Net vs Gross Income: Which Number Banks Use to Set Your KPR Limit

On 18 June 2026, Bank Indonesia raised the BI-Rate to 5.75%. For home buyers, this benchmark-rate move shifts the installment math — the floating KPR rate after the fixed period becomes something to factor in from the start. But before you even get to interest, there's a more basic mix-up that sinks more applications: confusing gross pay with net pay.

It usually goes like this. Someone sees Rp 12 million on their payslip, then uses that number to guess what they can repay. Going by the one-third rule, they feel comfortable carrying Rp 4 million a month. The file goes to the bank, and the approved limit comes back lower than hoped. The bank never looked at that Rp 12 million — what it used was the money that actually lands in the account.

Why Banks Use Net Income, Not Gross

Gross income is your total pay before deductions — base salary plus allowances, before anything is taken out. Net income, or take-home pay, is what's actually left after PPh 21 income tax, BPJS Kesehatan and BPJS Ketenagakerjaan contributions, and other routine deductions such as a workplace cooperative.

The bank's logic is simple. Money deducted upfront never reaches your hands, so it can't service a loan. The only figure relevant to assessing repayment capacity is the cash that genuinely flows into your account each month. That's why a credit analyst works the installment ratio off net income, not the big number at the top of the slip.

The One-Third Rule: Maximum Installment From Income

The benchmark nearly every bank uses: total installments — including other debts such as a car loan, an unsecured loan, or paylater — should stay under about 30-35% of your net monthly income. The technical term is Debt Service Ratio (DSR), or the ratio of installments to income. The exact figure varies by bank, but the one-third limit is a safe anchor that rarely misleads.

So if your net income is Rp 9 million, the comfortable installment room sits somewhere between Rp 2.7 million and Rp 3.15 million. If you still carry a Rp 1 million motorbike installment, the room left for a KPR drops to roughly Rp 1.7 million to Rp 2.15 million. Other debts eat into the allowance straight away, and that's the part people often forget when doing the math at home.

What Happens to THR, Bonuses, and Overtime

Now, this is the part that breaks the most hearts. Your income might feel large because of THR, an annual bonus, overtime, or commission. But in the bank's eyes those fall under variable income — and they're treated very differently from base salary.

To sort it out, the bank splits your earnings into two kinds:

• Fixed income — base salary and fixed allowances that come in at the same value every month. This counts in full toward your limit.
• Variable income — THR, bonuses, overtime, commission, sales incentives. These rise and fall, so the bank handles them cautiously.

How variable income is treated depends on each bank's policy, but the pattern is usually this: it gets discounted (a haircut on the percentage), averaged across the last several months or the past year, or left out entirely. Sales commission of Rp 5 million this month and zero the next clearly can't be treated like fixed pay. So don't be surprised if your "on paper" income of Rp 15 million ends up counted as only around Rp 8-9 million.

And What About the Self-Employed?

For entrepreneurs, freelancers, or business owners, the basis isn't a payslip but net business profit. Banks usually ask for recent bank statements, financial reports, and sometimes transaction records, then work out an average net income. A big turnover is no guarantee — what gets assessed is what's left after operating costs, exactly like the net-income concept for employees.

Gross vs Net: How the Basis Differs

Aspect	Gross basis (your own estimate)	Net basis (the bank's method)
Number used	Total on the slip, before deductions	Take-home pay after tax & BPJS
THR & bonus	Often assumed to be included	Discounted, averaged, or excluded
Other debts (car loan, paylater)	Frequently forgotten	Subtracted from installment room first
Resulting estimate	Looks large, feels affordable	Smaller, matched to real capacity

Worth keeping straight — the gap between these columns isn't the bank being stingy. The net-income method actually protects you from taking on an installment you can't really carry. Better to know a realistic limit now than to get stuck with a defaulting loan later.

A Worked Example for a Rp 700 Million Home

To make it concrete, take a young family eyeing Rumah Emerald 70 at Kingspoint Residence — a two-storey house priced in the Rp 700 million range with PPN included, 70 m² of building on a 47.25 m² plot, with installments starting from Rp 5 million a month.

Say this couple's combined gross income is Rp 18 million. After tax, BPJS, and office deductions, their net income comes to around Rp 14.5 million. Using a 35% ceiling, their safe installment room sits around the Rp 5 million mark — right on the starting point for Rumah Emerald 70. But if one of them still carries a Rp 2 million vehicle installment, that room shrinks, and the realistic limit drops with it. (These figures are illustrative; the actual outcome depends on interest, tenor, and the partner bank's policy.)

For a fuller picture of how DSR and the installment ratio work — including the often-invisible effect of paylater — start with our breakdown of the maximum installment ratio & paylater effect.

The Location That Makes the Math Reasonable

An installment figure only feels fair when it's matched against the location. Rumah Emerald 70 sits on Jl. Raya Perjuangan, North Bekasi — a flood-free pocket, five minutes to Stasiun Bekasi (KRL commuter line) and Summarecon Mall, ten minutes to the Bekasi Barat toll gate, and near the planned MRT Phase 3. For a two-storey house in the Rp 700 million band with transit access that complete, a Rp 5 million installment makes a lot more sense as a long-term commitment.

If you're also weighing a business property, Ruko Sapphire sits in the same area. The Kingspoint team is used to helping buyers map out simulations across several partner banks — including helping estimate which net income will be used before your file goes to the bank.