The cost to start a Texas LLC yourself is $300 ($308.10 if you pay with a credit card). This amount equals the filing fee charged by the Texas Secretary of State to file the Certificate of Formation. This amount does not include service fees, internal LLC paperwork, registered agent services, EIN, etc.
The cost to have a lawyer form an LLC for you will be a little extra depending on the level of services you desire. We currently offer four Texas LLC formation packages/price points ranging from $250 to $1,000 (+ the state filing fee mentioned above).