Picture two friends since high school, call them Andi and Rian. Each one's salary is a bit tight for a KPR on their own, but combined, the installment on an Emerald 70 house in North Bekasi starts to feel doable. The idea is simple: buy together, one lives there first, the other joins later or they rent it out. That's usually the point where people forget one thing — a house isn't just about who pays the installment, but whose name sits on the certificate and what happens the day one of them changes their mind.
Co-buying a house between friends or siblings (not a married couple) is legal and common. What gets complicated isn't the purchase, it's what comes after. So let's break it down slowly: how to structure ownership, how a bank treats a joint KPR, and the part most people skip — the exit door for when the arrangement ends.
One Certificate, Two Names: Possible, If Structured
The good news is that a Freehold Title (SHM) can indeed list more than one name. This is called joint ownership, or co-ownership. The legal basis sits in Article 31 of Government Regulation No. 24 of 1997 on Land Registration: a jointly-owned land right is issued in one certificate, and if the parties want, separate certificates can also be issued equal to the number of rights holders, each stating the size of the ownership share.
That's exactly where the key decision lives: what's each person's share? Andi 60 percent, Rian 40 percent? Or an even 50:50? If this share isn't written explicitly, the National Land Agency by default treats ownership as split evenly among all the names listed. For anyone whose capital contribution differs — say one pays a bigger down payment — that even-split assumption can become a time bomb if it isn't put down on paper from the start.
The Co-Ownership Agreement Before a Notary
This is where the notary comes in. Ownership shares, who pays what, who gets to live there, who handles taxes and maintenance — all of it is best set out in a co-ownership agreement drawn up before a notary. Think of it as the "house rules" that bind you if a disagreement ever comes up. Without this document, you're just holding a certificate with two names and a verbal promise — and a verbal promise is hard to prove in front of a judge.
At a minimum, this agreement ideally covers: each person's share (in percent or rupiah), how installments and recurring costs are split, who has the right to occupy, the rule if one wants to sell their share (right of first refusal for the other party), and a mechanism for disputes. The more detailed it is, the less room there is for misunderstanding down the line.
Joint KPR Between Non-Spouses: Possible, But Banks Are Picky
If your capital isn't full and you need a KPR, there's the joint income scheme — two people's incomes combined in one application so the installment ratio looks healthier to the bank. This scheme is most commonly used by married couples. But some banks also allow it within the immediate family: parent and child, or biological siblings.
Here's the part worth underlining. For friends (not family), many banks are stricter or even decline, since a non-family relationship is seen as riskier on their end. The rules differ from bank to bank, so don't assume — ask the bank you're targeting directly before you go far. For siblings, the odds are much better.
What you have to understand: in a joint KPR, everyone recorded as a debtor carries the debt jointly and severally (tanggung renteng). Meaning, if Rian suddenly can't pay, Andi is still obliged to make sure the whole installment is settled — not just his own share. The bank can collect from whoever's name is on the contract. This matters, because plenty of people assume "I only cover half." In the bank's eyes, the two of you cover all of it, together.
The BI-Rate benchmark as of July 2026 sits at 5.75 percent, and that's one of the starting points a bank uses to set its KPR rate before its own margin. Combining incomes can raise the approved ceiling, but remember, a bigger ceiling also means a bigger joint-and-several liability.
Note: this piece is analytical and educational, not legal advice or banking advice. The rules on joint ownership, the contents of a notarial agreement, and joint-KPR policy can differ depending on the case, the bank, and the prevailing legal interpretation. Every example here is an illustration to explain the mechanism. Before signing anything, consult a notary/PPAT and the relevant bank to make sure the structure is the safest one for your situation.
The Hardest Part: Exit Scenarios
As long as everything runs smoothly and both parties stay financially healthy, co-buying is pleasant. The trouble is, life is rarely that straight. The three scenarios below are the ones that most often turn joint ownership messy — and ironically, they're the least considered upfront. Yet when they're arranged at the outset, the mitigation is far cheaper than cleaning up afterward.
| Scenario | Consequence if not arranged | Mitigation (ideally in the initial agreement) |
|---|---|---|
| One wants out / to sell their share | A share can be sold to an outside party, but selling the object itself needs the other holder's consent. Deadlock if you can't agree. | A right-of-first-refusal clause (the other party may buy the share first at a fair/appraised price), plus a valuation mechanism. |
| One defaults on the installment | Because of joint-and-several liability, the other must cover the whole installment; if it stays in arrears, the bank can auction the house even though one of you paid on time. | A shared reserve fund, a rule on who covers first plus a right of reimbursement, and a buyout option if the default drags on. |
| One passes away | The deceased's share enters the estate (boedel waris); their heirs automatically become co-owners in the deceased's place. You might suddenly "share a house" with heirs you've never met. | Agree a heir-buyout option in the contract, check the KPR life insurance (credit often requires it), and understand each party's inheritance rights. |
The death scenario often catches people off guard. When one co-owner passes away, their share doesn't automatically pass to the surviving owner — it enters the estate (boedel waris) and falls to their heirs. To separate that share into an individual right (so the surviving party can buy it, for instance), you need an agreement recorded in a PPAT deed as the basis for registration with the Land Agency. That's why many KPR loans require life insurance: if a debtor dies, the insurer covers the remaining debt so the burden doesn't land raw on the family or the co-buyer.
How to Protect Yourself Before Signing
The point isn't to make you paranoid, it's to make you prepared. A few reasonable steps before the deed:
- Write the shares explicitly — don't rely on the even 50:50 assumption if your capital contributions are actually different.
- Make a co-ownership agreement at a notary, not just a verbal promise or a WhatsApp chat. A formal document is far stronger in a dispute.
- Agree the exit doors upfront — right of first refusal, how to value a share, and what happens if one party defaults or dies.
- Make sure KPR life insurance is active for all debtors, so a death doesn't drag the other party into a pit of debt.
- Keep proof of payment — down payment, installments, notary fees, taxes. If you ever have to prove your share, your transfer records are your best friend.
Before you get to the certificate, it's worth understanding the foundation too. First get clear on the different title types in our guide to SHM vs HGB for a house, since this ownership status decides what you can and can't do together. Then, before signing the KPR, study the clauses that protect a buyer in our guide to important PPJB clauses — especially with two buyers' names, every clause becomes more crucial. And if you're weighing the type of financing, compare first in KPR sharia vs conventional 2026 so the joint-liability scheme fits the deal between you.
Linking to the Target: Emerald 70 as a Co-Bought House
Back to Andi and Rian. If their target is the Emerald 70 House at Kingspoint Residence — a two-storey home in the Rp 700 million range including VAT, land area 47.25 m² and building area 70 m², bored-pile foundation, with an installment simulation starting around Rp 5 million a month — buying it together can make that figure feel lighter on each pocket. It sits on Jl. Raya Perjuangan, North Bekasi (a flood-free area), 5 minutes to Bekasi Station and Summarecon Mall Bekasi, 10 minutes to the West Bekasi toll gate. Developed by Mandiri Development.
A house bought together isn't only about sharing the installment, it's sharing responsibility and risk for years ahead. Set the shares clearly, lock the exit doors at the notary, keep the insurance active — then enjoy the house without the worry. A good friendship or family bond actually lasts longer when the money side is tidy from the start.
Want to ask about joint KPR & co-ownership for Emerald 70?
The Kingspoint team can help explain the installment simulation for the Emerald 70 unit in North Bekasi and the options for structuring a two-person purchase (not a married couple), over WhatsApp — so you enter the process with a clear picture of shares, KPR, and the notary steps.
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