TenderHub.lk
EN

Tender guides

Bid Security and Performance Bonds in Sri Lanka

Understand bid security Sri Lanka rules and performance bonds: what they are, who issues them, how much they cost, and how to avoid guarantee errors that sink bids.

TenderHub Editorial · · 9 min read

Bid Security and Performance Bonds in Sri Lanka

Many first-time bidders are surprised to learn that submitting a government tender often requires a bank guarantee before a single item is delivered. Bid security Sri Lanka procuring entities ask for, and the performance security that follows award, exist to protect the buyer from bidders who withdraw, refuse to sign or fail to perform. Getting these guarantees right is not a formality: an incorrectly worded, under-valued or expired bid security is one of the fastest ways to have an otherwise excellent bid rejected.

This guide explains what bid security and performance bonds are, how they differ, where to obtain them, what they cost you, and how to check them before submission. It also covers related instruments such as advance payment guarantees and retention.

Note: The amount, form, validity and acceptable issuers of every guarantee are set out in each tender's bidding documents. Requirements and practices change, so verify them in the documents and with the procuring entity.

What Is Bid Security?

Bid security (sometimes called a bid bond, tender bond or tender guarantee) is a financial assurance submitted with your bid. It promises the procuring entity that, during the bid validity period, you will not withdraw your bid, and that if you are selected you will sign the contract and furnish the performance security. If you break those promises, the buyer may call (encash) the security.

In public procurement in Sri Lanka, bid security requirements are set out in the Instructions to Bidders and the Bidding Data Sheet (BDS) of the standard bidding documents prepared under the procurement guidelines issued for government entities, including the National Procurement Commission's Procurement Guidelines for goods and works. The BDS tells you whether bid security is required for that tender, the amount, the acceptable form and the period of validity.

Bid-Securing Declaration as an alternative

For some procurements, the documents may ask for a Bid-Securing Declaration instead of a monetary guarantee. With a declaration, the bidder accepts that if it withdraws or refuses to sign, it may be suspended from bidding with that entity for a stated period. Whether a declaration is allowed depends entirely on the specific tender, so check the BDS.

What Is a Performance Bond (Performance Security)?

Once a contract is awarded, the successful bidder is usually required to furnish performance security within a stated number of days after the letter of acceptance. This guarantee protects the buyer if the contractor or supplier fails to perform its obligations. It typically remains valid until the end of the contract period, and for some contracts until completion of a defects liability or warranty period, as stated in the contract conditions.

Failure to provide performance security on time may lead to cancellation of the award and calling of the bid security, after which the buyer may move to the next ranked bidder.

Bid Security vs Performance Security at a Glance

| Feature | Bid security | Performance security | |---|---|---| | When submitted | With the bid, before the deadline | After award, within the period stated in the letter of acceptance or contract | | Purpose | Protects against withdrawal or refusal to sign | Protects against failure to perform the contract | | Amount | Stated in the BDS; often a fixed sum or a percentage of estimated value | Stated in contract conditions; usually a percentage of contract price | | Validity | Beyond bid validity by a period stated in the BDS | Through contract performance, sometimes through the defects or warranty period | | Returned | To unsuccessful bidders after award / signing; to winner after performance security is provided | After obligations are fulfilled, per contract terms |

Common Forms of Bid Security in Sri Lanka

Bidding documents specify which instruments are acceptable. Common ones include:

  • Bank guarantee from a licensed commercial bank operating in Sri Lanka, issued in the format given in the bidding documents. This is the most widely used form.
  • Guarantees from other approved institutions, where the documents permit them (for example, certain insurance companies or finance institutions). Do not assume these are acceptable unless the BDS says so.
  • Cash deposit or bank draft paid to the procuring entity, where allowed, usually with a receipt attached to the bid.
  • Bid-Securing Declaration, only where the documents request or allow it.

When the BDS says "unconditional" or "on demand", it means the bank must pay when the buyer makes a written demand, without requiring proof of loss. A guarantee with conditions not found in the prescribed format can be treated as non-compliant.

How Much Bid Security Is Required?

The amount is decided by the procuring entity and written in the BDS and tender notice. Procurement guidance typically asks entities to set bid security at a level that discourages irresponsible bidding without excluding genuine smaller bidders. In practice it is often expressed as a fixed rupee amount for each lot or package. Always use the exact figure required; a guarantee for even slightly less than the stated amount is a common reason for rejection.

Illustrative example (hypothetical)

Imagine a road maintenance tender where the notice states a bid security of Rs. 100,000 valid for 28 days beyond a bid validity period of 91 days. If bids close on 1 March, the bid validity runs to around the end of May and the bid security must remain valid into late June. A bidder who obtains a guarantee valid only until the end of May has not met the requirement. These numbers are for illustration only; your tender will state its own.

