---
title: "MACRS Depreciation Calculator"
description: "Calculate MACRS depreciation for business assets. Supports 5-year, 7-year, and 15-year property classes with half-year convention and bonus depreciation options."
canonical_url: "https://www.themoneypocket.com/tools/macrs-depreciation-calculator"
last_updated: "2026-05-01T16:53:14.421Z"
---

MACRS (Modified Accelerated Cost Recovery System) is the IRS-mandated depreciation method for most business assets placed in service after 1986. It lets you recover the cost of business property over a set number of years using accelerated deductions that front-load the tax benefit — reducing your taxable income more in the early years of ownership.

::macrs-depreciation-calculator::

## What Is MACRS?

MACRS replaced the Accelerated Cost Recovery System (ACRS) as the required depreciation method for US federal tax purposes. Under MACRS, each asset is assigned to a **property class** with a specific recovery period. Assets in shorter classes recover their cost faster and generate larger early-year deductions.

MACRS uses **accelerated depreciation methods** — primarily 200% declining balance (switching to straight-line when that becomes more favorable) for most personal property, and 150% declining balance for 15-year and 20-year property. This is more favorable than straight-line depreciation, which spreads deductions evenly.

## GDS vs. ADS

MACRS offers two systems:

**General Depreciation System (GDS)** — the default. Provides shorter recovery periods and uses accelerated methods. This is what most businesses use.

**Alternative Depreciation System (ADS)** — required in specific circumstances (listed property not used predominantly for business, assets used outside the US, certain tax-exempt use property, and certain farming property). ADS uses longer recovery periods and straight-line depreciation. Some taxpayers also elect ADS voluntarily to create a more even deduction stream.

## Property Class Lives

Under GDS, every asset falls into one of these recovery classes:

<table>
<thead>
  <tr>
    <th>
      Property Class
    </th>
    
    <th>
      Examples
    </th>
    
    <th>
      Method
    </th>
  </tr>
</thead>

<tbody>
  <tr>
    <td>
      3-year
    </td>
    
    <td>
      Certain racehorses, special tools
    </td>
    
    <td>
      200% DB
    </td>
  </tr>
  
  <tr>
    <td>
      <strong>
        5-year
      </strong>
    </td>
    
    <td>
      Computers, cars, light trucks, research equipment
    </td>
    
    <td>
      200% DB
    </td>
  </tr>
  
  <tr>
    <td>
      <strong>
        7-year
      </strong>
    </td>
    
    <td>
      Office furniture, fixtures, most machinery and equipment
    </td>
    
    <td>
      200% DB
    </td>
  </tr>
  
  <tr>
    <td>
      <strong>
        10-year
      </strong>
    </td>
    
    <td>
      Vessels, single-purpose agricultural structures
    </td>
    
    <td>
      200% DB
    </td>
  </tr>
  
  <tr>
    <td>
      <strong>
        15-year
      </strong>
    </td>
    
    <td>
      Land improvements (fences, sidewalks, roads), retail motor fuel outlets
    </td>
    
    <td>
      150% DB
    </td>
  </tr>
  
  <tr>
    <td>
      <strong>
        20-year
      </strong>
    </td>
    
    <td>
      Farm buildings, municipal wastewater treatment plants
    </td>
    
    <td>
      150% DB
    </td>
  </tr>
  
  <tr>
    <td>
      <strong>
        27.5-year
      </strong>
    </td>
    
    <td>
      Residential rental property
    </td>
    
    <td>
      Straight-line
    </td>
  </tr>
  
  <tr>
    <td>
      <strong>
        39-year
      </strong>
    </td>
    
    <td>
      Commercial real property, office buildings
    </td>
    
    <td>
      Straight-line
    </td>
  </tr>
</tbody>
</table>

When in doubt, the IRS Revenue Procedure 87-56 provides the complete asset class table. If an asset doesn't appear in any class, it defaults to **7-year GDS property**.

## The Half-Year Convention

MACRS applies a **half-year convention** to all personal property (non-real property), regardless of when during the year you actually place the asset in service. This means:

- In **year 1**, you get a **half year** of depreciation (as if the asset was placed in service on July 1)
- In the **final year** of recovery, you also get a half year
- This extends the recovery period by one year (a 5-year property takes 6 calendar years to fully depreciate)

**Mid-quarter convention exception**: If more than 40% of all personal property is placed in service during the last three months of your tax year, you must use the mid-quarter convention instead, which assigns each asset a quarter-year in year 1 based on the actual quarter placed in service.

Real property uses the **mid-month convention**: depreciation begins on the 15th of the month placed in service.

