Section 59 of CGST Act - Self-Assessment under GST

Text of Section 59 - Self-assessment

In simple terms, the law does not ordinarily require a tax officer to calculate the registered person's GST before a return is filed. The registered person determines the tax liability in the first instance, reports the required particulars and discharges the liability through the applicable GST return and payment mechanism.

Meaning and scope of self-assessment under Section 59

"Self-assessment" means that a registered person is responsible for correctly determining the GST consequences of transactions on the basis of the CGST Act, the applicable State or Union Territory GST law, the IGST Act, the GST Rules, notifications and other binding provisions. This ordinarily requires correct identification of taxable supplies, value of supply, applicable rate, place and time of supply, reverse-charge liability where applicable, eligible input tax credit and the resulting net tax payable.

Section 59 should therefore be read together with the return provisions in Section 39 and the relevant provisions governing input tax credit, payment of tax, interest and assessment. Self-assessment does not prevent the tax administration from scrutinising returns or undertaking another assessment, audit or enforcement action where the statutory conditions are satisfied.

Practical compliance under Section 59

A registered person should, as applicable to the tax period:

• identify outward supplies and the correct GST treatment of each supply;
• determine output tax, including liability under reverse charge where applicable;
• verify the eligibility and amount of input tax credit before claiming it;
• reconcile books, outward-supply data and available input tax credit information;
• declare the applicable liability in the return and discharge tax in the manner prescribed; and
• retain supporting records and correct eligible omissions or errors within the time and manner permitted by law.

Section 59, Section 39 and Form GSTR-3B

Section 59 expressly connects self-assessment with the return required under Section 39. For normal taxpayers, Form GSTR-3B operates as the summary return through which GST liabilities for the tax period are declared and discharged. The GST portal also uses data from outward-supply statements and input tax credit statements to assist preparation of the return, subject to the taxpayer's verification and the statutory conditions for claiming credit.

Taxpayers under the Quarterly Return Monthly Payment (QRMP) framework may file the applicable return quarterly while making deposits for the first two months of the quarter in the prescribed manner. Under the self-assessment payment method, the taxpayer determines the current month's liability, net of eligible input tax credit, for the purpose of making the deposit.

Input tax credit and self-assessment

Form GSTR-2B is an auto-drafted input tax credit statement. Availability of an entry in an auto-drafted statement does not by itself override the conditions and restrictions imposed by the CGST Act and Rules. The registered person should self-assess the legal eligibility of input tax credit and make required reversals or other adjustments in the return.

Related assessment provisions

Section 59 is the starting point of Chapter XII of the CGST Act. Where the circumstances prescribed by law arise, other assessment mechanisms may apply. These include provisional assessment under Section 60, scrutiny of returns under Section 61, assessment of non-filers under Section 62, assessment of unregistered persons under Section 63 and summary assessment in specified special cases under Section 64.

Key takeaway

Section 59 makes self-assessment a statutory responsibility of every registered person. Accurate GST compliance therefore depends on correct classification and valuation, proper determination of liability, lawful input tax credit claims, reconciliation of return data and timely furnishing of the applicable return under Section 39.