I am looking for some confirmation.. research or article or otherwise.. that having forms with a whole host of required fields that are not strictly necessary to communicating the data/message the user is trying to submit will turn people off of bothering to submit it. I know there's mention of this in Steve Krug's 'Don't Make Me Think' book, but I'd like something I can link to if possible!

  • I would only put needed info on a form. Why make the user think about something that is not necessary? If it is really optional, put it elsewhere in the workflow. I guess this would mean that all fields on a form would be "required" for the function that the form was per-forming.
    – user67695
    Apr 7, 2016 at 15:55

2 Answers 2


Each case is different, but in general the more required fields you have on a form the higher the likelihood that your user will get frustrated (aka form fatigue).

If you have a specific page you are vetting, i'd recommend doing an A/B test. Variant A has all the required fields, variant B has the minimum set - see which form converts better, then make a decision.

  • +1 for real-world testing of your exact scenario. That said, I'm willing to bet right now that the one with less required fields wins.
    – scunliffe
    Dec 9, 2010 at 13:01

You should read up on forms at Luke Wroblewskis website. It is full of good information on the subject and I consider his book Web form design: filling in the blanks an invaluble source of knowledge for most questions like yours.

Your Answer

By clicking “Post Your Answer”, you agree to our terms of service and acknowledge you have read our privacy policy.

Not the answer you're looking for? Browse other questions tagged or ask your own question.