Contact Form Best Practices: How Many Fields, and Which Ones?
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Ask only for what you need to reply and quote: name, phone or email, suburb, and what the job is. Every extra required field gives people a reason to give up. Add a photo upload for trades where a picture saves a site visit, tell people what happens next, and say how you'll use their details.
Which fields should you include?
| Field | Required? | Why |
|---|---|---|
| Name | Yes | To address them |
| Phone | Yes for trades | Most jobs are arranged by phone |
| Optional or yes | For sending the quote | |
| Suburb | Yes | Tells you if they're in your area |
| What do you need? | Yes | Free text, or a short dropdown of your main services |
| Photo upload | Optional | Saves a site visit for many jobs |
| Preferred contact time | Optional | Helps you call when they can answer |
This list is our general guidance for service businesses.
What should you leave out?
- Full street address before you've even spoken
- Budget fields that force a number; make them optional if you use them
- "How did you hear about us" as a required field
- CAPTCHAs that are hard to solve on a phone; use a hidden spam filter where possible
- Long dropdown lists people have to scroll through
How do you make the form work on mobile?
- Use the right keyboard: phone fields should bring up the number pad
- Big tap targets and labels above each field, not inside it
- Show errors next to the field, in plain words
- Keep a tap-to-call button near the form for people who'd rather ring. See mobile tradie website design
- Make the form accessible: labels, focus states and readable contrast. See website accessibility in Australia
What should happen after they press send?
- A thank-you message that says when you'll reply, such as "within 2 business hours"
- An email to you with all details, sent to an inbox someone checks
- An optional automatic email to them confirming you got it
- Tracking, so you can count form leads. See Google Analytics 4 for business owners
Privacy and spam: what do Australian businesses need to know?
If your business is covered by the Privacy Act, the OAIC says you need to tell people about the collection of their personal information, such as who you are, why you're collecting it and how to see your privacy policy (OAIC). Many small businesses under $3 million turnover are exempt, but some, such as health service providers, are covered regardless (OAIC). A one-line note under the form linking to your privacy policy is good practice either way. See do you need a privacy policy.
If you want to send newsletters or offers, add a separate, unticked opt-in box. The ACMA says commercial messages need consent and a working unsubscribe (ACMA). This is general information, not legal advice.
What does a good trade quote form look like?
Here's a simple layout that works for most tradies and home services. Copy the order and wording, then adjust the service list to match what you actually do.
| Order | Label shown | Type of field |
|---|---|---|
| 1 | What do you need help with? | Short dropdown of your main services, plus "Something else" |
| 2 | Tell us a bit more | Text box, two or three lines |
| 3 | Suburb | Short text field |
| 4 | Your name | Text field |
| 5 | Best phone number | Phone field |
| 6 | Email (optional) | Email field |
| 7 | Add photos (optional) | File upload |
| 8 | Get a quote | Button with a clear action word, not "Submit" |
Starting with the job, not personal details, eases people in. They've already committed by the time you ask for a phone number. This is our general guidance; test it on your own site.
How do you set up fields so phones fill them in for you?
Small technical details make a big difference on a phone. Ask whoever builds your site to check these:
- Use the correct field types, so a phone field brings up the number pad and an email field brings up the @ key. Google's web.dev guide recommends this to give the right mobile keyboard and basic browser checking (web.dev)
- Add autocomplete settings for name, phone, email and suburb, so the browser can fill them in with one tap. The same guide notes this matters most on mobile (web.dev)
- Don't force a phone number format. Accept spaces, brackets and +61 and tidy it up afterwards
- Keep each field full width on mobile, one per row
How do you make the form accessible?
An accessible form works for people using screen readers, keyboard-only users, and anyone squinting at a phone in bright sun. The W3C's Web Accessibility Initiative has a free forms tutorial covering the basics (W3C WAI):
- Give every field a visible label linked to it in the code, not just grey placeholder text
- Group related options, such as a set of checkboxes, with a short heading
- Explain any rules before the field, such as "photos up to 10 MB"
- When something's wrong, say what and how to fix it, next to the field
- Confirm success clearly after sending
For the wider picture, see website accessibility in Australia.
How do you stop spam without annoying real customers?
Every public form attracts junk. The trick is to block bots without making real people solve puzzles.
| Method | How it works | Effect on customers |
|---|---|---|
| Hidden honeypot field | A field humans can't see; bots fill it in and get rejected | None |
| Invisible bot checks | A background check that scores the visitor without a puzzle | Usually none |
| Time check | Rejects forms sent faster than a person could type | None |
| Visible puzzle CAPTCHA | The person picks images or types letters | Frustrating on phones; use as a last resort |
Most form tools and website builders include at least one of the first three. Turn them on before you reach for a puzzle.
Should you use a multi-step form?
For simple jobs, one short form is best. For jobs that need more detail, such as renovations or solar, splitting the form into two or three short steps can feel easier than one long page. The W3C's tutorial suggests showing progress so people know how many steps are left (W3C WAI).
- Step 1: the job and suburb
- Step 2: details and photos
- Step 3: name and contact details
- Show "Step 2 of 3" at the top, and let people go back without losing what they typed
Ask for contact details last in a multi-step form, but make sure partial answers aren't stored or used without the person finishing and sending it.
How do you make sure form emails actually arrive?
A form that works on screen but sends enquiries to a spam folder is worse than no form, because you don't know you're missing them.
- Send a test enquiry every month, and after any change to your website, email or domain
- Send form notifications to an inbox someone checks daily, ideally two people
- Make sure your domain's email sending is set up properly. Google's sender guidelines explain the authentication that keeps mail out of spam (Google)
- Store enquiries in your website or form tool too, so nothing is lost if an email goes missing
- Use a clear subject line for notifications, such as "New quote request: hot water, Deer Park"
If you've ever wondered why the form has suddenly gone quiet, this is the first thing to check.
What about photo uploads?
Photos let you quote many jobs without a site visit, and they help you turn up with the right parts. A few things make uploads work well:
- Allow common phone formats, such as JPG, PNG and HEIC
- Set a sensible size limit and say what it is near the upload button
- Allow several photos, not just one
- Keep uploads optional so people without photos can still send the form
- Store photos securely and delete them when you no longer need them. Photos of people's homes count as personal information too, so treat them with the same care as names and numbers
Morphic builds quote forms that are short, mobile-friendly and tracked on every website we make for Melbourne small businesses. Get a free quote, or book a 30-minute call.
Related service. web design.
Related reading: Quote follow-up templates and Landing page design for Google Ads.
Title 14 to Title 15 and Main Content 14 to Main Content 15: leave empty.
Related reading. why your website isn’t getting enquiries.
Key Takeaways
Ask only for what you need to reply and quote.
Name, phone, suburb and job details cover most service businesses.
Make the form easy on mobile and accessible.
Say what happens next and track every submission.
Link to your privacy policy and use a separate opt-in for marketing.
Emon Datta
Founder, Morphic Agency
Morphic Agency is a Melbourne-based UX design agency. We've shipped 50+ products across 15+ countries.
