Your marginal tax bracket determines how much of the earnings from savings and investments you get to keep after taxes. Below are the four individual tax rate schedules for 2003:
Individual Tax Rate Schedules for 2003 (Revised May 6, 2003)
Filing Status
Taxable Income ($)
Effective Rate (%)
Married Filing Jointly
0 to 14,000
10
14,001 to 56,800
15
56,801 to 114,650
25
114,651 to 174,700
28
174,701 to 311,950
33
311,951 and higher
35
Head of Household
0 to 10,000
10
10,001 to 38,050
15
38,051 to 98,250
25
98,251 to 159,100
28
159,101 to 311,950
33
311,951 and higher
35
Single
0 to 7,000
10
7,001 to 28,400
15
28,401 to 68,800
25
68,801 to 143,500
28
143,501 to 311,950
33
311,951 and higher
35
Married Filing Separately
0 to 7,000
10
7,001 to 28,400
15
28,401 to 57,325
25
57,326 to 87,350
28
87,351 to 155,975
33
155,976 and higher
35
Tax-Exempt and Taxable Yields Compared*
Tax-Exempt Yield (%)
Taxable Equivalent Yield (%) for Tax Rate of:
15% Tax Bracket
25% Tax Bracket
28% Tax Bracket
33% Tax Bracket
35% Tax Bracket
2.0
2.35
2.66
2.77
2.98
3.08
2.5
2.94
3.33
3.47
3.73
3.85
3.0
3.53
4.00
4.17
4.48
4.62
3.5
4.18
4.66
4.86
5.22
5.38
4.0
4.71
5.33
5.55
5.97
6.15
4.5
5.29
6.00
6.25
6.71
6.92
5.0
5.88
6.66
6.94
7.46
7.69
5.5
6.47
7.33
7.63
8.20
8.46
6.0
7.06
8.00
8.33
8.95
9.23
6.5
7.65
8.66
9.02
9.70
10.00
7.0
8.24
9.33
9.72
10.44
10.77
*Federal income tax rates only. Does not include state income tax.
If you cannot find a specific rate on the chart you can compare yields by using the following formula:
Example: Assume you are in the 25% tax bracket, and have an account with a 4.5% tax-free yield. To get the equivalent taxable yield, divide 4.5% by 75% (100% - 25%). The taxable yield is 6.%.
Once you know how to calculate tax equivalent yields, it's time to go shopping and compare rates of return offered on various investment products. Next, determine which will pay a higher after-tax rate.
Generally speaking, people in the 10% and 15% tax brackets earn more after taxes with taxable saving and investment products. Those in higher tax brackets, usually do better with tax-exempts.