Updated for 2026
Your 2026 business calendar.
Hours, invoice cutoff times, office closures and how to reach us, all in one place. Save this page and check back any time.
Business hours
Monday to Friday, 8am to 5pm Central Time (same as Chicago)
Next office closure
Thanksgiving Day, Thursday, November 26
Submit invoices
Online at cp.carriernet.com. Your login arrives by email when you sign up.
Invoice cutoff times.
Send your invoices by these times, Central Time, to be funded as expected. Invoices sent later are processed the next business day.
| Payment type | Send by |
|---|---|
ACH Next business day | 1:00pm |
Wire transfer Same day | 11:00am |
T-Check Same day | 1:00pm |
Invoice corrections ACH and T-Check | 3:00pm |
Invoice corrections Wire transfer | 2:00pm |
2026 office closures.
Our offices close on these days so our team can be with their families. Invoices sent on a closure day are processed the next business day.
- Jan19Martin Luther King Jr. DayMonday, January 19, 2026Passed
- Feb16Presidents DayMonday, February 16, 2026Passed
- May25Memorial DayMonday, May 25, 2026Passed
- Jun19JuneteenthFriday, June 19, 2026Passed
- Sep7Labor DayMonday, September 7, 2026Passed
- Oct12Columbus DayMonday, October 12, 2026Passed
- Nov11Veterans DayWednesday, November 11, 2026Passed
- Nov26Thanksgiving DayThursday, November 26, 2026Next closure
- Nov27The day after ThanksgivingFriday, November 27, 2026
- Dec25Christmas DayFriday, December 25, 2026
- Jan1New Year's Day 2027Friday, January 1, 2027
How to reach us.
Phone and fax
Phone: (605) 306-4111
Fax: (605) 335-6039
Mailing addresses
Billing, certified and overnight mail
520 W 10th Street
Sioux Falls, SD 57104
Standard mail
PO Box 1130
Sioux Falls, SD 57101
More questions? See our frequently asked questions →
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