You may also have that feeling that you should have done more throughout the year to plan for your 2015 taxes. In most cases, it is not too late to begin the planning. According to an article on the Business News Daily website, you can still prepare for the season that lye ahead.
http://www.businessnewsdaily.com/8580-year-end-tax-prep.html
Much is to be said for automating your tax preparation. In most case, businesses have QuickBooks helping to keep track of expenses. That is good for reviewing what your business expenses are and making sure you have them categorized correctly. It is also important to know what tax law changes have effected you and your business.
As always, if this becomes overwhelming, you can consult an accounting firm (Hint, Hint) to help you with this. What you spend on expert advice, may be able to save you in the long run.