How to Obtain a Bank Guarantee

1.Read the BDS and the form. Note the amount, currency, beneficiary name, tender number, validity date and required format. 2.Approach your bank early. Banks usually need time for internal approval, especially for new customers. 3.Provide the documents the bank needs. This commonly includes a written request, a copy of the tender notice and the prescribed guarantee format, company registration documents and financial information. 4.Arrange security or limits. Banks may require cash margin, a fixed deposit, property or an existing credit facility. 5.Pay the bank's charges. Banks charge commissions and fees that vary by bank, amount, period and your relationship. Ask for a quote and include the cost in your pricing. 6.Check the draft before issue. Compare it word by word with the required format. 7.Collect the original and keep copies for your records.

Checklist: Verifying Your Bid Security Before Submission

  • Correct beneficiary name exactly as stated in the documents
  • Correct tender or contract number and description
  • Bidder's name identical to the bidding entity (joint venture guarantees must cover all partners if required)
  • Amount equal to or higher than required, in the correct currency
  • Validity date at least as long as the BDS demands
  • Issued in the prescribed format with no added conditions
  • Issued by an acceptable institution
  • Original document included (not only a photocopy), unless electronic submission rules say otherwise
  • Placed in the correct envelope or uploaded as the e-GP instructions require

Performance Security in Practice

After you receive the letter of acceptance, read it alongside the contract conditions. You will typically need to:

  • Submit performance security in the prescribed format within the stated number of days.
  • Sign the contract agreement.
  • Provide other documents such as insurance policies, programmes or advance payment guarantees where applicable.

Plan ahead: ask your bank early in the bidding process whether it can issue a performance guarantee for the expected contract value. Winning a tender and then failing to provide performance security can result in losing the contract and your bid security.

Related Guarantees and Deductions

Advance payment guarantee

If the contract allows an advance payment (common in works contracts), the buyer will generally require an advance payment guarantee for the same amount, reduced as the advance is recovered from progress payments.

Retention money

In many works contracts a percentage is retained from each interim payment and released after completion and the defects liability period. Some contracts allow retention to be replaced by a guarantee. Check the conditions of contract.

Warranty or maintenance security

Some goods and equipment contracts require security during the warranty period. Again, the documents decide.

When Can Bid Security Be Forfeited?

Under the standard approach, the buyer may call the bid security if the bidder:

  • Withdraws its bid during the bid validity period;
  • Refuses to accept a correction of arithmetic errors where the documents provide for this;
  • Fails to sign the contract after award; or
  • Fails to furnish the required performance security.

The exact grounds are stated in the ITB and BDS. Bid securities of unsuccessful bidders are normally returned after the contract is signed and performance security is provided by the winner, according to the timelines in the documents.

Managing Guarantee Costs as a Small Business

Guarantees tie up credit lines and cash margins. To manage them:

  • Bid selectively for contracts within your financial capacity.
  • Maintain a good relationship and credit facility with one bank.
  • Track expiry dates so you can request returns or cancellations promptly.
  • Ask whether a Bid-Securing Declaration is accepted for small-value tenders.
  • Build guarantee commissions into your overheads.

Tools like the bid bond calculator on TenderHub.lk can help with rough planning, but the binding figure is always the one in the bidding documents.

Frequently Asked Questions

Is bid security mandatory for every tender in Sri Lanka?

No. Whether it is required, and in what form, is decided for each procurement and stated in the bidding documents. Some tenders ask for a Bid-Securing Declaration or none at all.

Can I submit a photocopy of the bank guarantee?

Generally, the original is required for paper submissions. For electronic procurement, follow the e-GP instructions for that tender regarding uploads and originals.

What if my bid security validity is a few days short?

It may be treated as non-compliant, and the bid can be rejected. Always match or exceed the validity date demanded by the BDS.

Can the procuring entity ask me to extend bid security?

Yes. If evaluation takes longer, the buyer may request bidders to extend bid validity and bid security. You may usually refuse, but then your bid will not be considered further. The terms are in the ITB.

How much does a bank guarantee cost?

Charges differ between banks and depend on amount, duration and your credit standing. Ask your bank for current rates.

When will I get my bid security back?

Typically after the contract is signed and the winner submits performance security, within the period indicated in the bidding documents. Contact the procuring entity if it is delayed.

Key Takeaways

  • Bid security protects the buyer before award; performance security protects it after award.
  • The BDS and contract conditions decide amount, form, issuer and validity.
  • Use the exact format, beneficiary, amount and validity date.
  • Talk to your bank early and include guarantee costs in your price.
  • Keep a register of all guarantees and their expiry dates.

Conclusion

Guarantees can feel like a barrier, but once you understand them they become a routine part of your bid preparation. Read the data sheet, request the bank guarantee early, check every word, and plan for performance security before you win. Mastering bid security Sri Lanka requirements removes a major cause of rejection and builds trust with buyers. To find tenders early enough to arrange guarantees comfortably, follow the daily tender notices on TenderHub.lk.

Related guides

Browse live tenders in Sri Lanka, see what is closing this week and get daily tender alerts on TenderHub.lk.