Betting taxes are to be extended to online bookmakers and gambling exchanges.
Internet operators had previously been exempt from the levy on wagers placed in bookies shops and at track-sides.
Finance Minister Brian Lenihan revealed the move in the Finance Bill, which gives effect to the Budget along with other new measures.
Plans to axe property tax reliefs have been shelved ahead of an investigation into their impact, under the bill which has to be passed by the Dail.
Mr Lenihan said he was postponing the proposals until next year after lobbying from property investors and landlords.
An economic assessment will examine the effect of cutting reliefs on so-called Section 23 properties.
Government officials met with the Irish Taxation Institute, Irish Hotels Federation, the Construction Industry Federation, the Irish Property Owners' Association, Irish Auctioneers and Valuers Institute and the Society of Chartered Surveyors about the planned changes.
The Bill proposes Revenue be allowed to expose tax defaulters before the sum owed has been agreed and paid.
Revenue will also be handed new powers to pursue false claims for tax reliefs and tax credits. Private insurance health levies will increase from 185 euro to 205 euro for adults and from 55 euro to 66 euro for under 18s.
The date for paying income tax will be brought forward a month, from October 31 to September 30, and it can now be paid by credit card, under the legislation.