You might be subject to an IRS tax audit.
Crystal Stranger, president of 1st Tax and author of “The Small Business Tax Guide,” recommended keeping personal and business expenses separate to avoid an IRS tax audit. “If your business is audited and you have used personal credit cards to pay expenses, it opens the door to a full audit of your personal return as well.”

View Full Article by Paul Sisolak at: http://www.gobankingrates.com/personal-finance/improve-credit-score-separating-business-pleasure/