A Fine Gael spokesperson has confirmed that Galway Senator Fidelma Healy Eames’ car was seized last month for not having a current tax disc.
The incident happened on 2 July at rush hour in Galway city.
It is understood that the car was towed by contractors on behalf of gardaí.
Under road traffic legislation gardaí are empowered to seize a car if its tax is one month or more out of date or not properly displayed.
In a statement, she said: “On the 2 July I was stopped by gardaí in Galway city and found not to have a valid tax disc. This was due to an oversight on my part.
“I was completely in the wrong. The car is now taxed. I wish to apologise to the gardaí and the public.”