Changes to Utility Tax Payment Due Dates for Telephone and Cellular Businesses

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Tax Filing Due Dates
Quarterly Filer: Gross Income > $20,000/month
Billing Period
Tax Return Due
Q1: Jan. 1 – March 31 April 30
Q2: April 1 June 30 July 31
Q3: July 1 – Sept. 30 Oct. 31
Q4: Oct. 1 – Dec. 31 Jan. 31 of the following year
Annual Filer: Gross Income $20,000/month
Billing Period
Tax Return Due*
Jan. 1 - Dec. 31Jan. 31 of the following year*

*Tax return must be filed by Jan. 31 of the following year; however, payment is not required until April 30.

Effective Date: Jan. 1, 2026

Applicable to:

  • Telephone businesses

  • Competitive telephone services

  • Cellular telephone services


Beginning Jan. 1, 2026, telephone and cellular businesses will file utility tax payments with the City of Redmond on a quarterly or annual basis, rather than monthly, depending on their gross income.

  • Businesses with a monthly gross income of $20,000 or less will file annually.

  • Businesses with a monthly gross income of more than $20,000 will file quarterly.

  • A monthly filing option will remain available for businesses that prefer to submit payments more frequently; however, quarterly or annual filing is now the standard.

This change is intended to streamline the filing process and reduce administrative burden for both taxpayers and the City. The updated Utility Tax Form will be published in January 2026 and can be accessed at redmond.gov/992.


Tax Filing Due Dates
Quarterly Filer: Gross Income > $20,000/month
Billing Period
Tax Return Due
Q1: Jan. 1 – March 31 April 30
Q2: April 1 June 30 July 31
Q3: July 1 – Sept. 30 Oct. 31
Q4: Oct. 1 – Dec. 31 Jan. 31 of the following year
Annual Filer: Gross Income $20,000/month
Billing Period
Tax Return Due*
Jan. 1 - Dec. 31Jan. 31 of the following year*

*Tax return must be filed by Jan. 31 of the following year; however, payment is not required until April 30.

Effective Date: Jan. 1, 2026

Applicable to:

  • Telephone businesses

  • Competitive telephone services

  • Cellular telephone services


Beginning Jan. 1, 2026, telephone and cellular businesses will file utility tax payments with the City of Redmond on a quarterly or annual basis, rather than monthly, depending on their gross income.

  • Businesses with a monthly gross income of $20,000 or less will file annually.

  • Businesses with a monthly gross income of more than $20,000 will file quarterly.

  • A monthly filing option will remain available for businesses that prefer to submit payments more frequently; however, quarterly or annual filing is now the standard.

This change is intended to streamline the filing process and reduce administrative burden for both taxpayers and the City. The updated Utility Tax Form will be published in January 2026 and can be accessed at redmond.gov/992.

Page last updated: 13 Nov 2025, 02:08 PM