A comprehensive housing affordability package is unlikely in the forthcoming federal budget, economists say, following the Turnbull government's stance that tighter regulatory measures are already taking pressure off housing prices.

The government is reportedly considering allowing first home buyers to sacrifice their salary to save a home loan deposit more quickly, similar to current superannuation arrangements, and slugging investors with a tax on vacant properties in next Tuesday’s budget. Other options reportedly under consideration are exemptions to both the $1.6…