A published rate at a stated time:for reference only, not a dealing line.
An exchange rate published by an official body at a fixed time for information and accounting purposes, such as the European Central Bank’s daily euro reference rates.
A reference rate is not a price at which anyone is obliged to deal.
In plain words
A reference rate is an exchange rate that an official body, such as a central bank, publishes at a set time of day as a record of where the market was. It is a single number for each currency, with no separate buying and selling price.
See it move
Stage 2 of 3: Set time
Why it matters
Reference rates are used where an agreed, neutral number is needed: converting figures in accounts, settling contracts that name the rate, or showing indicative conversions. A trader does not deal at a reference rate; dealing happens at live buying and selling prices, which move all day.
Worked example
An example only. The figures are round and invented for the arithmetic: they are not market prices.
A company must record a 10,000 euro invoice in US dollars, using that day’s published reference rate of 1.1000.
- 1Recorded value10,000 × 1.1000 = 11,000 US dollars.
- 2Later the same day the live market is at 1.105010,000 × 1.1050 = 11,050 US dollars.
- 3Difference11,050 − 11,000 = 50 US dollars.
The books show 11,000 US dollars because the reference rate was fixed for the day; a live deal would be done at whatever price the market then offers.
A common mistake
A reference rate is not a price anyone has promised to trade at, and it is not the live rate. It is a snapshot taken at one moment and published for information.
Check yourself
Educational information, not investment advice or a recommendation to trade.