Using a bank guarantee to unlock money the client is holding

Updated 2026-09-24 · All guides

Most contractors think of a bank guarantee as something the client makes them give. It is also something you can use to get your own money back.

Every works contract holds money after you have finished. Five per cent is deducted from each running bill as retention or security deposit, and it is released only after the defect liability period — commonly a year from handover, sometimes longer. On a ₹50 lakh contract that is ₹2.5 lakh of your money sitting with the client, earning you nothing, for well over a year after your last labourer left site.

You can usually buy it back. Offer the client a bank guarantee for the same amount and ask for the cash. The security they hold is unchanged; what changes is who is holding it in the meantime.

This guide assumes you already know what performance security is and what it costs. If not, start with performance security and bank guarantees, which explains the obligation itself — retention, EMD and performance security are three different things and are regularly confused.

This is a right in central government works, not a favour

The Manual for Procurement of Works says it plainly: the contractor "may, at his option, replace the retention amount with an unconditional BG / Insurance Surety Bonds from a bank acceptable to the Procuring Entity" — at two stages, once the retention reaches half the limit, and again once it reaches the maximum limit (para 5.1.3).

Release then follows the retention it replaced: half on the taking-over certificate, and the rest sixty days after the defect liability period ends or after final payment, whichever comes first.

Two related provisions are worth knowing:

• GFR Rule 171 lists what performance security may be furnished as — an Insurance Surety Bond, a demand draft, a fixed deposit receipt, a bank guarantee including an e-Bank Guarantee, or online payment. The surety bond was added in February 2022 and the e-BG in April 2022.
• GFR Rule 227A goes further. Where a department has challenged an arbitral award and so not paid, 75% of the award must be paid to the contractor against a bank guarantee — and it adds that "retention money and other amounts withheld may also be released against BG."

Private clients are under no such obligation, but most large ones accept the swap as routine, because it costs them nothing: they still hold security, and it is now backed by a bank instead of by your invoice. If your contract is silent, ask. It is a reasonable request and refusing it is harder to justify than you might expect.

The three ways to arrange the guarantee — this is the part that matters

The swap is only worth doing if the guarantee costs you less than the money is worth. That depends entirely on how your bank backs it.

1. Full cash margin — you move the money, you do not free it

The default for a contractor with no facility. The bank issues the guarantee against a fixed deposit of the full amount, lien-marked in its favour.

Your ₹2.5 lakh comes back from the client and goes straight into an FD. Net cash: unchanged.

It is still worth doing, for one reason people miss: the FD is yours and it earns interest. Money sitting as retention with a client earns you nothing at all. Move it into your own fixed deposit and it earns the deposit rate for the whole period, against which you pay the guarantee commission. On a year-long guarantee the deposit interest commonly covers the commission and leaves something over — and the deposit is an asset on your balance sheet, which helps the next time you ask a bank for a limit.

Run your own numbers before assuming it nets positive. If your bank's commission is high and deposit rates are low, this route can cost more than it earns, and then it is only worth doing where you need the client relationship or the balance-sheet treatment.

2. A non-fund-based BG limit — this is the one that actually frees cash

Ask your bank to sanction a non-fund-based limit for guarantees. It is a sanctioned ceiling — say ₹50 lakh of guarantees outstanding at any time — against which the bank issues BGs as you need them. No money leaves your account when one is issued.

Against that limit the bank takes a partial cash margin, commonly in the region of ten per cent, rather than the full amount. On a ₹2.5 lakh guarantee you put up roughly ₹25,000 and the remaining ₹2.25 lakh of client money is genuinely free for running your next job. That is the whole difference between moving money and freeing it.

Two things the bank will want, and it is worth understanding why:

• An existing credit relationship — normally your cash credit or overdraft limit. This is not the branch being difficult. The RBI's Master Circular on Guarantees and Co-acceptances directs that "banks should refrain from issuing guarantees on behalf of customers who do not enjoy credit facilities with them" (para 2.2.3(iii)). A bank that has never lent to you is being told by its regulator not to guarantee you either. If you want BG limits, open the borrowing relationship first and build a record on it.
• Turnover, track record and financials. The limit is sized against your audited turnover, your order book and how you have run the account. For performance guarantees the same circular requires the bank to satisfy itself that you have "the necessary experience, capacity and means to perform the obligations under the contract" (para 2.2.3(ii)) — so the sanction is really an assessment of you as a contractor, not just of your balance sheet.

