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Commerce & payments

Polar.sh in Core Forms

Sell digital products and subscriptions via Polar.sh.

Bundled with Core Forms — the WordPress forms plugin with every premium feature in the box. No add-on tax.

Get Lifetime — $249 Yearly — $59/yr

Bundled, no add-on tax Unlimited sites 20% off with code CFLAUNCH

Polar is the modern indie-software payments stack — global tax handled, customer accounts included, low fees. Core Forms hands the buyer to Polar's hosted checkout and trusts its webhooks to flip the submission paid.

What you get

How Polar.sh works in Core Forms

Hosted checkout

No card form on your site. Polar handles compliance, tax (MoR), receipts.

Webhook signatures

Polar's standard webhooks → submission flips to paid only after signature check passes.

Test + live tokens

Both stored side-by-side; switch with one toggle.

Set it up

Connect Polar.sh in 3 minutes

  1. 1

    Get an access token

    Polar Dashboard → Settings → API Keys, both modes.

  2. 2

    Configure in Core Forms

    Settings → Payments → Polar. Paste tokens + webhook secret.

  3. 3

    Enable on a form

    Form → Payment tab → Polar. Set amount, save.

Pairs well with

Related integrations

Stripe

Take one-time payments via Stripe Checkout when a form is submitted.

PayPal

Charge form users via PayPal — fixed amounts or donor-driven.

FluentCart

Hand a form submission off to FluentCart's checkout for products and subscriptions.

Browse all integrations →

Bundled with every Core Forms license.

Polar.sh — and every other integration on this site — is included with your license. Use code CFLAUNCH for 20% off either plan.

Get Lifetime — $249 Yearly — $59/yr