How to send a check with Flatirons Bank.
A guide to mailing a real paper check from your Flatirons Bankaccount — with premium options like Certified, Priority, and Express Mail that your bank doesn't offer.
Flatirons Bank bill pay vs. Check Supply.
See how Check Supply compares with Flatirons Bank'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 | Flatirons Bank 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 |
Flatirons Bank
Flatirons Bank is supported by Check Supply for secure check mailing with premium delivery options.
Mailing a check from Flatirons Bank in under four minutes.
With Check Supply, you get access to premium mail options like Certified, Priority, and Express Mail that Flatirons Bank 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 Flatirons Bank.
Zelle at Flatirons Bank.
Zelle support for Flatirons Bank is still being reviewed
Zelle support for Flatirons Bank is not confirmed in the latest mapped dataset. Check Flatirons Bank'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.