined above:

(1) Because he is single, the pertinent rate table is Schedule X.^[2]
(2) Given that his income falls between $164,296 and $209,425, he uses the fifth bracket in Schedule X.^[2]
(3) His federal income tax will be "$33,602.42 plus 32% of the amount over $164,295."^[2] Applying this formula to Taxpayer A, one arrives at the following result:
$33,602.42 + (0.32 * ($175,000 - $164,295)) =
$33,602.42 + (0.28 * https://en.wikipedia.org/wiki/Standard_deduction$85,650) =
$33,602.42 + $3,425.60 = $37,028.02.

Accordingly, Taxpayer A must pay $37,028.02 in federal income taxes for 2021. Since his income is in the fifth bracket, his marginal tax rate for each additional dollar he earns is 32%, but his effective tax rate is 21% ($37,028.02/$175,000 is .212).

References

^ ^a ^b Samuel A. Donaldson, Federal Income Taxation of Individuals: Cases, Problems and Materials, 2nd Edition (St. Paul: Thomson/West, 2007), 8-9.
^ ^a ^b ^c ^d ^e ^f ^g ^h Internal Revenue Service, United States Department of the Treasury, "2007 Federal Tax Rate Schedules," https://www.irs.gov/pub/irs-prior/i1040tt--2007.pdf.
^ Samuel A. Donaldson, Federal Income Taxation of Individuals: Cases, Problems and Materials, 2nd Edition (St. Paul: Thomson/West, 2007), 2.
^ Samuel A. Donaldson, Federal Income Taxation of Individuals: Cases, Problems and Materials, 2nd Edition (St. Paul: Thomson/West, 2007), 2; 26 U.S.C.
^ 26 U.S.C. § A.1(a-e)
^ Samuel A. Donaldson, Federal Income Taxation of Individuals: Cases, Problems and Materials, 2nd Edition (St. Paul: Thomson/West, 2007), 5-9.
^ 26 U.S.C. § A.1(f)
^ Samuel A. Donaldson, Federal Income Taxation of Individuals: Cases, Problems and Materials, 2nd Edition (St. Paul: Thomson/West, 2007), 8-9 (citing Revenue Procedure 2006-53, 2006-48 I.R.B. 996).
^ 26 U.S.C. § A.1(f).
^ Samuel A. Donaldson, Federal Income Taxation of Individuals: Cases, Problems and Materials, 2nd Edition (St. Paul: Thomson/West, 2007), 10; Internal Revenue Service, United States Department of the Treasury, "2007 Federal Tax Rate Schedules," https://www.irs.gov/pub/irs-prior/i1040tt--2007.pdf.
^ 2021 Tax Brackets | Tax Foundation
^ Samuel A. Donaldson, Federal Income Taxation of Individuals: Cases, Problems and Materials, 2nd Edition (St. Paul: Thomson/West, 2007), 5; Internal Revenue Service, United States Department of the Treasury, "2007 Federal Tax Rate Schedules," https://www.irs.gov/pub/irs-prior/i1040tt--2007.pdf.
^ 26 U.S.C. §§ A.2(a-b), 63(a-b); Samuel A. Donaldson, Federal Income Taxation of Individuals: Cases, Problems and Materials, 2nd Edition (St. Paul: Thomson/West, 2007), 5-6, 26-27.

[Donaldson-1] Samuel A. Donaldson, Federal Income Taxation of Individuals: Cases, Problems and Materials, 2nd Edition (St. Paul: Thomson/West, 2007), 8-9.

[2007ftrs-2] ^ ^a ^b ^c ^d ^e ^f ^g ^h Internal Revenue Service, United States Department of the Treasury, "2007 Federal Tax Rate Schedules," https://www.irs.gov/pub/irs-prior/i1040tt--2007.pdf.

[3] Samuel A. Donaldson, Federal Income Taxation of Individuals: Cases, Problems and Materials, 2nd Edition (St. Paul: Thomson/West, 2007), 2.

