This is the official website of the Commercial Taxes Department of the Government of Bihar, India. The website is designed to provide citizens with information and services related to commercial taxes in Bihar.

Here are some of the features and resources available on the website:

1. Taxpayer Services: The website allows taxpayers to register, file returns, and pay taxes online. It also provides information on tax rates, exemptions, and deductions.
2. Acts and Rules: The website provides access to relevant acts and rules governing commercial taxes in Bihar, such as the Bihar Value Added Tax Act, 2005, and the Bihar Goods and Services Tax Act, 2017.
3. Circulars and Notifications: The website publishes circulars and notifications issued by the Commercial Taxes Department, which provide updates on tax policies, procedures, and compliance requirements.
4. Forms and Returns: The website provides downloadable forms and returns for various tax-related purposes, such as registration, return filing, and tax payment.
5. Dealer Search: The website allows users to search for registered dealers in Bihar, which can be useful for verifying the authenticity of a dealer or checking their tax compliance status.
6. Tax Calculator: The website provides a tax calculator tool that helps taxpayers estimate their tax liability based on their turnover, tax rate, and other factors.
7. FAQs and Help: The website has a section dedicated to frequently asked questions (FAQs) and help resources, which provide answers to common queries and guidance on using the website.