Bid Security Guide

Bid Security Guide (PCANA)

Bid security is one of the fastest ways bidders get disqualified, not because they lack capacity, but because they misunderstand the rules, use the wrong instrument, miss a form detail, or submit late.

This guide explains what bid security is, when it’s required, the common acceptable forms, and how to avoid preventable bid rejection.

What Is Bid Security?

Bid security is a financial assurance submitted with a bid to confirm the bidder is serious and capable of entering the contract if selected. If a bidder withdraws, refuses to sign, or fails to provide required post-award security (where applicable), bid security may be forfeited under the solicitation terms.

Why buyers require it:

Reduces frivolous bids
Protects the procurement process from costly delays
Filters vendors who are not financially or operationally prepared

When Is Bid Security Required?

Bid security is commonly required for:

Construction and civil works
High-value supply contracts (large volumes, tight timelines)
Multi-year or standing-offer arrangements
Projects with complex logistics or mobilization
Government-adjacent, defense, or high-compliance procurements

Important: Always follow the solicitation instructions. If bid security is required, it is usually a mandatory requirement.

Common Acceptable Forms of Bid Security

Acceptable forms vary by jurisdiction and solicitation, but typically include:

1) Bid Bond (Most Common)

A bid bond is issued by a surety and guarantees the buyer will be compensated (up to the bond amount) if the bidder defaults on the bid obligations.

Usually requires:

Surety relationship and underwriting
Correct bid bond form (buyer-provided template)
Proper signatures and seals (as required)

2) Irrevocable Letter of Credit (ILOC)

An irrevocable letter of credit is issued by a bank and payable on demand, subject to the terms in the solicitation.

Watch-outs:

Must match the buyer’s wording and format requirements
Must be from an acceptable financial institution
Must remain valid for the full bid validity period

3) Certified Cheque / Bank Draft

A direct financial instrument that guarantees funds are available.

Watch-outs:

Payable to the exact legal payee name specified
Must be delivered according to the submission instructions
Often used for smaller to mid bid security amounts

4) Electronic Funds Transfer (EFT)

Some solicitations allow EFT or other electronic payment methods.

Watch-outs:

Proof of payment must be included exactly as instructed
Timing matters: late payments can still be deemed non-compliant
Must be from an acceptable financial institution

Rule: Only submit forms listed as acceptable in the solicitation. If it is not listed, do not assume it’s allowed.

Typical Amounts and How They’re Calculated

Bid security may be stated as:

A fixed dollar amount (example: $10,000), or
A percentage of the bid price (commonly 5% to 10%)

If the bid has multiple pricing options (lots, alternates, extensions), the solicitation should specify the calculation basis. If unclear, assume the strictest interpretation and document your basis if permitted.

Validity Period: The Most Missed Detail

Bid security must often remain valid for:

The full bid validity period, plus
An additional buffer period if specified (common in construction)

If your bid security expires early, the buyer may deem the bid non-compliant or remove it from evaluation.

Submission Rules That Cause Automatic Rejection

These are the most common “no second chances” errors:

Submitting the wrong form (or using your own template)
Missing signatures, seals, witness requirements, or power-of-attorney attachments
Making the instrument payable to the wrong entity
Incorrect bid reference number or project title
Submitting bid security in a separate email or after the deadline
Forgetting to include the bid bond within the bid package upload
Submitting a scanned copy when originals are required (or vice versa)
Not acknowledging addenda that change security requirements

Best practice: Treat bid security as a compliance item, not a finance item. It must match the procurement instruction page exactly.

Bid Security vs Performance Security

These are not the same.

Bid Security: Submitted with the bid to keep bidders accountable during the solicitation phase.
Performance Security: Provided after award to guarantee contract performance (often a performance bond or letter of credit).
Labour & Material Payment Bond (construction): Protects subcontractors and suppliers (where required).

A common disqualification scenario: bidder submits bid security correctly but cannot provide post-award security within the required timeframe.

A Simple Bid Security Readiness Checklist

Before you submit, confirm:

☐ Bid security is required (yes/no) and amount is correct
☐ The form used is explicitly listed as acceptable
☐ Instrument name, payee, and wording match the solicitation
☐ The value meets or exceeds the required amount
☐ Validity period meets or exceeds the required timeframe
☐ All signatures, seals, and attachments are complete
☐ The security is included in the same submission method and by the same deadline
☐ Proof is clear and readable (scans are legible)

Practical Tips to Avoid Last-Minute Failure

Set up a surety/bank relationship early: underwriting takes time
Use a standard internal intake form for every bid (project name, owner, value, deadline, security type)
Pre-stage security templates (bid bond, ILOC wording, EFT instructions if permitted)
Build a compliance cross-check step 24 hours before submission
Never assume an exception will be granted for late or incorrect bid security

FAQ

Can I submit bid security after the deadline?

Almost always no. Bid security is typically treated as a mandatory submission component that must be received by the closing time.

What if my surety won’t issue the bond in time?

Do not guess. If alternatives are allowed (ILOC, certified funds), use them, but only if the solicitation permits.

Is bid security refundable?

Usually, yes, for compliant bidders who are not awarded. However, the return process and timing are controlled by the buyer’s rules.

Next Step

If you understand the bid security requirements and can consistently produce compliant instruments without delays, proceed to PCANA Vendor Registration so your profile can be assessed for opportunities that match your readiness level and security capacity.