Before doing anything else, you need to lay the groundwork for your business.
To make your business legal (even if it’s just a freelance personal training venture), you will need to register as a Limited Liability Company (LLC) or other official entity beyond sole proprietor. This typically can be done online through your local government. The fees for registering your business will likely range from a one-time payment of $50-$100 with some states requiring much smaller renewal fees each year. Registering for an LLC can give your small business more credibility, provide liability protection, and offer more flexibility when tax time comes.