Percentage Rate Contract

A Percentage Rate Contract is a government works procurement structure where bidders do not quote unit rates for individual items; instead they quote a single percentage (above or below) the agency's published Schedule of Rates (SoR), and all work is paid at SoR rates adjusted by that percentage.

What is a Percentage Rate Contract?

In a Percentage Rate Contract, the procuring agency publishes a tender with a BOQ and an estimated cost derived entirely from its own Schedule of Rates (CPWD DSR, state PWD SoR, MoRTH SoR). Bidders study the BOQ and site conditions and quote a single percentage, for example, "3.5% above SoR" or "1.2% below SoR", rather than individual unit rates for each BOQ item. L1 is the bidder with the lowest percentage (either the lowest above, or the highest below, SoR).

Payment during execution follows the same logic: actual quantities are measured and paid at the SoR rate, then adjusted by the contracted percentage. If SoR rates are Rs 3,500 per cubic metre for RCC and the contractor quoted 2% above SoR, they are paid Rs 3,570 per cubic metre for all measured RCC quantities.

Percentage rate contracting is widely used by CPWD and state PWDs for maintenance, repair, renovation, and small-to-medium construction works where the SoR adequately captures prevailing rates. It simplifies the bidding process, contractors assess the premium or discount they need to make the project profitable rather than pricing every single BOQ item. The system also reduces the risk of severely unbalanced bids since no individual item rate can be manipulated.

Why Percentage Rate Contract matters for Indian government suppliers

Contractors bidding PR contracts must assess whether the prevailing SoR rates are above or below actual market rates for the region and project type. If market rates have risen above SoR since the last SoR revision, bidding above SoR (even at a premium) may still yield profitable rates. Contractors bidding significantly below SoR risk unprofitable execution if material costs are close to SoR levels. Awareness of SoR update cycles is critical pricing intelligence.

Example

CPWD issues a NIT for repair and renovation of a government building valued at Rs 45 lakh, based on CPWD Delhi Schedule of Rates. Five contractors bid. Contractor A quotes 4.5% above DSR; Contractor B quotes 6% above; Contractor C quotes 1.5% above; Contractor D quotes 0.5% below DSR; Contractor E quotes 3% above. Contractor D is L1 at 0.5% below DSR with an evaluated cost of Rs 44.78 lakh. During execution, RCC quantities are measured. The SoR rate for RCC is Rs 4,200 per cubic metre; Contractor D is paid Rs 4,179 per cubic metre (Rs 4,200 minus 0.5%).

Frequently Asked Questions

What is the advantage of percentage rate over item rate contracts?

Percentage rate contracts are administratively simpler for both the government and contractors. The government does not need BOQ pricing from each bidder; contractors quote only one number. The SoR provides a common pricing framework that reduces scope for manipulation. They are ideal for maintenance and repair works where scope is well-covered by SoR items.

Are percentage rate contracts used for large infrastructure projects?

Rarely. For large highway, airport, or dam projects with complex scope and extensive contractor-designed elements, item rate or EPC contracts are preferred. Percentage rate contracts are most common for building maintenance, road patching, civil works within established SoR coverage, and routine utility works.

What happens when a work item is not covered in the SoR?

If a required work item is not in the SoR, it is handled as a "non-SoR item" or "extra item." The rate for such items is negotiated separately between the contractor and the client, typically based on analysis of rates (AoR), a bottom-up cost buildup. The percentage quoted applies only to SoR items.

How does an SoR update affect an ongoing percentage rate contract?

Mid-contract SoR revisions do not normally change the contracted payment rates. The percentage agreement is tied to the SoR version in effect at the time of tender. Price adjustments for cost escalation (materials, labour) are handled through the contract's escalation clause, not through SoR revision.