Summer is here, so you might be thinking about getting some vacation time. If you’re self-employed or a business owner, you have a golden opportunity for combining business with pleasure travel for a few extra days and offset some of the cost with a tax deduction. But be careful, or you might not qualify for the write-offs you’re expecting. Combining business with pleasure travel: basic rules Business travel expenses can potentially be deducted if the travel is within the United States and the expenses are: “Ordinary and necessary” and Directly related to the business. Note: The tax rules for foreign business travel are different from those for domestic travel. Business owners and the self-employed are generally eligible to deduct business travel expenses if they meet the tests described...