Bank guarantees for MSMEs and contractors: types, real cost and how to reduce it

Almost every contract a contractor or MSME supplier signs asks for security: an earnest money deposit at the bid, a performance guarantee on award, a guarantee against the mobilisation advance. Most of it is given as a bank guarantee (BG). A BG does not take cash out of your account the way a loan does, so it is easy to underestimate. In practice it ties up your bank limits, a slice of your cash as margin, and a fee that runs for longer than the contract.

What a bank guarantee is

A bank guarantee is the bank's promise to pay the beneficiary (the project owner, buyer or authority) if you, the applicant, fail to meet an obligation. RBI's Non-Fund Based Credit Facilities Directions, 2025, which apply to guarantees issued or renewed from 1 April 2026, require guarantees to be irrevocable and unconditional and to be honoured when invoked, unless a court restrains the bank. Fees, claim period, tenor and security are left to each bank's board-approved policy.

Types of bank guarantee

Banks price financial guarantees higher than performance guarantees, because they are more likely to be invoked. SBI's schedule, for example, charges 1.60% to 2.20% a year on performance BGs and 1.90% to 2.30% on financial BGs depending on rating, and an advance payment guarantee at 20% above the financial guarantee rate.

BG limit vs fund-based limit

Your bank sanctions two kinds of limits:

• Fund-based (cash credit, overdraft, term loan): money is lent and you pay interest on what you use.
• Non-fund based (bank guarantees, letters of credit): no money moves unless the guarantee is invoked. Every BG you take uses up part of the sanctioned BG limit until it is returned or expires.

Under RBI's directions a bank generally issues guarantees only to customers who also have a fund-based facility with it, with exceptions such as a guarantee fully secured by eligible financial collateral (for example, a fixed deposit). So the BG limit is usually sanctioned together with your working capital limits and is sized on your order book and bidding pipeline. If a large guarantee is invoked, the bank pays and debits your account; that amount becomes a fund-based debt overnight.

What a bank guarantee really costs

1. Commission. A percentage a year on the BG amount, set by your rating and the type of BG. PNB charges 2.00% a year on performance BGs up to ₹1 crore; Indian Bank, SBI and others publish their own card rates. SBI quotes lower rates for priority-sector borrowers.
2. How long you are charged for. Many banks charge for the validity plus the claim period, and round up to whole months or quarters. SBI charges by the month, with broken days counted as a full month; PNB charges a minimum of one quarter.
3. GST on the commission and other charges. Bank schedules quote commission excluding GST.
4. Cash margin. Not an RBI rule, but most banks take one. Indian Bank's IB Contractors scheme, for example, takes a 10% margin on guarantees and LCs as an FD. The FD earns interest, so the cost is the gap between what that money costs you and the FD rate.
5. Stamp duty on the guarantee deed (see below), plus small charges for issue, amendment and e-BG messages.

Worked example

A contractor needs a ₹1 crore performance guarantee valid for 24 months, with a 12-month claim period. The bank charges 2.00% a year, by the quarter, including the claim period. It holds a 10% margin in an FD earning 6.25%, while the contractor's cash credit costs 10.5%. These are the default inputs in our bank guarantee cost calculator, which is illustrative only.

The same BG at a bank that does not charge for the claim period costs ₹6,00,680 before stamp duty, so it is worth asking how your bank charges.

Stamp duty on bank guarantees in Maharashtra

Until July 2026, Maharashtra charged bank guarantees under the security bond article (Article 54), and charged the same duty again on every renewal. The Maharashtra Stamp (Fourth Amendment) Act, 2026 inserts a separate Article 34A, in force from 22 July 2026 according to a Vinod Kothari Consultants note:

So a ₹10 lakh BG attracts ₹3,000, a ₹1 crore BG ₹30,000, and renewing that ₹1 crore BG without an increase ₹25,000. Commentators have pointed out that the Act does not define "bank guarantee" and that some cases, such as guarantees inside loan documents, may be argued under other articles. Ask your bank how it will stamp the deed before you price the bid.

Validity and claim period

The validity is the period the guarantee covers. The claim period is the extra time after expiry in which the beneficiary can still make a claim. Banks used to insist on at least one year, citing Exception 3 to section 28 of the Indian Contract Act. In 2021 the Delhi High Court held in Larsen & Toubro v. Punjab National Bank that this exception does not fix a minimum claim period, so the claim period is what the contract and the bank agree. A shorter claim period can cut the commission, but only if the tender allows it.

How to reduce the cost

• Improve your rating and negotiate. Card rates fall with better internal ratings, and large or well-rated borrowers often get customer-specific rates.
• Choose how the claim period is charged. Compare banks that charge for it with those that don't, and ask for the shortest claim period the contract permits.
• Return expired or released BGs quickly. Commission runs while the guarantee is outstanding in the bank's books. PNB refunds full unexpired quarters on cancellation, after recovering at least two quarters.
• Margin: more is not always cheaper. Banks cut commission when the BG is backed by deposits: SBI charges 50% of the rate at 50% cash margin and 25% at 100%; PNB 50% at 75% and 25% at 100%. In our example, a 100% margin cuts commission to ₹1,50,000 but the interest lost on ₹1 crore of locked cash is ₹12,75,000, so the total rises to ₹14,53,180. Full margin pays only if the cash would otherwise sit idle.
• Use CGTMSE for the limit, not the price. The CGTMSE scheme covers fund and non-fund based facilities, including bank guarantees, extended to micro and small enterprises without collateral. It lets the bank sanction a guarantee limit without property security, but adds an annual guarantee fee, so it lowers your collateral needs rather than your commission.
• Consider insurance surety bonds. IRDAI's 2022 guidelines let insurers issue bid, performance, advance payment and retention money bonds, but not financial guarantees. Since 2022 central government procurement accepts them as bid and performance security, where contracts typically ask for 5–10% of the contract value as performance security. A surety bond does not use your bank limits. Premiums are quoted case by case; our calculator compares one at the premium you enter.

Checklist before you bid

1. Read the tender's BG format, validity and claim period.
2. Check how much BG limit is free after counting every outstanding guarantee.
3. Price the BG: commission, GST, margin cost and stamp duty, for the full charged period.
4. Ask whether a surety bond is accepted.
5. Diary the expiry date and get the original back from the beneficiary on time.

For how guarantee limits fit with cash credit, bill discounting and equipment loans, see our guide to working capital for contractors. Our drawing power calculator shows how much of your cash credit you can actually draw.

How Biz Corp Solutions helps

We help contractors and MSMEs size guarantee limits around their bidding pipeline, combine them with cash credit and equipment finance, and approach banks, NBFCs and financial institutions with a complete file, including CGTMSE cover where it fits. See our working capital and construction finance services, or call us before your next large tender.

This article is based on RBI's directions, published bank schedules of charges, the Maharashtra Stamp (Fourth Amendment) Bill, 2026 and commentary up to 21 October 2026. Rates, margins and stamping practice vary by bank and change over time; your sanction letter and the bank's current schedule prevail.