Did you know that bonus 50% first-year depreciation will no longer be available to your business in 2014 and beyond? And that the Section 179 expensing limit, which allows you to deduct qualified costs immediately instead of expensing them over time, will tumble to $25,000 from $500,000, where it’s been for the last four years? These are just a few of the changes that businesses should prepare for this year. While many tax rules are permanent, others are written to expire at some point in the future. Some are extended and given new deadlines, but a significant number of popular “extenders” terminated at the end of 2013, including both business credits and deductions.