How do I submit the Business and Occupation Annual Tax Return?

Mail it to the City of Issaquah Finance Department, file online at issaquahwa.gov/BandO, or use the payment drop box at City Hall, 130 E Sunset Way.

Who must file this Issaquah tax return?

All businesses must submit a return, even if no tax is due. The form says tax is due when annual taxable income exceeds $100,000.

What information does the return ask for?

It asks for business identification and address details, gross income, deductions, taxable amounts by business classification, tax due, and an owner or representative’s signature.

Issaquah, WA · King County

No notary required

Business and Occupation Annual Tax Return

Issaquah businesses use this annual tax return to report gross receipts, deductions, taxable income, and any business and occupation tax due.

What this form is

All businesses must file this return for the January–December tax period, even if no tax is due. Tax is due when annual taxable income exceeds $100,000. The form asks for business identification and address details, tax-year figures by business classification, deductions, payment information, and a signed certification; it also requests closure or ownership-change details when applicable.

Who needs it

Every business required to file an Issaquah business and occupation tax return must complete and submit this form, including businesses with no tax due.

How to submit it

Mail the completed return to the City of Issaquah Finance Department, P.O. Box 1307, Issaquah, WA 98027; file online at issaquahwa.gov/BandO; or use the City Hall payment drop box at 130 E Sunset Way. Make checks payable to City of Issaquah.

About notarization

This return is signed and dated without a notary; the taxpayer certifies the information under penalties of perjury, and no notarized attachment is identified.

How to submit this form

1
Download The Return
Download the Business and Occupation Annual Tax Return for Issaquah.
2
Complete The Form
Enter business details, tax-year figures, deductions, and any closure or ownership-change information that applies.
3
Review And Sign
Calculate the tax due, review the return, and have the owner or representative sign and date it.
4
Submit To The City
Mail the return, file online at issaquahwa.gov/BandO, or use the City Hall payment drop box.

Frequently asked questions

Do I need a notary for the Business and Occupation Annual Tax Return?: No. The return is signed and dated without a notary. The taxpayer certifies the information under penalties of perjury; no notarized attachment is identified.
How do I submit the Business and Occupation Annual Tax Return?: Mail it to the City of Issaquah Finance Department, file online at issaquahwa.gov/BandO, or use the payment drop box at City Hall, 130 E Sunset Way.
Who must file this Issaquah tax return?: All businesses must submit a return, even if no tax is due. The form says tax is due when annual taxable income exceeds $100,000.
What information does the return ask for?: It asks for business identification and address details, gross income, deductions, taxable amounts by business classification, tax due, and an owner or representative’s signature.

Need something notarized?

This Business and Occupation Annual Tax Return doesn’t need a notary — but if you have another Issaquah form that does, a commissioned online notary can help.