How to use this calculator
- Enter the date of the original invoice and the date of the note.
- Choose the type of note to match your situation.
- Read the last date allowed and the treatment of input tax credit in the result.
The time limit depends on the financial year of supply; confirm it with the current provisions.
The result is an estimate for the figures you enter. It is not a filed return, a certificate or professional advice. Rates, thresholds and section numbers change with each Finance Act, and the Income-tax Act, 2025 applies from 1 April 2026 with new section and form numbers.
For the related work, see GST return filing.
Related calculators
- GST interest calculator, Section 50Calculate interest on late payment of GST and on excess input tax credit taken and used. Uses the figures you enter.
- QRMP scheme eligibility checkerCheck eligibility for quarterly returns with monthly payments, and the schedule of returns and payments. Uses the figures you enter.
- GST e-invoice applicability checkerCheck whether e-invoicing is mandatory for your business based on turnover and the type of invoice. Uses the figures you enter.
- GST on goods transport agency servicesCheck GST on goods transport agency services at the default rate and the reverse charge, based on the option chosen.
- GST on import of services calculatorCalculate the integrated GST payable by the recipient on services received from outside India and the credit. Uses the figures you enter.
- GST on real estate calculatorEstimate the GST rate on residential and commercial property sales and how input tax credit is treated. Uses the figures you enter.
- Customs duty calculatorCompute the customs duty on imported goods, including basic duty, social welfare surcharge and integrated tax.
- GST composition scheme eligibility checkerCheck eligibility for the GST composition scheme and estimate the tax at the flat rate for your type of business.