The mortgage interest deduction is widely used by the majority of individuals who itemize their deductions. In fact, the size of the average mortgage interest deduction alone persuades many taxpayers to itemize their deductions. It is not without cause, therefore, that two recent developments impacting the mortgage interest deserve being highlighted. These developments involve new reporting requirements designed to catch false or inflated deductions; and a case that effectively doubles the size of the mortgage interest deduction available to joint homeowners. But first, some basics.

Many federal income taxes are paid from amounts that are withheld from payments to the taxpayer. For instance, amounts roughly equal to an employee's estimated tax liability are generally withheld from the employee's wages and paid over to the government by the employer. In contrast, estimated taxes are taxes that are paid throughout the year on income that is not subject to withholding. Individuals must make estimated tax payments if they are self-employed or their income derives from interest, dividends, investment gains, rents, alimony, or other funds that are not subject to withholding.

Foreign travel expenses may be subject to allocation if the taxpayer engages in personal activities while traveling on business. A portion of the foreign travel expenses may be nondeductible if the individual engages in substantial nonbusiness activity. The allocation rules apply where the individual engages in substantial nonbusiness activity at, near, or beyond the business destination; or, when the personal destination is en route to and from the business destination.

Small businesses received some welcomed news in October with passage of the Protecting Affordable Coverage for Employees (PACE) Act. The new law revises the definition of small employer for purposes of market reforms under the Affordable Care Act (ACA). The PACE Act is intended to help protect small businesses from potential health care premium increases. At the same time, many small businesses wait for expected relief from potential penalties for stand-alone health reimbursement arrangements (HRAs) deemed not to comply with the ACA.

After acknowledging earlier this year that hackers breached one of its popular online apps, the IRS has promised more identity theft protections in the 2016 filing season. The IRS, along with partners in the tax preparation community, has identified and tested more than 20 new data elements on returns to help detect and prevent identity-theft related filings. The agency is also working to prevent criminals from accessing tax-time financial products.

As the calendar approaches the end of 2015, it is helpful to think about ways to shift income and deductions into the following year. For example, spikes in income from selling investments or other property may push a taxpayer into a higher income tax bracket for 2015, including a top bracket of 39.6 percent for ordinary income and short-term capital gains, and a top bracket of 20 percent for dividends and long-term capital gains. Adjusted gross incomes that exceed the threshold for the net investment income (NII) tax can also trigger increased tax liability. Accordingly, traditional year-end techniques to defer income or to accelerate deductions can be useful.

For a business to start writing off the cost of depreciable equipment and property, it is necessary that the equipment be placed in service. To write off costs in 2015, the equipment must be placed in service by December 31, 2015. The "placed-in-service" requirement applies, for example, for taking depreciation, especially first-year bonus depreciation, under Code Sec. 168, expensing of the cost of property under Code Sec. 179, and other write-offs such as the investment tax credit under Code Sec. 46.

As an individual or business, it is your responsibility to be aware of and to meet your tax filing/reporting deadlines. This calendar summarizes important tax reporting and filing data for individuals, businesses and other taxpayers for the month of August 2015.

Preliminary information from the 2015 filing season shows a mixed bag of success and failures for the IRS. The IRS successfully processed returns and issued refunds, taking into account new requirements under the Affordable Care Act. At the same time, taxpayers experienced significant difficulties in contacting the IRS and tax-related identity theft increased compared to last year.

As an individual or business, it is your responsibility to be aware of and to meet your tax filing/reporting deadlines. This calendar summarizes important federal tax reporting and filing data for individuals, businesses and other taxpayers for the month of June 2015.