FIG 0.1Source-backed
Every material fact carries its source.
County values, documents, and deadlines are captured with their source and as-of date. A missing source stays missing — it never silently becomes zero or clear.
Coverage: Texas live · California next
Property tax, under control.
Regilon shows which commercial properties may be overassessed, what proof is missing, when a reviewed packet is worth buying, and how savings become verified.
Free to scan · No card required · Public-record sourced
01Screen02Source room03Review04Watch05Verify
Portfolio under watchTX · nightly check
SourceDocumentAnalysisReviewVerified
Hover a node to trace its custody
The five proof stages · screening → cash
Screening exposureReviewed estimateOutcome reductionBill-verifiedCash realized
Illustrative — example record types, not customer data.
Every county has its own deadline — and next year can reset the work.
Regilon monitors assessment changes, appeal windows, and savings opportunities across the portfolio so you do not discover the issue after it is too late — and it keeps watching after the first result.
01
Do I have a real problem?
Assessment jump
Your taxable value increased faster than similar properties.
Equity gap
Comparable properties are assessed lower per sqft or unit.
Deadline risk
Appeal window closing soon on one or more properties.
Carry-forward risk
Last year’s reduction may reset upward without annual monitoring.
Evidence strength
Whether the case is worth filing based on comps and county data.
02
Year two and beyond
A successful appeal can create verified first-year savings, but future-year impact depends on the county and the reassessment cycle. Regilon keeps monitoring so owners know whether savings persist, reset, or need defending again.
- 01Screen portfolio
- 02Generate evidence packet
- 03Owner approves filing
- 04Verify first-year savings
- 05Track carry-forward impact
- 06Re-screen every year
First-year savings are verified. Future-year savings are monitored.
03
What happens after the result?
Won reduction
First-year savings are verified; Regilon tracks whether the reduction carries forward and alerts you if the county reassesses upward.
Lost appeal
The property stays under watch for new comps, income changes, or assessment jumps that could strengthen a future case.
Did not file
Monitoring continues, with an alert if the economics change before a future deadline.
Property sold or acquired
Tax exposure becomes acquisition and disposition intelligence — reassessment risk, appeal upside, and NOI impact.
Five stages. One case, from screen to verified.
One case branches through five connected stages — each hands the next an explicit state, and nothing advances by inference. Follow a branch to see what runs inside it.
The caseOne workspace-scoped case
1.0
Screen
Rank the portfolio by what the county record actually says.
1.1County record match
Add accounts, addresses, or a portfolio file. Each property is matched to its county appraisal record, and screening works from that record — not from a guess.
1.2Equity signal
Comparable properties are compared on assessed value per square foot. When peers are assessed lower, the gap appears as a screening signal — a planning estimate, never a verified outcome.
1.3Deadline posture
Every property shows where it stands against its jurisdiction’s protest window, so urgency is visible while there is still time to act.
Screening scan
Harris County · Tax year 2026 · Ranked by screening priority
Screening signals · planning estimates
- 019114 Winkler DrAcct 0662540000041$8.4MEquity gap −18%12 days left
- 024801 Almeda RdAcct 0411180000007$5.1MEquity gap −11%12 days left
- 031330 W 34th StAcct 0732010000018$3.9MAssessment +14% YoY26 days left
- 046220 Telephone RdAcct 0520900000033$2.7MWatch only—
2.0
Source room
Collect the documents that change the next decision.
2.1Documents that unlock steps
Notices, tax bills, rent rolls, sale evidence, and outcome orders are requested where they unlock the next step. Every source names what it makes possible.
2.2Extraction with provenance
Every extracted field carries its own provenance — the document it came from and its review status. An extraction stays a candidate until it is confirmed; it never silently overwrites a county record.
2.3Honest coverage
Coverage is reported as it stands: which sources are captured, which need review, and what each gap blocks. A missing source never becomes clear by inference.
3.0
Review
A reviewer clears the case before money moves.
3.1Comparable QA with named exclusion reasons
Every comparable that is excluded carries a named reason — different subtype, stale sale, size out of band. Reviewers see selected and excluded peers before relying on an equity comparison.