[4] Samuel A. Donaldson, Federal Income Taxation of Individuals: Cases, Problems and Materials, 2nd Edition (St. Paul: Thomson/West, 2007), 2; 26 U.S.C.

[5] 26 U.S.C. § A.1(a-e)

[6] Samuel A. Donaldson, Federal Income Taxation of Individuals: Cases, Problems and Materials, 2nd Edition (St. Paul: Thomson/West, 2007), 5-9.

[7] 26 U.S.C. § A.1(f)

[8] Samuel A. Donaldson, Federal Income Taxation of Individuals: Cases, Problems and Materials, 2nd Edition (St. Paul: Thomson/West, 2007), 8-9 (citing Revenue Procedure 2006-53, 2006-48 I.R.B. 996).

[9] 26 U.S.C. § A.1(f).

[10] Samuel A. Donaldson, Federal Income Taxation of Individuals: Cases, Problems and Materials, 2nd Edition (St. Paul: Thomson/West, 2007), 10; Internal Revenue Service, United States Department of the Treasury, "2007 Federal Tax Rate Schedules," https://www.irs.gov/pub/irs-prior/i1040tt--2007.pdf.

[11] 2021 Tax Brackets | Tax Foundation

[12] Samuel A. Donaldson, Federal Income Taxation of Individuals: Cases, Problems and Materials, 2nd Edition (St. Paul: Thomson/West, 2007), 5; Internal Revenue Service, United States Department of the Treasury, "2007 Federal Tax Rate Schedules," https://www.irs.gov/pub/irs-prior/i1040tt--2007.pdf.

[13] 26 U.S.C. §§ A.2(a-b), 63(a-b); Samuel A. Donaldson, Federal Income Taxation of Individuals: Cases, Problems and Materials, 2nd Edition (St. Paul: Thomson/West, 2007), 5-6, 26-27.

