Do I need a notary for the Business and Occupation Quarterly Tax Return?

No. The return is signed without a notary, but the taxpayer certifies the information under penalties of perjury and signs and dates the form.

How do I submit the Issaquah tax return?

Mail it to the City of Issaquah Finance Department, file online at issaquahwa.gov/BandO, or use the City Hall payment drop box. Zero-tax returns may be emailed to BandO@issaquahwa.gov.

Do I file if no tax is due?

Yes. The instructions say to complete, sign, and return the form each reporting period, even if no tax is due.

What information does the return ask for?

It asks for business identification and address details, quarterly gross income, deductions, taxable amounts, tax due, and a signature. It also includes fields for a business sale or closure.

Issaquah, WA · King County

No notary required

Business and Occupation Quarterly Tax Return

Issaquah businesses use this return to report quarterly gross receipts, deductions, and Business and Occupation tax, including when no tax is due.

What this form is

Businesses complete this return for each reporting period to report gross receipts, deductions, taxable amounts, and any tax due. The instructions say every business must file a completed and signed return each period, even when no tax is due; tax is due when quarterly taxable income exceeds $25,000. The form also provides space to report a business sale, closure, or ownership change.

Who needs it

Businesses reporting a quarterly period to Issaquah must complete and return this form, including when no tax is 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 deliver it to the City Hall payment drop box. Zero-tax returns may be emailed to [email protected].

About notarization

This document is signed without a notary; the taxpayer certifies the return under penalties of perjury and signs and dates it.

How to submit this form

1
Download The Return
Download the Business and Occupation Quarterly Tax Return PDF.
2
Complete The Form
Enter business details and quarterly gross receipts, deductions, taxable amounts, and any tax due.
3
Add Business Change Details
If the business was sold or closed during the tax period, complete the ownership change or closure fields.
4
Sign And Submit
Sign and date the return, then mail it, file online, or deliver it to the City Hall payment drop box. Zero-tax returns may be emailed.

Frequently asked questions

Do I need a notary for the Business and Occupation Quarterly Tax Return?: No. The return is signed without a notary, but the taxpayer certifies the information under penalties of perjury and signs and dates the form.
How do I submit the Issaquah tax return?: Mail it to the City of Issaquah Finance Department, file online at issaquahwa.gov/BandO, or use the City Hall payment drop box. Zero-tax returns may be emailed to [email protected].
Do I file if no tax is due?: Yes. The instructions say to complete, sign, and return the form each reporting period, even if no tax is due.
What information does the return ask for?: It asks for business identification and address details, quarterly gross income, deductions, taxable amounts, tax due, and a signature. It also includes fields for a business sale or closure.

Need something notarized?

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