Warranty Form in HTML — Working Code Template

<form action="https://splitforms.com/api/submit"
      method="POST"
      enctype="multipart/form-data">
  <input type="hidden" name="access_key" value="YOUR_ACCESS_KEY" />
  <input type="hidden" name="_subject"   value="New warranty registration" />

  <fieldset>
    <legend>Product information</legend>
    <label>Product model<input name="product_model" required /></label>
    <label>Serial number<input name="serial_number" required /></label>
    <label>Purchase date<input name="purchase_date" type="date" required /></label>
    <label>Purchased from
      <input name="purchased_from" placeholder="Amazon / Best Buy / our website" required />
    </label>
    <label>Receipt / proof of purchase
      <input name="receipt" type="file" accept="image/*,.pdf" required />
    </label>
  </fieldset>

  <fieldset>
    <legend>Your information</legend>
    <label>Full name<input name="name" required autocomplete="name" /></label>
    <label>Email<input name="email" type="email" required autocomplete="email" /></label>
    <label>Phone<input name="phone" type="tel" autocomplete="tel" /></label>
    <label>Address<input name="address" required autocomplete="street-address" /></label>
  </fieldset>

  <input type="checkbox" name="botcheck" style="display:none" tabindex="-1" />
  <button type="submit">Register warranty</button>
</form>

A warranty form captures the proof you'll need if the customer ever files a claim — product model, serial number, purchase date, receipt upload, customer contact info. Make every field required; warranty claims that can't be matched to a registered product are a customer-support headache you don't want.

Use `type="date"` for the purchase date — native browser date picker, ISO format on submission (YYYY-MM-DD) which is easy to filter and query later. Use `type="file"` with `accept="image/*,.pdf"` for the receipt upload — most customers snap a photo of the receipt from their phone, so accept images alongside PDFs.

splitforms accepts file uploads up to 10 MB per file on every plan. The receipt arrives as an email attachment AND a downloadable file from the dashboard AND a signed URL in any webhook. For a warranty product, webhook into your warranty-tracking spreadsheet (Google Sheets, Airtable) or directly into your CRM (HubSpot, Salesforce, Pipedrive).

If you sell hardware with serial number traceability, the serial-number field is the key — register the warranty against the serial so any future claim can be matched automatically. Cross-reference the serial with your manufacturing records on receipt to flag invalid serials (counterfeit or fraudulent registrations).

Serial + date + receipt upload. The keys to matching any future claim.