How to Build Your Credit Back Up From Chapter 7. Part of the series: Credit Information & Tips. To build credit back up after filing for chapter seven, consider getting a prepaid credit card, getting someone to co-sign on a loan or getting a small government-sponsored loan, making timely payments to gain credibility. Build up better credit after filing for bankruptcy with information from a financial manager and currency trader in this free video on finance. Read more: http://www.ehow.com/video_4754968_bui...