ITC Reversal on Retention Money Under GST: A Detailed Practical Guide
1. Background: Why Retention Money Creates ITC Challenges
In construction and infrastructure contracts, it is standard business practice for the contractee to hold back a portion of the contract value as retention money. This retention generally extends well beyond 180 days from the date of invoice and is released only after successful completion of the work and/or expiry of the defect liability period.
These contracts often involve:
- Continuous supply of services
- Milestone-based billing
- Long execution cycles where final quality can be assessed only after substantial completion
Given this framework, retention money is an integral feature of the commercial arrangement.
However, the GST law links eligibility and continuity of Input Tax Credit (ITC) with payment of consideration within 180 days from the date of invoice. This link gives rise to a concern:
Whether the assessee must reverse ITC corresponding to the retention amount, since that part of the consideration is not actually paid within 180 days from the invoice date?
The debate essentially revolves around the interpretation and application of Section 16(2) of the CGST Act, 2017 read with Rule 37 of the CGST Rules, 2017 to retention money scenarios.
2. What is Retention Money and Why is it Used?
In construction and real estate projects, retention money is a contractually agreed portion of the contract price that is deducted from running bills and retained by the contractee (or developer, or buyer) to secure performance.
Typically, an assessee in the role of contractee or principal will withhold, say, 5%–10% of each bill. This amount is released only after:
- Successful completion of the project or specified milestones, and/or
- Expiry of the defect liability period, subject to no pending rectifications
2.1 Key Commercial Objectives of Retention Money
Retention money is not an arbitrary deduction; it serves multiple commercial purposes:
Quality Assurance
- Ensures that the contractor/vendor maintains agreed construction quality.
- Acts as a performance-linked holdback that incentivises compliant execution.
Protection Against Defects
- Provides financial security to the contractee if post-completion defects emerge.
- Retention serves as a ready pool to set off the cost of rectification if the contractor fails to perform.
Completion of Balance or Defective Work
- If the contractor leaves certain items incomplete or performs them inadequately, the retained amount can be used to complete or correct such work.
Safeguard Against Contract Breach
- Retention reduces the contractee’s risk where the contractor defaults, abandons the project, or fails to observe contractual covenants.
Defect Liability Coverage
- Often tied directly to the defect liability period, ensuring the contractor remains responsive to complaints or faults detected during that time.
Thus, retention money is fundamentally a security mechanism, not an indication that the contractee is failing to pay the supplier.
3. Statutory Framework: ITC Reversal for Non-Payment in 180 Days
3.1 Relevant Provision in Section 16(2) of CGST Act, 2017
The issue arises from the second and third provisos to Section 16(2) of the CGST Act, 2017. The second proviso states in essence that where the recipient fails to pay to the supplier, within 180 days from the date of invoice, the value of supply along with tax, the ITC availed must be added to output tax liability along with interest.
The third proviso to Section 16(2) of the CGST Act, 2017 clarifies that once payment is subsequently made to the supplier (value plus tax), the recipient can re-avail the ITC.
3.2 Text of Rule 37 of CGST Rules, 2017
Rule 37 of the CGST Rules, 2017 operationalises this requirement. It mandates that:
- If a registered person has availed ITC on an inward supply (other than reverse charge supplies) and
- Fails to pay to the supplier, wholly or partly, the value of such supply along with tax within 180 days from the invoice date,
then the assessee must: