The Washington State Employees Credit Union is a mortgage from Washington State Employees Credit Union. The ongoing APR is 15/1 ARM 7.875% interest rate, 7.956% APR; 7/6 ARM 6.875% interest rate, 7.004% APR; 5/6 ARM 6.625% interest rate, 6.902% APR. Loan terms: 30-year terms with 5/6, 7/6, 10/6, and 15/1 options.