3.2Reviewer gates before checkout
Packet checkout opens only after review gates clear. If a gate holds, the property shows the reason — not a payment button.
3.3The evidence packet
The reviewed packet separates county facts, uploaded sources, and labeled estimates into numbered sections built for a filing decision. Estimates stay labeled until they are reviewed.
Reviewer workbench
Six independent states — never one merged badge
Product mode
Reviewed evidence packet
Review state
Reviewer cleared
Payment state
Unpaid
Submission state
Not filed
Outcome state
No outcome recorded
Proof stage
Reviewed estimate
Comparable QA · every exclusion carries a named reason
- 7702 Harwin DrIncluded
- 10600 Fondren RdIncluded
- 5900 Hillcroft AveExcluded — different subtype
- 2323 S Voss RdExcluded — outside sale window
4.0
Watch
Keep the whole portfolio under annual watch.
4.1Nightly county checks
Public county sources are checked nightly. Results are recorded per source, and a partial failure is persisted as a failure — a failed check never reports as clear.
4.2Public-record change feed
Assessment changes, protest-status updates, and tax-rate movement are logged against the specific property and tax year, so you can see what moved and when.
4.3Deadline control
Protest windows and jurisdiction deadlines are tracked per property. The Action Center ranks what needs attention before a window closes.
Action Center
Coverage · 9114 Winkler Dr · Tax year 2026
2 of 3 public sources current
Public-source monitoring
- County appraisal rollResponded · Jul 17, 2026 07:15 UTC
- ARB protest logResponded · Jul 17, 2026 07:15 UTC
- Tax-rate (TNT) snapshotPartial · last good result retained
Customer documents
- 2026 assessment noticeCaptured · needs review
- 2026 tax billNot on file · blocks bill verification
Next action — review the 2026 assessment notice before the Jul 25 protest deadline.
5.0
Verify
Savings count only when documents confirm them.
5.1Outcome documents
Outcomes are recorded from documents — ARB orders, corrected notices, tax bills — not from assumptions about what probably happened.
5.2Bill-verified savings
Savings move through explicit proof stages, from screening exposure to bill-verified. A dollar is verified only when the tax bill confirms it; estimates never graduate on their own.
5.3Independent fee audit
The Outcome & Fee Audit independently verifies a filed protest’s result from official documents before any success fee applies.
Every outcome makes the next recommendation better.
More scans → More packets → More outcomes → Better recommendations → More verified outcomes → Stronger monitoring
The workspace
Walk the five connected slices — portfolio, property, source room, evidence workspace, and Tax Watch — the way they connect in the product: one ranked list, one open property, one next action.
app.regilon.com/portfolio
01 / 05
Portfolio · Harris County, TX · Tax year 2026
8 properties, ranked by next-action urgency.
Estimated annual tax under watch
$1,936,000
County tax bills · as of Jun 12, 2026
Ranked properties
Assessed 2026 · workflow state
93Kirby Grocery-Anchored Retail7747 Kirby Dr, Houston · Retail$18,188,217Protest proof captured
86Garden Oaks Fitness Center4412 N Shepherd Dr, Houston · Commercial$11,924,528Source room needs review
79Buffalo Speedway Retail5110 Buffalo Speedway, Houston · Retail$9,800,000Source room needs review
76CityWest Office Park2550 CityWest Blvd, Houston · Office$11,092,855Outcome verification queued
61Fulton Street Commercial8861 Fulton St, Houston · Commercial$7,400,000Source room needs review
+2 more · Tax watch active
One clear next action: 5425 Katy Fwy has the earliest open protest window and a required source that still needs review.
Illustrative — example records, not customer data.
Harris County · tax year 2026
- 01
Portfolio
One ranked list. One clear next action.
Every property carries its workflow state. The queue orders itself by deadline pressure and readiness, so the next property to open is never a judgment call.
app.regilon.com/portfolioPortfolio · Harris County, TX · Tax year 2026
8 properties, ranked by next-action urgency.
