TUMF

Transportation

Overview

The Transportation Uniform Mitigation Fee (TUMF) Program ensures that new development pays its fair share for the increased traffic that it creates.

TUMF Fee Clearance

WRCOG administers the Transportation Uniform Mitigation Fee (TUMF) Program to ensure that new development pays its fair share for the increased traffic that it creates. The TUMF Program will raise over $3 billion for transportation projects in Western Riverside County.

The TUMF is an obligation that must be met on all new development in Western Riverside County. For some developments, the developer is exempt from paying TUMF, but where the local agency has determined that TUMF is due, a developer will need to pay their TUMF fees. These fees vary based on the land use type of the proposed development and its size. These factors influence how traffic will be increased due to development. The TUMF fee goes toward providing improvements to improve local traffic.

If you are required to pay TUMF, you should begin by filling out an application. Payments are made directly to Western Riverside Council of Governments. If your development is in the City of Perris, or Unincorporated County, those local agencies will collect payment and there is no need to fill out an application. Visit WRCOG’s Online Services to fill out an application.

Once the application is processed by your local agency, you will be able to pay by any of the below methods. In-person payments are accepted Monday – Thursday, 8 a.m. – 5 p.m.

Pay via wire transfer or ACH
Pay via credit card after applying through our online portal
Pay by e-check after applying through hour online portal
Mailing a check via the U.S. Postal Service Priority or Overnight option – envelopes are delivered directly to our secured mailbox. Do not request a signature.
If delivering a check to WRCOG offices, please allow additional time for staff to process payments and issue a receipt.

Administration & Fees
Studies & Documents
TUMF Maps
Zone Tips
Facility Improvements
Revenue Collections
150 Projects & Counting

WRCOG is designated as the program administrator for the TUMF Program. As administrator, WRCOG receives all fees generated from the TUMF as collected by the local jurisdictions. WRCOG invests, accounts for, and expends the fee in accordance with the TUMF ordinance, the administrative plan and applicable state laws.

To submit a project and receive a TUMF obligation, please see the Fee Collection Policy for instructions and submit via our fee calculation and collection portal https://westernriversidecogca.viewpointcloud.com

Administration

WRCOG’s administrative duties are explained in detail in the TUMF Administrative Plan.

Fee Calculation

Effective April 1, 2025

Land Use Type	Units	TUMF Fee
Single-Family Residential (<1800 SF)	DU	$12,380
Single-Family Residential (1801-2300 SF)	DU	$13,927
Single-Family Residential (2301-2700 SF)	DU	$15,476
Single-Family Residential (2700+ SF)	DU	$19,344
Multi-Family Residential	DU	$7,816
Retail	SF	$7.72
Service	SF	$4.89
Industrial	SF	$2.33
Class A/B Office	SF	$2.45

TUMF Exemptions

The following documents are provided to assist in the calculation, application, and collection of TUMF Program fees.

Online TUMF Fee Estimator

The online fee calculator tool allows stakeholders to input project-specific information and receive fee obligation estimates for development projects. Click here to estimate TUMF fees. (Tool has been updated with the new April 1, 2025 rates.)

WRCOG prepares updates to the TUMF Program Nexus Study and other documents related to the TUMF Program. The Nexus Study Update was recently approved on September 9th, 2024 by the WRCOG Executive Committee. The Nexus Study Update includes a revised fee schedules that will go into effect no earlier than April 1, 2025.

Nexus Study Update 2024

Studies

2016 Nexus Study (PDF) and Appendices (PDF) – Adopted July 10, 2017
2009 Nexus Study (PDF) and Appendices (PDF)
2022 Fee Comparison Analysis
2018 Fee Comparison Analysis
2016 Fee Comparison Analysis
2023 Multi-Family Residential Trip Generation Study
2022 Single-Family Residential Trip Generation Study

Documents

Online TUMF Network Map

WRCOG develops and updates the Regional System of Highways and Arterials (RSHA) to identify the TUMF Network. The interactive TUMF Network provides member agencies and developers the opportunity to more easily determine whether its facilities are eligible for TUMF funding. This web map contains various filters to sort and display the TUMF Network by project type (interchanges, bridges, railroad grade separations), maximum TUMF share, and how much of a project has already been completed. Click here to access the TUMF Network interactive map.

Zone Transportation Improvement Program

A Transportation Improvement Program (TIP) is adopted for each of the TUMF Program Zones.

Live TIP

This page shows up-to-date information on projects on all zone TIPs with links to reimbursement payments, reimbursement agreements, and reimbursement agreement balances.

TUMF Project Search

Celebrating 150 TUMF Projects Across Western Riverside County

WRCOG is proud to celebrate a major milestone—150 completed transportation projects funded through the Transportation Uniform Mitigation Fee (TUMF) Program. For over two decades, TUMF has helped build safer roads, reduce traffic congestion, and support the region’s rapid growth. From freeway interchanges to local street improvements, these 150 projects reflect the power of regional collaboration and long-term planning. Join us as we spotlight the communities, partners, and infrastructure that are moving Western Riverside County forward.

See all of the TUMF Projects and the impact of each on Western Riverside County Communities.