If you're expecting search engine results, you're going to be disappointed.
What exactly are you looking for? Some callings can already submit receipts and payment requests online in LCR. I don't think there's any official church form to hand out to other members, but individual units have likely made up their own.
Have you searched the
Help Center? Try doing a Google search and adding "site:churchofjesuschrist.org/help" to the search criteria.
So we can better help you, please edit your
Profile to include your general location.