## MACRS Depreciation Example: $50,000 Equipment

Assume you purchase a $50,000 piece of manufacturing equipment (7-year MACRS property) with no bonus depreciation or Section 179 elected. Using GDS with the half-year convention:

<table>
<thead>
  <tr>
    <th>
      Year
    </th>
    
    <th>
      MACRS Rate
    </th>
    
    <th>
      Depreciation
    </th>
  </tr>
</thead>

<tbody>
  <tr>
    <td>
      1
    </td>
    
    <td>
      14.29%
    </td>
    
    <td>
      $7,145
    </td>
  </tr>
  
  <tr>
    <td>
      2
    </td>
    
    <td>
      24.49%
    </td>
    
    <td>
      $12,245
    </td>
  </tr>
  
  <tr>
    <td>
      3
    </td>
    
    <td>
      17.49%
    </td>
    
    <td>
      $8,745
    </td>
  </tr>
  
  <tr>
    <td>
      4
    </td>
    
    <td>
      12.49%
    </td>
    
    <td>
      $6,245
    </td>
  </tr>
  
  <tr>
    <td>
      5
    </td>
    
    <td>
      8.93%
    </td>
    
    <td>
      $4,465
    </td>
  </tr>
  
  <tr>
    <td>
      6
    </td>
    
    <td>
      8.92%
    </td>
    
    <td>
      $4,460
    </td>
  </tr>
  
  <tr>
    <td>
      7
    </td>
    
    <td>
      8.93%
    </td>
    
    <td>
      $4,465
    </td>
  </tr>
  
  <tr>
    <td>
      8
    </td>
    
    <td>
      4.46%
    </td>
    
    <td>
      $2,230
    </td>
  </tr>
  
  <tr>
    <td>
      <strong>
        Total
      </strong>
    </td>
    
    <td>
      
    </td>
    
    <td>
      <strong>
        $50,000
      </strong>
    </td>
  </tr>
</tbody>
</table>

Notice that years 1 and 2 alone account for nearly 39% of the total deduction — this accelerated front-loading is why MACRS is so valuable for cash flow.

## Bonus Depreciation

Bonus depreciation allows you to deduct a **percentage of an asset's cost immediately** in the year of purchase, rather than spreading it over the MACRS recovery period.

**Phase-down schedule (TCJA)**:

<table>
<thead>
  <tr>
    <th>
      Year
    </th>
    
    <th>
      Bonus Depreciation Rate
    </th>
  </tr>
</thead>

<tbody>
  <tr>
    <td>
      2022
    </td>
    
    <td>
      100%
    </td>
  </tr>
  
  <tr>
    <td>
      2023
    </td>
    
    <td>
      80%
    </td>
  </tr>
  
  <tr>
    <td>
      2024
    </td>
    
    <td>
      60%
    </td>
  </tr>
  
  <tr>
    <td>
      2025
    </td>
    
    <td>
      40%
    </td>
  </tr>
  
  <tr>
    <td>
      2026
    </td>
    
    <td>
      40% (extended under OBBBA)
    </td>
  </tr>
  
  <tr>
    <td>
      2027+
    </td>
    
    <td>
      20%
    </td>
  </tr>
</tbody>
</table>

Bonus depreciation applies to new **and** used qualifying property. It's not limited by taxable income (unlike Section 179) and can create a net operating loss that carries forward.

**Example**: That same $50,000 piece of 7-year equipment with 40% bonus depreciation in 2026:

- Bonus depreciation: $50,000 × 40% = **$20,000** deducted immediately
- Remaining basis: $30,000 depreciated over 7 years using MACRS rates

## Section 179 Expensing

Section 179 allows you to **immediately expense** the full cost of qualifying business property rather than depreciating it. Key limits for 2026:

- **Dollar limit**: $1,220,000
- **Phase-out**: Begins when total qualifying property placed in service exceeds $3,050,000 (dollar-for-dollar phase-out)
- **Taxable income limit**: Section 179 deduction cannot exceed your net taxable business income for the year (unlike bonus depreciation, it cannot create a loss — though the excess carries forward)

Section 179 applies to tangible personal property, off-the-shelf software, qualified improvement property, and (with limits) certain vehicles.

**Vehicle limitation**: Passenger automobiles used for business face a "luxury auto" cap that limits annual depreciation — even with Section 179 and bonus depreciation combined.

## Interaction: Bonus Depreciation vs. Section 179

<table>
<thead>
  <tr>
    <th>
      Feature
    </th>
    
    <th>
      Bonus Depreciation
    </th>
    
    <th>
      Section 179
    </th>
  </tr>
</thead>

<tbody>
  <tr>
    <td>
      Dollar limit
    </td>
    
    <td>
      None
    </td>
    
    <td>
      $1,220,000
    </td>
  </tr>
  
  <tr>
    <td>
      Taxable income limit
    </td>
    
    <td>
      None (can create NOL)
    </td>
    
    <td>
      Yes — cannot exceed business income
    </td>
  </tr>
  
  <tr>
    <td>
      New vs. used property
    </td>
    
    <td>
      Both
    </td>
    
    <td>
      Both
    </td>
  </tr>
  
  <tr>
    <td>
      Elected
    </td>
    
    <td>
      Automatic (opt out allowed)
    </td>
    
    <td>
      Must elect
    </td>
  </tr>
  
  <tr>
    <td>
      Vehicle limits
    </td>
    
    <td>
      Subject to luxury auto caps
    </td>
    
    <td>
      Subject to luxury auto caps
    </td>
  </tr>
</tbody>
</table>

Many businesses combine both: use Section 179 first (up to the taxable income limit), then apply bonus depreciation to the remainder, ensuring no NOL is created while still maximizing the immediate deduction.

For a complete explanation of property classes, conventions, and strategies, read our [MACRS Depreciation Guide](/articles/macrs-depreciation-guide).

> **Disclaimer**: This calculator is for informational purposes only and does not guarantee tax accuracy. Depreciation rules involve complex elections and interactions that vary by asset type, business structure, and year. Consult a qualified tax professional before making depreciation decisions.