TV licence fee renewals dropped 25 per cent in the first week of July according to new figures seen by Today FM.
It marks a significant fall in licence fee revenue in the wake of three weeks of controversy at RTÉ.
The figures were released to Fine Gael TD Brendan Griffin.
3,428 fewer households renewed their licence fee when compared with the same time last year.
There was also a significant fall in new licence fee sales, which were down almost 40% from the previous year.
June saw a more modest decline in total licence fee sales of a little over 2 per cent, with much of the drama playing out in July.
The figures mean a combined fall in licence fee revenue through June and the first week of July of almost 934,000 euro.
It comes as the Taoiseach has urged people to continue to pay the license fee.
He says it supports independent productions as well as RTÉ.
RTÉ has previously estimated it loses 65 million euro a year to licence fee evasion, which had stood at 15% prior to the recent controversy.
Additional reporting by Today FM's Political Correspondent, Seán Defoe.