Estimated annual tax under watch
$1,936,000
County tax bills · as of Jun 12, 2026
Ranked properties
Assessed 2026 · workflow state
93Kirby Grocery-Anchored Retail7747 Kirby Dr, Houston · Retail$18,188,217Protest proof captured88Katy Freeway Retail Pad5425 Katy Fwy, Houston · Retail$14,200,000Source room needs reviewNext action86Garden Oaks Fitness Center4412 N Shepherd Dr, Houston · Commercial$11,924,528Source room needs review79Buffalo Speedway Retail5110 Buffalo Speedway, Houston · Retail$9,800,000Source room needs review76CityWest Office Park2550 CityWest Blvd, Houston · Office$11,092,855Outcome verification queued61Fulton Street Commercial8861 Fulton St, Houston · Commercial$7,400,000Source room needs review+2 more · Tax watch active
One clear next action: 5425 Katy Fwy has the earliest open protest window and a required source that still needs review.
- 02
Property
Open a property, get the whole decision.
Assessment history, the peer benchmark behind the screening score, and what each weighting means — explained in plain English next to the number.
Following · Katy Freeway Retail Pad
app.regilon.com/properties/5425-katy-fwyKaty Freeway Retail Pad
5425 Katy Fwy, Houston, TX · Retail · APN 0102070000099
Source room needs reviewProtest window · Jul 25, 2026Assessed value 2026
$14,200,000
County record · as of Jun 12, 2026
Annual tax bill
$284,000
County record · 2025 bill
Peer benchmark
$246/sqft vs $295 assessed
Preliminary equity benchmark
Comparable evidence
6 records
County + verified sales
Assessment trend · 2023–2026
County record2023 · $11.6M▲ 22% over 4 yrs2026 · $14.2MAssessed at $295/sqft against a $246/sqft peer benchmark — a preliminary equity benchmark, pending review.
Screening score
88/100Property signal30% weightPeer support25% weightAssessment review20% weightSource priority15% weightRecord readiness10% weightPotential tax impact
$52,000–$67,400
Screening exposure · planning estimate — not verified savings
- 03
Source room
Every source has an explicit state.
Captured, needs review, expected later, optional backup — and what each one unlocks. Required proof stays separate from helpful support.
Following · Katy Freeway Retail Pad
app.regilon.com/properties/5425-katy-fwy/sourcesSource room · 5425 Katy Fwy
Required proof stays separate from helpful support.
Required proof
1 still missing
1 needs review before it counts
Source
State
What it unlocks
County appraisal record
Official source · HCAD
Captured Jun 12, 2026Captured Jun 12, 2026Screening and the equity benchmark
2026 assessment notice
Owner upload
Needs reviewNeeds reviewReviewer workpaper and the requested value
2025 tax bill
Owner upload
CapturedCapturedVerifies the tax-rate line
Rent roll
Owner upload
Expected laterExpected laterStrengthens the income approach — not required at this stage
Owner authorization
Owner signature
Optional backupOptional backupNeeded only if a filing proceeds
2 of 3 required sources captured · 1 needs review
Expected-later and optional items never block the stage that does not require them.
- 04
Evidence workspace
Serious work stays review-gated.
Comparable QA, reviewer sign-off, payment, and filing are independent states. Nothing exports until the gates pass.
Following · Katy Freeway Retail Pad
app.regilon.com/properties/5425-katy-fwy/packetEvidence workspace · 5425 Katy Fwy
Five independent states — mode, review, payment, submission, proof — shown separately, never fused into one badge.
Product mode
Reviewed evidence packet
Review state
Reviewer gate pending
Payment state
Checkout locked
Submission state
Not filed
Proof stage
Screening exposure
Comparable QA · 6 records
Included7800 Kirby Dr
Oct 2025 · $238/sqft
Included2626 S Loop W
Jun 2025 · $251/sqft
Excluded — outside sale window9600 S Main St
Nov 2024 · $228/sqft
Every exclusion carries its reason into the packet.
Filing-ready export withheld
Reviewer approval required before checkout.
- Comparable QAcomplete6 records screened · 1 excluded with reason
- Source reconciliationpendingWaiting on the 2026 assessment notice
- Named reviewer sign-offpendingQueued behind source reconciliation
- 05
Tax watch
The year keeps moving. So does the watch.
Reassessments, notice releases, and rate adoptions reopen the path when they matter — separate from the active case, never lost after one appeal.
