Bali Property Contracts and Indonesian Language Law: Dual-Language Pitfalls That Void Deals

Most foreign buyers in Bali read their lease or purchase agreement in English, sign it, and assume the English text is what protects them. Under Indonesian law, that assumption is wrong in an important way. The rules on Bali property contract language — anchored in Indonesia's national language law — mean that an agreement involving an Indonesian party must exist in Indonesian, that the two language versions can quietly diverge, and that in a dispute the Indonesian text and Indonesian legal concepts will usually do the deciding. This article explains what the language law actually requires in 2026, the real court history behind the "English-only contracts are void" warnings, and the dual-language pitfalls that cost buyers money.

What the Indonesian language law actually requires

The core rule comes from Law No. 24 of 2009 on the national flag, language, emblem and anthem. Article 31 requires that agreements involving Indonesian government institutions, Indonesian private entities or Indonesian citizens be made in the Indonesian language. When a foreign party is involved, the agreement may also be made in the foreign party's language or in English — as a companion version, not a replacement.

A 2019 implementing regulation (Presidential Regulation No. 63 of 2019) confirmed the practical framework: bilingual execution is the compliant approach for foreign-related agreements, and the parties may agree which language prevails if the versions ever conflict. Since virtually every Bali property transaction has an Indonesian party on the other side — a landowner, a developer, a notary executing the deed — the rule applies to essentially every lease, sale and purchase deed, and construction contract you will sign on the island.

Notarial deeds are their own category. Deeds executed before an Indonesian notary or land deed official (PPAT) — such as a sale and purchase deed (AJB) or a notarial lease deed — are made in Indonesian as a matter of course. What you sign at the notary's office is an Indonesian-language legal instrument; the English version you were emailed is, formally, a translation for your convenience.

Can an English-only contract really be voided?

This is the part with genuine court history, and it is worth getting right rather than repeating the scare version.

In 2013, an Indonesian district court voided a loan agreement between a foreign lender and an Indonesian company because it had been drafted only in English, holding that the absence of an Indonesian version violated Article 31 of the language law. The decision was upheld on appeal, up to the Supreme Court. For years afterwards, that line of cases made "no Indonesian version = void" a live risk for any foreign-related contract in Indonesia — and Indonesian counterparties occasionally used it opportunistically, signing an English-only deal and later asking a court to nullify it when the deal stopped suiting them.

The Supreme Court has since narrowed the doctrine. Guidance issued in its 2023 plenary circular states that an Indonesian party cannot cancel an agreement merely because it was made in a foreign language without an Indonesian version — unless it can be proven that the missing Indonesian version resulted from bad faith. That is a meaningful correction, but read it carefully: it is a defence against opportunistic nullification, not permission to skip the Indonesian text. Bad faith is argued case by case, court practice is not perfectly uniform, and you do not want your ownership structure to depend on winning that argument. The compliant, boring answer remains the right one: every material agreement should be executed bilingually, Indonesian plus English, at the same time.

The dual-language pitfalls that actually void or damage deals

In practice, the buyers who get hurt are rarely hurt by the void-for-language doctrine itself. They are hurt by the gap between two versions of the same contract. The recurring failure modes:

• Diverging versions. The English text promises an extension "at the same rate"; the Indonesian text says "at a price to be agreed". The English says the lease transfers freely; the Indonesian requires the owner's written consent. If you only read one version, you do not know which contract you signed.
• The prevailing-language clause working against you. Parties may designate a prevailing language, and foreign buyers often assume English prevails. Check the clause — in many templates circulating in Bali, Indonesian prevails, or the clause is absent entirely, leaving an Indonesian court to lean on the Indonesian text.
• Signing the notarial deed unread. The deed read out at the notary's office is in Indonesian. Buyers routinely sign after hearing a summary. If the deed differs from the negotiated English draft — a shorter term, a missing extension clause, a different land parcel number — the deed is what binds.
• Amateur translations. Machine-translated contracts produce legal nonsense in both directions. Indonesian legal terms (hak sewa, hak tanggungan, wanprestasi) carry specific meanings that a literal translation flattens.
• Side promises that never enter either version. Verbal assurances about extensions, access roads, or building rights that appear in neither language do not exist legally, in any language.

