The RNID has won a prize for public reporting and accountability for its Impact Report, which appraises how the organisation performed in 2004/05.
The charity came top of the category for national organisations with an annual turnover of less than £50m in the awards, which are run by the Chartered Institute for Public Finance and Accountancy and PricewaterhouseCoopers. Award judge Clive Caseley, who is associate director of Verve Communications, said the panel was impressed by the charity's candour.
"It was up front and without froth," he said. "The report contained honest judgements about whether the charity had met its targets, and in some cases it hadn't. The charity demonstrated a sincere attempt to hold itself to account."
Sarah Moss, head of marketing at the RNID, said: "In the report, we have an accessible summary looking at turnover, income and expenditure, so financial information is available to stakeholders in a format they can understand."
Moss is keen that the RNID win should continue to raise the benchmark for sector accountability. She said it was "definitely considering" producing guidelines so other charities could follow the impact template.
The prize was presented in a ceremony at the Harrogate International Centre, North Yorkshire, last week.
The Charities Aid Foundation and the Institute of Chartered Accountants in England and Wales are running the Charities' Online Account Awards to reward outstanding presentation of charity accounts on the net. Graham Ullett, head of marketing at CAF, said: "The award is about helping donors see how charities can achieve their mission." Entries close on 17 July.