The Basic Machinery of Tax Collection Is Breaking Down
Summary
Four tax systems, read against their own documents, fail the same way. Kentucky's new tax software resurrected $568.8 million in debt the state had already written off as dead. Kansas's first audit of its property tax exemptions found $54 billion -- 15% of the entire base -- off the rolls, with $1.2 billion of it carrying no recorded reason. San Francisco has $281.6 billion in assessed value stuck in 14,652 unheard appeals, answered by an appraiser corps that grew three-quarters of one position. And the IRS lost about 30% of its workforce while the $696 billion federal tax gap held flat. In each case, the routine capacity to account for the tax base eroded faster than the base itself -- and the shortfall lands as revenue nobody collects.
Kentucky
A vendor conversion error moved decades-old debt -- some from 1962 -- back onto the books as current, past the state's 10-year collection statute, per the Auditor of Public Accounts⧉. The Department of Revenue refunded $33.7 million it double-charged 4,121 taxpayers⧉ in the same rollout, but disputes the "uncollectible" label, calling the balances "still valid" while conceding they "are not being actively collected."
Kansas
The audit could not sort the $54 billion into Kansas's seven exemption categories⧉ because county codes are too unreliable; about 4,800 properties worth $1.2 billion carry no code at all. The state's own exemption report has separately undercounted the total by $3.6 billion since an unfinished 2017 coding change.
View data as table
| Total appraised value, 2024 | $366 billion | |
|---|---|---|
| Taxable | $312 billion | 85% |
| Exempt | $54 billion | 15% |
San Francisco
California law⧉ gives the appeals board two years to rule, or the taxpayer's own value becomes the assessed value. Against 14,652 open appeals, the city's salary ordinance⧉ grew the appraiser corps by 0.72 -- about 212 open cases per appraiser. San Francisco has already reserved $431.0 million⧉ for refunds it expects to owe.
View data as table
| FY2024-25 | 68.28 FTE | classes 4261/4265/4267 |
|---|---|---|
| FY2025-26 | 69.00 FTE | +0.72 FTE, all one Principal Appraiser line |
The IRS
The Treasury Inspector General⧉ found 31,273 employees separated in the year to January 2026, a net 28% workforce decline. Underreporting -- the category audits catch -- is 77% of the $696 billion gap⧉; the gap held flat while the audit-dependent workforce fell by a third.
View data as table
| Underreporting | $539 billion | 77% of gross gap |
|---|---|---|
| Underpayment | $94 billion | 13% of gross gap |
| Nonfiling | $63 billion | 9% of gross gap |
| Gross tax gap | $696 billion | TY2022 |
- Four independent tax systems -- a software conversion, an exemption registry, an appeals office, and an enforcement workforce -- show one failure mode: the administrative capacity to track, assess, or collect the tax base has eroded faster than the base itself.
- The dollar figures are not comparable and are never summed here. Kentucky's $568.8 million is a revived paperwork balance; Kansas's $54 billion is 15% of its property base; San Francisco's $281.6 billion is disputed assessed value awaiting a ruling; the 's $696 billion is an annual estimate of tax owed and unpaid. Each is a different measure of value the system can no longer fully account for.
- The capacity side is measured in people, and it is flat or shrinking. The shed about 30% of its workforce -- 31,273 employees -- while the audit-dependent share of its tax gap ($539 billion, 77%) held; San Francisco added 0.72 of an appraiser against 14,652 open appeals.
- In each case an official promise is failing against its own ledger -- a 10-year write-off statute, a published exemption report, a two-year appeals deadline, an $80 billion enforcement commitment -- and the gap between promise and capacity lands as revenue nobody collects.
Synthesis of four separately verified BlackLeaf investigations. The four dollar figures are different units -- a revived receivable balance, a share of an appraised base, disputed assessed value, and an annual gross tax gap -- and are not added together. Each linked article carries the full document trail and its own verification record.
