Continuous and Standing Offers in Contract Law

A retail chain that buys packaging material every month does not sign a fresh contract each time a truckload arrives. Instead, it usually locks in a supplier through a tender for the year, and every purchase order that follows becomes its own mini-contract. This everyday arrangement has a name in contract law: a standing offer. It looks simple on the surface, but it raises interesting questions about when a contract is actually formed, and when a party can walk away.

What is a standing offer? 🔗

A standing offer, also called an open or continuous offer, is an offer that stays open for acceptance over a period of time rather than being accepted or rejected in one shot. The most common example is a tender invited for the supply of goods or services, where a supplier quotes a price and agrees to deliver whatever quantity is ordered during the tender period.

The key point students often miss is that a standing offer is not itself a contract. It is only a proposal that can ripen into a contract each time the other party places an actual order. Until an order is placed, there is no obligation on either side, and the buyer is not bound to purchase anything at all. This is exactly how a household deals with a regular newspaper vendor: the vendor’s willingness to deliver daily is a standing offer that turns into a fresh, informal contract every single day the paper is delivered and accepted.

How tenders turn into standing offers 🔗

Tenders are the clearest real-world illustration of this concept. A company or government department that needs regular supplies, say office stationery, spare parts, or raw material, invites bids from vendors for a defined period, often a year. When a vendor’s bid is accepted, it does not create one giant contract covering the entire year’s requirement. It simply means the vendor’s price and terms are now on the table, ready to be triggered by individual purchase orders.

This is precisely how India’s own Government e-Marketplace (GeM) functions for public procurement. Departments empanel vendors at pre-discovered prices for a fixed period, and each purchase order placed against that empanelment creates a distinct, enforceable contract for that specific quantity. GeM has scaled rapidly on this model, and public procurement through the portal crossed ₹5 lakh crore in gross merchandise value during FY 2024-25, showing how central the standing-offer structure is to modern buying, whether for government departments or private retail chains sourcing from approved vendor panels.

Why buyers prefer this structure 🔗

Retailers and large buyers like this arrangement because it avoids the cost of negotiating a fresh contract for every single purchase. Prices, delivery timelines, and quality specifications are settled once, at the tender stage, and then simply invoked whenever stock is needed. A retail chain sourcing packaging material, uniforms, or store fixtures typically works this way with its approved vendors.

Case law that shaped the concept 🔗

Two cases are usually cited to explain how a standing offer actually behaves in practice.

Great Northern Railway Co v Witham (1873) 🔗

In this English case, a company invited tenders to supply various stores for twelve months. The supplier’s tender was accepted, but he later refused to fulfil a specific order. The court held that accepting the tender did not create one binding contract for the whole year. It only created a standing offer that turned into a separate, binding contract each time an order was actually placed. Because an order had already been placed in this instance, the supplier was bound to honour it, and his refusal amounted to a breach.

Union of India v Maddala Thathiah 🔗

Indian courts followed the same logic. In this Supreme Court case involving a running contract for the supply of groundnuts to the government, the arrangement was treated as a standing offer rather than a completed sale or agreement to sell. The buyer’s demand for goods within the contract period operated as the acceptance that created a binding obligation, not the original tender itself.

Both cases establish the same principle: acceptance of a tender is only step one. The actual contract is formed only when a specific order is placed and accepted.

Can a standing offer be revoked? 🔗

Yes, and this is what makes it different from a completed contract. Since a standing offer remains an offer in the eyes of the law, it can be withdrawn at any time before a particular order is placed, exactly as any ordinary offer can be revoked under Section 6 of the Indian Contract Act, 1872. The supplier only needs to communicate the withdrawal before the next order is accepted.

However, revocation cannot undo orders that have already been placed and accepted. If a buyer has already sent a purchase order under the standing offer, a binding contract exists for that specific order, and the supplier remains bound to fulfil it even after announcing that no further orders will be entertained. This mirrors the general rule under Section 5 of the Indian Contract Act, that a proposal may be revoked at any point before the communication of its acceptance is complete, but never after.

So if a stationery supplier who has a year-long standing offer with a retail chain decides midway that rising paper costs make the deal unviable, they can validly withdraw the offer for all future orders. But any order the retailer had already placed and had accepted before that withdrawal must still be delivered at the agreed price.

Standing offer versus an ordinary offer 🔗

Why this matters for business and retail management 🔗

For students heading into procurement, supply chain, or retail management roles, understanding standing offers is not just an academic exercise. Retail businesses constantly negotiate long-term vendor arrangements for inventory, packaging, and logistics, and these arrangements are almost always structured as standing offers rather than one large contract. Knowing this distinction matters for two practical reasons.

First, it clarifies risk. A retailer cannot force a supplier to honour future deliveries once the offer has been validly withdrawn, so businesses need contingency plans or multiple approved vendors rather than relying on a single standing arrangement. Second, it clarifies obligation. Once an order has actually been placed under the standing offer, both sides are bound for that transaction, regardless of what happens to the broader arrangement afterward. Drafting purchase orders carefully, and tracking exactly when an order is placed and acknowledged, becomes essential from a legal standpoint.

This is also why large-scale digital procurement systems like GeM formalise the process so tightly. By recording every purchase order electronically, they remove ambiguity about exactly when a binding contract comes into existence within a long-running standing offer.

What do you think? If you were running a retail chain’s procurement desk, would you rely on a single supplier’s standing offer for your entire year’s stock, or would you prefer to keep parallel standing offers with two or three vendors? And how would you word a purchase order to make sure there is no confusion about exactly when a contract has been formed?

References

1. https://blog.ipleaders.in/types-of-offer-in-indian-contract-act-1872/
2. https://www.legalserviceindia.com/legal/article-5446-offer-and-acceptance-in-law-of-contracts.html
3. https://gem.gov.in/
4. https://www.newsonair.gov.in/gem-surpasses-%E2%82%B95-lakh-crore-gmv-achieves-milestone-in-public-procurement/
5. https://www.lawcases.net/cases/great-northern-railway-co-v-witham-06-nov-1873-lr-9-cp-16-cp/
6. https://www.casemine.com/search/in/standing+offer
7. https://advocategandhi.com/section-6-revocation-how-made-complete-explanation-under-the-indian-contract-act-1872/
8. https://www.drishtijudiciary.com/ttp-indian-contract-act/revocation-of-offer-and-acceptance