Startup idea: Tenant Screening That Looks Beyond Debt-to-Income
An applicant earns $65,000 (enough on paper) but has $55,000+ in delinquent debt and a 561 credit score. The '30% of income' rule doesn't capture real risk.
Get the PRD prompt, $9.99 Market: $320K in 3 years
r/realestateinvesting · Sep 14, 2026 – Oct 14, 2026 · 22 upvotes
Tenant applicant has debt but her salary is more…
Read the thread · 100 comments
Tenant Screening That Looks Beyond Debt-to-Income is a startup idea for landlords and property managers. An applicant earns $65,000 (enough on paper) but has $55,000+ in delinquent debt and a 561 credit score. The '30% of income' rule doesn't capture real risk. A thread in r/realestateinvesting drew 22 upvotes and 100 comments between Sep 14, 2026 – Oct 14, 2026. People get by with TransUnion SmartMove, RentPrep, and Zillow screening, and that still leaves this job open. Hotness is 3.25, Warm. Real but moderate pain. Clear willingness to pay. The thread drew 22 upvotes and 100 comments. Crowded with decent tools. A few weeks of work. A first version is a moderate amount of work, about 3–4 weeks, priced between $10 and $49 a month and charged as a fee on each transaction. The pain, the source, the alternatives, the scope notes, and the questions on this page are free to read and free to build from. The agent starter prompt is the paid part. The first slice is on the page. One credit unlocks the rest, to paste into a coding agent, download as Markdown, or send as a private link.
Who has it
Landlords and property managers.
- Landlords
- Property managers
- B2B
- United States
- r/realestateinvesting
What people use now
3 options, and the gap between them.
TransUnion SmartMove
RentPrep
Zillow screening
Crowded with decent tools.
Tenant Screening That Looks Beyond Debt-to-Income is built for the part these leave undone.
A way through
A tenant scoring tool for small landlords combining income, debt load, employment stability and references into one more accurate risk score than DTI or credit alone.
MVP scope
The first version, in 4 weeks.
- 00 Goal
The one job
One risk score combining income, debt load, job stability and references for small landlords.
- 01 Week 1
The core
Combine income, debt load, employment stability, and references.
- 02 Week 2
The follow-through
Produce one risk score that is more accurate than DTI or credit alone.
- 03 Weeks 3–4
How it ships
As a web app that opens in any browser, with nothing to install. AI helps, but the core job works without it.
- — Not in v1
Left out on purpose
Replacing TransUnion SmartMove. Version one does the one job above and stops there.
How it could charge
The business model, at a glance.
- Model
- Transaction fee
- Price
- $10–49 a month
- Buyer
- CompaniesA business with a budget pays
- Region
- United States
Hotness
Why it scores 3.25.
Real but moderate pain. Clear willingness to pay. The thread drew 22 upvotes and 100 comments. Crowded with decent tools. A few weeks of work.
22 upvotes 100 comments r/realestateinvesting Sep 14, 2026 – Oct 14, 2026 verified Oct 14, 2026 Thread ↗
Weights: pain 25%, willingness to pay 20%, demand 20%, gap 15%, ease 10%, recency 10%. Recency is recomputed every build. The source report’s 1–10 score is not shown.
Market size · estimate
How big this could get
A bottom-up estimate for Tenant Screening That Looks Beyond Debt-to-Income: real customer counts × a realistic price. Not a forecast.
$160M a year
4M screenings · 30% of US rental properties owned by individual landlords
$32M a year
800,000 screenings · independent landlords online
$320K a year
8,000 screenings · 1% of the reachable segment in three years
What that means
8,000 screenings a year × ~$40 = $320K a year in revenue
Medium confidenceHow we estimated this
- Base: 13,500,000 US rental properties owned by individual landlords.
- Has the problem: 30% (assume 30% of properties turn over in a year).
- Revenue per screening: $40 per year ($40 per screening).
- Reachable: 20% (independent landlords online).
- Three-year capture: 1% of the reachable segment.
TAM = customers with the problem × revenue per customer. SAM = the part an early product can reach. SOM = a conservative three-year share of SAM. Bars use a log scale. Shares marked “assume” are our judgment, not measured.
Source: Census/HUD Rental Housing Finance Survey 2021: 70.2% of 19.3M properties
Take it to a build
Build Tenant Screening That Looks Beyond Debt-to-Income with an agent, or with us.
Agent starter prompt
$9.99 / 1 credit
A full PRD written for a coding agent: scope, data model, screens, edge cases, and the first week of tasks for this idea.
- Copy it straight into Claude Code, Cursor, or Codex.
- Download it as a .md file you keep.
- Send your bot a private link that refreshes every seven days.
# Agent starter prompt: Tenant Screening That Looks Beyond Debt-to-Income You are a senior product engineer. Build only the product described in this document. If a detail is missing, choose the smallest option and write it down in the README. Do not invent a second product, a marketplace of marketplaces, or a growth hack. ## Product Name: Tenant Screening That Looks Beyond Debt-to-Income One line: One risk score combining income, debt load, job stability and references for small landlords. Shape: Web app AI stance: AI-assisted Region for v1: United States Hotness (context only, not a requirement): 3.25 (warm). Real but moderate pain; clear willingness to pay; thread engagement 22▲/100💬 (demand 3/5); crowded with decent tools; a few weeks of work. ## Problem An applicant earns $65,000 (enough on paper) but has $55,000+ in delinquent debt and a 561 credit score. The '30% of income' rule doesn't capture real risk. Who feels it: Landlords and property managers.
The first slice is above. The rest unlocks for 1 credit and is never in this page’s HTML.
Credits work on both sites. On Business Ideas to Build the same credit unlocks the business plan and growth playbook for Tenant Screening That Looks Beyond Debt-to-Income.
Or we build it
Your first version, shipped by our team.
A working product in your repo, built from this PRD. You own the code.
$1,000 scoping fee, credited toward the build.
Equity instead of cash is an application, not a checkout →Questions
Is this idea already taken?
People already use TransUnion SmartMove, RentPrep, Zillow screening. Those options do not do the job in the solution above. The idea is free to build. Nothing here is an exclusive claim.
How hard is a first version?
Moderate. A tight MVP is about 4 weeks (3–4 weeks), assuming the regulated or partner-gated parts are stubbed. The paid prompt turns that into tasks.
Who would pay, and how?
The audience is landlords and property managers. Charge a fee on each transaction, and test a price between $10 and $49 a month. Willingness to pay is one input to Hotness, not a promise that someone will buy.
Can I use the evidence?
Yes. Build the product. The thread title is a short excerpt with a link, not a quote we are putting in someone's mouth. Exact post dates and verbatim lines are added only after a manual check. Ideas are suggestions, not medical, legal, or financial advice.
If you want the operating plan rather than the build document, it lives on the sister site. See the growth playbook