This method of using Google Forms with Google Sheets was ostensibly designed to gather and analyze survey data, but with a few tweaks it works just as well to record your financial transactions ...

Using Google Docs to Create Fillable PDFs Google Docs itself is extremely limited in its ability to generate forms.

You can use Google Forms to create online surveys, quizzes, and feedback pages. Here’s how.

Learn how to create a fillable form in Google Docs. You can insert checkbox, signature box, etc. in Google Docs using this guide.