President Barack Obama plans to propose sparking job growth by injecting more than $300 billion into the economy next year, mostly through tax cuts, infrastructure spending and direct aid to state and local governments.

Obama will call on Congress to offset the cost of the short-term jobs measures by raising tax revenue in later years. This would be part of a long-term deficit reduction package, including spending and entitlement cuts as well as revenue increases, that he will present next week to the congressional panel charged with finding ways to reduce the nation's debt.

Almost half the stimulus would come from tax cuts, which include an extension of a two-percentage-point reduction in the payroll tax paid by workers due to expire Dec. 31 and a new decrease in the portion of the tax paid by employers.