We use this one: http://github.com/edavis10/redmine-invoice-plugin http://github.com/edavis10/redmine-invoice-plugin. Simple (a bit too simple) but gets the job

We use this one: http://github.com/edavis10/redmine-invoice-plugin http://github.com/edavis10/redmine-invoice-plugin. Simple (a bit too simple) but gets the job done and can autofill based on timesheet entries.