Kevin L. Michel · FY2027 rent research

Same budget.
Different rent estimate.
Different answer.

A rent estimate for a whole housing area can tell a different story from an estimate for one ZIP. This study measures how often that changes a simple rental-budget check.

Published · Zenodo DOI

One income. One rule. Two estimates.

$100,000annual household income before taxes
Allow 35% for gross rent$2,916.67 / month
HUD area estimate$2,729Passes
ZIP 11103 estimate$3,310Fails

One bedroom · New York, NY HUD Metro FMR Area
35% is a sensitivity assumption, not a recommended budget.

Start with the idea

Change the rent number.
Keep the household the same.

Imagine checking whether a rent estimate fits a household’s budget. You choose an annual income, set the share allowed for rent, and divide by 12. An estimate at or below that monthly limit passes the screen. Anything higher fails.

Annual income×Rent share÷12 months=Monthly limit

The paper applies the same rule to two HUD measures of gross rent. Gross rent includes relevant tenant-paid utilities, so those same utility costs should not be added again.

01

The area estimate FMR

One bedroom-specific rent estimate for the official HUD housing area. These areas can cross city, county, and state boundaries.

02

The local estimate SAFMR

A bedroom-specific estimate for a ZIP within a HUD area. A ZIP code alone is not always enough to identify the right record.

These are HUD estimates used for housing policy. They are not advertised apartments, and they do not guarantee a home is available at that price. Passing this one rule does not establish overall affordability.

The headline finding

The disagreement runs both ways.

One bedroom. A hypothetical $100,000 household income. A 30% rent share. The monthly limit is $2,500 in both examples.

Area fails · some local estimates pass

Boston

61.39%

159 / 259 local benchmark records give a different answer.

Area estimate: $2,518 · Fails

The area estimate sits just above the budget. Many local estimates are low enough to pass.

Boston-Cambridge-Quincy, MA-NH HUD Metro FMR Area

Area passes · some local estimates fail

Seattle

20.26%

31 / 153 local benchmark records give a different answer.

Area estimate: $2,180 · Passes

The area estimate is below the budget. Some local estimates are too high to pass.

Seattle-Bellevue, WA HUD Metro FMR Area

Counts are unweighted ZIP-area benchmark records, not homes or people. Each percentage uses that market’s own denominator. Short city names label the official HUD areas shown above.

Explore all eight markets

When does the rent number change the answer?

Choose a hypothetical household income, unit size, and rent limit. Each market shows how often its area estimate and local ZIP-level estimates give different pass/fail answers.

Gross income, before taxes
Studios and one bedroom are primary
35% and 40% test alternative assumptions
Monthly gross-rent limit$2,500.00

$100,000 × 30% ÷ 12 months
Primary scenario: one bedroom, 30% rent share.

An estimate passes when it is at or below the limit. Gross rent includes relevant tenant-paid utilities. Passing this one rule does not establish overall affordability.

  • Both pass
  • Area fails · local passes
  • Area passes · local fails
  • Both fail

New York

410 records
Area rent estimate $2,729/monthFails
Area fails → local passes
61/410 (14.88%)
Area passes → local fails
0/410 (0.00%)
Both pass
0/410 (0.00%)
Both fail
349/410 (85.12%)
Which HUD area?

New York, NY HUD Metro FMR Area

METRO35620MM5600

Atlanta

299 records
Area rent estimate $1,619/monthPasses
Area fails → local passes
0/299 (0.00%)
Area passes → local fails
0/299 (0.00%)
Both pass
299/299 (100.00%)
Both fail
0/299 (0.00%)
Which HUD area?

Atlanta-Sandy Springs-Roswell, GA HUD Metro FMR Area

METRO12060M12060

Boston

259 records
Area rent estimate $2,518/monthFails
Area fails → local passes
159/259 (61.39%)
Area passes → local fails
0/259 (0.00%)
Both pass
0/259 (0.00%)
Both fail
100/259 (38.61%)
Which HUD area?

