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.

With Storage connected, splitforms accepts file uploads up to 5 MB per file. The retained receipt can be referenced through signed links in notification/dashboard workflows and webhook payloads. 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.