Accounts Payable

Doing Business with the City of Issaquah

Accounts Payable

The accounts payable function is responsible for issuing payment for all city bills. The City of Issaquah is committed to the timely and accurate processing of all vendor payments.

Vendor Requirements

As required by the Internal Revenue Service all vendors must have a current form W-9 (PDF) on file with the city. The form must be filled out completely and mailed to the above address. Failure to comply may result in backup withholding or payment of invoices to be delayed until the W-9 (PDF) is returned.

A completed City of Issaquah W-9 form (PDF) is also available for those companies making payments to the City.

ACH / EFT Payment Enrollment

The city now offers vendor payments by electronic funds transfer (EFT). Please contact for enrollment instructions. 

Lost Check

The city mails its payments via the United States Postal Service. If a city issued check is lost or missing, a duplicate check can be issued by having an affidavit filed with the city. 

Please complete the Affidavit Form (PDF), and return it to the following address:

City of Issaquah
 Attn: Accounts Payable
 P.O. Box 1307
 Issaquah, WA 98027-1307

Or by email at

Once complete and receive at our office, a new check will be issued.