The margin is negotiable and it moves with your standing. A contractor two years into a clean account, with completion certificates behind them, is in a much stronger position to argue it down than one applying cold. Ask; the first offer is rarely the best one.

The circular also explains why the margin never goes to zero: "as a rule, banks should avoid giving unsecured guarantees in large amounts and for medium and long-term periods" (para 2.2.2(i)).

3. An insurance surety bond — no bank limit consumed at all

Since February 2022, GFR Rule 171 accepts an Insurance Surety Bond as performance security, and the Works Manual accepts one in place of retention. These are issued by IRDAI-regulated general insurers under the Surety Insurance Contracts Guidelines, which took effect on 1 April 2022.

The attraction is that a surety bond is underwritten by an insurer, so it does not eat into your banking limits at all — the BG limit you have stays free for the jobs that insist on a bank guarantee. The market is still young, not every insurer writes them, and pricing depends on your credit assessment, so treat it as worth a phone call rather than a certainty. For a contractor whose BG limit is fully drawn and who cannot get it raised, it is the route most worth investigating.

Side by side, on ₹2.5 lakh of retention:

Margins shown are indicative. Your bank's number is the one that counts.

The tender cost calculator will run these figures, including the margin and commission on each route.

Work out whether it pays

Take the amount blocked, and for the period it would be blocked, compare:

• what you earn or save by having the cash — deposit interest on the margin route, or interest saved on your overdraft, or the return from putting it into the next job; against
• what the guarantee costs — commission for the full validity, stamp duty, issuance and amendment charges, and the opportunity cost of the margin.

Two points that decide most of these sums. First, the period is longer than you think: validity runs to the end of the defect liability period plus the claim period, so a twelve-month DLP usually means a guarantee live for fourteen or fifteen months, and you pay commission for all of it. Second, if you are running an overdraft, cash released from retention reduces the balance you are paying interest on — that saving is often larger than any deposit rate, and it is the number to use.

If the amount is small and the period short, the swap may not be worth the paperwork. Below roughly a lakh, most contractors find the charges and the chasing are not repaid.

What to watch

• A bank guarantee is unconditional and payable on demand. The bank pays the client when asked and then recovers from you; it will not first ask whether the deduction was fair, and courts step in only in narrow cases such as established fraud. Swapping retention for a BG does not protect you from an unjustified claim. It changes who holds the cash in the meantime, and it forces the client to take a visible, deliberate step to take it — which is not nothing, but do not mistake it for protection. Protection comes from the records covered in getting paid as a subcontractor.
• Use the client's prescribed format. Departments verify guarantees against a set format and confirm issuance directly with the branch, by post or over SFMS, before accepting them (Works Manual para 5.1.4). A guarantee with altered wording gets sent back, and the verification itself takes days — start well before you need it.
• Diarise the expiry, and get the original back. Commission runs and your margin stays lien-marked until the guarantee is returned and cancelled. Unreturned expired guarantees are one of the commonest silent leaks in a contracting business. After the claim period ends, write to the bank asking for the limit and margin to be released, whether or not the client has sent the paper back.
• Expect pressure to extend. Clients routinely ask for an extension close to expiry, with invocation as the implied alternative. Budget for the possibility, and if you believe the underlying work is complete, say so in writing at the time rather than after.
• Ask for an e-BG. GFR Rule 171 accepts them, stamping and transmission are handled electronically, and they remove the courier delays and the lost-original problem that dog paper guarantees.
• No guarantee should normally run beyond ten years (RBI circular, para 2.1.3). If a client asks for open-ended validity, that is a term to push back on.

The short version

Money held as retention earns you nothing. A bank guarantee can buy it back, and in central government works that is your option to exercise, not a favour to request.

If the bank backs the guarantee with a full cash margin, you have moved the money into your own fixed deposit and picked up the interest. If you have a non-fund-based BG limit, you have actually freed about ninety per cent of it for working capital — which is why building the banking relationship that makes such a limit possible is worth more to a growing contractor than any single job.