Corporation Tax - Interest Deduction Limitations

Interest Deduction Limitations

Most jurisdictions allow a tax deduction for interest expense incurred by a corporation in carrying out its trading activities. Where such interest is paid to related parties, such deduction may be limited. Without such limitation, owners could structure financing of the corporation in a manner that would provide for a tax deduction for much of the profits, potentially without changing the tax on shareholders. For example, assume a corporation earns profits of 100 before interest expense and would normally distribute 50 to shareholders. If the corporation is structured so that deductible interest of 50 is payable to the shareholders, it will cut its tax to half the amount due if it merely paid a dividend.

A common form of limitation is to limit the deduction for interest paid to related parties to interest charged at arm's length rates on debt not exceeding a certain portion of the equity of the paying corporation. For example, interest paid on related party debt in excess of three times equity may not be deductible in computing taxable income.

The United States, United Kingdom, and French tax systems apply a more complex set of tests to limit deductions. Under the U.S. system, related party interest expense in excess of 50% of cash flow is generally not currently deductible, with the excess potentially deductible in future years.

The classification of instruments as debt on which interest is deductible or as equity with respect to which distributions are not deductible can be complex in some systems.