Quick Takeaway: You can nudge your CBS score up within 1–3 months by paying every bill on time, keeping credit card utilisation under 30%, and stopping new credit applications. Major grade jumps (CC to BB) usually take 6–12 months of consistent behaviour. 1. What CBS Actually Measures Credit Bureau Singapore (CBS) pulls data from every bank and finance company in Singapore, then generates a score between 1000 and 2000 plus a grade from AA (lowest risk) down to HH (highest ris