tax losses carried forward and offset (налоги) gen.

[drifting_along]

Помогите, пожалуйста перевести тему сабжа в следующем контексте:

Following the amendment voted by the House of representatives with regards ti the restrictions imposed on TAX LOSSES CARRIED FORWARD AND THEIR OFFSET, the Comissioner of Income Tax has disclosed his position on specific topics.

... Taxable income arising in 2012 may only be offset against taxable losses of 2007 onwards.

... Any unutilised losses are carried forward to be offset with profits from PEs and then with profits from other activities.

В чем вообще разница между offset with и against?