CAS 101

Frequently Asked Questions (FAQs) 

1. What is the Card Acquiring Service?

a. Card Acquiring Service (CAS) is a Fiscal Service federal program that 

provides federal agencies payment card acceptance capabilities.

2. What services does the CAS program provide?

a. CAS provides merchant services for credit, debit, electronic benefit 

transfer (EBT) and stored-value (e.g. gift, etc.) cards for federal 

partner agencies.

3. Are all agencies required to use the CAS Program?

a. Most federal agencies that accept credit or debit cards for payment 

MUST use CAS. Only groups with authority to process credit and 

debit cards on their own (Non-Appropriated Funded Agencies) do 

not participate in CAS, including the U.S. Postal Service, Army/Air 

Force Exchange Service, Navy Exchange, and the Smithsonian.

4. What is the dollar limit for card transactions for the CAS program?

a. There are different limits contingent upon the card type. 

i. For credit card, the maximum a Federal Agency may collect 

in a single transaction is $24,999.99. 

ii. For debit card, there is no limit.

iii. For government cards, the maximum a Federal Agency may 

collect in a single transaction is $9,999.99.

1. Note: Federal-to-Federal transactions are called 

intra-governmental transactions. Federal agencies 

are responsible for all interchange and transaction 

fees associated with these types of payments. 

5. How can I enroll in the CAS program?

a. All agencies interested in establishing a card services account can 

complete a CAS Application and work directly with CAS program 

staff, if assistance is needed for the following:

• Traditional Stand-alone Terminals

• Value Added Resellers

• Integrated Software Vendors, or

• Mobile Applications and Devices

Agencies that want to establish a new account and/or add 

locations to an existing account for card processing through 

Pay.gov, need to contact their organization’s Pay.gov 

Implementation Specialist to submit applications for consideration. 

If you do not know your Implementation Specialist, please send an 

inquiry to: Pay.gov@fiscal.treasury.gov.
CAS 101

Frequently Asked Questions (FAQs) cont.

6. How long does it take to establish a card servicing account?

a. Establishing a card servicing account can take up to 2 weeks. 

• Fiscal Service CAS Process – CAS retrieves, processes and 

approves all properly submitted CAS Applications. The 

current processing time for Fiscal Service CAS approval is 

one business week (i.e. 5 business days).

• Worldpay Process – Worldpay is responsible for the creation 

of CAS accounts. The current processing time for account 

creation is 7 business days. 

7. Where do I retrieve my agency’s data for settled card servicing transactions?

a. Transaction data for card servicing transactions can be found in the 

Collections Information Repository (CIR) or through the CAS 

Merchant Processor’s iQ portal.

8. Who do I contact if I need help?

a. If you have an inquiry/request related to:

• Terminal Support

• Reconciliation and Reporting

• Billing Inquiries

• Ordering Equipment or Supplies 

• General Support Needs

Please contact the WorldPay Federal Agency Support Line: 1-866-

914-0558 (Hours: 24/7). 

b. If your inquiry/request is not in reference to any of the 

aforementioned categories, contact the CAS Outreach Mailbox at 

CardAcquiringService@fiscal.treasury.gov.