Duplex

Duplex cost segregation: $18K–$55K Year-1 deductions.

House-hackers: only the rental side gets cost-segregated. Owner-occupied half stays on personal residence rules.

Real examples

What duplex cost seg looks like in practice.

Austin duplex — example property

Austin, TX · $640K

House-hacked, 50% basis allocated to rental side

Year-1 federal benefit
$48,200
Denver duplex — example property

Denver, CO · $725K

Pure rental duplex, 1990s build

Year-1 federal benefit
$54,800

Estimates assume 37% federal bracket and full first-year usability of the loss (active income offset or REPS). Your actual benefit varies with bracket, basis allocation, and CPA's treatment.

Good fit when…
  • ✓Pure-rental duplexes (both units rented out)
  • ✓Owner-occupied house-hackers, but only the rental-side basis is eligible
  • ✓Duplexes with separate mechanicals per unit (more 5/15-yr property)
Skip it when…
  • ×Owner-occupied duplexes where you live in both halves
  • ×Duplexes under $250K basis where the math gets thin
Estimate

Run the numbers on your duplex.

Pre-set to Duplex defaults — adjust price + bracket to match your property.

Estimated Year-1 tax savings
$35,520
on $96,000 of accelerated deductions
5-yr15-yr27.5/39-yr
Study cost
$995
ROI on study
36×
Delivery
< 1 hour
Order my study — $995
Estimate based on RSMeans 2024 cost data and IRC §168(k). Your actual result varies with property age, condition, and basis allocation.
Duplex pricing

$995–$1,995 · delivered in under 1 hour.

CPA-Ready Guarantee. Money-back if your CPA can't use the report.

Order my study See sample