Cost segregation data for Madison, WI investors
Interquartile range across 50 engine-modeled property scenarios matched to the Madison, WI investor profile. Year-1 savings shown are the federal benefit (37% + 3.8% NIIT). This state does not conform to federal bonus depreciation, so the state share is not accelerated; it recovers over standard MACRS.
Representative scenarios modeled via Cost Seg Smart's proprietary
engine — IRS ATG-aligned methodology, industry-standard 2026 construction cost data base costs,
calibrated metro multipliers. n=50 fixtures matched to
Madison, WI investor profile. Not derived from individual
client returns. Methodology v1.0.0, generated
May 2026 (reproducible seed: madison-wi_v1_2026-05-17).
Year-1 savings shown are the federal benefit only (37% + 3.8% NIIT). This state does not conform to federal §168(k) bonus depreciation, so the state share is deferred over standard MACRS rather than realized in Year 1; the federal benefit is unaffected. Confirm specifics with your CPA.
Tax law current as of May 2026. Federal: OBBBA restored 100% bonus depreciation under §168(k), permanent for property placed in service on or after January 20, 2025 (property placed in service January 1–19, 2025 remains at 40% under the prior phase-down); 2026+ stays 100%. State conformity varies; verify with your CPA.
Madison is unusual among American metros: a substantial share of its high-W-2 income lives at a single privately-held employer. Epic Systems, headquartered in Verona (just west of Madison), employs roughly 12,000 people on a sprawling 1,000-acre campus that processes more than 4 trillion healthcare records annually. Senior software architects, principal engineers, and clinical-informatics leaders at Epic routinely earn $300K–$1.5M+ — and Epic’s intense secrecy means most W-2 tax-planning content ignores them entirely. Add UW Health, American Family Insurance HQ, Exact Sciences, and Promega, and Madison concentrates an unusual mix of senior tech, healthcare, and insurance W-2 in a metro under 700,000 people.
- $128,000 Accelerated Depreciation (typical STR worked example)
- $52,000 Est. Year-1 Federal Savings (37% + 3.8% NIIT; Wisconsin portion deferred over MACRS)
- 58x Return on Study Cost
Want a number for your specific situation? Use the calculator — preset for property-type defaults you can adjust to your basis and bracket.
Who are Madison cost segregation investors?
Madison’s W-2 investor pool is unusually concentrated by a single employer (Epic) but distributed across four meaningful archetypes:
- Epic Systems senior tech — Verona-headquartered (~12,000 employees on the 1,000-acre Voyager Park campus). Software developers, technical services, implementation consultants, sales leadership. Senior architects, principal engineers, and group leaders typically $300K–$1.5M+. Epic’s distinct culture (privately held, no public-market disclosure) means base + bonus is paid in cash with significantly less RSU complexity than public-co peers.
- UW Health (UW Hospitals + Clinics) — UW–Madison’s academic medical center. Attending physicians, surgeons, department chairs, plus UW–Madison medical school faculty. $400K–$1.2M for senior attendings.
- American Family Insurance HQ + Madison insurance — AmFam HQ in Madison employs ~7,000. Senior actuarial, claims, and tech leadership $250K–$700K. Plus CUNA Mutual / TruStage HQ Madison and SSM Health insurance regional.
- Exact Sciences + Promega + Madison biotech — Exact Sciences HQ Madison (Cologuard), Promega biotech tools, plus FluGen and Catalent Madison senior R&D. $300K–$1M.
The combined marginal-rate stack:
- Federal: 37% (top bracket)
- NIIT: 3.8%
- Wisconsin state: 7.65% (top bracket; applies above $315K MFJ / $234K single)
- Combined: ~48.5%
Wisconsin’s 7.65% top state rate is meaningfully higher than the Sunbelt average and competitive with Minnesota and Oregon. Wisconsin does not conform to federal §168(k) bonus depreciation (its static conformity freezes bonus out), so the state share of a cost-seg deduction is deferred over standard 5/7/15-year MACRS rather than concentrated in Year 1. The federal Year-1 benefit (37% + 3.8% NIIT) is unaffected.
Verify with your CPA — combined-rate math depends on filing status, AGI thresholds for NIIT, the specific WI tax bracket your income hits, and how WI’s depreciation modifications apply to your specific placed-in-service date.
Why cost seg pays for Madison investors
A typical $400K–$900K out-of-state STR reclassifies 24–32% of basis under permanent 100% bonus depreciation. The federal Year-1 benefit comes at 37% + 3.8% NIIT, so every $1 of accelerated depreciation is worth ~$0.408 in Year-1 federal cash savings. Wisconsin does not conform to federal bonus depreciation, so the WI state share is deferred over standard MACRS rather than taken in Year 1.
