Reference Room

Shaded numbers are unofficial; TBD  means numbers are to be determined from data not yet available. Tax rate schedules for 2011 and the AMT exemption amounts set forth below are now official.

Our reference room provides an easy way to find information on the following:

  • Key tax numbers that are adjusted from time to time for inflation, such as personal exemptions and the standard deduction.
  • Tax rate schedules (tax brackets) including the latest available schedules and links to prior year schedules.
  • Retirement savings, including limits on IRA and 401k contributions.
  • Interest rates that are used to calculate the penalty for underpayment of estimated tax and interest on underpayments and overpayments of individual taxpayers.
Key Tax Numbers 2010 2011 2012
Personal exemptions $3,650 $3,700 $3,800
Standard deduction
  married filing jointly
  head of household
  single or separate

11.400
8,400
5,700

11.600
8,500
5,800

11,900
8,700
5,950
Additional amount for aged or blind
  married
  single


1,100
1,400


1,150
1,450


1,150
1,450
Kiddie tax exemption 950 950 950
Gift tax exclusion
  individual
  non-citizen spouse

13,000
134,000

13,000
136,000

13,000
139,000
Standard mileage rates
  Business
      Basis reduction
  Medical and moving
  Charitable
 

50.0¢
23.0¢
16.5¢
14.0¢

51.0¢/55.5¢
22.0¢
19.0¢/23.5¢
14.0¢
changed 7/1/11

55.5¢
23.0¢
23.0¢
14.0¢
AMT exemption amount
  married filing jointly
  single

72,450
47,450

74,450
48,450

TBD
TBD
TBD = to be determined (data not yet available).
Changes in AMT exemption amount due to legislation, not inflation adjustment.
2012 Tax Rate Schedules
For tax year 2012 (returns filed in 2013)
 Click here for 2011 rate schedules
 
 

Single

Taxable income is over But not over The tax is Plus Of the amount over
$0 8,700 $0.00 10% $0
8,700 35,350 870.00 15% 8,700
35,350 85,650 4,867.50 25% 35,350
85,650 178,650 17,442.50 28% 85,650
178,650 388,350 43,482.50 33% 178,650
388,350   112,683.50 35% 388,350

 

Married Filing Jointly
Qualifying Widow(er)

Taxable income is over But not over The tax is Plus Of the amount over
$0 17,400 $0.00 10% $0
17,400 70,700 1,740.00 15% 17,400
70,700 142,700 9,735.00 25% 70,700
142,700 217,450 27,735.00 28% 142,700
217,450 388,350 48,665.00 33% 217,450
388,350   105,062.00 35% 388,350

 

Head of Household

Taxable income is over But not over The tax is Plus Of the amount over
$0 12,400 $0.00 10% $0
12,400 47,350 1,240.00 15% 12,400
47,350 122,300 6,482.50 25% 47,350
122,300 198,050 25,220.00 28% 122,300
198,050 388,350 46,430.00 33% 198,050
388,350   109,229.00 35% 388,350

 

Married Filing Separately

Taxable income is over But not over The tax is Plus Of the amount over
$0 8,700 $0.00 10% $0
8,700 35,350 870.00 15% 8,700
35,350 71,350 4,867.50 25% 35,350
71,350 108,725 13,867.50 28% 71,350
108,725 194,175 24,332.50 33% 108,725
194,175   52,531.00 35% 194,175

 

Retirement Savings 2010 2011 2012
IRA contributions
  under age 50
  50 or older

5,000
6,000

5,000
6,000

5,000
6,000
Deduction phase-out begins
(employer plan participants)
  single
  married filing jointly


56,000
89,000


56,000
90,000


58,000
92,000
Roth IRA phase-out begins
  single
  married filing jointly

105,000
167,000

107,000
169,000

110,000
173,000
401k contributions
  under age 50
  50 or older

16,500
22,000

16,500
22,000

17,000
22,500
SIMPLE accounts 11,500 11,500 11,500
Social security wage base 106,800 106,800 110,100
Retirement savings contribution credit
  Married filing jointly
    50% credit up to
    20% credit up to
    10% credit up to
  Head of household
    50% credit up to
    20% credit up to
    10% credit up to
  Other taxpayers
    50% credit up to
    20% credit up to
    10% credit up to



33,500
36,000
55,500

25,125
27,000
41,625

16,750
18,000
27,750



34,000
36,500
56,500

25,500
27,375
42,375

17,000
18,250
28,250



34,500
37,500
57,500

25,875
28,125
43,125

17,250
18,750
28,750
TBD = to be determined (data not yet available).
Underpayment Rates
Rates used to calculate penalty for underpayment of
estimated tax and interest on tax underpayments
and overpayments for individuals
First quarter 2004 4%
Second quarter 2004 5%
Third quarter 2004 4%
Fourth quarter 2004 5%
First quarter 2005 5%
Second quarter 2005 6%
Third quarter 2005 6%
Fourth quarter 2005 7%
First quarter 2006 7%
Second quarter 2006 7%
Third quarter 2006 8%
Fourth quarter 2006 8%
First quarter 2007 8%
Second quarter 2007 8%
Third quarter 2007 8%
Fourth quarter 2007 8%
First quarter 2008 7%
Second quarter 2008 6%
Third quarter 2008 5%
Fourth quarter 2008 6%
First quarter 2009 5%
Second quarter 2009 4%
Third quarter 2009 4%
Fourth quarter 2009 4%
First quarter 2010 4%
Second quarter 2010 4%
Third quarter 2010 4%
Fourth quarter 2010 4%
First quarter 2011 3%
Second quarter 2011 4%
Third quarter 2011 4%
Fourth quarter 2011 3%
First quarter 2012 3%
Second quarter 2012 3%

@Fairmark

 


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