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Completed

NCT Number: NCT06146621

Targeting Access and Knowledge of Earned Income Tax Credit (EITC) Utilization and Policies

The earned income tax credit (EITC) is the largest United States poverty alleviation program, providing up to $6,600 for working families as a tax refund. Prior studies have shown the EITC's benefits for social outcomes and health. Effects are even more significant for single mothers and Black women. Despite these known benefits, 20%-33% of eligible individuals do not receive benefits, leaving $7 billion unclaimed annually. The Targeting Access and Knowledge of EITC Utilization and Policies (TAKE-UP) Study is a pilot randomized controlled trial that will develop and test the feasibility of several culturally tailored, scalable interventions to increase the take-up of the EITC among participants in the Special Supplemental Food Program for Women, Infants, and Children (WIC).

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Key information

Conditions

Mental Health Issue Food Security Well-Being

Age range

18 year–64 year

Sex eligibility

Female

Study type

Interventional

Phase

Not applicable

Primary location

California Special Supplemental Nutrition Program for Women, Infants, and Children (WIC)

Sacramento, California, 95834, United States

Who can participate

Healthy volunteers accepted: Yes

Only the study team can determine whether someone qualifies for participation.

Inclusion criteria

  • Enrolled in Special Supplemental Nutrition Program for Woman, Infants, and Children (WIC)
  • Eligible for but did not receive the Earned Income Tax Credit (EITC) in the prior tax year
  • At least one dependent under 18 years
  • Having earned income (including income of spouse, if applicable) for the current tax year within EITC eligibility thresholds based on marital status and number of dependents
  • English or Spanish-speaking
  • Living in California and not planning to move within the next year
  • Immigration status compatible with EITC eligibility
  • Access to a phone that receives text messages
  • Willing to share relevant fields from tax forms if filing taxes (e.g., adjusted gross income)
  • Willing to be randomized.

Treatment and study plan

Low-touch text messaging

Behavioral

To address families' lack of awareness of the Earned Income Tax Credit (EITC) and the ways they may benefit from filing taxes, one study arm will receive low-touch text messages. These act in part by increasing awareness of programs and eligibility rules and in part as reminders to overcome limited attention to filing. Study participants receiving this intervention will receive behavioral science-informed text messages in English or Spanish from WIC that inform them about the EITC throughout tax season (i.e., January-April) 2024. We will personalize message contents (e.g., EITC benefit size mentioned in message based on participant income, marital status, and number of dependents) due to suggestive evidence that a tailored, individualized text message has the potential to be effective

Personal tax filing support

Behavioral

Participants randomized to this intervention will be connected with a human assistor who will work with them to ensure they access resources to help them file taxes and apply for the EITC. The English- and Spanish-speaking assistors will be study team staff trained to provide personalized support to help families access resources for which they are eligible. The assistor will be available by text or phone to talk with people if they encounter barriers and will call to follow-up on a mutually agreed upon schedule.

Information about free tax-filing support

Behavioral

Basic information about where to find free tax filing support in their community will be provided to all participants by email once upon enrollment.

Financial assistance

Behavioral

Participants randomized to this intervention will receive a $100 cash incentive for tax filing, designed to offset the time, hassle, and resources spent on tax preparation and filing, as well as psychological frictions like inattention that prevent some people from filing. This will be provided to recipients as soon as they show proof of tax filing, to provide a more immediate reward relative to the delays in receiving a federal tax refund. We will test the feasibility of delivering this via gift card, check, or other modalities, in addition to evaluating the framing and incentive amount.

Other names: Cash incentive

Primary outcomes

  1. Number of participants who filed taxes

    Time frame: 0-12 months after intervention

    Determine whether participants filed taxes in the 2022 tax year

  2. Number of participants who received the EITC

    Time frame: 0-12 months after intervention

    Determine whether participants received the EITC in the 2022 tax year

Secondary outcomes

  1. Number of participants living with material hardship. Survey instrument: Housing Insecurity/Instability/Homelessness Questions from Social Interventions Research & Evaluation Network (SIREN) at University of California San Fransisco (UCSF)

    Time frame: 0-12 months after intervention

    Evaluate an individual's level of material hardship: whether participant can afford housing, medical care, utilities/if their housing has basic utilities like stove/refrigerator.

  2. Number of participants living with depressive symptoms. Survey Instrument: General Anxiety Disorder-7

    Time frame: 0-12 months after intervention

    Evaluate an individual's level of depressive symptoms with a 5 point scale for how often depressive symptoms were experienced. Lowest point on scale: none of time, highest point on scale: all of the time. Higher points on scale indicated higher levels of depressive symptoms.

  3. Number of participants living with food insecurity.

    Time frame: 0-12 months after intervention

    6-item United States Department of Agriculture (USDA) food security scale. Lowest point on scale: Never true, Highest Point on scale: Often true. Higher points on scale indicated higher levels of food insecurity.

  4. Number of hours spent tax filing

    Time frame: 0-12 months after intervention

    Amount of hours participant spent tax filing

  5. Number of participants living with anxiety/perceived stress. Survey Instrument: General Anxiety Disorder-7

    Time frame: 0-12 months after intervention

    Evaluate an individual's level of anxiety/perceived stress with a 5 point scale for how often anxiety/perceived stress was experienced. Lowest point on scale: none of time, highest point on scale: all of the time. Higher points on scale indicated higher levels of anxiety/perceived stress.

  6. Amount of money spent on tax filing

    Time frame: 0-12 months after intervention

    Dollar amount that participant spent on tax filing

Sponsors and collaborators

Lead sponsor

Harvard School of Public Health (HSPH)

Other

Collaborators

  • Blue Shield of California Foundation
  • Boston University
  • University of California Nutrition Policy Institute
  • University of California, Berkeley
  • University of California, Merced

Registry information

Acronym: TAKE-UP

Important dates

Study start
2024
Primary completion
2025
Study completion
2025
First posted
Nov 24, 2023
Registry last updated
Aug 19, 2025

OpenTrials presents study information sourced from ClinicalTrials.gov. The official registry record should be consulted for the latest information.

View the official ClinicalTrials.gov record (opens in a new tab)

This listing is for discovery and informational purposes only. It is not medical advice, does not guarantee that a study is recruiting, and does not determine eligibility. Contact the study team and a qualified healthcare professional when considering participation.

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