Refinancing a mortgage sounds simple: move to a bank with a lower rate, the instalment drops, done. In practice, switching banks comes with real upfront costs. A refinance only pays off if what you save on instalments over the remaining term is bigger than those costs. This article is about making that call with numbers rather than gut feel.

For the basics of the transfer process and paperwork, see our guide to taking over a KPR to another bank. Here we focus on the maths and the order of steps.

Signs a Refinance Is Worth Looking At

Not every borrower needs to think about refinancing. These conditions usually make it worth running the numbers:

  • Your fixed-rate period has ended. Once the fixed period is over, a conventional Indonesian mortgage generally moves to a floating rate. If the jump hurts, it is time to compare. The difference is covered in our article on fixed and floating rates.
  • Plenty of tenor remains. The longer the remaining term, the more room there is to save on interest.
  • Your payment record is clean. The new bank will look at your repayment history. Borrowers who always paid on time negotiate from a stronger position.
  • The property has held its value. The new bank will revalue your home. If the valuation comes in low, the approved amount may not be enough to clear the old loan.

The Costs to Add Up

This is the part that decides it. Ask for every figure in writing, not just verbally.

Early repayment penalty at the old bank. Usually a percentage of the outstanding principal. It differs between banks and often depends on whether you are still inside the fixed-rate period. Check your loan agreement, then confirm with the bank.

Provision and admin fees at the new bank. Similar to when you first took out the mortgage. The details are in our article on mortgage provision and admin fees.

Appraisal fee. The new bank revalues your home. Sometimes a bank waives this as a promotion, sometimes not.

Notary or land deed official (Pejabat Pembuat Akta Tanah, PPAT) fees. These cover the roya, which releases the old bank’s mortgage lien (hak tanggungan), and registering a new lien for the new bank.

New insurance. Life and fire policies are usually tied to the old bank. The new bank will want new ones.

Add it all up. That total is what your instalment savings need to “pay back”.

Working Out the Break-Even Point

The formula is simple:

Break-even (months) = total refinancing cost / monthly instalment saving

An illustration with round numbers, not any bank’s actual offer: total refinancing cost Rp12 million, old instalment Rp4 million a month, new instalment Rp3.6 million a month. The saving is Rp400,000. Break-even is 12 million divided by 400,000, which is 30 months.

So you only start genuinely saving after two and a half years. With 12 years left on the loan, that makes sense. With three years left, there is almost no point.

Two things people often miss:

  1. Promo rates are temporary. New banks often offer a low fixed rate for a few years before going floating. Ask what their floating rate is based on, and run the numbers for after the promo ends.
  2. The tenor can change too. If the new bank stretches the term, the instalment drops but total interest may rise. Compare using the same remaining term to keep it fair.

Refinancing Step by Step

  1. Request an outstanding balance letter from your current bank, and ask about the penalty and payoff procedure at the same time.
  2. Collect offers from two or three banks. Ask for a written simulation showing the rate, fixed period, floating benchmark, tenor and all fees.
  3. Calculate break-even for each offer using the formula above.
  4. Apply to your chosen bank. Documents are similar to a normal mortgage: ID, proof of income, bank statements, a copy of the certificate and the outstanding balance letter.
  5. Appraisal and approval. The bank values the home and checks your credit history.
  6. Signing and payoff. The new bank pays off the remaining balance at the old bank.
  7. Lien release and new lien. The old bank hands over the certificate, its lien is removed, and the new bank’s lien is registered through a notary or PPAT.

While this is in progress, keep paying the old bank until the payoff is confirmed. A missed month during the transition can still end up on your credit record.

Cheaper Alternatives to Switching

Before moving, try two cheaper routes:

  • Renegotiate with your current bank. Bring a written offer from another bank. Sometimes the current bank will adjust the rate without you paying switching costs.
  • Partial prepayment. If you have spare funds, reducing the principal can lower the instalment or shorten the term. See paying off a mortgage early.

If the real issue is not the rate but an instalment that is simply too heavy for your income, refinancing may not be the answer. Talk to the bank about restructuring before any arrears build up.

Common Mistakes

  • Comparing only the promo rate. A low rate for the first two or three years is not cheap if the floating rate afterwards is high.
  • Forgetting the penalty. The old bank’s penalty is often the biggest single cost, especially if you are still in the fixed period.
  • Borrowing more without a plan. New banks sometimes offer a top up. That extra money is still debt with interest, and it can wipe out everything you save by switching.
  • Switching too often. Every move means paying the upfront costs again. Two refinances in a short time rarely pay off.

A Note for Homes in South Kalimantan

In Banjarmasin and the surrounding area, many homes sit on swamp land or filled ground. During a revaluation, the condition of the building counts. Cracked walls or a sinking floor can pull the value down. If your home has issues like that, fix them first or be ready to explain them, so the valuation does not catch you off guard.

Wrapping Up

A refinance pays off when the rate gap is real, the remaining term is long, and break-even comes well before the loan ends. Get every cost in writing, run the simple formula above, and try negotiating with your current bank before you move.

If you are thinking about switching banks or want a sense of what your home is worth in the South Kalimantan market, the Vorneo Property team can help.