Boston-Cambridge-Quincy, MA-NH HUD Metro FMR Area

METRO14460MM1120

Chicago

370 records
Area rent estimate $1,780/monthPasses
Area fails → local passes
0/370 (0.00%)
Area passes → local fails
35/370 (9.46%)
Both pass
335/370 (90.54%)
Both fail
0/370 (0.00%)
Which HUD area?

Chicago-Joliet-Naperville, IL HUD Metro FMR Area

METRO16980M16980

Washington

488 records
Area rent estimate $2,204/monthPasses
Area fails → local passes
0/488 (0.00%)
Area passes → local fails
96/488 (19.67%)
Both pass
392/488 (80.33%)
Both fail
0/488 (0.00%)
Which HUD area?

Washington-Arlington-Alexandria, DC-VA-MD HUD Metro FMR Area

METRO47900M47900

Seattle

153 records
Area rent estimate $2,180/monthPasses
Area fails → local passes
0/153 (0.00%)
Area passes → local fails
31/153 (20.26%)
Both pass
122/153 (79.74%)
Both fail
0/153 (0.00%)
Which HUD area?

Seattle-Bellevue, WA HUD Metro FMR Area

METRO42660MM7600

Philadelphia

473 records
Area rent estimate $1,558/monthPasses
Area fails → local passes
0/473 (0.00%)
Area passes → local fails
0/473 (0.00%)
Both pass
473/473 (100.00%)
Both fail
0/473 (0.00%)
Which HUD area?

Philadelphia-Camden-Wilmington, PA-NJ-DE-MD MSA

METRO37980M37980

Raleigh

86 records
Area rent estimate $1,552/monthPasses
Area fails → local passes
0/86 (0.00%)
Area passes → local fails
0/86 (0.00%)
Both pass
86/86 (100.00%)
Both fail
0/86 (0.00%)
Which HUD area?

Raleigh-Cary, NC MSA

METRO39580M39580
Exact equality cases and the full count table

An estimate exactly equal to the unrounded budget limit passes. The table counts local equality cases separately; those records are already included in the passing outcomes above.

One bedroom · $100,000 annual gross household income · 30% rent share. Each fraction uses the market’s ZIP-area record count.
HUD marketBoth passArea fails,
local passes
Area passes,
local fails
Both failLocal equals
budget
Area equals
budget?
New York0/410 (0.00%)61/410 (14.88%)0/410 (0.00%)349/410 (85.12%)4/410 (0.98%)No
Atlanta299/299 (100.00%)0/299 (0.00%)0/299 (0.00%)0/299 (0.00%)0/299 (0.00%)No
Boston0/259 (0.00%)159/259 (61.39%)0/259 (0.00%)100/259 (38.61%)1/259 (0.39%)No
Chicago335/370 (90.54%)0/370 (0.00%)35/370 (9.46%)0/370 (0.00%)0/370 (0.00%)No
Washington392/488 (80.33%)0/488 (0.00%)96/488 (19.67%)0/488 (0.00%)13/488 (2.66%)No
Seattle122/153 (79.74%)0/153 (0.00%)31/153 (20.26%)0/153 (0.00%)0/153 (0.00%)No
Philadelphia473/473 (100.00%)0/473 (0.00%)0/473 (0.00%)0/473 (0.00%)0/473 (0.00%)No
Raleigh86/86 (100.00%)0/86 (0.00%)0/86 (0.00%)0/86 (0.00%)0/86 (0.00%)No

Counts describe unweighted ZIP-area benchmark records, not available homes or people. City labels stand for the full HUD areas shown in each card. Budget amounts are displayed to two decimal places; classifications use unrounded calculations. Source: the paper’s archived FY2027 schedules and replication data.

A closer look · ZIP 11103

The rents stay fixed.
The rule changes.

