Under Vietnamese law, a deposit (dat coc) secures the signing or performance of a contract: if the party who paid the deposit refuses to sign or perform, it loses the deposit; if the party who received it refuses, it must return the deposit plus an amount equal to it, unless the parties agreed otherwise. That double-refund rule surprises many foreigners and is the reason the word "deposit" deserves care in any Vietnamese contract.
This guide explains how deposits work, how they differ from advance payments and security deposits under a lease, the disputes that come up most often, and drafting choices that protect you whether you are paying or receiving the money.
What a deposit is under Vietnamese law
The Civil Code lists deposit as one of the measures to secure performance of obligations, alongside pledges, mortgages, guarantees and others. A deposit is the handing over of money, precious metals, gemstones or other valuables by one party to another for a period, to secure the conclusion or the performance of a contract. Two situations are covered: a deposit to make sure the parties will sign a main contract later, and a deposit to make sure a signed contract will be performed.
If the contract is signed or performed as planned, the deposit is returned to the payer or counted against the payment obligation. If the payer refuses to sign or perform, the deposit belongs to the receiver. If the receiver refuses, it must return the deposit and pay an amount equal to its value. The parties are free to agree a different arrangement, for example a fixed sum rather than double, and many careful contracts do exactly that.
Deposits are used far beyond real estate. Car purchases, event bookings, factory orders, franchise negotiations and share deals all see them, and the same rules apply across these settings unless a specific law provides otherwise.
The deposit rules are default rules triggered by the word. If a document calls money "tien dat coc", a court will start from these consequences unless the agreement says otherwise. That is why the label you choose, in both English and Vietnamese, matters as much as the amount.
Deposit, advance payment and lease security deposit compared
Foreigners often use "deposit" loosely for three different things. Vietnamese law treats them differently.
| Type of payment | Purpose | If the deal collapses |
|---|---|---|
| Deposit (dat coc) | Secures signing or performance of a contract | Payer who refuses loses it; receiver who refuses repays it plus an equal amount, unless agreed otherwise |
| Advance payment (tien tra truoc, tien ung truoc) | Part payment of the price before delivery | Generally returned or offset; damages depend on proof of loss and any penalty clause |
| Lease security deposit (ky cuoc in movable leases, or a deposit under a house lease) | Covers unpaid rent or damage during a lease | Returned at the end of the lease after deductions agreed in the lease |
| Escrow (ky quy) | Money held in a blocked account at a bank to secure performance | Bank pays the beneficiary according to the escrow terms |
If you want flexibility to walk away with only a refund at stake, call the money an advance payment and say expressly that it is not a deposit. If you want a strong commitment from the other side, a deposit with clear terms may serve you better.
Disputes that come up again and again
Who refused? Most deposit disputes are fights about which side caused the failure. A buyer says the seller raised the price; the seller says the buyer missed the deadline. Written records of deadlines, offers and replies decide these cases.
Conditions that were never met. If the main contract depended on something outside both parties' control, such as a bank loan approval or a permit, and the condition failed, a court may find neither party refused. A clear condition clause prevents this argument.
Deposit and penalty stacked together. Some contracts provide for both forfeiture of a deposit and a separate penalty for the same failure. Courts look at what the parties actually agreed and may not award both; draft clearly if you intend cumulative remedies.
Deposits on property not yet legally sellable. In real estate, deposits are sometimes taken for apartments or land plots that cannot yet be legally transferred. Such arrangements carry high risk, and the validity of the deposit agreement may be questioned. Foreigners face additional limits on owning property in Vietnam, so check eligibility first.
Deposit paid in cash with no receipt. Cash deposits with no signed receipt are extremely hard to prove. Pay by bank transfer where possible and keep the transfer record with a reference to the agreement.
Deposit in foreign currency. Vietnam restricts the use of foreign currency in transactions between residents. A deposit denominated in foreign currency between parties in Vietnam can raise legality issues; take advice before agreeing one.
How to draft a deposit clause that protects you
Whether you pay or receive, the following points turn the default rules into terms you control:
- Decide whether you really want a deposit, an advance payment or escrow, and use the correct term in both language versions.
- State what the deposit secures: signing a main contract by a specific date, or performance of a signed contract.
- List the conditions that must be met before the main contract is signed, and state that if a condition fails through no fault of either party, the deposit is simply returned.
- Specify what counts as refusal, such as failure to sign within a set number of days after written notice.
- Agree the consequence explicitly: forfeiture and double refund, a fixed amount, or refund plus documented damages.
- Say how and when the deposit is returned or offset if all goes well, including bank details and the currency.
- Address whether a separate penalty or damages can be claimed on top of the deposit consequences.
- Have the agreement signed by persons with authority, and attach proof of payment.
This list fits on one page. It removes most of the room for later argument, and courts tend to respect clear terms that both parties signed.
