When buying a house, especially a new one from a developer or a property paid for in installments, you will often sign a PPJB before eventually reaching an AJB. Many buyers assume the two are essentially the same, when in fact their legal weight and purpose are quite different. Understanding this distinction matters, so you know exactly what stage your purchase is at and what still needs to be settled.

What PPJB Is, and When It Is Used

PPJB, short for Perjanjian Pengikatan Jual Beli (Sale and Purchase Binding Agreement), is a preliminary agreement between seller and buyer, used when a transaction cannot yet move straight to the formal sale deed. There are several common reasons for using a PPJB: payment still being made in installments or under an inden arrangement, common when buying a home from a developer that has not yet finished construction, a master certificate that has not yet been subdivided into individual unit or plot certificates, or tax obligations that have not yet been fully settled.

Broadly speaking, there are two situations worth distinguishing: a PPJB signed once payment is already complete but the supporting documents for an AJB are not yet ready, and a PPJB signed while payment is still ongoing in stages, with full settlement to occur at a later date. Both are contractually binding between the parties, but neither transfers land rights yet.

As a simple illustration, imagine buying a home in a new housing complex in Banjarbaru that is still under construction. Because the unit is not finished and the developer has not yet issued individual plot certificates, you would first sign a PPJB to bind the deal while paying in installments, then sign the AJB later once the home is complete and every condition has been met.

What AJB Is, and Why It Is the Basis for Title Transfer

AJB, short for Akta Jual Beli (Sale and Purchase Deed), is the official document drawn up and signed before a PPAT (the licensed land deed official), proving that the transfer of rights over the land and building has legally taken place. Unlike a PPJB, which is a preliminary agreement, an AJB is the primary legal basis required to file a title transfer with the Land Office (BPN).

An AJB can only be signed once certain conditions are met, chief among them full payment and settlement of tax obligations by both parties, such as BPHTB owed by the buyer and PPh (income tax) owed by the seller. A PPAT will generally not sign an AJB until these conditions have been fulfilled.

The most fundamental difference between PPJB and AJB lies in their legal weight over the land itself. A PPJB, while contractually binding between seller and buyer, generally does not yet transfer ownership rights over the land. You have the right to hold the seller to their obligations under the agreement, but as long as the AJB has not been signed and the title has not been transferred, the name recorded at BPN under land law is still the seller’s.

An AJB, by contrast, is directly recognized as the basis for a transfer of rights under applicable land regulations, and is a mandatory requirement for a title transfer. Because of this, while you hold only a PPJB, there remains some risk, however small, that the seller could still transfer or pledge the same land to another party before the AJB is signed, particularly if the PPJB was never registered or was drawn up without a notary involved.

As another illustration, if a seller defaults after a PPJB has been signed, for instance by selling the same land to someone else, the first buyer generally has grounds to seek damages based on the agreement. But seeking damages is quite different from actually owning the land, and legal proceedings of this kind can take considerable time and money.

When Each Is Typically Used in Practice

In practice, the pattern of PPJB and AJB usage tends to look like this:

  • Buying a new home under an inden arrangement from a developer, where construction is not yet finished or individual certificates have not yet been issued: typically starts with a PPJB, followed by an AJB once construction is complete, payment is settled in full, and unit-level certificates are available
  • Buying a second-hand home in cash, paid in full, with all documents already complete: can generally go straight to an AJB without a PPJB
  • Buying property through an installment arrangement directly with an individual seller, outside of a bank mortgage, before full settlement: typically uses a PPJB until the full amount has been paid

This pattern can vary depending on what the two parties agree and the developer’s own policy, so it is always worth asking specifically what stage you are at before signing any document. The same pattern holds in Banjarmasin and Banjarbaru, where most new developer housing uses a PPJB in the early marketing stage, particularly for units sold before construction is finished.

The Risk of a Transaction That Stops at PPJB

Some buyers, particularly those purchasing from a developer, find their transaction stuck at the PPJB stage for a long time, even after payment is fully settled. This can happen because subdividing the master certificate drags on, the developer delays its administrative obligations, or the developer runs into financial or legal trouble.

As long as you only hold a PPJB, you are not yet recorded as the legal owner under land law, which means the property is harder to use as loan collateral, harder to resell cleanly, and carries risk if a dispute or change of ownership occurs on the developer’s or seller’s side. If you have been stuck at the PPJB stage for a long time despite having paid in full, it is reasonable to actively ask the developer or seller when the AJB will be processed, and if needed, consult an independent notary/PPAT about your options.

What to Check Before Signing a PPJB

Because a PPJB is a binding stage before the AJB, it is worth paying attention to a few things before you sign one:

  • Make sure the PPJB is in writing and, ideally, drawn up or at least reviewed by a notary, rather than a private agreement between individuals
  • Check the clause on the timeframe until the AJB will be signed, including what happens if the developer or seller is late in fulfilling its obligations
  • Understand the payment structure, including what happens if you want to cancel or if the seller defaults
  • Keep your payment receipts and a copy of the PPJB safe, since this document will remain an important reference until the AJB process is complete

It is also worth asking about the developer’s or seller’s track record, for instance past projects that were carried all the way through to AJB and title transfer. A developer with a clear track record is generally more reliable at meeting its promised timelines than one without a comparable history.

Taking the time to check these details upfront is far cheaper than dealing with a dispute later.

Final Thoughts

PPJB and AJB are both important, but they play different roles in the journey of a property transaction. A PPJB is the bridge that binds both parties while the conditions for an AJB are not yet met, while an AJB is the document that actually transfers rights and forms the basis for the title transfer. This article is general education; to make sure your legal position is secure in a specific transaction, it is best to involve a notary/PPAT from the moment a PPJB is first offered to you.

If you are in the middle of a property transaction in Banjarmasin or South Kalimantan and want to make sure every document stage is handled safely, the Vorneo Property team is happy to guide you on WhatsApp at no charge.