How to Calculate German AfA Depreciation: Step-by-Step Guide

Welcome! If you run a business, work as a freelancer, or manage rental properties in Germany, you have likely run into the term AfA (Absetzung für Abnutzung). This translates to "deduction for wear and tear" and is the standard German method for asset depreciation.

Calculating AfA correctly is essential for your tax returns, as it allows you to write off the cost of business assets over their useful life, reducing your overall taxable income. In this guide, we will walk you through the manual calculations for both linear depreciation (lineare AfA) and declining balance depreciation (degressive AfA), so you can confidently manage your business assets.

The Prerequisites: What You Need Before You Start

Before putting pen to paper (or opening a spreadsheet), you need three key pieces of information:

1. Acquisition or Production Cost (Anschaffungs- oder Herstellungskosten): This is the net purchase price of the asset plus any costs required to get it running (like shipping, setup, or registration fees). If you are entitled to input tax deduction (Vorsteuerabzug), always use the net amount. If not, use the gross amount.
2. Date of Purchase/Delivery: The exact month the asset was delivered or ready for use. This determines how much depreciation you can claim in the first calendar year.
3. Useful Life (Nutzungsdauer): The German Federal Ministry of Finance publishes official tables called AfA-Tabellen. These tables specify the standard useful life for thousands of different assets (e.g., 13 years for an office desk, 5 years for a passenger car).

Method 1: Linear Depreciation (Lineare AfA)

Linear depreciation is the default and most common method in Germany. The asset's cost is distributed evenly over its useful life.

The Formula

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Step-by-Step Worked Example

Let's say your business purchases a high-end packaging machine on April 1st for €10,000 (net). According to the AfA-Tabelle, this machine has a useful life of 5 years.

• Step 1: Calculate the full annual depreciation. �KBLK1� This means your annual depreciation rate is 20%.

• Step 2: Calculate the pro-rata depreciation for the first year. Because you bought the machine in April, you only owned it for 9 months of the first calendar year (April to December). German tax law requires you to calculate depreciation to the exact month (monatgenaue Aufteilung). �KBLK2�

• Step 3: Create the depreciation schedule.

  • Year 1 (9 months): €1,500 (Remaining Book Value: €8,500)
  • Year 2 (12 months): €2,000 (Remaining Book Value: €6,500)
  • Year 3 (12 months): €2,000 (Remaining Book Value: €4,500)
  • Year 4 (12 months): €2,000 (Remaining Book Value: €2,500)
  • Year 5 (12 months): €2,000 (Remaining Book Value: €500)
  • Year 6 (3 months): €499 (Remaining Book Value: €1)*

  *Note: In the final year, it is common practice to leave a nominal value of €1 (Erinnerungswert) on the books if you plan to keep using the asset after it has been fully depreciated.

Method 2: Declining Balance Depreciation (Degressive AfA)

Declining balance depreciation allows you to write off a higher percentage of the asset's value in the early years. This is highly beneficial for cash flow. However, the German government only permits this method during specific tax years as an economic stimulus (for example, for assets acquired between 2020–2022, and temporarily reintroduced for certain assets in 2024).

The Formula

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Note: The declining rate is typically capped by law (e.g., up to 2 times the linear rate, up to a maximum of 20% or 25%). Let's assume a legal cap of 20% for our example.

Step-by-Step Worked Example

Using the same €10,000 machine with a 5-year useful life bought on January 1st (to keep the months simple) with a 20% declining rate:

• Year 1: €10,000 × 20% = €2,000 (Book Value: €8,000)
• Year 2: €8,000 × 20% = €1,600 (Book Value: €6,400)
• Year 3: €6,400 × 20% = €1,280 (Book Value: €5,120)

The Switch to Linear Depreciation

Because declining balance depreciation mathematically never reaches zero, German tax law allows you to switch from the declining balance method to the linear method when the linear calculation yields a higher annual deduction than the declining balance calculation. Once you switch, you cannot switch back!

Common Pitfalls to Avoid

• Ignoring the Month of Purchase: A common mistake is claiming a full year of depreciation for an asset purchased late in the year. Always apply the pro-rata temporis rule (rounding to the nearest full month of ownership).
• Using Gross Costs: If your business is VAT-registered and recovers input tax, you must use the net price. Using the gross price will artificially inflate your depreciation and cause issues during a tax audit.
• Forgetting Low-Value Asset Limits (GWG): In Germany, assets costing up to €800 (net) can often be written off immediately in the year of purchase as Geringwertige Wirtschaftsgüter (GWG), meaning you don't need to spread the cost over several years.

When to Use an Online AfA Calculator

While doing these calculations by hand is great for understanding the underlying accounting principles, using an online AfA Depreciation Calculator is highly recommended when:

• You need to calculate complex schedules switching from declining to linear depreciation automatically at the optimal year.
• You have dozens of assets purchased at different times of the year and need to generate an instant, error-free export for your tax advisor (Steuerberater).