How the two versions should be executed

A clean bilingual execution looks like this, and a competent notary will insist on it:

1. One document, two columns (or two mirrored counterparts), Indonesian and English, negotiated and finalised together — not an English deal papered with an Indonesian version weeks later.
2. A translation prepared or checked by a sworn translator or a bilingual lawyer, so the legal terms actually correspond.
3. An explicit prevailing-language clause you have consciously agreed to, with the understanding that an Indonesian court will still read the Indonesian text closely whatever the clause says.
4. Both versions signed at the same time, every page initialled, annexes (site plans, specifications, payment schedules) attached to both.
5. For leases and purchases: execution before a notary/PPAT, with the underlying certificate verified first — language compliance means little if the counterparty cannot convey the right at all. Our guides on due diligence cover that half of the problem.

Contract language in construction agreements

The same logic applies to your build contract, and here the divergence risk is arguably higher because the document is longer and more technical. Scope of works, materials specifications, milestone definitions, penalty and defect-liability clauses all have to survive translation. A construction contract where the English annex lists imported fixtures and the Indonesian annex says "sesuai spesifikasi" (per specification) is a dispute waiting for a rainy season.

This is one of the quiet advantages of building with a contractor that works with foreign clients as its normal business rather than as an exception. Teville's client agreements are executed bilingually with consistent annexes, and the payment structure is milestone-based — a typical six-stage schedule where money follows verified progress — so the contract you can read matches the contract that binds, and both match what happens on site. You can see how staged budgets are structured with the villa cost calculator and browse completed concepts in our portfolio.

A pre-signing language checklist

Check	What you are confirming
Indonesian version exists	Every material agreement has an Indonesian text executed simultaneously with the English
Versions compared clause-by-clause	A bilingual lawyer (yours, not the seller's) has confirmed term, price, extension, transfer and termination clauses match
Prevailing-language clause	You know which text prevails and have priced that into your risk
Notarial deed reviewed before signing day	You received the draft Indonesian deed in advance and had it checked against the negotiated terms
All promises captured	Nothing you are relying on lives only in WhatsApp messages or conversation
Annexes attached to both versions	Site plan, certificate copy, payment schedule, specifications identical in both

None of this is expensive relative to the transaction. Independent bilingual review of a lease or construction contract costs a fraction of one month of your budget and removes the largest self-inflicted risk in the process.

How Teville fits in

Teville has built villas in Bali for foreign clients since 2018, and bilingual, notarised contracts with milestone-based payments are simply how we work — the legal and language mechanics in this guide are handled as part of the standard process, alongside land due diligence on every plot we offer. If you want a build where the paperwork is as solid as the structure, talk to us or read more about how we work on our about page.

FAQ: Bali property contract language

Is my English-only lease agreement in Bali valid?

It is risky. Indonesian law requires agreements involving Indonesian parties to be made in Indonesian, with a foreign-language version alongside. Current Supreme Court guidance says the missing Indonesian version alone should not void a contract absent bad faith, but court practice varies and you would be litigating in Indonesian anyway. Fix it: execute a proper bilingual version, checked by a bilingual lawyer.

Which language prevails if the versions conflict?

Whatever the contract says — the parties may agree a prevailing language under the 2019 implementing regulation. If the clause is missing, or the dispute lands before an Indonesian court, expect the Indonesian text to carry decisive weight in practice. Never sign a prevailing-language clause you have not read in both versions, and never assume English prevails by default.

Do I sign the notary deed in Indonesian even if I don't speak it?

Yes — notarial deeds are made in Indonesian, and the notary reads the deed aloud before signing. You are entitled to a translation and to an interpreter, and you should request the draft deed in advance so your own bilingual advisor can compare it against the negotiated terms. What binds you is the Indonesian deed, not the email chain that preceded it.

Does the language rule apply to construction contracts too?

Yes. A build contract with an Indonesian contractor is an agreement involving an Indonesian party, so the same bilingual requirement applies. Pay particular attention to the technical annexes — specifications, milestone definitions and penalty clauses are where translations quietly diverge, and they are exactly the clauses you will need if the build goes wrong.