About
Who runs it
Trade Business Guide is written and maintained by Muhammet Çay, who founded it in 2026 and edits every page. No trade association, licensing school, insurer, software vendor or advertiser stands behind it, and none of them pays for placement.
The site does not give legal, tax, insurance or licensing advice, and its pages are not reviewed by a licensed contractor, accountant or attorney. What it offers is the record behind each figure: the government or market source, the date it was checked, and calculators whose arithmetic you can see and change.
The four questions
We organize the site around four practical questions: What does it cost to start? What does it cost to operate? What should a business charge? How much work is needed to become profitable? The calculators make assumptions visible, while the datasets show the records behind source-backed figures.
How to use the site
Start with a trade and state, inspect the source and verification date on a fee, then replace planning assumptions with your own quotes and records. Licensing can be local even when there is no statewide license. A calculator result is arithmetic on inputs, not a promise that the business will earn that amount.
Our methodology explains the research classes and checks. The source policy explains which sources we prefer. The corrections page explains how to flag a problem. We do not publish testimonials or claim credentials we do not hold.
Last updated: October 2, 2026