From the creators of Taxi Booking for Joomla here is Share Cost - crowdfunding for Joomla.

Ideal for software developers, artistic types, local improvement projects, charities.

Note: This is not an extension that will help you running a crowd funding portal. It is for single organization use to get their Seed funding and crowd source some opinions on new ideas or ongoing projects. Read the documentation and contact us if you have any doubts.

Brake the projects into small pieces and collect the funds needed in stages as a separate jobs towards a bigger goal.

Share Costs key features:
* Fundraise through multiple contributors - crowdfunding
* Break a big project to small easy to explain and mange jobs or have just one fundraising goal
* Engage your current supporters and form a seed funding group should you decide to use a crowd funding platform in the future
* Harness the power of collective thinking via the built in Comment system for each job chunk
* Create project categories to fundraise for more than one project at a time
* Fully responsive design to fit any device screen
* Multi domain license fully open source GPL v.3