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Understanding How Income Is Taxed
Posted By Jim On 03/14/2011 @ 7:15 am In Taxes | 8 Comments
Remember when Warren Buffett famously declared that he paid a lower tax rate than his administrative assistant ? It probably confused a lot of people who aren’t familiar with the myriad of ways our income is taxed and that confusion can lead to misplaced frustration and anger. With how charged politics can be, it’s not uncommon for people to get really passionate and fired up over things that they’ve misunderstood.
A prime example, outside of money and politics, is the issue of vaccines and autism. The link between the two was based heavily on the fraudulent work of Dr. Andrew Wakefield  in what has now been declared an “elaborate fraud.” Yet autism is a very real problem, one whose cause is still unknown, and people still insist on not vaccinating their children. While I think I have a right to tell people what to do, the fact that this vehement rejection of vaccines is based mostly on a fraud is just one example of this.
So today, I hope to explain how our income is taxed and hopefully that will remove some of the existing, incorrect, ideas some people have about our tax structure.
The largest tax that most people will pay is income tax. Basically, income tax is assessed on money you earn from your job. It’s declared on your Form W-2 , your employer withholds the tax payments, and you are taxed based on the federal income tax rates . The tax rates are marginal tax rates, so the bracket you’re in will dictate how much your next dollar is taxed. For example, as a single filer , your first $8,500 of income (after adjusting for deductions) is taxed at 10%. The next $26,000 earned will be taxed at 15%, and so on. Your actual tax rate will never be as high as your tax bracket. It’s mathematically impossible.
The issue of marginal tax rates is one of the most misunderstood ideas in all of taxation. Many erroneously believe that moving into a higher bracket subjects all of your earnings to the higher rate. That is incorrect.
There are a few other sources of income where income tax is assessed, such as bank interest. Interest you earn from your deposit accounts, like savings accounts and certificates of deposit, will be taxed at your income tax rate as well.
In addition to income tax, your salary will also be assessed FICA. FICA stands for the Federal Insurance Contributions Act and it covers Social Security and Medicare. Social Security, otherwise known as OASDI (Old Age, Survivors, Disability Insurance), is assessed at 6.2% of the first $106,800 you earn. Medicare is assessed at 1.45%, with no limit. (for 2011, the 6.2% OASDI portion of FICA will be reduced to 4.2%)
FICA is paid by both employees and employers, 50-50. Self-employed persons pay both halves.
FICA is only assessed on wages, so income from bank interest and other sources are not assessed this “tax.”
Long term capital gains is assessed on capital gains where the asset has been held for more than 12 months. This is most often applied to the sale of stock. Qualified dividends  is another example of income that is taxed as long term capital gains.
Long term capital gains rates are quite favorable. It is 15% for those in the 25% to 35% tax brackets and 0% for those in the lower tax brackets. As you can see, with Warren Buffett earning the bulk of his income as qualified dividends taxed at 15%, his rate will be lower than that of his administrative assistant who pays ordinary income tax.
If you sell a stock that you’ve owned for less than one year, it’s subject to short term capital gains rates. The short term capital gains rate is simply your income tax rate. The gains are treated the same as bank interest for purposes of calculating taxes due.
Finally, there is one notable exception to the long term capital gains rule when it comes to principal residences. When you sell your principal residence (defined as someplace you’ve owned the home for at least two years and lived in it for 2 of the last 5 years), you can exclude $250,000 of the gain from your home (this doubles to $500,000 if you and another person owned the home) as long as you haven’t claimed this exclusion in the previous two years.
As you can see, the tax rates are highest on wages – income you earn from your job. One of the biggest complaints about the Bush tax cuts was how much it benefited the wealthy, who have more capital to put into the stock market and other favorably taxed investments. Ultimately, it’s important to understand how your income is taxed so that you can make smart decisions about where to put your money.
How does Warren Buffett pay such a low tax rate? Long term capital gains. Most of his income is taxed as long term capital gains and that pulls any “salary” he may earn from his day job. Contrast that to his secretary, who will likely see most of his or her income as salary and thus subjected to the regular federal income tax rates.
(Photo: alancleaver )
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 he paid a lower tax rate than his administrative assistant: http://www.timesonline.co.uk/tol/money/tax/article1996735.ece
 fraudulent work of Dr. Andrew Wakefield: http://www.cnn.com/2011/HEALTH/01/05/autism.vaccines/index.html
 Form W-2: http://www.bargaineering.com/articles/form-w2.html
 federal income tax rates: http://www.bargaineering.com/articles/federal-income-irs-tax-brackets.html
 single filer: http://www.bargaineering.com/articles/single-head-household-filing-status.html
 Qualified dividends: http://www.bargaineering.com/articles/qualified-dividend.html
 alancleaver: http://www.flickr.com/photos/alancleaver/4122172006/sizes/m/
Thank you for reading!