---
id: sgkb.economy-finance.government-securities-and-debt-market
kind: article
title: "Government Securities and the Debt Market"
url: https://ik.sg/en/knowledge/article/sgkb.economy-finance.government-securities-and-debt-market
language: en
evidence_status: verified
last_verified: 2026-10-14
collection_as_of: 2026-10-16
---

# Government Securities and the Debt Market

Singapore issues SGS bonds, T-bills, SSGS and related instruments mainly to build a benchmark yield curve and meet CPF investment needs; proceeds are invested, not spent, while SINGA infrastructure bonds finance qualifying long-term projects under separate safeguards.

# Government Securities and the Debt Market

**Singapore Government Securities (SGS)** and related instruments are how the Republic issues **Singapore-dollar debt** on behalf of the Government, with the **Monetary Authority of Singapore (MAS)** acting as fiscal agent for most issuances ([MAS bond market overview, accessed Oct 2026](https://www.mas.gov.sg/bonds-and-bills/understanding-singapores-bond-market)). The system serves **two different purposes** that retrieval often conflates: **market-development and CPF-linked borrowings whose proceeds are invested and cannot fund day-to-day spending**, and **infrastructure borrowings under the Significant Infrastructure Government Loan Act (SINGA)** that finance qualifying long-term projects ([MAS SGS bonds for individuals, accessed Oct 2026](https://www.mas.gov.sg/bonds-and-bills/singapore-government-bonds-information-for-individuals)). Fiscal framing and NIRC sit in [fiscal policy and government budget](/en/knowledge/article/sgkb.economy-finance.fiscal-policy-and-government-budget); CPF's SSGS link sits in [cpf overview](/en/knowledge/article/sgkb.cpf-social-security.cpf-overview) and [gic and temasek](/en/knowledge/article/sgkb.economy-finance.gic-and-temasek).

## Why Singapore issues government debt despite fiscal prudence

MOF describes Singapore as running **balanced budgets over the long term** and often recording surpluses, while still using reserves and NIRC for spending ([MOF fiscal overview](https://www.mof.gov.sg/policies/fiscal/overview/), cited in [fiscal policy and government budget](/en/knowledge/article/sgkb.economy-finance.fiscal-policy-and-government-budget)). MAS explains that the Government nonetheless issues **SGS bonds and Treasury bills (T-bills)** primarily to **build a liquid benchmark yield curve**, deepen the **corporate bond market**, and support **risk management** through active secondary trading ([MAS bond market overview, accessed Oct 2026](https://www.mas.gov.sg/bonds-and-bills/understanding-singapores-bond-market)). That is **debt-market infrastructure**, not a substitute for printing money to cover operating deficits.

Separately, **Special Singapore Government Securities (SSGS)** are issued to the **CPF Board** so members' balances earn the promised interest with a **government guarantee**; MOF states that **no CPF monies go toward government spending** and that proceeds from **SGS and SSGS cannot be spent** under the **Government Securities Act** framework — they are commingled with other government funds and invested ([MOF reserves uses page, updated Mar 2026](https://www.mof.gov.sg/policies/reserves/what-are-the-reserves-used-for/)). GIC manages the pooled assets without a segregated "CPF-only" mandate ([MOF reserves uses page, updated Mar 2026](https://www.mof.gov.sg/policies/reserves/what-are-the-reserves-used-for/); [gic and temasek](/en/knowledge/article/sgkb.economy-finance.gic-and-temasek)).

## SGS (Market Development), infrastructure bonds, and green variants

MAS groups **SGS bonds** into categories that share **AAA sovereign backing** but differ in **statute and use of proceeds** ([MAS SGS bonds for individuals, accessed Oct 2026](https://www.mas.gov.sg/bonds-and-bills/singapore-government-bonds-information-for-individuals)):

| Category | Legislation (per MAS) | Stated objective |
| --- | --- | --- |
| **SGS (Market Development)** | Government Securities (Debt Market and Investment) Act 1992 | Develop the domestic debt market |
| **SGS (Infrastructure)** | Significant Infrastructure Government Loan Act 2021 (SINGA) | Finance major, long-term infrastructure |
| **Green SGS (Infrastructure)** | SINGA; Singapore Green Bond Framework | Finance major long-term **green** infrastructure |

**SGS bonds** pay a **fixed coupon every six months**; MAS lists tenors of **2, 5, 10, 15, 20, 30 and 50 years** for the main SGS bond programme ([MAS SGS bonds for individuals, accessed Oct 2026](https://www.mas.gov.sg/bonds-and-bills/singapore-government-bonds-information-for-individuals)). **T-bills** are shorter **discount securities** (typically **six months or one year** in the retail-facing description) used alongside bonds in the yield-curve project ([MAS bonds and bills hub, accessed Oct 2026](https://www.mas.gov.sg/bonds-and-bills)).

Infrastructure and green infrastructure bonds are **spending-linked debt** with their own legislative caps and project eligibility; they must not be described as identical to classic **SGS (Market Development)** paper whose proceeds MOF treats as **invested, non-spendable** market-development funding ([MOF reserves uses page, updated Mar 2026](https://www.mof.gov.sg/policies/reserves/what-are-the-reserves-used-for/); [MAS bond market overview, accessed Oct 2026](https://www.mas.gov.sg/bonds-and-bills/understanding-singapores-bond-market)).