Following · Katy Freeway Retail Pad
app.regilon.com/monitoringTax watch activeTax watch · portfolio control loop
Annual change stays visible without crowding the active case.
Source check · 3 of 3 monitored sources responded · Jul 17, 2026 07:15 UTC
8 days leftProtest window · 5425 Katy Fwy
Closes Jul 25, 2026 (Harris rule)
WatchingAssessment notice release
Reopens the property path when it lands
WatchingTax-rate adoption · Oct 2026
Recalculates the bill line for every property
Outcome verification queuedARB reduction · 2550 CityWest Blvd
Reduction confirmed — county bill check still open
A reduction becomes verified savings only after the county bill confirms it — monitoring and verified outcomes stay separate.
Illustrative example records — screening figures are planning estimates, not verified outcomes.
Run the free screening scan →Every dollar traces to a source
Every number in the workspace resolves to a path through this graph — a county record, a filed document, a reviewer decision, or a bill-verified outcome. Hover any record to trace its full chain of custody, end to end. Nothing floats free.
Hover a record to trace its custody
Illustrative provenance graph — example record types, not customer data.
Official source → document → analysis → reviewer → verified ledger
Built for commercial owners without a property-tax department.
01
Multifamily owners
Annual exposure monitoring across units — not one appeal at a time.
02
Small-to-mid CRE portfolios
5–200 properties with a system of record, not a property-tax department.
03
Property managers
Co-branded scans and monitoring your owners actually renew.
04
Referral partners
Partner-friendly opportunity reviews without doing appeal work yourself.
You stay in control.
FIG 0.2Reviewer-gated
Review gates come before checkout.
Packet checkout opens only after review gates clear, and nothing files without your explicit consent. Estimates stay labeled as estimates until the case is reviewed.
FIG 0.3Verified-only
Savings count only when documents confirm them.
Estimated savings are planning signals, not verified outcomes. Success fees apply only after savings are confirmed against official documents.
Numbers under the hood
The workspace sits on an indexed county record base, a reconciled analysis layer, and a model calibrated on real protest outcomes — counted, not claimed.
87,596
Harris commercial properties indexed
Live production count · Jul 17, 2026
951,015
County source rows indexed
Live production count · Jul 17, 2026
343,930
Property-year analyses reconciled
Live production count · Jul 17, 2026
340,221
ARB protest records captured
Live production count · Jul 17, 2026
139,685
Harris outcome rows calibrating the model
Model artifact · training set
52,760
Unique properties in the outcome history
Model artifact · training set
13,947
Held-out rows scored blind
Model artifact · holdout test
5
Proof stages from screening to cash
Financial-truth contract
<50ms
Canonical read-model lookups
Materialized read models
Estimates trained on real protest outcomes.
Savings and filing recommendations are calibrated on Harris commercial ARB outcome rows with property-level holdout tests, then validated on properties the model did not train on.
Model-performance figures are held internal pending benchmark reproduction. Human review remains required.
Platform internals and backtest metrics — not customer outcome promises.
Live counts as of Jul 17, 2026
Customer results · none published yet
Design-partner results will be published here when they are verified.
A quote appears in this slot only with a named customer and a source-confirmed outcome behind it. Until then, the slot stays empty on purpose.
County Assessor Rolls
CoStar
MLS
Regrid
Public Deed Records
GIS Parcel Data
Appeal Outcomes
2026 appeal windows
Every county has a deadline.
Active in Texas today. Regilon monitors every deadline, every year.
Harris · Dallas · Travis
00days
:00hrs
:00min
:00sec
May 15, 2027
Next: California
Harris County
—May 15
Dallas County
—May 15
Travis County
—May 15
Formal protests due May 15 for annual valuations.
Supplemental assessments have separate 60-day windows. Regilon flags these too.
Scan your portfolioUpload your portfolio now. Keep it running every year.
Start with a free tax exposure scan. Turn on Portfolio Tax Watch when you are ready to watch the whole portfolio — not just one appeal.
Regilon provides data analysis and decision-support tools based on public records, user-provided information, and third-party data. Regilon does not provide legal, tax, or certified-appraisal advice. Estimated savings are not guaranteed. Filing requirements, deadlines, and outcomes vary by jurisdiction.