How do Comcheks Work?

Working in the transportation industry you have surely heard of comcheks. But just starting out it may be a bit confusing to figure out how a comchek works and why companies use them. A comchek is a form of payment most frequently used by freight brokers to pay contract carriers, and they work in a similar way to a regular check but with some differences.

Express Codes

A payer (shipper or a broker) that has an account with Comdata, issues Comcheks to drivers for services rendered or as a fuel advance and they do so in a form of an express code for a predetermined amount. The express codes vary in length, usually from 14 to 18 digits in length, but will always be just numbers not letters.

Once the payee (trucking company) receives their express codes they have several options to redeem their money. Comcheks can be cashed at truck stops or any bank as long as Comchek blank is present.

Comchek Blank Instructions

Comchek Blank

When depositing directly into the bank, the payee must call the toll free phone number provided by Comdata to get authorization for that Express Code.  The payee cannot cash the Comchek until he has called Comdata to get an authorization number, not doing so will cause the check to bounce and cause you to incur insufficient funds fees by your bank. Once Comchek blank is filled out it can be used a regular check and even cashed with no fees. Talk to your bank for additional assistance processing Comcheks.

Comcheks can be cashed at truck stops when buying fuel, however some locations will charge a processing fee if you are not buying any fuel there. Look into GoComchek for locations that accept Comcheks.

Comdata Cards

Trucking companies can also look into making their own accounts with Comdata to issue Comcheks for their drivers. It provides a convenience and flexibility to monitor driver spending. With the Comdata account a trucking company has the option to issue cards to their drivers that work similarly to an ATM.


When compared to credit cards, transaction fees for comcheks are much lower. Depending on the account and volume fees may be as low as $4 per $1000. Comdata charges a flat fee from Comcheks and prices per $1000, meaning it costs the same issue a $20 Comchek as it would for $1000. It is not uncommon for some brokers to mark up the cost of Comcheks, most common being $10/$1000 but in some cases as high as $40 for a single Comchek.


Pro’s and Con’s of Comcheks:

  • Comcheks allow truck drivers freedom from carrying large amounts of cash on hand.
  • Comcheks enable to get payment faster and improve cash flow while on the road.
  • Comcheks usually have a processing fee. Fees increase with higher payment amounts.
  • Drivers can get a Comdata account and can deposit their payments into that account as well.

What are your thoughts on Comcheks?

4 replies
    • Alex Marinov
      Alex Marinov says:

      You can make a comchek if you are setup with Comdata. Or you can call (1-800-Comdata) and using a credit card get a comchek – but it is more expensive.

  1. joselyn anidite
    joselyn anidite says:

    When depositing a comdata check into a bank account thru the atm do I still have to call the number on the check to verify??

    • Alex Marinov
      Alex Marinov says:

      You always need to call COMDATA (800)-266-3282 to verify because their rep will provide you with an authorization code. Without the code the check will bounce.


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