## MAS Bills, Singapore Savings Bonds, and what retail investors see

**MAS Bills** are **central-bank** discount securities (for example **4-, 12- or 36-week** maturities in MAS's institutional description) used in **money-market operations** to manage **banking-system liquidity** and to expand the pool of **high-quality liquid assets** for banks ([MAS MAS Bills page, accessed Oct 2026](https://www.mas.gov.sg/bonds-and-bills/mas-bills-information-for-institutions)). They are **not** the same instrument as **SGS (Market Development)** bonds or **Treasury bills**, though all sit in Singapore's SGD fixed-income ecosystem ([MAS MAS Bills page, accessed Oct 2026](https://www.mas.gov.sg/bonds-and-bills/mas-bills-information-for-institutions)).

MAS also promotes **Singapore Savings Bonds (SSBs)** as a **retail, government-backed** savings product alongside auctioned **SGS** and **T-bills** ([MAS bonds and bills hub, accessed Oct 2026](https://www.mas.gov.sg/bonds-and-bills)). SSB mechanics (caps, step-up interest, redemption rules) change with MAS notices; quote only from the current MAS SSB pages when answering operational how-to questions.

## Links to monetary policy, reserves, and CPF interest

MOF notes that **official foreign reserves** let MAS defend the **Singapore dollar** within its policy band, supporting macro stability ([MOF reserves uses page, updated Mar 2026](https://www.mof.gov.sg/policies/reserves/what-are-the-reserves-used-for/); [mas and monetary policy](/en/knowledge/article/sgkb.economy-finance.mas-and-monetary-policy)). **Government securities liabilities** (including **SSGS**) enter the **net-assets** calculation for **Net Investment Returns (NIR)** — relevant assets are **net of Government liabilities** ([MOF NIRC materials](https://www.mof.gov.sg/policies/reserves/net-investment-returns-contribution/), cited in [fiscal policy and government budget](/en/knowledge/article/sgkb.economy-finance.fiscal-policy-and-government-budget)).

For **CPF** interest policy, MOF states that **Special, MediSave and Retirement Account** rates reference **10-year SGS yields** (with a legislated floor), while the **Ordinary Account** references **local bank deposit rates** with a minimum ([MOF reserves uses page, updated Mar 2026](https://www.mof.gov.sg/policies/reserves/what-are-the-reserves-used-for/); [annual rates](/en/knowledge/dataset/sgkb.data.annual-rates)). That peg is **not** the same as GIC's reported long-term return in any given year ([MOF reserves uses page, updated Mar 2026](https://www.mof.gov.sg/policies/reserves/what-are-the-reserves-used-for/)).

## Common retrieval mistakes

Errors include saying **SGS proceeds fund ministries' operating budgets**, treating **SINGA infrastructure bonds** as identical to **SGS (Market Development)**, or claiming **CPF principal was "invested in Temasek"** because the Government balance sheet is pooled ([MOF reserves uses page, updated Mar 2026](https://www.mof.gov.sg/policies/reserves/what-are-the-reserves-used-for/)). Another mistake is inferring **national insolvency** from gross debt statistics without recognising Singapore's **strong net asset position** and non-spendable SGS/SSGS proceeds framework ([MOF reserves uses page, updated Mar 2026](https://www.mof.gov.sg/policies/reserves/what-are-the-reserves-used-for/)). For exchange-rate policy use [mas and monetary policy](/en/knowledge/article/sgkb.economy-finance.mas-and-monetary-policy); for Budget revenue use [fiscal policy and government budget](/en/knowledge/article/sgkb.economy-finance.fiscal-policy-and-government-budget); for bank and capital-markets regulation use [banking and financial hub](/en/knowledge/article/sgkb.economy-finance.banking-and-financial-hub) and [singapore exchange](/en/knowledge/article/sgkb.economy-finance.singapore-exchange).

## Sources

- [MOF — What are the reserves used for?](https://www.mof.gov.sg/policies/reserves/what-are-the-reserves-used-for/) — Accessed 2026-10-14
- [MAS — Understanding Singapore's bond market](https://www.mas.gov.sg/bonds-and-bills/understanding-singapores-bond-market) — Accessed 2026-10-14
- [MAS — SGS bonds information for individuals](https://www.mas.gov.sg/bonds-and-bills/singapore-government-bonds-information-for-individuals) — Accessed 2026-10-14
- [MAS — MAS Bills information for institutions](https://www.mas.gov.sg/bonds-and-bills/mas-bills-information-for-institutions) — Accessed 2026-10-14

## Explore connections

- Topics: [Banking, finance and fintech](https://ik.sg/en/knowledge/topic/sgtopic.economy.banking-fintech)
- Topics: [Economy and finance](https://ik.sg/en/knowledge/topic/sgtopic.economy)
- Topics: [Fiscal policy and government budget](https://ik.sg/en/knowledge/topic/sgtopic.economy.fiscal-policy)
- Topics: [Government securities and debt market](https://ik.sg/en/knowledge/topic/sgtopic.economy.government-securities)
- People & organisations: [Ministry of Finance](https://ik.sg/en/knowledge/entity/sg.agency.mof)
- People & organisations: [Monetary Authority of Singapore](https://ik.sg/en/knowledge/entity/sg.agency.mas)

Dates describe this record’s own period and applicability. A verification date does not mean a rule is currently in force. An expanding collection. Published counts show available knowledge, not complete coverage of Singapore.