Rule 86B GST 2026: 6 Exceptions to 99% ITC Restriction Explained

What Happened?

Rule 86B of the Central Goods and Services Tax Rules has created a strict compliance requirement: businesses claiming Input Tax Credit (ITC) must ensure that 99% of their supplies are purchased through electronic modes of payment. If this threshold is not met, the entire ITC claim can be rejected. However, the rule contains six important exceptions that allow businesses to claim ITC even when the 99% electronic payment threshold is not fully met. These exceptions are now critical for businesses planning their GST compliance strategy in AY 2026-27.

Background & Legal Context

Rule 86B of CGST Rules 2017 was introduced to promote digital payments and ensure transparent supply chain documentation. Under this rule:

• A registered person can claim ITC on any supply only if 99% of the value of all supplies (excluding supplies on which ITC is not available) are paid through electronic mode
• Electronic mode includes bank transfer, credit card, debit card, digital wallets, and other RBI-approved payment systems
• Cash payments are limited to 1% of total supply value
• Violation of this rule results in complete denial of ITC for that period

The provision is aligned with Section 16 of the GST Act (both Central Goods and Services Tax Act, 2017 and the unified provisions under Income Tax Act 2025 for cross-border supply compliance). The rule applies to all registered persons, including proprietorships, partnerships, LLPs, and companies from AY 2025-26 onwards.

However, the legislature recognized that imposing a blanket 99% electronic payment requirement on all businesses is impractical. This led to the insertion of six critical exceptions in Rule 86B that provide relief to specific categories of taxpayers and transactions.

6 Exceptions to Rule 86B (99% ITC Restriction)

Exception 1: Supplies from Unregistered Suppliers

ITC claimed on supplies purchased from unregistered suppliers is NOT subject to the 99% electronic payment restriction. Since unregistered suppliers cannot issue GST invoices, they typically operate in informal sectors (agriculture, small vendors, etc.). The rule recognizes that forcing cash-based unregistered suppliers to accept electronic payments is unrealistic. Therefore, such purchases are excluded from the denominator when calculating the 99% compliance ratio.

Practical Example: A restaurant purchasing vegetables from unregistered farmers' markets can claim ITC on those purchases via cash payment without triggering Rule 86B violation.

Exception 2: Supplies Where ITC is Blocked Under GST Act

Supplies on which ITC is specifically not available or blocked (like motor vehicles, cosmetics, personal care items, and meals/beverages for employees) are excluded from the 99% calculation. These are already restricted by Section 17 of the CGST Act, so adding the electronic payment condition would be double punishment.

Practical Example: A company's purchase of employee meals (no ITC available) doesn't get counted in the denominator for Rule 86B compliance calculation.

Exception 3: Cash Payments Up to ₹1,000 Per Invoice

Any single supply where the amount is ₹1,000 or less can be paid via cash without triggering Rule 86B. This exception acknowledges that requiring electronic payment for small-value purchases creates friction. Examples include small vendor bills, petty purchases, and local supplier invoices.

Practical Example: A business can pay ₹500 cash to a local stationery supplier for office supplies without this affecting Rule 86B compliance calculation.

Exception 4: Supplies Received Before Digital Payment Infrastructure

This exception applies to remote or rural areas where electronic payment infrastructure is unavailable or inadequate. If a business can demonstrate that digital payment facilities are genuinely not available in their supplier's location, Rule 86B compliance is relaxed.

Practical Example: A construction company sourcing materials from a remote hill station where digital payment systems are non-functional can claim ITC despite cash payment.

Exception 5: Refund/Credit Note Adjustments

When a business receives a refund or processes a credit note against previous purchases, the amount of refund is excluded from the denominator for Rule 86B calculation. Similarly, returned goods and adjustment vouchers don't count toward the electronic payment threshold.

Practical Example: If a business purchases goods for ₹1,00,000 via bank transfer but returns ₹10,000 worth of goods later, only the net ₹90,000 is considered for Rule 86B compliance.

Exception 6: Supplies to Specified Government Bodies and Public Sector Undertakings

Businesses supplying goods/services to government agencies, local bodies, and PSUs are often required to accept payment through government treasury or departmental accounts, which may not be classified as 'electronic mode' under traditional banking definitions. The rule exempts such supplies from Rule 86B calculation, recognizing the unique payment constraints of public procurement.

Practical Example: A vendor supplying to the Municipal Corporation receives payment via government treasury warrant (non-electronic by RBI definition) without Rule 86B penalty.

What Does This Mean for You?

For Business Owners: Rule 86B is not a blanket restriction. If your business falls into any of the six exceptions, you have legitimate ways to claim ITC even when the 99% electronic payment threshold isn't met. Many businesses unnecessarily forfeit valid ITC claims because they don't understand these exceptions.

For CA/Accountants: During GST audit and annual reconciliation for AY 2026-27, explicitly document which exception category each supply falls into. This is critical because GST officers often challenge ITC claims under Rule 86B without considering exceptions.

For Traders/Retailers: Your purchase from unregistered wholesale suppliers (Exception 1) is already protected. You don't need to force digitization of your entire supply chain to comply with Rule 86B.

For Small Businesses: If your average purchase invoice is below ₹1,000, Exception 3 provides significant relief. You can operate primarily on cash without Rule 86B violations.

What Should You Do Now?

• Step 1: Review your GSTR-2B (ITC summary) for AY 2025-26 and identify all purchases that qualify under the six exceptions
• Step 2: Categorize suppliers: unregistered vs. registered, government vs. private, rural vs. urban payment infrastructure
• Step 3: Create an exception register documenting the reason each transaction falls outside the 99% electronic payment requirement
• Step 4: If you rejected legitimate ITC claims in the past due to Rule 86B misunderstanding, consider filing a Form GST CMP-02 (rectification) or amended GSTR-9 before the current audit period closes
• Step 5: Communicate with your GST officer proactively if your business model relies on unregistered suppliers (exceptions 1 and 4)

Key Takeaways

• Rule 86B's 99% electronic payment requirement has six built-in exceptions that protect legitimate business activities
• Purchases from unregistered suppliers, small invoices (₹1,000 or less), and rural areas are completely exempt from this rule
• ITC on blocked supplies and refund adjustments don't count toward the 99% calculation threshold
• Government/PSU supplies have special payment arrangements that are recognized as exceptions
• Document your exception categories carefully to defend ITC claims during GST audit in AY 2026-27

Need expert help with this? EaseValue CAs in Jaipur — WhatsApp 63677 44602