It's true that most insurers only offer standard one-year policies, with prorated refunds if you cancel before the 12 months are up. But, with more and more people working in non-traditional ways (gig economy, freelancers, event specialists, and so on), the business insurance industry is evolving to keep up. There's at least one company that specializes in business insurance with short-term options: hourly, daily, monthly, depending on the company's needs.