FORM NO. 3CA
The tax audit report needs to be prepared as per prescribed form 3CA in case the assessee is also required to get its books of accounts audited under any other law. For instance in cases of the company, every company is required to get the books audited under the companies act, 2013.
FORM NO. 3CB
In case the assessee /taxpayer is not required to get its books of account audited under any law then the tax audit report need to be prepared as per prescribed form 3CB. For instance, in case of a salaried individual or firms, if their income is more than Rs. 1 crore.
FORM NO. 3CD
Form 3CD is an annexure to form 3CA or 3CB as the case may be. The tax auditor is required to fill particulars of the taxpayer for which tax audit was conducted. The form 3CD is in the form of an information memorandum and forms part of the audit report u/s. 44AB.