payback.ie

Payback has a built in BIK calculator.
Select 'Benefit In Kind' from the drop down in the elements grid, and then click the 'View...' button that appears at the right of the grid.

You can also manually enter BIK amounts in Payback:
- Type the description into the elements grid. (eg company car)
- Click the 'More>>' button at the top right of the elements grid
- Change the Type to 'BIK'.
- Enter the BIK amount in the Amount column.

The ready reckoner is here:
http://www.revenue.ie/en/tax/it/leaflet ... koner.html

More information about BIK is here:
http://www.revenue.ie/en/tax/it/leaflet ... index.html