
Cash Controls – Sea-Tac Parking Garage
January 2018 – August 2018
The Seattle-Tacoma International Airport (STIA) Parking Garage is owned and operated by the Port of
Seattle, a municipal corporation, organized under statutory authority of the State of Washington. The
garage is the largest parking facility in the region with more than 13,000 stalls. The garage offers General
parking and Terminal Direct parking. General parking is available on floors one through three and five
through eight. Terminal Direct parking is available on the fourth floor and provides direct access to the
main terminal via sky bridges at a slightly higher cost.
The toll booths are operated by 19 cashiers and 14 supervisors. Annually, the staff processes 2.1 million
public parking transactions, for which credit cards are most often used. As of August 15, 2018, the Port
collected parking cash receipts of $2 million. This represented about four percent of the total parking
receipts which were $54 million. The table below reflects the cash and credit card receipts for the current
and prior year:
PARKING RECEIPTS – SEA-TAC PARKING GARAGE
PERIOD CASH RECEIPTS CREDIT CARD RECEIPTS TOTAL PARKING RECEIPTS
2018 (January 1 – August 15) $2,036,311
$51,944,002
$53,980,313
2017 (January 1 – December 31) 3,311,769 77,862,735 81,174,504
TOTAL $5,348,080
$129,806,737
$135,154,817
*
Data Source: PeopleSoft Financials
The focus of this audit was on the cash handling procedures at the STIA Garage. Cash handling
encompasses the controls and processes to account for and safeguard monies received in cash or check.
It also includes the change funds that the cashiers use to make change for customers who pay with cash
as well as petty cash funds, which are used for disbursing cash for small incidental expenses/refunds. To
minimize the risk of theft and fraud, it is essential that controls are in place.
According to RCW 43.09.240; every public employee, whose duty is to collect or receive payments due or
for the use of the public, shall deposit such moneys collected or received once every 24 hours.
BACKGROUND