The best part about starting an Ecommerce business is that it’s not capital intensive. For a small business, you need to spend anywhere between £1200-£5000 to start. The more capital you have, the more you can spend on inventory. Sales depend on your ability to get your products in front of your customers, so your budget needs to cover advertising, promotion, and marketing costs. If you do not have the cash to spend upfront, you can go for a merchant account and get a line of credit.