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@@ Line 1: / Line 1: @@
 {{UStaxation}}
-A '''rate schedule''' is a chart that helps [[United States]] taxpayers determine their [[Income tax in the United States|federal income tax]] burden for a particular year.<ref name=Donaldson>Samuel A. Donaldson, ''Federal Income Taxation of Individuals: Cases, Problems and Materials'', 2nd Edition (St. Paul: Thomson/West, 2007), 8-9.</ref><ref name=2007ftrs>Internal Revenue Service, United States Department of the Treasury, "2007 Federal Tax Rate Schedules," http://www.irs.gov/pub/irs-prior/i1040tt--2007.pdf.</ref>  Another name for “rate schedule ” is “rate table.”<ref name="Donaldson"/>
+A '''rate schedule''' is a chart that helps [[United States]] taxpayers determine their [[Income tax in the United States|federal income tax]] for a particular year.<ref name=Donaldson>Samuel A. Donaldson, ''Federal Income Taxation of Individuals: Cases, Problems and Materials'', 2nd Edition (St. Paul: Thomson/West, 2007), 8-9.</ref><ref name=2007ftrs>Internal Revenue Service, United States Department of the Treasury, "2007 Federal Tax Rate Schedules," https://www.irs.gov/pub/irs-prior/i1040tt--2007.pdf.</ref>  Another name for "rate schedule" is "rate table".<ref name="Donaldson"/>
 == Origin ==
-The origin of the current rate schedules is the [[Internal Revenue Code]] of 1986 (IRC),<ref name=2007ftrs/><ref>Samuel A. Donaldson, ''Federal Income Taxation of Individuals: Cases, Problems and Materials'', 2nd Edition (St. Paul: Thomson/West, 2007), 2.</ref> which is separately published as Title 26 of the [[United States Code]].<ref>Samuel A. Donaldson, ''Federal Income Taxation of Individuals: Cases, Problems and Materials'', 2nd Edition (St. Paul: Thomson/West, 2007), 2; 26 U.S.C.</ref>  With that law, the [[U.S. Congress]] created four types of rate tables, all of which are based on a taxpayer’s filing status (e.g., “married individuals filing joint returns,” [[Head of Household|“heads of households"]]).<ref name=2007ftrs/><ref>26 U.S.C. § A.1(a-e)</ref><ref>Samuel A. Donaldson, ''Federal Income Taxation of Individuals: Cases, Problems and Materials'', 2nd Edition (St. Paul: Thomson/West, 2007), 5-9.</ref>
+The origin of the current rate schedules is the [[Internal Revenue Code]] of 1986 (IRC),<ref name=2007ftrs/><ref>Samuel A. Donaldson, ''Federal Income Taxation of Individuals: Cases, Problems and Materials'', 2nd Edition (St. Paul: Thomson/West, 2007), 2.</ref> which is separately published as Title 26 of the [[United States Code]].<ref>Samuel A. Donaldson, ''Federal Income Taxation of Individuals: Cases, Problems and Materials'', 2nd Edition (St. Paul: Thomson/West, 2007), 2; 26 U.S.C.</ref>  With that law, the [[U.S. Congress]] created four types of rate tables, all of which are based on a taxpayer's filing status (e.g., "married individuals filing joint returns," [[Head of Household|"heads of households"]]).<ref name=2007ftrs/><ref>26 U.S.C. § A.1(a-e)</ref><ref>Samuel A. Donaldson, ''Federal Income Taxation of Individuals: Cases, Problems and Materials'', 2nd Edition (St. Paul: Thomson/West, 2007), 5-9.</ref>
 Each year the United States [[Internal Revenue Service]] (IRS) updates rate schedules in accordance with guidelines that Congress established in the IRC.<ref>26 U.S.C. § A.1(f)</ref><ref>Samuel A. Donaldson, ''Federal Income Taxation of Individuals: Cases, Problems and Materials'', 2nd Edition (St. Paul: Thomson/West, 2007), 8-9 (citing ''Revenue Procedure'' 2006-53, 2006-48 I.R.B. 996).</ref>  In general, the IRS bases such adjustments on [[inflation]] and [[cost of living]] increases in the previous year.<ref>26 U.S.C. § A.1(f).</ref>
@@ Line 10: / Line 10: @@
 == Application ==