The Madison-specific feature is Epic’s cash-comp structure. Unlike public-tech peers where comp arrives via multi-year RSU vesting cliffs, Epic pays heavily in base + annual cash bonus. That makes Madison investors’ income smoother year-over-year — which actually simplifies cost-seg deduction timing. Place the property in service before December 31 and the Year-1 federal deduction lands against a predictable, recurring high-W-2 income. No need to time around a 4-year vesting cliff.
Madison also has unusually strong drive-to STR access. Door County (Sturgeon Bay, Egg Harbor, Fish Creek) is a 3-hour drive; Wisconsin Dells is 1 hour; the Northwoods (Minocqua, Eagle River, Hayward) is 4 hours. Investors don’t need to fly to meet the 100-hour material participation test under Reg. §1.469-1T(e)(3)(ii). For out-of-state premium STR, MSN airport has direct flights to ATL → Smokies, MSN→VPS → 30A, and MSN→DEN/LAS → western markets.
Where do Madison investors buy property?
Madison investors flow capital to STR markets within drive or 1-2 hour flight:
- Door County, WI (Sturgeon Bay, Egg Harbor, Fish Creek) — 3-hour drive; cottage/cabin STR market $400K–$900K, premium summer ADR. WI 7.65% state for WI-resident investors (no out-of-state arbitrage), but drive-to material participation is best-in-class.
- Wisconsin Northwoods (Minocqua, Eagle River, Hayward, Boulder Junction) — 4-hour drive; lake-cabin STR $350K–$700K. Same WI state stack.
- Pigeon Forge / Gatlinburg, TN — Smokies — 1-hour direct MSN→TYS; Tennessee 0% state tax, cabin STR.
- 30A / Destin, FL — Florida 0% state tax, premium beachfront. Direct MSN→VPS.
- Park City, UT — Ski STR; UT 4.85% flat state for UT-resident owners; WI-resident investors only owe WI tax.
- Galena, IL + Lake Geneva, WI — Closest drive-to LTR/STR option (1.5 hr); smaller cabin properties $300K–$600K.
Worked Example — Madison
An Epic Systems senior software architect earning $385K base + $185K annual cash bonus, residing in Verona (5 minutes from Epic’s Voyager Park campus), buys a 3BR Door County cottage near Fish Creek for $595K with $20K immediate FF&E (smart-home, hot tub, lake-access dock, theater). After $135K in land, the $460K adjusted basis includes $50K in 5-year assets (appliances, hot tub, smart-home, theater, decorative lighting), $18K in 7-year assets (custom furniture, cottage-themed built-ins), and $60K in 15-year property (lake-access dock, hardscaping, retaining walls, fencing, exterior fixtures, gravel drive).
That’s $128K reclassified into accelerated depreciation in Year 1. At the federal 37% bracket plus 3.8% NIIT, the Year-1 federal savings come to roughly $52,000 (37% + 3.8% NIIT; the Wisconsin portion is deferred over MACRS) — about 58x the cost of the study. With Door County 3 hours from Verona, the 100-hour material participation test is easily met through monthly weekend visits.
Wisconsin does not conform to federal §168(k) bonus depreciation, so the state share of the deduction is deferred over standard 5/7/15-year MACRS rather than taken in Year 1; the federal Year-1 benefit is unaffected. See bonus depreciation by state.
Who doesn’t qualify for cost segregation in Madison?
REPS (Real Estate Professional Status, 750+ hours + >50% personal services in real estate) is structurally impossible for a full-time Epic senior, full-time UW Health attending, or full-time AmFam senior actuarial. The STR exception under Reg. §1.469-1T(e)(3)(ii) (7-day average stay + 100-hour material participation) is the path.
Epic-specific consideration: Epic’s no-RSU comp structure means there’s no large year-end vesting cliff to time the deduction against. Cost-seg planning is simpler — pick the placed-in-service date and the Year-1 deduction lands against predictable W-2. The trade-off: Epic seniors don’t get the concentrated single-year income spike that creates a one-time outsized cost-seg benefit (the way RSU vests do at FAANG peers).
Frequently Asked Questions
How much does a cost segregation study cost in Madison? For a typical $595,000 Madison investment property, a Cost Seg Smart study runs $895. Full pricing: $495 (under $300K), $895 ($300K–$700K), $995 ($700K–$1M), $1,295 ($1M–$1.5M), $1,595 ($1.5M–$2M), $1,995 ($2M–$3M), $2,495 ($3M–$4M), $3,995 ($4M–$6M), $5,995 ($6M–$8M), $7,995 ($8M–$10M). Commercial and 5+ unit multifamily studies start at $1,995; 2–4 unit multifamily from $795. All studies delivered in under one hour with the CPA-Ready Guarantee — full refund if your CPA can’t use the report.
