A disregarded entity refers to a business entity with one owner that is not recognized for tax purposes as an entity separate from its owner. A single-member LLC ( "SMLLC"), for example, is considered to be a disregarded entity. For federal and state tax purposes, the sole member of a SMLLC disregards the separate legal status of the SMLLC otherwise in force under state law.

Building on earlier steps to help taxpayers buffeted by the economic slowdown, the IRS recently enhanced its "Fresh Start" initiative. The IRS has announced penalty relief for unemployed individuals who cannot pay their taxes on time and has increased the threshold amount for streamlined installment agreements.

The just-released 2011 IRS Data Book provides statistical information on IRS examinations, collections and other activities for the most recent fiscal year ended in 2011. The 2011 Data Book statistics, when compared to the 2010 version, shows, among other things, a notable increase in the odds of being audited within several high-income categories.

The IRS reopened its offshore voluntary disclosure program in early 2012 in response to what the government described as strong interest among taxpayers. The reopened program, the third of its type in recent years, encourages taxpayers with unreported foreign accounts to make full disclosures in exchange for a reduced penalty framework. Like its predecessors, the terms and conditions of the reopened program are very complex. The IRS has promised to provide more details. In the meantime, the prior offshore disclosure programs are guides to how the IRS intends to implement the third, reopened program.

The IRS has released much-anticipated temporary and proposed regulations on the capitalization of costs incurred for tangible property. They impact how virtually any business writes off costs that repair, maintain, improve or replace any tangible property used in the business, from office furniture to roof repairs to photocopy maintenance and everything in between. They apply immediately, to tax years beginning on or after January 1, 2012.

The business standard mileage rate, which many employers use to reimburse employees for business miles driven, is 55.5 cents-per-mile for 2012, the IRS has announced. This reflects no change from the second half of 2011.

Claiming a charitable deduction for a cash contribution is straightforward. The taxpayer claims the amount paid, whether by cash, check, credit card or some other method. Taxpayers need only a bank record or a written acknowledgment from the charity. For contributions of property, the rules can be more complex.

Looking back over 2011, the IRS, Congress and the courts made many tax decisions impacting taxpayers of all types. Some tax developments were taxpayer-friendly; others imposed new requirements on taxpayers. Here is a brief rundown of the top 10 federal tax developments of 2011.

The Foreign Account Tax Compliance Act (FATCA), enacted in 2010, requires certain U.S. taxpayers to report their interests in specified foreign financial assets. The reporting requirement may apply if the assets have an aggregate value exceeding certain thresholds. The IRS has released Form 8938, Statement of Specified Foreign Financial Assets, for this reporting requirement under FATCA.

As 2012 gets underway, Congress has extended the employee-side payroll tax cut but a laundry list of tax incentives have expired and their renewal is in doubt. The fate of these incentives, along with the Bush-era tax cuts, will dominate debate in Washington D.C. in 2012. At the same time, tax planning in a time of uncertainty appears to have become the new normal.