Understanding Tax Brackets: Interactive Income Tax Visualization

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How is your income distributed across tax brackets?

I previously made a graphical visualization of income and marginal tax rates. That graph tried to show alot of info on the same graph, i.e. the breakdown of income tax brackets for incomes ranging from $10,000 to $3,000,000. It was nice looking, but I think several people were confused about how to read the graph. This Sankey graph is a more detailed look at the tax breakdown for one specific income. You can enter your (or any other) profile and see how taxes are distributed across the different brackets. It can help (as the other tried) to better understand marginal and average tax rates. This tool only looks at US Federal Income taxes and ignores state, local and Social Security/Medicare taxes.


Instructions for using the visual tax calculator:

  • Select filing status: Single, Married Filing Jointly or Head of Household. For more info on these filing categories see the IRS website
  • Enter your regular income and capital gains income. Regular income is wage or employment income and is taxed at a higher rate than capital gains income. Capital gains income is typically investment income from the sale of stocks or dividends and taxed at a lower rate than regular income.
  • Move your cursor or click on the Sankey graph to select a specific link. This will give you more information about how income in a specific tax bracket is being taxed.
  • **Click Here to view other financial-related tools and data visualizations from engaging-data**

As seen with the marginal rates graph, there is a big difference in how regular income and capital gains are taxed. Capital gains are taxed at a lower rate and generally have larger bracket sizes. Generally, wealthier households earn a greater fraction of their income from capital gains and as a result of the lower tax rates on capital gains, these household pay a lower effective tax rate than those making an order of magnitude less in overall income.

Here are two tables that lists the marginal tax brackets in the United States in 2018 that form the basis of the calculations in the calculator. 2019’s numbers are pretty similar.

US Tax Brackets and Rates for 2018
Rate Single
Taxable Income Over
Married Filing Joint
Taxable Income Over
Heads of Households
Taxable Income Over
10% $0 $0 $0
12% $9,525 $19,050 $13,600
22% $38,700 $77,400 $51,800
24% $82,500 $165,000 $82,500
32% $157,500 $315,000 $157,500
35% $200,000 $400,000 $200,000
37% $500,000 $600,000 $500,000

 
You can see that tax rates are much lower for capital gains in the table below than for regular income (table above).

Capital Gains Brackets for 2018
Single
Capital Gains Over
Married Filing Jointly
Capital Gains Over
Heads of Households
Capital Gains Over
0% $0 $0 $0
15% $38,700 $77,400 $51,850
20% $426,700 $480,050 $453,350

For those not visually inclined, here is a written description of how to apply marginal tax rates. The first thing to note is that the income shown here in the graphs is taxable income, which simply speaking is your gross income with deductions removed. The standard deduction for 2018 range from $12,000 for Single filers to $24,000 for Married filers.

  • If you are single, all of your regular taxable income between 0 and $9,525 is taxed at a 10% rate. This means that your all of your gross income below $12,000 is not taxed and your gross income between $12,000 and $21,525 is taxed at 10%.
  • If you have more income, you move up a marginal tax bracket. Any taxable income in excess of $9,525 but below $38,700 will be taxed at the 12% rate. It is important to note that not all of your income is taxed at the marginal rate, just the income between these amounts.
  • Income between $38,700 and $82,500 is taxed at 24% and so on until you have income over $500,000 and are in the 37% marginal tax rate . . .
  • Thus, different parts of your income are taxed at different rates and you can calculate an average or effective rate (which is shown in the summary table).
  • Capital gains income complicates things slightly as it is taxed after regular income. Thus any amount of capital gains taxes you make are taxed at a rate that corresponds to starting after you regular income. If you made $100,000 in regular income, and only $100 in capital gains income, that $100 dollars would be taxed at the 15% rate and not at the 0% rate, because the $100,000 in regular income pushes you into the 2nd marginal tax bracket for capital gains (between $38,700 and $426,700).

 
Data and Tools:
Tax brackets and rates were obtained from the IRS website and calculations were made using javascript and code modified from the Sankeymatic plotting website.

tax brackets visualization




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