What is S/P in “Tax Deduction S/P”?
From reading the manual, SP means summary punching.  Summary punching is the automatic preparation of one total card to   replace a group of detail cards.
S & P's site has a methodology link that contains the following which may be of use: Market Capitalization. Unadjusted market capitalization of US$ 4.6   billion or more for  the S&P 500, US$ 1.2 billion to US$ 5.1 billion   for the S&P MidCap 400, and US$ 350  million to US$ 1.6 billion for   the S&P SmallCap 600. The market cap of a potential  addition to an   index is looked at in the context of its short- and medium-term   historical  trends, as well as those of its industry. These ranges are   reviewed from time to time to  assure consistency with market   conditions.  Liquidity. Adequate liquidity and reasonable price – the   ratio of annual dollar value  traded to float adjusted market   capitalization should be 1.00 or greater, and the company  should   trade a minimum of 250,000 shares in each of the six months leading up   to the  evaluation date.  Domicile. U.S. companies. For index purposes,   a U.S. company has the following  characteristics:  The final determination of domicile eligibility is made by the U.S.   Index Committee. I hate to point to Wikipedia as an answer, but it does describe exactly what you are looking for... The S&P 500 is a free-float   capitalization-weighted index   published since 1957 of the prices of   500 large-cap common stocks actively   traded in the United States. The   stocks included in the S&P 500 are   those of large publicly held companies   that trade on either of the two   largest American stock market   exchanges; the New York Stock Exchange   and the NASDAQ. The components of the S&P 500 are   selected by committee... The committee   selects the companies in the S&P 500   so they are representative of the   industries in the United States   economy. In addition, companies that   do not trade publicly (such as those   that are privately or mutually held)   and stocks that do not have sufficient   liquidity are not in the index. The S&P is a capitalization weighted index.  If a stock price goes up, then it comprises more of the total index.  If a stock goes down, it comprises less, and if it goes down too much, the committee will likely replace it. So to answer your question, if one stock were to suddenly skyrocket, nothing would happen beyond the fact that the index was now worth more and that particular stock would now make up a larger percentage of the S&P 500 index. That looks very much like an S&P 500 E-Mini index future.  However, ES1 is a strange symbol.  Futures have the month of expiry encoded in their symbol as well:  http://commodities.about.com/od/understandingthebasics/ss/futurescontract_3.htm For example, the September 2011 future in this series would be ESU1. I'm not very familiar with Bloomberg so perhaps this is the front contract (i.e. the one that's closest to expiry (in the is case the September 2011 one)). Only problem is that prices don't exactly match what CME has (high of 1190 and low of 1186.25, for when this page gets out of date):  http://www.cmegroup.com/trading/equity-index/us-index/e-mini-sandp500.html  - but they are so close I suspect it must be some sort of S&P 500 index future. Dow Jones: http://en.wikipedia.org/wiki/Historical_components_of_the_Dow_Jones_Industrial_Average  NASDAQ: http://en.wikipedia.org/wiki/NASDAQ-100 (scroll down) S&P Tricky. From what I can find, you need to be in Harvard Business School, a member of CRSP, or have access to Bloomberg's databases. S&P did have the info available years ago, but no longer that I can find. I am a very light TurboTax user and have expensed a laptop in the past (since it was used exclusively for work) and used the itemized deduction there and has no issues.  Just not sure if there was a limit or anything of note to realize ahead of time.  Thanks! If you are married filing separately, you need to choose the same type of deduction (standard or itemized) as your spouse. Since you checked the box on line 23b, you indicated that your spouse chose the standard deduction, so you must use the standard deduction also.  The standard deduction for married filing separately this year is $6300, but because you checked one of the boxes for yourself in 23a, you get to add another $1250 to your standard deduction, for a total deduction of $7550. This number belongs in line 24. Is this right? The example is slightly off. Google would be running a cafeteria that can be subsidized. Employees pay an amount to buy food. Not every one spends the same amount or eats the same amount of food. If someone doesn't use cafeteria; he doesn't get more money. For example, suppose John Doe makes $100,000 a year taxed at a rate of 20%, for a take home pay of $80,000. He spends $10,000 on food. His employer Corporation decides to give him all of his food and deduct it as a business expense - costing them $10,000. But now they can pay John Doe an amount so his take home pay will be reduced by $10,000 - $87,500 The company is now spending $97500 employing John Doe, for a savings of $2500$. If a scheme is devised specifically to evade taxes; then it is invalid. In this case Bill may buy groceries worth only $5000. So keep track of which employee buys how much groceries in added cost of Google. Plus one can't really call it a business expense. I'm not an expert, but here's my $0.02. Deductions for business expenses are subject to the 2% rule. In other words, you can only deduct that which exceeds 2% of your AGI (Adjusted Gross Income). For example, say you have an AGI of $50,000, and you buy a laptop that costs $800. You won't get a write-off from that, because 2% of $50,000 is $1,000, and you can only deduct business-related expenses in excess of that $1,000. If you have an AGI of $50,000 and buy a $2,000 laptop, you can deduct a maximum of $1,000 ($2,000 minus 2% of $50,000 is $2,000 - $1,000 = $1,000). Additionally, you can write off the laptop only to the extent that you use it for business. So in other words, if you have an AGI of $50,000 and buy that $2,000 laptop, but only use it 50% for business, you can only write off $500. Theoretically, they can ask for verification of the business use of your laptop. A log or a diary would be what I would provide, but I'm not an IRS agent.