The current maximum allowed transit benefit is $245 per month for Calendar year 2013.
The maximum monthly statutory limit for transit benefits is set to decrease from $245 to $130 in 2014.
In January 2013, the American Taxpayer Relief Act of 2012 (H.R.8) temporarily raised the transit benefit statutory limit to $245 per month. This new amount was not intended to be permanent and expires at the end of 2013.
Unless a new statutory limit is approved by Congress, the statutory limit will decrease to $130 per month starting January 1, 2014. Source: IRS Revenue Procedures (rp-13-35).