Sources(7) ▾
- Kentucky Auditor of Public Accounts, Report of the Statewide Single Audit of the Commonwealth of Kentucky, Volume I -- For the Year Ended June 30, 2025 (2026-03-23) — Kentucky's statewide financial audit for FY2025, Finding 2025-003, on processing failures in the Department of Revenue's new tax system (DORIS). Supplies the $568.8 million revived-receivables figure and the $33.7 million / 4,121-taxpayer double-charge. Blind-verified verbatim in the source article kentucky-doris-tax-system-errors-dollar. auditor.ky.gov · original document
- Kansas Legislative Division of Post Audit, Reviewing Tax-Exempt Real Property and Property Donated to Universities (Report R-26-001) (2026-01-01) — Kansas's first-ever legislative estimate of what real property tax exemptions cost the state: $54 billion (15%) of the base off the rolls, ~$1 billion/year forgone, and $1.2 billion of exempt property carrying no exemption code. Blind-verified verbatim in the source article kansas-property-tax-exemption-dollar, including a visual read of the Figure 4 chart labels. kslpa.gov · original document
- City and County of San Francisco, Office of the Controller, Six-Month Budget Status Report, FY2025-26 (2026-02-12) — San Francisco's mid-year budget report. Supplies the Assessment Appeals Board backlog ($281.6 billion in contested assessed value across 14,652 open appeals as of Jan. 29, 2026) and the accumulated $431.0 million refund reserve. Re-fetched and text-extracted directly from the Controller's PDF for this synthesis. media.api.sf.gov · original document
- City and County of San Francisco, Board of Supervisors, Annual Salary Ordinance (2-Year), Budget Years 2024-2025 and 2025-2026, Department ASR (Assessor/Recorder) (2024-07-30) — The Board of Supervisors' enacted two-year salary ordinance. Its budgeted- columns for real-property appraiser job classes 4261/4265/4267 give the appraisal corps: 68.28 in FY2024-25 rising to 69.00 in FY2025-26. Re-fetched and text-extracted directly from the ordinance PDF and the class-line columns summed independently for this synthesis. sfgov.legistar.com · original document
- California Legislative Information, California Revenue and Taxation Code Section 1604 (2016-01-01) — The two-year statutory deadline: if a county board fails to make a final determination on an assessment-reduction application within two years of filing, the applicant's own opinion of value becomes the value on which taxes are levied. Establishes why the San Francisco backlog is a countdown, not a static queue. Re-fetched for this synthesis. leginfo.legislature.ca.gov · original document
- Internal Revenue Service, The Tax Gap -- Tax Year 2022 Projections (2024-10-10) — The 's official tax-gap statistics for tax year 2022: a $696 billion gross gap, $606 billion net, 85.0% voluntary compliance, and the nonfiling/underreporting/underpayment split -- with underreporting, the audit-dependent category, at $539 billion. Re-fetched directly from irs.gov for this synthesis. irs.gov · original document
- Treasury Inspector General for Tax Administration, Snapshot Report: Status of the IRS's Workforce as of January 2026 (Report No. 2026-IE-R009) (2026-06-01) — 's count of attrition over the year to January 2026: 31,273 employees separated -- about 30% of the workforce, a net 28% decline after new hires. Re-fetched and text-extracted directly from the PDF for this synthesis. tigta.gov · original document
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Four tax systems fail the same way: administrative capacity erodes faster than the base it's meant to track. Kentucky's new tax software revived $568.8 million in debt the state had already written off as legally uncollectible. Kansas's first-ever exemption audit found $54 billion -- 15% of its entire property base -- off the tax rolls, with $1.2 billion carrying no recorded reason. San Francisco has $281.6 billion in assessed value stuck in 14,652 unheard appeals, answered by an appraiser corps that grew three-quarters of one position. And the lost about 30% of its workforce while the $696 billion federal tax gap held flat.