Methodology & transparency
How we source & update our data
Every rate, yield, and date on this site traces back to an official primary source. This page explains where the numbers come from, how often they refresh, what we compute versus simply surface, and how we fix mistakes when we find them.
Where the data comes from
SSB, T-bill, and SGS figures come directly from the Monetary Authority of Singapore public statistics API, distributed under CC-BY 4.0. We surface the values MAS publishes — cut-off yields, median yields, issue and auction dates, allotment figures — as they are reported.
For facts beyond the bond data itself, we cite the authority that owns the rule: IRAS for tax treatment, the CPF Board for CPF rates and scheme rules, and SGX/CDP for secondary-market trading and settlement. Every numeric claim in our explainers links to its primary source.
How often it updates
- Ingest: an automated job fetches fresh MAS data every 4 hours, with retries and validation.
- Rebuild: when the data changes, the static pages are re-rendered and redeployed automatically.
- Freshness badge: every page shows when the pipeline last checked MAS data; it flags as stale after 26 hours. See the freshness API.
- Live vs. written figures: rate numbers pulled from the live data layer are always current; figures written into article prose carry an explicit "as of" date and a pointer to verify.
What we report vs. compute
We report the figures MAS publishes; we do not re-rank, score, or recommend products. Where a page derives a value — for example, a chart's trailing range or a worked interest example — the calculation is shown so you can follow the arithmetic. The underlying inputs always remain the published MAS values, and time-sensitive third-party rates (such as fixed-deposit or cash-account rates) are labelled "as of" a date and linked out, because they change frequently.
Corrections
We aim to be accurate, but errors happen. When we find or are told about a factual mistake, we correct it fully and — for anything material — add a dated note saying what changed, rather than silently overwriting it. Spotted something wrong? Email [email protected] with the page and the figure, and we'll check it against the primary source.
SGYieldHub is independent and not affiliated with MAS, CPF Board, IRAS, or any financial institution. Everything here is factual information, not financial advice — always verify against the primary source before acting.