Fianna Fáil has published proposals to introduce an effective ban on corporate donations to political parties and politicians.

Under the bill, corporate donations over €100 would have to be declared within 14 days.

The party also intends to push for a constitutional amendment this year to allow for the introduction of a more comprehensive ban on corporate donations.

This approach has been taken because of legal advice that a complete ban would most likely be unconstitutional.

Fianna Fáil leader Micheál Martin also said that Ireland's competitiveness would be severely damaged if the Government agreed to changes in how corporate tax is raised in negotiations to reduce the interest rate on the EU/IMF loan.

Mr Martin said it was vital to keep the common consolidated corporate tax base as it is.