For a work credit card, fees that are incurred are deductible. The question would be "did I get this credit card because of my business and do I use it for my business with little personal (or none for the IRS) use." Per the IRS: To be deductible, a business expense must be both ordinary and necessary. An ordinary expense is one that is common and accepted in your trade or business. A necessary expense is one that is helpful and appropriate for your trade or business. This link has some more Information.
Business
expenses
