Card Margin

What Card Margin is. Card Margin is a web app that helps sports card collectors and sellers track what they buy and sell and see their profit after fees, shipping and grading. By creating an account you agree to these terms.

Your account. You need an email address and password to use Card Margin. Keep your login private; you’re responsible for activity on your account. You must be at least 18, or have a parent or guardian’s permission.

Free trial. New accounts get 30 days free. No payment card is needed to start. When the trial ends, you need a subscription to keep using the app. Your cards stay saved.

Subscription and billing. A subscription costs $5.00 per month (USD), plus any tax required where you live. Payments are processed by Stripe. Your subscription renews automatically each month until you cancel. If you subscribe during your free trial, your first charge happens when the trial ends. If we ever change the price, we’ll email you at least 30 days before it applies to you.

Cancellation and refunds. You can cancel anytime in Account → Manage billing. When you cancel, you keep access until the end of the month you’ve already paid for, and you won’t be charged again. Payments aren’t refunded, including for partial months or unused time, except where the law requires it. If you think you were charged by mistake, email us and we’ll look into it.

Connecting eBay. If you connect your eBay account, you allow Card Margin to read your orders, fees and shipping label costs. Card Margin can’t list, buy, change or cancel anything on eBay. You can disconnect anytime in Account settings. eBay is a separate company and its own terms apply to your eBay account.

Your numbers are estimates. Profit, ROI and fee figures depend on data from eBay, files you upload and what you enter. They may be incomplete or delayed, for example when eBay posts a shipping label late. Card Margin is a record-keeping tool, not tax, accounting or financial advice. Check important figures, especially for taxes, against your own records.

Fair use. Don’t use Card Margin to break the law, to access other people’s accounts, or to overload, copy or reverse-engineer the service. We may suspend accounts that do.

Your data. Your cards and settings belong to you. See our privacy policy for what we store and how it’s used. You can export your cards anytime with “Copy all as CSV,” and ask us to delete your account.

Availability and changes. We work to keep Card Margin running, but it may sometimes be unavailable, and features may change. We may update these terms; if a change is significant, we’ll let you know by email or in the app before it takes effect.

Limits on liability. Card Margin is provided “as is.” To the extent the law allows, we aren’t liable for indirect or consequential losses, such as lost profits or tax penalties, and our total liability to you is limited to what you paid us in the 12 months before the claim.

Contact. Questions, billing problems or account deletion: cardmarginhelp@gmail.com