# Can I claim Schuldzinsen und Finanzierungskosten (Interest and Financing Costs) as a business expense in Germany?

**Yes, fully claimable.** Yes: interest on business loans and financing costs are generally deductible as Betriebsausgaben. For large businesses, the Zinsschranke (interest barrier rule) under §4h EStG limits deductibility of net interest above €3 million to 30% of tax EBITDA. Most SMEs fall below this threshold and can deduct all business interest.

Typical amount: For a GmbH with a €500,000 bank loan at 5% annual interest, the annual interest charge of €25,000 is fully deductible (well below the €3m Zinsschranke threshold). Tax saving at 30% combined rate: €7,500.

## What Federal Central Tax Office (BZSt) & Finanzämter says

§4h EStG (Zinsschranke): net interest expenses above €3m threshold deductible only to 30% of tax EBITDA. §8a KStG applies the rule to corporations. Below the €3m threshold, interest is fully deductible under §4 Abs. 4 EStG.

## When you can claim

- Interest on bank loans used for business purposes: fully deductible for SMEs below the Zinsschranke threshold
- Leasing charges (operating leases) as period costs: fully deductible, though a Hinzurechnung adjustment applies for Gewerbesteuer
- Factoring fees and trade credit facility charges for working capital
- Overdraft interest on a business current account

## When you cannot claim

- Interest on private loans used for personal purposes: even if the loan account is in the same name as the business
- Deemed interest on shareholder loans that are re-characterised as equity under thin capitalisation or substance-over-form rules
- Interest accrued but not yet paid when using accruals accounting: only the portion relating to the accounting period is deductible

## Good to know

**Pro tip:** For SMEs, the practical Zinsschranke risk only arises with very large debt loads: a net interest expense of €3m implies approximately €60m of debt at 5% rates. However, structuring shareholder loans carefully is important: shareholder loans must be at arm's length rates and properly documented to avoid re-characterisation.

**Important:** Gewerbesteuer applies an additional Hinzurechnung adjustment: 25% of net interest payments are added back to the Gewerbeertrag before calculating GewSt. This means GmbHs pay some Gewerbesteuer on debt interest that is deductible for KSt purposes, a nuance worth noting for highly leveraged businesses.

Source: https://www.bundesfinanzministerium.de/Content/DE/FAQ/Zinsschranke.html

## Related expenses

- [Beratungskosten (Professional Fees)](https://accounts-os.com/de/expenses/professional-fees-de)
- [Büromiete (Office Rent)](https://accounts-os.com/de/expenses/office-rent-de)