n Taxes: For Small Businesses QuickStart Guide – Understanding Taxes For Your Sole Proprietorship, Startup, & LLC , you’ll dive into the world of taxes, and find out why it is so important to ensure that you file accurate tax returns. Taxes are one of those necessary evils that exist in the world. Our society would be very different without them, but none of us would really like to pay them. To add insult to injury, they are usually complicated to understand and take a long time to prepare and file. That is where this book comes in.