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BID SECURITY · Published 2026-05-01 · 10 min read

Bid security koto taka — calculator + examples.

Bid security percentage rule under PPR 2008, calculation method, BG vs cash deposit, refund timeline. ৳50L / ৳5Cr / ৳50Cr tender-er worked examples.

PPR 2008 Rule 232% defaultBG / Pay Order / e-GP
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1

Bid security ki?

What is bid security

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Bid security = ekti refundable deposit ja apni bid-er sathe submit koren. Eta procuring entity-r guarantee — apni bid withdraw na korben, contract sign na korle forfeit hobe.

Bid security (bid bond-eo bola hoy) hocche bidder-er commitment-er financial proof. Bid submission-er sathe lage. Procuring entity bid validity period jure hold kore. Apni bid withdraw na korle bid security ferot — typically 28 din-er madhye contract sign hole.

Bid security not optional. Without it bid examination-e disqualify hobe. Tobe Goods/Services-er low-value RFQ-te kichu tender-e bid security exempt thake — ITB-te dekhe nin. Public Procurement Rules 2008 Rule 23

2

Koto percent? — calculation rule

Percentage rule

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Default 2% of estimated cost। ITB-te procuring entity exact amount specify kore। Apnar bid price-er upor calculate korle WRONG — procuring entity-r estimate-er upor calculate hote hobe।

PPR 2008 Rule 23 onuyaee, default bid security 2% of the estimated cost. Procuring entity ICB-te exact figure dey — sometimes flat amount (e.g. BDT 50,000), sometimes percentage (2% calculated)。

Common mistake: bidder apnar bid price-er upor 2% calculate kore, not the procuring entity-r estimate. Dewar hisheb fault — bid disqualified.

Maximum cap: BDT 5 crore-er beshi bid security khub rare. Mostly ITB-te a max amount specify hoy (e.g. “2% of estimated cost or BDT 25 lakh, whichever is lower”).

Minimum floor: chhoto tender-eo (estimated cost < BDT 5 lakh) typical bid security 2-5%, kintu procuring entity discretion-e set kore.

3

Worked examples — 3 tender sizes

৩টি example

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৩ size-er tender-e calculation: BDT 50 lakh (small works), BDT 5 crore (mid-size), BDT 50 crore (mega project)। Pratiti-r jonno bid security = 2%।

Example 1: BDT 50 lakh tender (LGED upazila road repair)

  • Estimated cost: BDT 50,00,000
  • Bid security at 2%: BDT 1,00,000
  • BG fee at typical 0.5%: BDT 500 to issue the BG
  • Total cash flow impact: BDT 1,00,500

Example 2: BDT 5 crore tender (RHD bridge construction)

  • Estimated cost: BDT 5,00,00,000
  • Bid security at 2%: BDT 10,00,000
  • BG fee at typical 0.5%: BDT 5,000
  • Total cash flow impact: BDT 10,05,000

Example 3: BDT 50 crore tender (mega infrastructure)

  • Estimated cost: BDT 50,00,00,000
  • Bid security capped: BDT 50,00,000 (typical max)
  • BG fee at typical 0.5%: BDT 25,000
  • Total cash flow impact: BDT 50,25,000
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Forms of bid security

Format options

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৩টি form: (১) Bank Guarantee (BG) — most common, irrevocable, scheduled bank-e issue, (২) Pay Order / Demand Draft — bank-issued, scheduled bank, (৩) e-GP equivalent — online payment via portal।

Bank Guarantee (BG): most common form. Scheduled bank-e issue. Validity = bid validity + 28 days minimum. Encashable on demand if bidder defaults. Cost: 0.3% to 1% of BG amount per quarter (varies by bank, commercial relationship).

Pay Order / Demand Draft: bank-issued instrument. Cash-equivalent — bank already debited bidder-er account. Procuring entity-r favour-e drawn. Cost: transaction-based, typically BDT 50-200.

e-GP equivalent: portal-e online payment mechanism (mobile banking, internet banking). Smaller tender-e popular, but BG-r same legal weight bohon kore.

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Bid security kobe ferot pabo?

Refund timeline

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৩টি scenario: (১) Tender award hole winning bidder-er performance security replace kore, others ferot, (২) Tender cancel hole sob bidder ferot pay, (৩) Bidder L1-e award-er offer tickoy contract sign na korle forfeit।

Scenario 1 — You won: 28 din-er madhye contract sign-er sathe sathe performance security (separate, larger amount) submit korbe. Bid security ferot pabe.

Scenario 2 — You didn’t win: Award decision-er publication-er pore (typically 1-2 weeks), procuring entity sob unsuccessful bidder-r BG release kore. Bank-e formally cancel hote 1-2 din lage.

Scenario 3 — You won but withdrew: Bid security forfeit hobe. Tomar firm 1-3 years debarment-eo face korte pare. Public Procurement Rules 2008 Rule 127

PRO-USER CLAUSE
BG release delay hole: typically 28 din-er madhye release dorkar. 30+ din-eo hocche na hole formal complaint korun procuring entity-r ka। Rule 60-er under complaint mechanism use korte paren।
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TenderPulse calculator

TenderPulse-e auto-calculate

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TenderPulse upload-er saath sathe ITB-er Schedule of Submission theke estimated cost extract kore, bid security amount auto- calculate kore, BG fee estimate dey — apnaer bank-er sathe negotiate korar age।

TenderPulse-er BOQ extraction engine apnaer tender ZIP-er ITB-er Schedule of Submission analyze kore — estimated cost, bid security percentage, validity requirement, accepted BG forms — sob auto-extract.

7-din-er free trial-e 2-ti tender free analyze korte paren — bid security calculator-e include. Card details lage na. shuru korun →

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