-The tax rate schedules give tax rates for given levels of [[taxable income]].  There is a complex relationship between taxable income and actual income, making it difficult to draw conclusions from the tables.  Even the marginal tax rates are misleading because there are various laws that relate taxable income to actual income such that an increase of a dollar of actual income results in an increase of more than a dollar in taxable income, thus making the marginal tax rate greater than what is suggested by the table.
+The tax rate schedules give tax rates for given levels of [[taxable income]].  There is a complex relationship between taxable income and actual income, making it difficult to draw conclusions from the tables.  Even the marginal tax rates are misleading because there are various laws that relate taxable income to actual income such that an increase of a dollar of actual income results in an increase of more or less than a dollar in taxable income depending on the circumstances surrounding the increase, thus making the marginal tax rate dependent on an individual taxpayer's personal situation.
 These schedules apply only to regular US income tax, whereas there is a second income tax, the Alternative Minimum Tax, that uses a different schedule.  A taxpayer's tax obligation is the higher of those two income taxes, which makes drawing conclusions from the table even more difficult.
@@ Line 16: / Line 16: @@
 == Format ==
-All rate schedules have an identical format, containing four columns and seven rows (called “brackets”).<ref name=2007ftrs/>  The first two columns indicate the range of taxable income that a taxpayer must have to qualify for a particular tax rate. The third column indicates the tax rate itself.<ref name=2007ftrs/>  The fourth column gives the range of income to which the current marginal rate applies.
+All rate schedules have an identical format, containing four columns and seven rows (called "brackets").<ref name=2007ftrs/>  The first two columns indicate the range of taxable income that a taxpayer must have to qualify for a particular tax rate. The third column indicates the tax rate itself.<ref name=2007ftrs/>  The fourth column gives the range of income to which the current marginal rate applies.
-Given that Congress has prescribed a system of progressive taxation, all but the lowest-earning taxpayers pay distinct rates for different parts of their income.<ref>Samuel A. Donaldson, ''Federal Income Taxation of Individuals: Cases, Problems and Materials'', 2nd Edition (St. Paul: Thomson/West, 2007), 10; Internal Revenue Service, United States Department of the Treasury, "2007 Federal Tax Rate Schedules," http://www.irs.gov/pub/irs-prior/i1040tt--2007.pdf.</ref>
+Given that Congress has prescribed a system of [[progressive tax]]ation, all but the lowest-earning taxpayers pay distinct rates for different parts of their income.<ref>Samuel A. Donaldson, ''Federal Income Taxation of Individuals: Cases, Problems and Materials'', 2nd Edition (St. Paul: Thomson/West, 2007), 10; Internal Revenue Service, United States Department of the Treasury, "2007 Federal Tax Rate Schedules," https://www.irs.gov/pub/irs-prior/i1040tt--2007.pdf.</ref>
-The following are the IRS rate schedules for '''2014''':<ref>2014 Tax Brackets | Tax Foundation, [http://taxfoundation.org/blog/2014-tax-brackets]</ref> <ref>USA Income Tax Rates 2014, [http://www.scopulus.co.uk/taxsheets/usa_taxrates_2014.htm]</ref>
+The following are the IRS rate schedules for '''2021''':<ref>[https://taxfoundation.org/publications/federal-tax-rates-and-tax-brackets/#brackets 2021 Tax Brackets | Tax Foundation]</ref>
 '''Schedule X''' — '''Single'''
@@ Line 30: / Line 30: @@
 ! of the amount over--
 |-
-| $0 || $9,075 || 10%  || $0
+| $0 || $9,950 || 10%  || $0
 |-
-| $9,075 || $36,900 || $907.50 + 15% || $9,075
+| $9,951 || $40,525 || $995.00 + 12% || $9,950
 |-
-| $36,900 || $89,350 || $5,081.25 + 25% || $36,900
+| $40,526 || $86,375 || $4,663.88 + 22% || $40,525
 |-
