Schools throughout the country will be closed on 24 November, after teachers voted in favour of industrial action against cutbacks.
The result of the ballots was announced by the three main teacher unions today.
A fourth union has already received a mandate for action.
The result means all schools, primary and second-level, as well as further education and third level colleges, will close on the day.
In a joint statement, the primary and second-level teaching unions said they were taking action because members had never before faced such a threat to pay, pensions and terms and conditions.
They say they fully recognise the serious national problem but want more of an emphasis on taxation as well as cuts.
This means the country's 65,000 teachers will withdraw their labour on 24 November and schools will have to close.
Second-level teachers voted 77% in favour of strike, primary schools teachers by 79%.
Third level teachers have already given their union a mandate.
In response, the Minister for Education said in a statement that industrial action will not address the country's financial difficulties.
Batt O'Keeffe called on teachers to pull together in the national interest.
