Now available for ordering from the IRS is the 2013 IRS Tax Calendar for Small Businesses and Self-Employed. This is a valuable tool for the finance office as it contains dates by which various forms must be filed and other tax-related tasks must be accomplished. Never miss another (IRS-related) deadline!
The link to place your order (up to 5 FREE, including postage) is http://www.irs.gov/Businesses/Small-Businesses-&-Self-Employed/Tax-Calendar-for-Small-Businesses-and-Self-Employed-(Publication-1518). Or just input "2013 IRS small business calendar" into a search engine and it should get you there.
You might find some of the other products offered by the IRS helpful. Go to: http://www.irs.gov/Businesses/Small-Businesses-&-Self-Employed/Small-Business-Products-Online-Ordering.