-| $89,350 || $186,350 || $18,193.75 + 28% || $89,350
+| $86,376 || $164,925 || $14,750.66 + 24% || $86,375
 |-
-| $186,350 || $405,100 || $45,353.75 + 33% || $186,350
+| $164,926 || $209,425 || $33,602.42 + 32% || $164,925
 |-
-| $405,100 || $406,750 || $117,541.25 + 35% || $405,100
+| $209,426 || $523,600 || $47,842.10 + 35% || $209,425
 |-
-| $406,750 || no limit || $118,118.75 + 39.6%  || $406,750
+| $523,601 || no limit || $157,803.00 + 37%  || $523,600
 |}
-'''Schedule Y-1''' — '''Married filing Jointly or Qualifying Widow(er)'''
+'''Schedule Y-1''' — '''Married filing jointly or qualifying widow(er)'''
 {| class="wikitable" style="text-align: right"
 |-
@@ Line 54: / Line 54: @@
 ! of the amount over--
 |-
-| $0 || $18,150 || 10% || $0
+| $0 || $19,900 || 10% || $0
 |-
-| $18,150 || $73,800 || $1,815.00 + 15% || $18,150
+| $19,901 || $81,050 || $1,990.00 + 12% || $19,900
 |-
-| $73,800 || $148,850 || $10,162.50 + 25% || $73,800
+| $81,051 || $172,750 || $9,327.88 + 22% || $81,050
 |-
-| $148,850 || $226,850 || $28,925.00  + 28% || $148,850
+| $172,751 || $329,850 || $29,501.66 + 24% || $172,750
 |-
-| $226,850 || $405,100 || $50,765.00 + 33% || $226,850
+| $329,851 || $418,850 || $67,205.42 + 32% || $329,850
 |-
-| $405,100 || $457,600 || $109,587.50 + 35% || $405,100
+| $418,851 || $628,300 || $95,685.10 + 35% || $418,850
 |-
-| $457,600 || no limit || $127,962.50 + 39.6% || $457,600
+| $628,301 || no limit || $168,992.25 + 37% || $628,300
 |}
-'''Schedule Y-2''' — '''Married Filing Separately'''
+'''Schedule Y-2''' — '''Married filing separately'''
 {| class="wikitable" style="text-align: right"
 |-
@@ Line 77: / Line 77: @@
 ! of the amount over--
 |-
-| $0 || $9,075 || 10%  || $0
+| $0 || $9,875 || 10%  || $0
 |-
-| $9,075 || $36,900 || $907.50 + 15% || $9,075
+| $9,876 || $40,125 || $987.50 + 12% || $9,875
 |-
-| $36,900 || $74,425 || $5,081.25 + 25% || $36,900
+| $40,126 || $85,525 || $4,617.38 + 22% || $40,125
 |-
-| $74,425 || $113,425 || $14,462.50 + 28% || $74,425
+| $85,526 || $163,300 || $14,605.16 + 24% || $85,525
 |-
-| $113,425 || $202,550 || $25,382.50 + 33% || $113,425
+| $163,301 || $207,350 || $33,271.16 + 32% || $163,300
 |-
-| $202,550 || $228,800 || $54,793.75 + 35% || $202,550
+| $207,351 || $311,025 || $47,366.84 + 35% || $207,350
 |-
-| $228,800 || no limit || $63,981.25 + 39.6% || $228,800
+| $311,026 || no limit || $83,652.74 + 37% || $311,025
 |}
-'''Schedule Z''' — '''Head of Household'''
+'''Schedule Z''' — '''Head of household'''
 {| class="wikitable" style="text-align: right"
 |-
@@ Line 100: / Line 100: @@
 ! of the amount over--
 |-
-| $0 || $12,950 || 10% || $0
+| $0 || $14,100 || 10% || $0
 |-
-| $12,950 || $49,400 || $1,295.00 + 15% || $12,950
+| $14,101 || $53,700 || $1,410.00 + 12% || $14,100
 |-
-| $49,400 || $127,550 || $6,762.50 + 25% || $49,400
+| $53,701 || $85,500 || $6,161.88 + 22% || $53,700
 |-
-| $127,550 || $206,600 || $26,300.00 + 28% || $127,550
+| $85,501 || $163,300 || $13,157.66 + 24% || $85,500
 |-
-| $206,600 || $405,100 || $48,434.00 + 33% || $206,600
+| $163,301 || $207,350 || $31,829.42 + 32% || $163,300
 |-
-| $405,100 || $432,200 || $113,939.00 + 35% || $405,100
+| $207,351 || $518,400 || $45,925.10 + 35% || $207,350
 |-
-| $432,200 || no limit || $123,424.00 + 39.6% || $432,200
+| $518,401 || no limit || $154,792.25 + 37% || $518,400
 |}
-'''Caution: These tables shown above are accurate for 2014 only and do not apply for any other year.'''
+'''Caution: These tables shown above are accurate for 2021 only and do not apply for any other year.'''
-For [http://www.scopulus.co.uk/taxsheets/usa_taxrates_2013.htm 2013] and [http://www.scopulus.co.uk/taxsheets/usa_taxrates_2015.htm 2015].
 == Use of rate schedules ==
