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Doing Business with McKinney ISD

The McKinney ISD Purchasing Department encourages and welcomes all vendors to become an MISD vendor. Vendor participation is an extremely important aspect of the entire purchasing process. Prospective vendors are encouraged to register with the McKinney ISD e-Bidding System. Our intent is to identify vendors who desire to participate in the competitive bid or proposal process. This registration is not intended to add a vendor to an approved vendors list, but to make sure all those that desire to be a part of the process get sent the appropriate invitation to bid or propose. Vendor approval status is based upon the bid/proposal award per the purchasing guidelines.

E-Bidding Registration Process

Vendors who register via the eBid process will receive an automated email notification when a bid/proposal opportunity becomes available. It is important to review the list of commodities and/or services and clearly mark all items supplied by your company during the registration process. There is no fee for utilizing the online bidding system. Each vendor will be responsible for maintaining their company’s current information on the district’s e-bidding site. All bids must be received prior to the due date and time or they will be considered non-responsive. Electronic submission is preferred. Bids received after the due date/time will not be accepted.

Register with McKinney ISD by clicking here:

Award Notifications

Award notifications are sent to successful vendors after Board approval, usually the fourth Tuesday of each month. Notification of award does not guarantee, nor initiate a purchase. Please maintain and reference your bid number when conducting business with the District. Additional information regarding bids/proposals may be obtained by contacting the Purchasing Department via email at [email protected] or by phone at 469-302-4009.

Purchase Orders

Purchases will be made with an authorized McKinney ISD purchase order. The purchase order specifies what the District is committing to and ensures that funds are set aside to pay for such commitments. Vendors must assume responsibility for any items/services that are purchased without an authorized McKinney ISD purchase order. Do not provide goods/services without a Purchase Order.


By law the school district has 30 days after receipt of an invoice to present payment.  It is the intent of the school district to pay all invoices as promptly as possible; however, by acceptance of an McKinney ISD purchase order you have agreed to the 30 day payment policy.  All invoices are submitted to the McKinney ISD Accounts Payable Department. Invoicing instructions are listed on all purchase orders and below:

  • Each invoice will reference the correct McKinney ISD Purchase Order Number and be itemized.
  • There must be a separate invoice for each Purchase Order.
  • Invoices will be accepted only for services/products that have been delivered and received.
  • Suppliers should keep McKinney Independent School District Purchasing Department advised of any changes in remittance addresses.

McKinney Independent School District is exempt from all applicable Federal and State Taxes. Tax-exempt information will be furnished upon request.

Vendor Information

To all vendors, it is very important that you make McKinney ISD Purchasing Department aware of any changes in your vendor information. This information can be communicated by contacting the Purchasing Department via email at [email protected]. This process will allow us to update your vendor file so that all purchase orders and payments are issued correctly.

McKinney ISD is not responsible for updating vendor profiles in the e-bidding system (IonWave). If you have any questions regarding vendors, please contact the Purchasing Department at [email protected] or 469-302-4009.

State Competitive Bid Law

McKinney ISD, as well as other school districts in the State of Texas, is governed by the state competitive bid law provided below. For more information about this law, please click here.

Bid/Proposal/Quote Guidelines

  • $0 to $10,000 – Phone or written quotes
  • $10,000 to $50,000 – Formal price quotes
  • $50,000 and over – Formal bid or proposal – requires Board approval

Need Help?

If you need additional assistance with the content on this page, please contact McKinney ISD team member Laura Duree by phone at 469-302-4011 or by email here .