BRIDGES · Taxes and residency

Thin capitalisation

Thin capitalisation

debt/equitythe ratio is controlled
deductionwhat is limited
related partiesthe main focus of the rules
  • 3 min read
  • Updated: July 2026
  • BRIDGES Research Team
In brief — 30 seconds
What it is
A situation in which a company is financed mainly by loans rather than equity
Why it is done
Loan interest usually reduces taxable profit, while dividends do not
What the state does
Limits the deduction of interest through thin capitalisation rules
The main risk
Part of the interest will not be deductible, and it is sometimes recharacterised as dividends
Where it matters most
In loans from related parties and from the company’s owner

In plain words

Thin capitalisation is a situation in which a company is financed mainly by loans rather than equity. The economic logic is clear: loan interest, as a rule, reduces taxable profit, while dividends are paid out of profit after tax. Financing a company with debt turns out to be more advantageous.

States respond with thin capitalisation rules. The approaches vary: a limit on the ratio of debt to equity, a cap on deductible interest as a share of earnings before interest, tax, depreciation and amortisation, special rules for loans from related parties. The common purpose is to prevent profits from being artificially reduced through intra-group debt.

The main focus of these rules is loans from the owner and related companies. That is where it is easiest to set non-market terms: an inflated rate, no security, no fixed term. In the event of a breach, part of the interest is not deductible, and in some jurisdictions the payments are recharacterised as dividends with all the tax consequences.

When it matters

Financing a subsidiary
A loan from the owner to the business
Intra-group lending
Buying real estate through a company
Structuring an investment project
A tax audit of a group

What is checked

Ratio
  • Debt to equity
  • Interest as a share of profit
  • Thresholds
Relatedness
  • A loan from the owner
  • Intra-group loans
  • Indirect relatedness
Conditions
  • Market rate
  • Security
  • Term and repayment schedule
Consequences
  • Denial of interest deduction
  • Recharacterisation as dividends
  • Additional assessments

How to reduce the risk

  1. 01Check the jurisdiction’s rules
  2. 02Keep to the debt-to-equity ratio
  3. 03Set market terms for the loan
  4. 04Document it properly
  5. 05Keep to the payment schedule

What you need to know

  • Interest usually reduces profit, dividends do not
  • The rules limit the deduction of interest
  • The main focus is loans from related parties
  • Loan terms must be at market level
  • Interest may be recharacterised as dividends

Common mistakes

  • Financing the company only with a loan from the owner
  • Setting a non-market rate on an internal loan
  • Documenting the loan formally, without a schedule or security
  • Not checking the thresholds in the particular jurisdiction
  • Not repaying the loan for years despite a formal term

What this means for a BRIDGES client

If your business is the source of income for an immigration application, its financial structure must withstand scrutiny. A loan from the owner on non-market terms is a typical weak point that is easier to fix in advance.

Frequently asked questions

01 /What is thin capitalisation?

A situation in which a company is financed mainly by loans rather than equity, to save tax on interest.

02 /Why does this interest the tax authority?

Interest reduces taxable profit, while dividends do not. Intra-group debt can be used to reduce profit artificially.

03 /How is the deduction limited?

Through a debt-to-equity ratio, a cap on interest as a share of profit, or special rules for loans from related parties. The approaches differ between countries.

04 /What happens in the event of a breach?

Part of the interest will not be deductible, and in some jurisdictions the payments are recharacterised as dividends and taxed accordingly.

05 /Can I lend to my own company?

Yes, it is normal practice. What matters is keeping to market terms, a reasonable proportion to equity and proper documentation.

06 /What do market terms mean?

Those on which an independent party would have made the loan: a justified rate, a fixed term, a payment schedule and security where necessary.

See also

Read next

Dmitry Nagy
AuthorDmitry NagyInternational Tax Consultant, BRIDGES
Sergey Evdokimov
Reviewed bySergey EvdokimovManaging Partner, BRIDGES
Updated
July 2026
Version
1.0
Scheduled review
January 2027
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