Terms & corrections
The Rate Ledger is a historical archive of the product data that Australian lenders publish about themselves under the Consumer Data Right. Lenders with CDR obligations must expose their advertised rates, fees and product terms through public, standardised APIs. We read those published feeds each day, keep every version, and show how they change. We do not receive data from lenders privately, we do not accept payment from any lender, and we carry no advertising. What you see is the record, reproduced from the source.
What the data quality grade means, and what it does not
Each lender carries an A to E grade. It measures one narrow thing: the quality and standards-conformance of the data that lender publishes through the CDR. It is built only from behaviour we can observe and count in the published feed, such as whether a lender's freshness timestamps track its actual rate changes, whether required fields are populated in the structured form the standard requires, and whether the endpoints we are entitled to read actually return valid data. Every point of every grade traces to specific payloads on specific dates, set out in the methodology.
The grade is not a rating of the institution. It says nothing about a lender's financial soundness, the competitiveness of its rates, the quality of its products, or how it treats its customers. A lender can publish excellent products through poor data, or ordinary products through immaculate data. A low grade means the published data has defects a data user would trip over, not that the lender is one to avoid. We state this plainly because the distinction matters: we grade the data, not the bank.
Accuracy and corrections
We work hard to be right, and we are transparent enough to be corrected. Because every figure is derived from dated, content-addressed source payloads through a published method, we can always show exactly what drove a number, and we can recompute it. If you believe a grade, a rate, a date or any other fact on this site is wrong, tell us at admin@therateledger.com. Say which lender and which figure, and we will check it against the archived source and respond.
Where we are wrong, we fix it and the correction flows through on the next daily rebuild. We have already corrected our own mistakes this way, including a collection fault that briefly understated several lenders before we found and repaired it. Corrections to the underlying method are dated and recorded, so the history of how a grade was computed stays auditable rather than quietly rewritten.
If you are a lender and think your grade is unfair, the most useful response is usually to look at the specific items behind it, since each one points to a concrete, fixable gap in what you publish. Improving the published data improves the grade at the source, which is the outcome we would both prefer.
Not financial or legal advice
Nothing here is financial, credit or legal advice, and nothing here is a recommendation to choose, avoid or deal with any lender or product. Advertised rates are archived as at the dates shown, may have changed since, and the rate any individual is offered depends on their circumstances. Confirm current rates and terms directly with the lender before making a decision, and seek advice suited to your situation. We are not a credit provider, a broker or a licensed adviser.
Data sources and use
The rate and product data is the lenders' own Product Reference Data, published under the Consumer Data Right and reproduced here as a public record. Historical coverage before our own collection began incorporates two archived open-source projects, the open-banking-tracker and ratecheck-au, both MIT licensed and credited accordingly. Reserve Bank of Australia cash rate figures come from the RBA's published decisions. Our collector identifies itself and its contact point at /bot. You are welcome to read and cite this site; please link back so readers can check the record for themselves.