Payment due July 2, 2021 

All payment, including mailed checks, must be received by July 2, 2021. If we do not receive your payment by July 2, 2021 you will receive email and phone notification that payment must be received in order for our team to send you your session information. 

If you or your school need an extension, please email our team at and we will make sure you receive your session information.

Please note that our software will continue to send outstanding balance emails until we receive payment via credit card, check, or AHC payment. Unfortunately we do not count POs as payment. 

Fastest & Easiest Payment Option: Credit Card

Pay with a credit card at the end of your registration. We accept Visa, Mastercard, and Discover.

If you have already registered and selected "Pay with Check" but now need to pay online with a credit card:

  • Visit the registration page
  • Click "Already Registered?" in the top right-hand corner
  • Enter the email address used during registration
  • Enter your confirmation number (you can find your confirmation number by clicking on "To have the Confirmation Number sent to you, click this link: Confirmation Number")
  • Click on the "Unregister" button. If you paid via credit card, you will receive an automatic refund on that card. If you paid via check, or were planning to, please email and let us know you've cancelled so we can return your check.

Other Payment Options: Check, POs, College Board Scholarship

Paying by Check?

Please select "Check" during registration. Make checks out to "Colorado Education Initiative" and send to:

The Colorado Education Initiative
Attn: Accounts Payable
3000 Lawrence Street, Box 131
Denver, CO 80205

Paying by Scholarship?

The College Board currently offers the following scholarships: Fellows, Rural Fellows, and AP Capstone. During registration please indicate in the attached field which type of College Board Scholarship you have been awarded along with the award amount. Email your award email to

Submitting a PO?

Please select "Purchase Order" during registration. Please email POs to Please note that we do consider your registration paid until we receive payment (credit card, check, or proof of College Board Scholarship). A PO does not count as payment, though we recognize that many districts must submit a PO in order to issue a check. 

When you register, you will receive an automatic invoice email. The email subject will read “Invoice: 2021 Denver Advanced Placement for All Summer Institute” If you do not see this email in your inbox after completing your registration, first check your junk folder and add as a trusted sender. If you do not find the invoice in your junk folder, please contact our team at

Please email this invoice to your school or district contact that is in charge of submitting payment for PD events. Thank you!

Need a W-9 or invoice?

Please note that participants will receive an invoice link in their Confirmation Email after registering. If you need a copy of an invoice or our organization's W-9, please email

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