# POSB Bank

> Source: https://docs.barcoder.ai/docs/wallets/posb-bank
> research date 2026-05-31 · extracted at 2026-10-07
> Publisher: Barcoder — encyclopedia of QR, barcode and payment-code standards

Specifications:
- [POSB — official](https://www.posb.com.sg/)

## Overview

**POSB Bank** is **Singaporean savings bank brand operated by DBS Bank Ltd** + **Singapore's largest savings bank by retail customers** + **DBS Group SGX: D05 parent post-2001 DBS + POSB merger consolidation** + **~4M+ Singapore POSB customers within DBS Group** <sup>[1][1], [Singapore report](https://docs.barcoder.ai/docs/payments/SG)</sup>.

## History

**Jan 1 1877 — Post Office Savings Bank POSB founded by Singapore colonial government** distinctive Singaporean banking heritage as Singapore's oldest savings bank.

**Nov 16 1998 — Singapore government sells POSB to DBS Group for S$1.6B**.

**2001 — POSB + DBS merger consolidation under DBS Group; POSB brand retained as DBS savings bank brand for Singaporean retail customers**.

**2010 — DBS digibank SG mobile app launch covering POSB customers**.

## Ownership & operator

**Operating entity**: **POSB Bank** (Singaporean savings bank brand operated by DBS Bank Ltd; DBS Group parent).

**Major shareholders**: **DBS Group Holdings Ltd (SGX: D05; Singapore's largest commercial bank by assets; Temasek Holdings Singapore sovereign wealth fund ~29% major shareholder) fully owned**.

**Regulators**: **MAS**.

## Technical integration

DBS digibank SG mobile app (iOS + Android; covers POSB customers; ~4M+ Singapore POSB customers within DBS Group) + posb.com.sg + dbs.com.sg online + POSB branch network across Singapore + POSB everyday Visa + Mastercard cards; PayNow + SG IBAN + SGQR + FAST SG.

## Implementations & partners

**DBS Group parent**: [DBS Bank (Singapore)](https://docs.barcoder.ai/docs/wallets/dbs-singapore) (DBS Singapore; SGX: D05; Singapore's largest commercial bank by assets; Southeast Asia's largest banking group by assets + market capitalization) + [DBS PayLah!](https://docs.barcoder.ai/docs/standards/dbs-paylah) (DBS PayLah! Singapore mobile wallet) + [DBS Hong Kong](https://docs.barcoder.ai/docs/wallets/dbs-hk) (DBS Hong Kong; DBS Group Singapore parent).

**Major Singaporean banking + payments competitors**: [United Overseas Bank (UOB)](https://docs.barcoder.ai/docs/wallets/uob-singapore) (UOB United Overseas Bank; SGX: U11; Singapore's #2 commercial bank by assets) + [OCBC Singapore App](https://docs.barcoder.ai/docs/wallets/ocbc-bank) (OCBC Oversea-Chinese Banking Corporation; SGX: O39; Singapore's #2 commercial bank by assets) + [Standard Chartered Singapore](https://docs.barcoder.ai/docs/wallets/standard-chartered-singapore) (Standard Chartered Singapore; LSE: STAN + SEHK: 2888) + [Citibank Singapore](https://docs.barcoder.ai/docs/wallets/citibank-singapore) (Citibank Singapore; Citigroup NYSE: C subsidiary) + HSBC Singapore (HSBC Singapore; HSBC Holdings global UK parent) + [Maybank Singapore](https://docs.barcoder.ai/docs/wallets/maybank-singapore) (Maybank Singapore; Malayan Banking Berhad Malaysian parent) + [Trust Bank (Singapore)](https://docs.barcoder.ai/docs/wallets/trust-bank) (Trust Bank Singapore; Standard Chartered + FairPrice JV; Singapore's largest digital-only retail bank by customers).

**Regulators**: MAS.

## Status

**Active, Singaporean savings bank brand operated by DBS Bank Ltd + Singapore's largest savings bank by retail customers + DBS Group SGX:D05 parent post-2001 DBS + POSB merger consolidation + ~4M+ Singapore POSB customers within DBS Group** <sup>[1][1], [2][2]</sup>.

## Sources

[1]: https://www.posb.com.sg/ "POSB — official"
[2]: https://en.wikipedia.org/wiki/POSB_Bank "POSB Bank — Wikipedia"
[sg-cro]: https://docs.barcoder.ai/docs/payments/SG

- [1] [POSB — official][1]
- [2] [POSB Bank — Wikipedia][2]
- <sup>[Singapore report](https://docs.barcoder.ai/docs/payments/SG)</sup> In-corpus: `reports/countries/SG-singapore.md`

## Source

Biography extracted from [posb-bank.md](https://docs.barcoder.ai/source/wallets/posb-bank). See `matrix.md` for standards-support matrix if present.