There are various templates that you can find using a Google search. However, it is sometimes difficult for a founder with limited experience writing business plans to write a plan that is clear to outsiders - the founder is often too deep in the weeds.

The first thing you need to do is be clear on why you need a business plan. Is it for fundraising? Is it to decide what your company is all about? Is there some other reason?

I've written lots of business plans for my own startups and startups I've consulted with. Sometimes the right answer is that you don't need to write a business plan at all, but you just need some of the elements of the business plan, such as a revenue model or marketing strategy.

I've got a few business plan templates and would be happy to discuss them. It all starts with your current situation and your needs though.