How much is refundable medical expense supplement for 2013?

The refundable medical expense supplement for 2013 is calculated as the lower of $1,142 and 25% of the total of non-refundable medical expense amount claimed at line 332 and disability supports deduction claimed at line 215. The available supplement is reduced by 5% of family net income in excess of $25,278. When family net income reaches $48,118, the supplement works out to zero.

The $1,142 limit, the $25,278 threshold, and the $48,118 threshold are indexed annually.