The carbon tax is passed to the door Tuesday censured by the Constitutional Council. The government promised to submit within three weeks, a new mechanism. Anyway, the series of texts budget voted in recent weeks Finance Act 2010, Act funding Social Security, supplementary budget for 2009 includes several other measures affecting the taxation of households this year. Here are the key.

• Ceiling overall tax loopholes

For income received in 2010, a taxpayer may not reduce their income tax using the tax loopholes (working from home, child care, grants to associations, Scellier …) beyond an amount equal 20 000 plus 8% of its taxable income. Introduced in late 2008, the overall ceiling was far more generous, to 25 000 plus 10% of income.Taxpayers who use the niches Dom-Tom, Scellier, or devices for tourist homes have a respite: they have signed an investment commitment before December 31, 2009, they escaped the drop in overall ceiling .

• Act Scellier

The reduction of income tax, taxpayers enjoyed buying a new home for rent under certain conditions, remains at the same level as in 2009 – representing 25% of the purchase price – for homes purchased in 2010 that they meet or not the standard "building low-power" (BBC). The "greening" starts from 2011 for non-BBC dwellings, the tax cut to 15% next year and 10% in 2012. For homes BBC, it remains at 25% in 2011 and then fell to 20% in 2012.The Scellier disappears at December 31, 2012.

For new housing, the loan rate zero (PTZ) was doubled in 2009 and will continue until June 30, 2009. Photo credits: Pascal SITTLER / REA