How to Actually Raise Your Credit Score — Submitting Utility Payment History for Same-Day Results
When your credit score decides your loan limit or whether you get a card, it is easy to think "just don't miss a payment" is enough. But even with no late payments, a score can stay low simply because your transaction history is too thin. This is where submitting non-financial data — phone bills, national pension, health insurance premiums — comes in. Even a first-jobber who has never taken out a loan can try this today; here is the actual procedure.
Why Phone and Utility Payment History Counts Toward Your Credit Score
Credit bureaus like NICE (Credit.co.kr) and KCB (AllCredit) traditionally score people mainly on financial transaction data — loan and card usage history. The problem is that people who don't use credit cards or have never taken a loan simply lack this data, so their scores end up low by default. To fix this gap, both bureaus let you submit non-financial payment records you've kept up faithfully every month — phone bills, national pension, health insurance premiums, and national/local taxes — for bonus points. It is especially effective for first-jobbers or freelancers who were shut out of credit cards or overdraft accounts from the start.
Four Items You Can Submit
The items currently recognized for submission are, broadly, mobile phone bills, national pension contributions, health insurance premiums, and national/local tax payment records — four in total. You can submit just one, or several together to add more history. Because payment records from the National Tax Service (Hometax), National Health Insurance Service, and National Pension Service are linked through MyData, in most cases you don't need to pull paper receipts — everything is looked up and connected inside the app.
The Condition: "At Least 6 Months, No Delinquency"
To earn bonus points, you need a record of paying on time for at least the last 6 months, with no delinquency. For example, if you try to submit phone bills but missed even one payment in the last 6 months, that item is excluded from consideration. On the other hand, if your phone bills have been late before but your national pension or health insurance premiums have been clean for 6 months or more, you can submit just that item and still get the bonus. Each item is reviewed individually, so not every category needs to be spotless.
Two Ways to Submit
The simplest way is to look for a "Raise My Credit Score" or "Submit Non-Financial Information" menu inside a fintech app such as Toss, Naver Pay, or Payco. After verifying your identity and agreeing to MyData linkage, the app automatically pulls your records from the National Tax Service, the health insurance corporation, and your carrier, and sends them to the credit bureau — no paperwork needed, just a few taps. If you'd rather not use an app, you can sign up directly at NICE Credit (credit.co.kr) or KCB AllCredit (allcredit.co.kr) and go through the same process under a "Register Non-Financial Information" menu. Both sites let you apply with a free membership.
How Big the Bonus Is, and When It Shows Up
The actual bonus varies by person, but for those with a short or thin transaction history, it commonly lands between 5 and 30 points per item. People who already have a thick financial history may see little or no bump. If you submit through MyData linkage, the bonus is usually reflected in your score the same day you apply; if you attach documents directly, review can take a few days.
Why You Still Need to Pay Attention Afterward
Submitting once does not mean the boost lasts forever. The non-financial information bonus is valid for only 6 months from the date you submit it. Once 6 months pass, the effect disappears, so to keep the boost you need to repeat the same process and resubmit every 6 months. Also, if you become even briefly delinquent on your phone bill or utilities within 6 months after the bonus is applied, that item's bonus can be canceled — so keep autopay set up and stay on top of due dates even after submitting. Setting a calendar reminder 6 months out helps you not miss the resubmission window.
Worth Checking Together
Raising your credit score helps with loan approval, and if you already have a loan, it's worth also checking whether an interest rate reduction request could go through. If you already have several delinquencies piling up, it makes more sense to first sort out your repayment burden through a debt restructuring request before submitting non-financial data. If you want to revisit the basics of managing your credit score day to day, credit score habits and common misunderstandings is also worth a look.
Step-by-Step Summary
1. Check which of the last 6 months of phone, national pension, health insurance, and tax payments were made without delinquency.
2. Try submitting through the "Raise My Credit Score" menu via MyData linkage in an app like Toss or Naver Pay.
3. If you'd rather not use an app, sign up at NICE Credit or KCB AllCredit and register the non-financial information directly.
4. Confirm the reflected score, and note down a reminder to resubmit again in 6 months.
The size of the bonus varies depending on how thin or thick your existing credit history is, and it does not apply equally to every applicant. Check your own account on NICE Credit or KCB AllCredit to confirm exactly how it was reflected for you.
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