This is how I started a fashion brand with only $500. More specifically, How I started a swimwear brand with only $500. Yes, you can start an online fashion boutique, or and online fashion business with limited resources. I applied all of my research and how to start a clothing business online and made it work for myself and my budget. I'm truly building a swimwear line from the ground up. I kept it simple and I only purchased what I needed to get my online fashion brand started online. Once i set my budget to $500, I had $14 left over.