Stepped and Tiered Rent Demonstration (STRD)

Last registered on November 19, 2025

Pre-Trial

Trial Information

General Information

Title
Stepped and Tiered Rent Demonstration (STRD)
RCT ID
AEARCTR-0016986
Initial registration date
October 09, 2025

Initial registration date is when the trial was registered.

It corresponds to when the registration was submitted to the Registry to be reviewed for publication.

First published
October 13, 2025, 11:01 AM EDT

First published corresponds to when the trial was first made public on the Registry after being reviewed.

Last updated
November 19, 2025, 10:39 AM EST

Last updated is the most recent time when changes to the trial's registration were published.

Locations

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Primary Investigator

Affiliation
MDRC

Other Primary Investigator(s)

PI Affiliation
MDRC

Additional Trial Information

Status
On going
Start date
2021-05-01
End date
2029-09-29
Secondary IDs
Prior work
This trial does not extend or rely on any prior RCTs.
Abstract
As part of the U.S. Department of Housing and Urban Development’s (HUD) Moving to Work (MTO) expansion effort, 10 MTW housing agencies were selected to implement alternative rent policies designed to achieve several objectives: policy simplification; reduction in the public housing agency (PHA) administrative burden and costs; stronger financial incentives for tenants to work and make progress toward economic self-sufficiency; protecting families from hardship; and cost-effectiveness.

The Stepped and Tiered Rent Demonstration (STRD) is testing two new policies. In the tiered rent policy, families are placed in a rent tier based on their income bands at triennial recertifications, and any increases in household income during the three-year period in between do not lead to increases in rent until the next triennial recertification. In the stepped rent policy, the initial tenant rent share is set based on household income, but changes in tenant rent share in subsequent years are decoupled from income and increase by a fixed amount annually, unless eligible hardship circumstances are present. Triennial recertifications are conducted under the stepped rent model only to determine families’ continued eligibility for their HUD housing subsidy. Five PHAs implemented a tiered rent policy, and five implemented a stepped rent policy.

The evaluation of STRD is being conducted using a randomized controlled trial and will assess the policies’ effects on households’ labor market outcomes, outcomes related to families’ receipt of housing subsidies, receipt of other transfer benefits, PHAs’ administrative burden and costs, and other outcomes through the first three years of the six-year demonstration for all study households.
External Link(s)

Registration Citation

Citation
Castells, Nina and Cynthia Miller. 2025. "Stepped and Tiered Rent Demonstration (STRD)." AEA RCT Registry. November 19. https://doi.org/10.1257/rct.16986-1.1
Experimental Details

Interventions

Intervention(s)
Tiered Rent: Under HUD’s tiered rent model, households are grouped by income into tiers. Within each tier, families’ total tenant payments (TTPs) for rent and utilities are fixed, and income increases within a tier do not affect the household’s TTP. HUD has established tiers in $2,500 increments. Households with income between $0 and $2,499 are in the initial tier and pay a minimum $50 in rent. The number of tiers may vary by PHA, with the maximum tier going up to the PHA’s area median income. Households are assigned to a tier based on their gross income in the prior year (referred to as “retrospective income”). The model also substitutes triennial recertifications for the traditional annual income reviews. Thus, once assigned to a tier, households do not need to report income increases to the housing agency, and their TTP remains unchanged until their next triennial recertification, when they would be placed in an income-appropriate tier based on their new retrospective income at that time. See attached analysis plan for more detail.

Stepped Rent: Under this model, TTPs are increased annually by a fixed amount that is equal to two percent to four percent of Fair Market Rent (FMR) for the household’s bedroom size. PHAs choose the size of the rent increase, within the two percent to four percent range, and can modify it each year or keep it fixed for the period of the demonstration. After the household’s initial rent is established, each household’s income has no effect on their rent. (An exception is if the household experiences an income loss – or fails to increase their income to keep up with the rent increases – that leads to severe rent burden, in which case they can request a hardship exemption to temporarily lower its TTP.) Households’ TTP automatically increases by the fixed rent increase on an annual basis. Their rent increases by that fixed amount each year until their HAP reaches $0 in the HCV program or the household’s tenant rent reaches the flat rent in public housing. Because the stepped rent model culminates in zero subsidy after the final step, it represents a time-limited subsidy policy. How long it takes for a family to reach the final step depends on its initial step and any hardship remedy it receives. Triennial income reexaminations will be used only to verify continued eligibility for a HUD subsidy, but not to calculate households’ TTPs. If a household’s income at reexamination is high enough to affordably rent a unit at the FMR (based on HUD’s current income eligibility criteria), they will no longer be eligible for assistance. See attached analysis plan for more detail.

Intervention Start Date
2023-01-01
Intervention End Date
2029-09-29

Primary Outcomes

Primary Outcomes (end points)
Total earnings over follow-up period, total housing subsidy over follow-up period
Primary Outcomes (explanation)
Earnings will be constructed using UI wage records from the National Directory of New Hires; subsidy data will be constructed using HUD 50058 administrative records.

Secondary Outcomes

Secondary Outcomes (end points)
Yearly earnings, employment, SNAP receipt, hardship requests, and material hardship measures.
effects for subgroups.
Secondary Outcomes (explanation)
earnings, employment, SNAP receipt and hardship requests will come from administrative records data; material hardship and other measures will come from a 30-month follow-up survey.

Experimental Design

Experimental Design
The evaluation of stepped and tiered rents is being conducted using a randomized controlled trial. Between January 2023 and November 2024, approximately 15,000 households across the 10 participating PHAs were randomly assigned to one of two study groups within their PHA: the alternative rent policy group, which is subject to the alternative rent policy, and the control group, which is subject to the standard rent rules.
Experimental Design Details
Not available
Randomization Method
Computer algorithm
Randomization Unit
individual
Was the treatment clustered?
No

Experiment Characteristics

Sample size: planned number of clusters
12,000
Sample size: planned number of observations
11,800 households consented to participate in the study, 7,800 in tiered rent sites and 4,000 in stepped rent sites.
Sample size (or number of clusters) by treatment arms
in tiered rent sites: 3900 in treatment group 3900 in control group
in stepped rent sites: 2000 in treatment group, 2000 in control group
Minimum detectable effect size for main outcomes (accounting for sample design and clustering)
in tiered rent sites: $748 for annual earnings, $30 for housing subsidy in stepped rent sites: $1,044 for annual earnings, $43 for housing subsidy
IRB

Institutional Review Boards (IRBs)

IRB Name
MDRC
IRB Approval Date
2022-08-01
IRB Approval Number
N/A
Analysis Plan

Analysis Plan Documents

STRD Phase 2 DCAP 5-21-25.docx

MD5:

SHA1:

Uploaded At: November 19, 2025