Billing and Subscription

Overview

Centerline uses a per-aircraft subscription model — you pay based on how many active aircraft your organization manages, not on the number of members, admins, or reservations. This aligns cost directly with the core resource your club is managing, and means small clubs with one or two aircraft pay significantly less than larger operations with a full fleet.

Billing is managed through Stripe, which handles payment processing, invoicing, and subscription management. You don't need to manage a Stripe account directly — everything is accessible through the Billing tab in Setup, including a one-click link to the full Stripe Billing Portal where you can update payment methods, view and download invoices, and manage subscription details.

Required Role

You must have the Account Owner role to access billing information.

Accessing Billing

Click Setup in the navigation bar, then select the Billing tab.

Trial Period

Every new Centerline organization starts with a 60-day free trial. During the trial:

• No payment method is required to get started.
• All features are fully available — no functionality is restricted during the trial.
• The Billing tab shows your trial status and the exact date your trial ends.
• When there are 7 days or fewer remaining in the trial, a warning banner appears in the Billing tab reminding you to add a payment method.

At the end of the trial, if no payment method has been added, your subscription moves to a paused state. No data is lost during a billing pause, but access to the application may be restricted until a payment method is provided.

To avoid any interruption, add your payment method before the trial ends. You can do this at any time during the trial by clicking Manage Billing & Invoices and following the prompts in the Stripe Billing Portal.

Subscription Status

The Billing tab shows your current subscription status at a glance. Possible statuses include:

Status	Meaning
Trial	Free trial period is active
Active	Subscription is paid and current
Past Due	A payment attempt failed — a grace period is active
Unpaid	Payment failed and the grace period has elapsed
Canceled	Subscription has been canceled

Past Due and Grace Period

If a payment fails (for example, due to an expired card), your subscription enters Past Due status. Centerline provides a grace period during which you can resolve the payment issue without service interruption. The Billing tab displays how many days remain in the grace period.

During the grace period:

• All features continue to work normally.
• A warning banner appears on the Billing tab explaining the payment issue.

To resolve a past-due situation, click Manage Billing & Invoices and update your payment method in the Stripe Billing Portal. Stripe will automatically retry the payment.

If the grace period expires without a resolved payment, access may be restricted. Contact support if you need assistance.

Per-Aircraft Pricing

Your subscription quantity is automatically maintained based on the number of active (non-decommissioned) aircraft in your organization. You do not need to manually adjust the subscription when adding or removing aircraft — Centerline handles this automatically.

• When you add an aircraft, the subscription quantity increases.
• When you decommission an aircraft, the subscription quantity decreases.

The Billing tab shows your current active aircraft count so you can verify it matches your fleet. Billing changes from quantity adjustments are prorated to the current billing period.

Managing Your Subscription

Click Manage Billing & Invoices on the Billing tab to open the Stripe Billing Portal. From there you can:

• Add or update a payment method — Credit card, debit card, or bank account depending on what Stripe supports in your region.
• View and download invoices — Full invoice history for accounting and record-keeping.
• Review subscription details — Current plan, quantity, next billing date, and any applied discounts.
• Cancel subscription — If you need to close your account.

After completing actions in the Stripe portal, you're automatically returned to the Centerline Billing tab.

Promotion Codes

If you have a promotion code (from a referral, partnership, or special offer), you can apply it directly from the Billing tab:

1. Scroll to the Promotion Code card on the Billing tab.
2. Enter your code in the text field.
3. Click Apply.

If the code is valid and active, the discount appears immediately and is reflected on your next invoice. The applied discount is shown in the Promotion Code card so you can confirm it was applied correctly.

To replace an existing promotion code with a new one, enter the new code and click Replace. Only one promotion code can be active at a time.

Tips

• Add your payment method during the trial so you're not racing against a deadline when the trial ends. The process takes two minutes and eliminates any risk of disruption.
• Download invoices each month if you need to track Centerline as a club expense. The Stripe portal stores your full invoice history.
• If your club's tax situation requires specific information on invoices (like a business name or tax ID), add it to your Stripe customer profile in the billing portal.
• If you decommission aircraft at the end of a season and reactivate them in the spring, you'll see the subscription quantity adjust accordingly. This is expected behavior.
• For any billing questions not covered here, or if you believe there is an error in your subscription quantity, contact Centerline support.