-To use a rate schedule, a taxpayer must know their filing status and amount of taxable income.<ref>Samuel A. Donaldson, ''Federal Income Taxation of Individuals: Cases, Problems and Materials'', 2nd Edition (St. Paul: Thomson/West, 2007), 5; Internal Revenue Service, United States Department of the Treasury, "2007 Federal Tax Rate Schedules," http://www.irs.gov/pub/irs-prior/i1040tt--2007.pdf.</ref>  Definitions related to one’s filing status can be found in IRC § A.2(a-b), and general guidelines regarding taxable income are described in IRC § A.63(a-b).<ref>26 U.S.C. §§ A.2(a-b), 63(a-b); Samuel A. Donaldson, ''Federal Income Taxation of Individuals: Cases, Problems and Materials'', 2nd Edition (St. Paul: Thomson/West, 2007), 5-6, 26-27.</ref>  Once a taxpayer has made these determinations, he (1) references the pertinent rate schedule, (2) finds the appropriate bracket (based on her taxable income), and (3) uses the formula described in the third column to determine his federal income tax.
+To use a rate schedule, a taxpayer must know their filing status and amount of taxable income.<ref>Samuel A. Donaldson, ''Federal Income Taxation of Individuals: Cases, Problems and Materials'', 2nd Edition (St. Paul: Thomson/West, 2007), 5; Internal Revenue Service, United States Department of the Treasury, "2007 Federal Tax Rate Schedules," https://www.irs.gov/pub/irs-prior/i1040tt--2007.pdf.</ref>  Definitions related to one's filing status can be found in IRC § A.2(a-b), and general guidelines regarding taxable income are described in IRC § A.63(a-b).<ref>26 U.S.C. §§ A.2(a-b), 63(a-b); Samuel A. Donaldson, ''Federal Income Taxation of Individuals: Cases, Problems and Materials'', 2nd Edition (St. Paul: Thomson/West, 2007), 5-6, 26-27.</ref>  Once a taxpayer has made these determinations, he (1) references the pertinent rate schedule, (2) finds the appropriate bracket (based on her taxable income), and (3) uses the formula described in the third column to determine his federal income tax.
-Assume, for example, that Taxpayer A is single and has a taxable income of $175,000 in 2014.  The following steps apply the procedure outlined above:
+Assume, for example, that Taxpayer A is single and has a taxable income of $175,000 in 2021.  The following steps apply the procedure outlined above:
 <blockquote>
 	(1) Because he is single, the pertinent rate table is Schedule X.<ref name=2007ftrs/><br />
-	(2) Given that his income falls between $89,350 and $186,350, he uses the fourth bracket in Schedule X.<ref name=2007ftrs/><br />
+	(2) Given that his income falls between $164,296 and $209,425, he uses the fifth bracket in Schedule X.<ref name=2007ftrs/><br />
-	(3) His federal income tax will be “$18,193.75 plus 28% of the amount over
+	(3) His federal income tax will be "$33,602.42 plus 32% of the amount over
-		$89,350.”<ref name=2007ftrs/> Applying this formula to Taxpayer A, one arrives at the
+		$164,295."<ref name=2007ftrs/> Applying this formula to Taxpayer A, one arrives at the
 		following result:<br />
-		$18,193.75 + (0.28 * ($175,000 - $89,350)) =<br />
+		$33,602.42 + (0.32 * ($175,000 - $164,295)) =<br />
-		$18,193.75 + (0.28 * $85,650) =<br />
+		$33,602.42 + (0.28 * https://en.wikipedia.org/wiki/Standard_deduction$85,650) =<br />
-		$18,193.75 + $23,982 = $42,175.75.<br />
+		$33,602.42 + $3,425.60 = $37,028.02.<br />
 </blockquote>
-Accordingly, Taxpayer A must pay $42,175.75 in federal income taxes for 2014.  Since his income is in the fourth bracket, his marginal tax rate for each additional dollar he earns is 28%, but his effective tax rate is 24% ($42,175.75/$175,000 is .241).
+Accordingly, Taxpayer A must pay $37,028.02 in federal income taxes for 2021.  Since his income is in the fifth bracket, his marginal tax rate for each additional dollar he earns is 32%, but his effective tax rate is 21% ($37,028.02/$175,000 is .212).
 ==See also==
 *[[Income tax in the United States]]
 *[[Progressivity in United States income tax]]
+*[[Standard deduction]]
 '''General:'''
 *[[Tax bracket]]