How to send a check with American Express Serve.
A guide to mailing a real paper check from your American Express Serveaccount — with premium options like Certified, Priority, and Express Mail that your bank doesn't offer.
American Express Serve bill pay vs. Check Supply.
See how Check Supply compares with American Express Serve's traditional bill-pay rails. Unlike your bank, Check Supply offers premium mail options — Certified, Priority, and Express — alongside faster processing and real-time tracking.
| Feature | American Express Serve bill pay | Check Supply |
|---|---|---|
| Processing time | 3–5 business days | Same day (before 3 PM ET) |
| Delivery time | 5–7 business days | 1–5 business days |
| Mobile app | Limited mobile features | Full iOS app |
| Tracking | Limited | Real-time status + receipts |
| Setup | Online banking enrollment | Two-minute Plaid flow |
| Certified Mail | Not available | Available · signature + tracking |
| Priority Mail | Not available | Available · 1–3 days with tracking |
| Express Mail | Not available | Available · 1–2 day delivery |
American Express Serve
American Express Serve is supported by Check Supply for secure check mailing with premium delivery options.
Mailing a check from American Express Serve in under four minutes.
With Check Supply, you get access to premium mail options like Certified, Priority, and Express Mail that American Express Serve doesn't offer. Whether you prefer your iPhone or a desktop browser, you can handle the full flow quickly, securely, and without any hassle.
Disclaimer: this page is an independent guide by Check Supply and is not affiliated with American Express Serve.
Zelle at American Express Serve.
Zelle support for American Express Serve is still being reviewed
Zelle support for American Express Serve is not confirmed in the latest mapped dataset. Check American Express Serve's official site or the Zelle enrollment directory before relying on Zelle for this institution, or use Check Supply to send the payment by mailed check.
Use Check Supply to send payments that do not fit Zelle's availability or transaction limits.