If you are the one receiving the deposit
Foreign companies are often on the receiving side: a distributor pays a deposit to secure exclusive supply, a customer pays a deposit to reserve production capacity, or a buyer pays a deposit to secure a share purchase. Receiving money feels safe, but the double-refund rule means a receiver who cannot or will not perform may owe twice the amount. If your ability to perform depends on a parent company's approval, an export licence, a supplier or a factory slot, say so in the agreement and make the deposit refundable without penalty if that condition fails.
Keep the deposit identifiable in your accounts until the deal completes or collapses. If the main contract is signed, record clearly whether the deposit becomes part of the price, stays as security until final delivery, or is returned. Unclear treatment at this stage causes disputes about whether the buyer paid in full.
If the payer starts to walk away, respond in writing. Remind them of the deadline and the consequences, invite them to sign or perform, and record their answer. A court deciding whether to let you keep the deposit will want to see that the payer, not you, refused. Silence and informal chats rarely give that picture.
Hypothetical example: a foreign furniture maker takes a deposit from a retailer in Can Tho to reserve a container of goods for a set month. A strike at the maker's factory delays production. If the agreement says that delays caused by events outside the maker's control lead only to a refund, the maker returns the deposit and the relationship survives. Without that clause, the retailer may claim double.
Deposits in property and lease deals
Expats meet deposits most often when renting an apartment or, for those eligible, buying one. In a residential lease, the landlord usually asks for one or more months of rent as a deposit. That money is closer to a security deposit for the lease than a deposit to secure signing, and the lease should say exactly what can be deducted at the end and how quickly the balance comes back. Take dated photos of the apartment at move-in and move-out, and keep receipts for any repairs you paid.
When a landlord takes money to hold a unit before the lease is signed, that arrangement is often a genuine deposit in the legal sense. If you back out, you may lose it; if the landlord rents to someone else, the double-refund rule may apply. Put the terms in writing, even in a short message both sides confirm.
For property purchases, deposits are routinely paid before the notarised sale contract. Foreigners are allowed to own housing in Vietnam only in limited cases and within limits set by law, and land itself is held through land use rights that foreign individuals generally cannot hold. Before paying a deposit on property, confirm that you are eligible to own that specific type of housing and that the property can legally be transferred. A deposit on something you cannot legally buy is a very expensive lesson.
When you need a Vietnamese lawyer
For a small rental deposit, a clear lease and good records are usually enough. Talk to a licensed Vietnamese lawyer before paying or accepting a deposit on property, on a business acquisition, on a large supply deal or on anything in foreign currency. Those are the situations where the legality of the arrangement itself, not just its wording, can be challenged.
If a dispute has already started, a lawyer can assess which side is likely to be treated as having refused, whether the conditions in your agreement were met, and whether a claim for double refund or forfeiture is realistic. They can also tell you whether to negotiate, mediate or file a claim, and help preserve evidence such as messages and transfer records. You can ask a lawyer on AI Co Van for a first reading of your agreement before you decide how hard to push.
Bring the deposit agreement, proof of payment, the main contract or draft, and every message about deadlines and conditions. A lawyer reading those documents together can usually tell within one meeting whether your position is strong, which matters because deposit disputes often settle once both sides see where a court is likely to land.
Deposit rules interact with property, foreign exchange and consumer protection rules, all of which change from time to time. Check the current rules with a licensed lawyer before relying on general guidance in a live dispute.
Frequently asked questions
Do I always get double my deposit back if the seller backs out?
Only if the money was a true deposit and the agreement did not provide otherwise. Many contracts change the default rule. If the seller failed because a condition outside its control was not met, a court may order a simple refund instead.
Is an advance payment the same as a deposit?
No. An advance payment is part of the price paid early. It does not automatically trigger forfeiture or double refund. If you want that flexibility, call the payment an advance and state that it is not a deposit in both languages.
How much deposit is normal in Vietnam?
There is no single legal percentage for commercial deals; the amount is negotiated. For residential leases, one to three months of rent is common in practice. For larger transactions, keep the deposit proportionate to the risk you are willing to lose.
Can a deposit be paid in US dollars?
Vietnam restricts the use of foreign currency in transactions between residents, so a foreign-currency deposit between parties in Vietnam may be problematic. Deposits in cross-border deals are a different case. Ask a licensed lawyer before agreeing to a foreign-currency deposit.
What if my landlord refuses to return my rental deposit?
Check the lease for deduction rules, gather move-in and move-out photos and receipts, and send a written request. Many such disputes settle through negotiation or local mediation. If not, the amount can be claimed through the competent court.
Can I claim both the deposit and damages?
It depends on what the agreement says. Without a clear clause, courts may limit you to the deposit consequences. If you want the right to claim further damages or a penalty, write it into the contract expressly.