The good news for you is that, especially if you already own a dog, you might be able to easily start an at-home dog day care business. Doggy day care can be quite lucrative-most centers charge an average of $25/day. That means that, even if you care for just four dogs a day, you can easily gross $100.What it takes to start a dog day care. 1. Check your local ordinances. 2. Obtain a business license and insurance. 3. Obtain dog supplies. 4. Advertise your dog care business. 5. Qualify your customers. 6. Set your prices fairly. 7. Expand your services-slowly.. While there is no federal licensing requirement to open a dog day care, states and counties may require that you purchase a dog care license. The license itself cannot be purchased until your dog care facility (i.e., your house/apartment) passes an on-site health inspection.