MATSOL Payment Policies

Payment Methods

MATSOL accepts payment for most events by credit card (VISA or MC), check, or purchase order. Payments can be made out to "MATSOL."

Purchase Order Payment
  • A purchase order is considered a promise of payment in lieu of immediate payment by check or credit card. 
  • No internal requisition numbers in lieu of PO.
  • Please send POs with the required registration or membership forms.
  • MATSOL will create an invoice upon receipt of the purchase order and registration forms.  Please allow 1-2 weeks for processing.
  • “No-shows” and late cancellations must be paid in full.
Credit Card Payment
  • Visa and Mastercard are accepted. Credit card payments are processed through our secure online merchant service.
Check Payment
  • Make checks payable to "MATSOL"
  • If your check is returned for non-sufficient funds, you expressly authorize your account to be electronically debited or bank drafted for the amount of the check plus any applicable fees.The use of a check for payment is your acknowledgement and acceptance of this policy and its terms and conditions. See

Cancellation & Refund Policy

  • MATSOL memberships are not refundable.
  • See specific event registration information for cancellation dates.

Contact MATSOL

2 Canton Street, Suite B-223
Stoughton, MA 02072

Please note that the MATSOL office is only staffed part time, so email is the best way to reach us.

phone: 617-820-5099
fax: 617-395-2687

MATSOL W-9/Vendor Information
  • MATSOL EIN/Tax ID#: 4-3581597. 
  • Send an message to to obtain a W-9 form.
  • MATSOL is a 501(C)3 non-profit organization.