Well, @OP, let's look at it in the scenario I am about to give.


You start a food business (like an eatry or restaurant), and perhaps, let's say, your cost for all the food items that were bought is about $5k. Let's say you started on the 1st of September 2023, and on the 30th day of that month, you have sold out of all the food items you bought ($5,000) in that month. After balancing your account for that month, you realize that your total capital has now reached $7,500, plus your profite. In that case, I can categorically say that I started earning profit from the first day I started the business, isn't it?


Ok, let's look at it another way. On the first day you started the business, you prepared a total food cost of $500, and after you closed the sales for that day, you realised a total amount of $650 plus your profit. That is to say, on the first day of sales, you have already started making profits.


So, yeah, there are businesses you can start today, and you instantly start to make profits as long as you are selling. Profit is generated from the sale of your products or items, and you as an entrepreneur will have to keep a sale day book to record your sales so you can give an account for the profit made that day or do it monthly.


As an entrepreneur, I know that the first day you launch your business, you might not really be making a lot of sales, probably because your business has not yet gained too much publicity. But as the days pass and you gain more customers, your profit will increase, depending on how swiftly you are making sales. Although there are still some businesses you can start that might not be making a profit in their early stages, if you have a better strategy, you will still make profit as people get to know you.