For a one-bedroom unit in the New York HUD area, the local estimate is $581 a month higher than the area estimate, or $6,972 a year. Keep household income at $100,000 and try the three rent shares.

Share of gross income allowed for rent

Monthly limit $2,916.67Display rounded to cents; pass/fail uses the unrounded limit.

Area FMR$2,729Passes
ZIP 11103 SAFMR$3,310Fails

At 35%, the area estimate passes and the ZIP estimate fails.

The gold marker is the monthly budget limit. The bars are monthly HUD gross-rent estimates, not apartment listings. An estimate exactly at the limit passes.

Go deeper

Three views from the paper.

The original figures show the spread of local estimates, differences in screening results, and changes between the two HUD schedules. Open each chart to see the full detail.

Figure 1 · The spread within each marketHow far apart are the rent estimates?
Distribution of local-minus-area monthly rent gaps in the eight HUD areas, separately for studios and one-bedroom units.
Left of zero means the local estimate is lower than the area estimate; right means it is higher. The box holds the middle half of records, and the lines extend to the full range. Open full-size chart ↗
Figure 2 · Income and bedroom sensitivityWhen does the answer change?
Reversal counts and percentages by market and income at a 30 percent rent share, for studios and one-bedroom units. The explorer above provides exact counts.
Each cell counts records where the two estimates give different answers under the 30% rule. The direction matters: an area pass can become a local fail, or an area fail can become a local pass. Zero can mean both pass or both fail. Open full-size chart ↗
Figure 3 · Revised FY2026 to FY2027What changed between the schedules?
Changes between revised FY2026 and published FY2027 benchmarks in each HUD market, comparing area estimates with the distribution of local changes.
These are changes in published benchmarks, not observed rent inflation. HUD also changed its utility-estimation method for FY2027. Only records present in both schedules are compared. Open full-size chart ↗

Why the source handling matters

The answer should be traceable.

The contribution is an updated, reproducible audit of a screening decision. Earlier research already established that rent geography matters. This paper makes the assumptions and source handling visible across eight job-relevant markets.

01 / Keep the snapshot

Same files, known versions.

The analysis preserves the September 28, 2026 snapshot. The paper records official source URLs, checksums, and the original source-status check. Publishing this guide does not update those schedules.

02 / Match the right record

A ZIP is not a unique key.

The analysis identifies a record using ZIP + HUD area + year + bedroom size. It checks county and town rows before joining local estimates to one area estimate.

03 / Repair only what is broken

Fix metadata, preserve rent cells.

One FY2026 workbook contained malformed internal dates. A derived copy repairs only that metadata; the other archive entries remain unchanged. No numeric cells were edited.

04 / Explain the boundaries

Benchmarks, not lived outcomes.

All 2,538 FY2027 ZIP-area records match the revised FY2026 sample. Its two extra records stay in an exceptions table. A separate 24-case audit checks documented source methods.

What this study can and cannot tell us

It describes how a stated rent-to-income rule responds to the choice of rent estimate. It does not estimate a policy’s causal effect, count available apartments, or predict what an individual household will actually pay.

Income is hypothetical gross household income before taxes. Food, childcare, transport, debt, and other costs are outside the study. The 35% and 40% rent shares are alternative assumptions, not financial recommendations.

The primary analysis covers studios and one-bedroom units at 30%. Two-bedroom units test bedroom sensitivity. Changes from revised FY2026 to FY2027 are benchmark changes, not observed inflation. HUD’s utility method also changed.

The 24 provenance cases were deliberately selected. Their method mix does not estimate how common each method is across all records. The full paper documents predecessors, the limited search for newer work, and remaining limitations.

Read it. Check it. Reproduce it.

The complete research,
open to everyone.

When a Metro Rent Number Changes the Answer: A FY2027 Audit of Rental-Budget Screening Across Eight U.S. Job Markets

Kevin L. Michel · September 29, 2026

The supplied publication files are preserved unchanged. No account is required.