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Depreciation Decision Lab

Classify the asset → choose the tax route → calculate the deduction → follow the result into the partner's K-1.

Case: Bengaluru Bytes LLC
The storyArun and Meera each own 50% of Bengaluru Bytes LLC, a U.S. partnership. In 2026 the business buys a $10,000 server, uses it 100% for business, and places it in service during the year. Before any depreciation deduction, the partnership has $40,000 of ordinary business income. For this learning case, assume the server qualifies for MACRS, 100% bonus depreciation and Section 179, the half-year convention applies to the MACRS-only route, and all Section 179 income/other limitations are satisfied.
Server Cost
$10,000
Property Class
5-year
MACRS Year 1
20%
Partners
50% / 50%
MACRS = RECOVERRecover basis over the tax recovery period. For this 5-year asset using the half-year table, Year 1 is 20%.
BONUS = ACCELERATEQualified property can receive an additional first-year deduction. In this case, 100% means the entire $10,000 is deducted in Year 1.
§179 = ELECT + PASSThe business elects the expense. In a partnership, the elected §179 amount is separately stated and allocated to partners on Schedule K-1.

1. First know the asset class

The recovery period comes from the type of asset, not how long management expects to keep it. These are useful GDS reference points.

Class / Recovery periodEasy examples to remember
3-yearCertain tractor units for over-the-road use; certain horses / rent-to-own property
5-yearComputers, servers, cars/light trucks, office machinery
7-yearOffice furniture and fixtures — desks, files, safes
10-yearVessels/barges/tugs; certain agricultural structures; fruit/nut trees and vines
15-yearCertain land improvements; qualified improvement property (QIP)
20-yearCertain farm buildings and specified utility-related property
25-yearWater utility property
27.5-yearResidential rental building
39-yearNonresidential real property — office building, store, warehouse
Not depreciableLand itself

This is a learning map, not an exhaustive classification list. Actual class life and eligibility can depend on the specific property and use.

2. Quick classification warm-up

Use the reference above. The goal is to make the common classes automatic.

3. One server — three tax routes

Treat each route as a separate scenario. Do not combine all three deductions on the same $10,000 basis.

Route A — MACRS only

$10,000 basis × 20% Year-1 rate. Whatever is not deducted remains as tax basis for future depreciation.

Route B — 100% Bonus

For this qualified-property scenario, 100% of the basis is deducted in Year 1. Regular MACRS has no remaining basis.

Route C — §179

The partnership elects to expense the $10,000. The elected amount is separately stated to Arun and Meera.

Order when methods are combined: §179 → Bonus → MACRS on the remaining basis
Training assessment: your name and submitted responses are recorded when you submit.

$10,000 × 20%

$

Cost − Year 1 deduction

$

Qualified basis × 100%

$

Cost − bonus deduction

$

Assume full $10,000 is elected and all limits are satisfied

$

Cost − elected §179 amount

$

4. Follow it into Arun's K-1

Start with $40,000 partnership ordinary income before depreciation. Arun owns 50%. This is where §179 behaves differently from regular MACRS/bonus depreciation.

Partnership ordinary income is reduced by regular depreciation, then split 50/50.

$

Bonus depreciation reduces partnership ordinary income, then split 50/50.

$

§179 is not deducted in partnership ordinary income for this purpose; first split the $40,000 ordinary income 50/50.

$

Arun receives 50% of the partnership's elected §179 amount.

$
2026 facts worth remembering
  • 100% bonus depreciation generally applies to eligible qualified property acquired and placed in service after January 19, 2025; qualified MACRS property generally includes property with a recovery period of 20 years or less.
  • For tax years beginning in 2026, the general §179 dollar limit is $2,560,000 and the phase-out threshold begins at $4,090,000.
  • §179 is elective and subject to eligibility and income/other limitations. For partnerships, the deduction is allocated to partners and separately stated on Schedule K-1; partner-level limitations still matter.
  • Bonus and §179 eligibility are not identical. Always identify the asset first, then test the specific rule.
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