onGST Calculator

GST ITC Calculator India

Estimate eligible Input Tax Credit (ITC) based on entered purchase GST and selected Section 17(5) blocked credit exclusions, and compute net GST payable or excess credit carry-forward in Indian Rupees (₹).

Inward Supplies / GSTR-2B
₹
Presets:

Sum of CGST + SGST + IGST paid on business purchase bills and vendor invoices.

Output Tax Liability
₹
Presets:

Total outward tax collected on sales invoices (GSTR-1/GSTR-3B Table 3.1).

Select applicable Section 17(5) blocked-credit categories. This calculator estimates ITC after these selected exclusions; actual ITC eligibility also depends on other statutory conditions, documentation, business use, reconciliation requirements and applicable reversal rules.

Note: This checklist excludes selected Section 17(5) blocked credits. Complete ITC eligibility under GST law also requires fulfilling Section 16 conditions (valid tax invoice, actual receipt of goods/services, supplier payment of tax, and GSTR-2B reflection), business-use apportionment under Section 17(1)/(2), and payment to the supplier within 180 days.

ITC & Settlement Breakdown

Estimated Net Tax PayableCash Payment Due

Estimated Net GST Payable (Cash Ledger)

₹50,000.00
Output Tax (₹1,50,000.00) − Estimated Eligible ITC (₹1,00,000.00)
StatusPayment Required
Estimated Eligible ITC
₹1,00,000.00
Purchases less blocked credit
Blocked Credit
₹0.00
No blocked credit selected
GST on Purchases
₹1,00,000.00
Gross inward supply tax
GST on Sales
₹1,50,000.00
Gross outward tax liability

Settlement Calculation Flow

Total GST Paid on Purchases:₹1,00,000.00
Less: Blocked Credits [Sec 17(5)]:− ₹0.00
Estimated Eligible ITC (Available for Set-off):= ₹1,00,000.00
GST Collected on Sales (Output Tax):₹1,50,000.00
Less: Estimated Eligible ITC Set-off:− ₹1,00,000.00
Estimated Net Cash Payable:₹50,000.00

Eligibility & Reporting Note: This estimate reflects entered purchase GST minus selected Section 17(5) blocked credits. Actual statutory eligibility also requires fulfilling Section 16 conditions (valid invoice, actual receipt of supply, tax paid to government, and reflection in GSTR-2B), business-use apportionment under Section 17(1)/(2), and supplier payment within 180 days. Report eligible credit under Table 4(A) and blocked credits under Table 4(B)(1) of GSTR-3B.

4 Mandatory Conditions to Claim Valid ITC (Section 16)

Cumulative Checklist

A taxpayer must satisfy all four cumulative legal criteria in sequence before claiming credit on any invoice.

1
Prerequisite 01

Tax Invoice in Hand

Possession of a valid tax invoice, debit note, or bill of entry containing mandatory GST particulars under Rule 46.

2
Prerequisite 02

Actual Receipt

Physical receipt of the underlying goods or completion of the contracted services (or constructive delivery via bill-to-ship-to).

3
Prerequisite 03

GSTR-2B Verification

The invoice must be uploaded by the vendor in GSTR-1 and communicated to you in auto-generated static Form GSTR-2B.

4
Prerequisite 04

180-Day Payment

Discharging vendor payment (invoice value + tax) within 180 days of invoice date to avoid statutory credit reversal.

Statutory Rule: All 4 criteria are strictly cumulative under Section 16(2). If any condition fails, credit cannot be availed in GSTR-3B.Section 16(2) CGST

Section 17(5) Ineligible & Blocked Credit Reference Guide

Under Section 17(5) of the CGST Act, certain business expenses are legally barred from Input Tax Credit claims unless specific statutory exceptions apply:

Expense CategoryStatutory RulePermitted Legal Exceptions
Motor Vehicles (≤ 13 Seating)Blocked for passenger transportEligible if used for transportation of goods, driving schools, or commercial passenger transport (taxi/fleet)
Food, Beverages & Outdoor CateringBlocked for office & corporate eventsEligible if making taxable outward supply of catering/food or if obligatory for employer under law (e.g. Factories Act)
Club & Health Center MembershipsBlocked across all corporate entitiesNo general commercial exception (ineligible even if provided to executives as perks)
Works Contract for Immovable PropertyBlocked when capitalized to building costEligible if used for plant & machinery construction, or by a sub-contractor for further works contract supply
Personal Consumption & Stolen GoodsBlocked under Section 17(5)(g)/(h)Zero exceptions — goods lost, written off, gifted, or consumed personally cannot carry input credit

Worked ITC Settlement Scenarios

Step-by-step Input Tax Credit reconciliations for common trading and wholesale scenarios.

Scenario 1Net Cash Payable

Trading Enterprise – Net GST Payable

A wholesale trader incurs ₹80,000 GST on inventory and operational purchases. However, ₹15,000 is blocked credit (₹10,000 car servicing + ₹5,000 corporate catering). Outward sales tax collected is ₹1,20,000.

Total GST on Purchases:₹80,000
Less Blocked Credit [Sec 17(5)]:− ₹15,000
Estimated Eligible ITC:₹65,000
GST Collected on Sales:₹1,20,000
Estimated Net GST Payable in Cash:₹55,000
Scenario 2Excess ITC Surplus

Seasonal Restocking – Excess Eligible ITC

A retail store restocks festive inventory, paying ₹1,50,000 in purchase GST. Blocked credit is ₹10,000 (₹6,000 gym club perks + ₹4,000 personal gift hampers). Monthly sales tax is ₹90,000.

Total GST on Purchases:₹1,50,000
Less Blocked Credit [Sec 17(5)]:− ₹10,000
Estimated Eligible ITC:₹1,40,000
GST Collected on Sales:₹90,000
Excess Eligible ITC Carry-Forward:₹50,000

Input Tax Credit & Reconciliation FAQs

Practical answers to GSTR-2B mismatches, blocked credit exceptions, and time limits.

No. Under Section 16(2)(aa) of the CGST Act and Rule 36(4), ITC can strictly be claimed only when the invoice details appear in your auto-drafted Form GSTR-2B for that tax period. If a supplier files their GSTR-1 after the monthly cut-off (e.g. 11th of the subsequent month), the invoice will not populate in your current GSTR-2B and must be claimed in the following month once reflected.