: The primary source for the utility is Nithya's official website .
: While highly popular, the tool is intended for tax planning and estimation only . It is not a substitute for professional advice from a Chartered Accountant and should not be used to file actual returns to the Government. Nithya's Tax Calculator
: The file requires Microsoft Excel 2007 or later ; it may not function correctly in alternative applications like OpenOffice.
: Configure your personal details (Date of Birth is critical for senior citizen status) and city type (Metro vs. Non-metro) before entering income data.
: Features built-in logic for HRA exemptions , capital gains on equity or property, and professional tax.
: Automatically calculates exemptions and deductions under various sections like 80C (PF, LIC), 80D (Medical Insurance), 80E (Education Loan), and Section 24B (Housing Loan interest).