Credit Score Simulator (Vietnam / CIC)
If you have lived in a country with FICO or a similar bureau score, the first surprise in Vietnam is that there is no single public credit-score number for individuals. Instead, your borrowing history sits with CIC — the National Credit Information Centre of Vietnam (Trung tâm Thông tin Tín dụng Quốc gia), run under the State Bank of Vietnam. CIC records every loan, credit-card balance and, above all, your repayment status, and classifies each debt into one of five debt groups (Group 1 = standard/on-time, Group 5 = potential loss). When you apply for a loan or card, the bank pulls this CIC report first — a single slip into Group 3 or worse will usually sink an application.
The tool above uses an illustrative 300–850 scale to make those abstract effects concrete. This is not a real CIC score (CIC does not issue a number like this to individuals); it is a teaching model so you can compare the relative weight of different actions. Enter a base score, toggle one or more actions, and watch how far the score moves. For example, starting from 720: a combination of a missed payment, a new card and closing an old account drops the score 125 points to 595, while paying off balances and raising your limit lifts it +60 points to 780.
Read the output as a priority ranking, not an exact figure: on-time repayment carries the most weight, followed by how much of your credit limit you use, then the length of your history and how often you open new accounts. Every base score in the examples below is an illustrative assumption and does not reflect anyone's real profile.
How the simulator computes impact
The illustrative scoring model
The tool takes the base score you enter (in the 300–850 range), adds the impact of each action you select, then clamps the result back into 300–850:
simulated score = clamp( base score + sum of selected action impacts , 300 , 850 )
The per-action impacts are fixed to illustrate the relative weight of each credit factor:
| Action | Impact | Credit factor it stands for |
|---|---|---|
| Missed payment (>30 days late) | -100 | Payment history (heaviest) |
| Old account closed | -20 | Length of credit history |
| New credit card | -5 | New inquiries / new accounts |
| 1 year of aging | +10 | Length of credit history |
| Increased limit | +15 | Credit utilization |
| Paid off balances | +45 | Credit utilization |
Selecting every positive action adds at most +70; selecting every negative action subtracts at most -125. Because of the 300–850 clamp, an already-low profile cannot fall below 300 and an already-high one cannot exceed 850.
Why this is illustrative, not a CIC score
CIC does not publish a 300–850 number for individuals the way US bureaus do. What CIC actually provides is your debt group and a history of balances over time. The "payment history matters most, then utilization" weighting here mirrors the general principles of credit scoring — FICO publishes reference weights of roughly payment history ~35%, utilization ~30%, length of history ~15%, new credit ~10%, credit mix ~10% — used here purely as an illustrative assumption to rank actions, not as any Vietnamese institution's internal formula.
CIC debt groups (what actually decides approval)
- Group 1 — Standard debt: paid on time, or overdue by fewer than 10 days.
- Group 2 — Debt needing attention: overdue 10 to under 90 days.
- Group 3 — Sub-standard debt: overdue 90–180 days.
- Group 4 — Doubtful debt: overdue 181–360 days.
- Group 5 — Potential-loss debt: overdue more than 360 days.
Group 3 and above are generally treated as bad debt and seriously hurt future borrowing. Treat this as a general reference frame; the exact thresholds and classification are set by State Bank of Vietnam regulation, so confirm the current rules.
What the model does not do
It does not access real CIC data, does not produce a personalised score from your actual file, and does not predict any specific bank's decision. It is a learning tool to show which actions move the score in which direction, and by how much, so you can prioritise.
Worked example 1: a setback from a base of 720
Illustrative assumption: you enter a base score of 720 and select three negative actions.
| Action selected | Impact | Running score |
|---|---|---|
| Base score | — | 720 |
| Missed payment (>30 days late) | -100 | 620 |
| New credit card | -5 | 615 |
| Old account closed | -20 | 595 |
The score falls from 720 to 595 — a shift of -125 points. The missed payment alone (-100) does most of the damage; the new card (-5) and the closed old account (-20) add smaller drags for the inquiry and the lost account age. In CIC terms, a long-enough delinquency is what could push the debt from Group 1 toward Group 2 or beyond — the part lenders care about most.
Worked example 2: recovering from the same base of 720
Now the same base of 720, but selecting two utilization-improving actions:
| Action selected | Impact | Running score |
|---|---|---|
| Base score | — | 720 |
| Paid off balances | +45 | 765 |
| Increased limit | +15 | 780 |
The score rises +60 points to 780. Both actions lower your credit utilization — paying down what you owe (+45) and raising the available limit (+15) — which is why utilization is second only to payment history in the model. Note the asymmetry: the +60 you can earn here is smaller than the -125 a single bad sequence cost in example 1. Protecting a clean repayment record beats trying to optimise your way back from a missed payment.
Frequently asked questions
Does Vietnam have a FICO-style credit score?
Not really. Vietnam has no single public credit-score number for individuals the way the US has FICO. Your borrowing history sits with CIC (the National Credit Information Centre) under the State Bank of Vietnam, and each debt is classified into a debt group from 1 to 5. The 300–850 scale in this tool is an illustrative model to compare the relative impact of actions — it is not a real CIC score.
How much does one missed payment hurt my credit?
In the illustrative model, from a base of 720 a sequence including a missed payment, a new card and a closed old account drops the score 125 points to 595 — with the missed payment (-100) doing most of the damage. That reflects payment history being the heaviest factor. In real CIC terms, a long-enough delinquency can push a debt from Group 1 into Group 2 or worse, and negative records typically stay on file for years.
What are the CIC debt groups?
CIC classifies debts into five groups by days overdue: Group 1 (standard, under 10 days overdue), Group 2 (needs attention, 10–under 90 days), Group 3 (sub-standard, 90–180 days), Group 4 (doubtful, 181–360 days), and Group 5 (potential loss, over 360 days). Group 3 and above are generally treated as bad debt. The exact thresholds are set by State Bank of Vietnam regulation, so check the current rules.
Which factors affect a credit score the most?
By the general principles of credit scoring (FICO's published reference weights, used here as an illustrative assumption): payment history ~35%, credit utilization ~30%, length of history ~15%, new credit ~10%, and credit mix ~10%. In the tool this shows up as a missed payment costing 100 points (the heaviest) while paying off balances adds +45.
What credit utilization ratio should I aim for?
A common rule is to keep card balances below 30% of your limit, ideally below 10%. There are two ways to lower it: pay down balances (+45 in the model) or raise your limit without spending more (+15). Both fall under "credit utilization," the second-heaviest factor after payment history.
Will closing an old credit card lower my score?
It can. Closing an old account reduces your average length of credit history and removes that limit (pushing utilization up). In the illustrative model, closing an old account costs 20 points. Before closing a card, consider keeping a long-held, no-annual-fee account open to preserve both history and available credit.
As a foreigner in Vietnam, how do I check my credit file?
This tool does not access CIC data and produces no personalised score; the 300–850 number is a simulation. To see your real Vietnamese credit information you check your own CIC report — individuals are entitled to review their credit information under the rules. If you are new to Vietnam you likely have a thin file, so building an on-time repayment history (Group 1) is the fastest way to become bankable here.