Does Wisconsin conform to federal bonus depreciation? No. Wisconsin does not conform to federal §168(k) bonus depreciation (its static conformity freezes bonus out), so the state-side deduction is deferred and spread over the asset’s standard 5/7/15-year MACRS life rather than concentrated in Year 1. The federal portion (37% + NIIT 3.8%) is unaffected. Confirm your specific treatment with your CPA.
Can Epic Systems senior architects or engineers use cost segregation? Yes. Epic senior employees face a 37% + NIIT 3.8% federal rate plus the Wisconsin 7.65% top state rate. A cost segregation study on an out-of-state STR can generate Year-1 federal tax savings that offset active W-2 income, provided the property qualifies under Reg. §1.469-1T(e)(3)(ii) — average stay 7 days or less and 100-hour material participation by the owner AND the loss is not otherwise limited (at-risk, §461(l) excess business loss, basis). Because Wisconsin does not conform to federal §168(k), the WI share is deferred over MACRS. Epic’s cash-comp structure (no RSU complexity) actually simplifies year-over-year tax planning compared to public-tech peers.
Why is Madison a distinct cost-seg investor metro? Madison’s W-2 concentration around Epic Systems (~12,000 employees, privately held, the largest US healthcare-software employer) is structurally unique — no public-market RSU complexity, smoother annual cash comp, and a notably tech-and-medical concentration in a metro under 700,000 people. Add UW Health attendings, American Family Insurance HQ, Exact Sciences, and Promega and the W-2 density per capita rivals much larger metros. Combined ~48.5% combined bracket sits above the Sunbelt average but below coastal CA/NY.
Are there other WI tax considerations for cost-seg? Wisconsin does not conform to federal §168(k) bonus depreciation, so the state-side benefit is deferred over standard MACRS rather than concentrated in Year 1. WI also has a unique school-aid revenue limit interaction that can affect investors with rental losses claimed at certain income levels — work with a WI-licensed CPA familiar with the state’s depreciation conformity and credit interaction.
Learn More About Cost Segregation
- What Is Cost Segregation? — Full explainer
- STR Tax Exception Explained — The Reg. §1.469-1T(e)(3)(ii) regulatory framework + 7-day rule mechanics
- Cost Segregation for STRs — STR strategy hub
- Real Estate Professional Status — REPS overview
How should Madison, WI investors choose a cost segregation provider?
For a Madison, WI investor buying a property in the $595,000 range, the choice of study provider is the single biggest controllable variable in the ROI. The methodology is fixed by IRS Audit Techniques Guide rules (industry-standard construction cost data, MACRS classification, engineering-based component reclassification) — what varies is delivery cost and turnaround time.
Traditional engineering studies often run several thousand dollars and can take several weeks, because they include on-site inspections, sales discovery calls, and scheduling overhead. The IRS Cost Segregation Audit Techniques Guide does not require a physical site visit; it requires engineering-based classification with industry-calibrated cost derivation and component-level documentation.
Modern automated providers (such as Cost Seg Smart) deliver the same IRS ATG–aligned study for $495–$1,595 in under one hour, using satellite imagery, county assessor data, and the same industry-standard construction cost databases. For a Madison, WI investor at the metro's combined bracket, that cost delta typically exceeds the study cost itself by several times over. The CPA-Ready Guarantee (full refund if the report can't be used by your CPA) plus the 60-day money-back policy makes the decision essentially risk-free on the report itself.
The automated path is best-fit for Madison, WI investors who: own residential STR property valued under $2M, are comfortable uploading closing docs + property photos online (no in-person visit required), and want the report in time to file the current year's return rather than the next one.
| Property value | Cost Seg Smart | Traditional firm |
|---|---|---|
| <$300K | $495 | Traditional engineering firms typically charge several thousand dollars per study, with a 4–8 week turnaround and an on-site visit. |
| $300K–$700K | $895 | |
| $700K–$1M | $995 | |
| $1M–$1.5M | $1,295 | |
| $1.5M–$2M | $1,595 | |
| $2M–$3M | $1,995 | |
| Commercial (under $1M) | $1,995 |
All Cost Seg Smart studies include the CPA-Ready Guarantee (full refund if your CPA can't use the report) plus a 60-day money-back policy. Reports are delivered in under one hour with no on-site visit required.