My partner and I have easily had 20 or more business credit cards over the years, and that includes the four or five we now use on a regular basis. Most of them are Chase credit cards that earn valuable rewards we can pool in a single account. Ultimately, I use my Ink Business Unlimited® Credit Card for the bulk of my business spending and bills. Not only does it come with no annual fee and an intro APR offer for purchases, but it also earns 1.5% cash back on purchases. We pool all our rewards from business and personal Chase credit cards into a single account before we redeem. This strategy makes redeeming rewards incredibly convenient, and it also unlocks the option for premium travel redemptions through Chase airline and hotel partners.Business credit cards can help all kinds of entrepreneurs and business owners, regardless of how big the business is or how old it is. So whether you’re the CEO of a bustling business or a part-time freelancer, here’s how a business credit card could help you. How business credit cards workBusiness credit cards work similarly to personal credit cards. They can be a useful tool that can make it convenient to pay for expenses while helping you build credit and earn rewards. But if you don’t use credit cards responsibly, they can also hurt your credit and leave you in debt.Most business cards have higher credit limits, and the spending categories are usually business-specific. Instead of earning rewards for categories like groceries and gas, businesses can earn rewards on travel, utilities and office supplies.Like some personal credit cards, a business card may also come with a 0% introductory APR period, where you won’t accrue interest on new purchases for a period of time. Some also have a lucrative welcome bonus. Once you start accumulating rewards, you can then redeem them to help offset other business expenses. Depending on your issuer, you may use rewards toward travel, a statement credit or new business purchases. Who qualifies for a business card?Any business owner, from dog walkers to corporate leaders, is eligible for a business credit card. Whether you’re a sole proprietor, self-employed, in a partnership or lead a corporation, you can qualify for a business credit card. Gig workers and people who are self-employed can also qualify for a small-business credit card. You don’t even need employees on the payroll.The age of your business doesn’t matter — any business, including a startup, can qualify for a business credit card. If you don’t have a business credit history, the lender will use your personal credit score and credit history to help evaluate your creditworthiness. By getting a business credit card, you’ll be able to start developing a credit profile for your business. But remember that there’s a good chance you’ll still be personally liable for any debt incurred on business credit cards.Can you use your personal credit card for your business?There are no rules or laws that say you can’