Track Tally.so Forms: Complete Webhook Setup Guide 2026

Track every Tally.so form submission with full attribution — which link or campaign drove each lead — using Tally webhooks + Pimms. The Pimms dashboard includes an interactive Tally setup wizard that handles all technical details for you.

Tally.so is one of the simplest and most popular form builders, offering webhooks even on the free plan. Combined with Pimms, you get instant, real-time lead attribution with no third-party middleware or paid tools required.

Whether you use Tally for lead capture, surveys, or contact forms, Pimms tracks every submission and connects it to the exact campaign that brought the visitor.

Why track Tally forms with Pimms?

• Know which campaigns actually generate leads. You embed a Tally form on your landing page and share it across LinkedIn, email, and Twitter. Without Pimms, you see form submissions in Tally but can't tell which channel drove them. With Pimms, every submission shows exactly where the lead came from.

• Measure content-driven lead generation. You write blog posts with embedded Tally forms for newsletter signups or waitlists. Pimms connects each form submission to the specific article that brought the reader, showing you which content actually converts.

• Compare ad platforms side by side. Running Google Ads and Facebook Ads, both pointing to a page with a Tally form? Create separate Pimms links for each and see which platform generates more form fills — not just more clicks.

Prerequisites

• A Tally.so account (free or paid — webhooks work on all plans)
• A Pimms account (sign up here)
• A website or landing page where your Tally form is embedded

What you'll track

• Tally form submissions — Every form fill with the respondent's data and the campaign that brought them
• Lead attribution by campaign — Which ad, email, social post, or content piece drove each submission
• Campaign performance — Conversion rates and submission counts broken down by traffic source
• Multi-form analytics — Track all your Tally forms from one dashboard

How to set it up

Go to your Pimms dashboard, open Integrations → Tally, and launch the setup wizard. It walks you through installing the detection script, adding a hidden tracking field to your Tally form, configuring the webhook, and verifying with a test submission. Setup takes about 5 minutes.

What the setup wizard covers

The Tally wizard has 6 steps:

1. Install the detection script — Add the Pimms script to the page where your Tally form is embedded
2. Verify script installation — Confirm the script is loading and detecting the Tally domain
3. Add pimms_id hidden field — Add a hidden field to your Tally form that captures the tracking ID
4. Set up webhook in Tally — Configure Tally's webhook to send submissions to Pimms
5. Create a test link — Generate a tracking link to the page with your Tally form
6. Verify tracking works — Submit a test form to confirm attribution is connected

How it works

1. Install the Pimms detection script on the page where your Tally form is embedded — it detects visitors from Pimms links and sets up outbound tracking for the tally.so domain
2. When a visitor arrives via a Pimms link, the script automatically passes the click ID to the Tally form through a hidden field
3. The visitor fills out the form — the submission includes the Pimms tracking ID
4. Tally fires a webhook to Pimms with the form data and tracking ID, and Pimms attributes the lead to the original campaign

The webhook fires instantly when a form is submitted, so attribution data appears in your dashboard within seconds.

Best ways to share your tracking links

• Landing pages — Drive traffic to your Tally-embedded landing page with Pimms links to track conversion rates per campaign
• LinkedIn posts — Share your signup or waitlist form via a Pimms link to see which posts generate the most signups
• Email campaigns — Use Pimms links in newsletters to track which emails drive form submissions
• Paid ads — Point Google or Meta ads to a Pimms link to measure ad-to-lead conversion
• Product Hunt and communities — Track leads from launches and community posts with unique Pimms links

What you'll see in your dashboard

Your Pimms dashboard shows every Tally form submission in real time with full campaign attribution. For each lead, you'll see the form data, which Pimms link they clicked, from which platform, and which campaign. Filter by date, traffic source, or form to identify your best-performing channels and optimize your lead generation strategy.

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