Borrowing to purchase listed shares – 100% tax ineffective?

Where a person borrows money to purchase shares, the general rule would be that the interest paid on the funds borrowed to fund that acquisition would not be deductible for tax purposes, the reason being that the interest expense is not incurred in the production of “income”.

Similarly, interest paid cannot be said to be a cost incurred in the acquisition of an asset (such as a share) for capital gains tax purposes: by its very nature, interest is a recurring cost only incurred after acquisition of the underlying asset if funded through debt. One would therefore imagine that interest incurred on funds borrowed to acquire an asset can similarly not form part of the “base cost” of the asset for capital gains tax purposes, in other words, used to negate the capital gains tax cost which arises when the asset purchased is eventually disposed of.

Leaving aside the commercial wisdom of borrowing money to fund the acquisition of listed shares (and probably giving up assets as security in the process), the Eighth Schedule to the Income Tax Act contains a surprising exception to the general rule against non-capitalisation of interest costs for capital gains tax purposes. Paragraph 20(1)(g) determines that “… one-third of the interest as contemplated in section 24J excluding any interest contemplated in section 24O on money borrowed to finance the expenditure contemplated in items (a) or (e) in respect of a share listed on a recognised exchange…” may be added to the base cost of those listed shares acquired. In other words, whilst all interest incurred on such debt funding will not be taken into account to calculate the base cost of the shares, 33% of all interest incurred at least may be added to the initial cost of acquisition of the shares in determining its base cost, and eventually in calculating the capital gain realised on disposal of those shares in due course.

While interest is therefore not deductible for tax purposes on the debt used to acquire shares generally – and interest would moreover typically not rank as a cost to be taken into account for purposes of calculating the base cost of an asset for capital gains tax purposes – interest incurred on the acquisition of listed shares appears to be a definite exception.

The exception is definitely one of the lesser-known provisions in the Income Tax Act, and one which is often overlooked when listed shares are sold. Where a listed share portfolio is therefore built up over time, investors should take into account borrowing costs that may have been incurred over the years to shore up further investments in their listed investment portfolios.

This article is a general information sheet and should not be used or relied upon as professional advice. No liability can be accepted for any errors or omissions nor for any loss or damage arising from reliance upon any information herein. Always contact your financial adviser for specific and detailed advice. Errors and omissions excepted (E&OE)





We use cookies to improve your experience on our website. By continuing to browse, you agree to our use of cookies

IC Marais

Professional experience:

IC Marais is a certified CA (SA) with public sector and private sector technical knowledge based on 5 years’ Public Sector accounting, auditing and financial management experience and 5 years audit, tax and accounting experience. Detailed knowledge of private and public sector accounting and auditing standards (GRAP, IPSAS, IFRS, IAS, ISA) and public sector financial legislation (MFMA, etc.)

He enjoys the outdoors, hunting and fishing.


Professional experience:

In 1995, Schalk started as a trainee at Warner and Newton (which became Moores Rowland in 1997 and then Mazars Moores Rowland in 2007) in Bloemfontein. In 1998, Schalk was appointed as manager at Moores Rowland, where he became a partner in 2003. Schalk received his Postgraduate Certificate in Advanced Taxation in 2006 and in 2009 he received his Certificate in the Administration of Estates.


Professional experience:

Cedric started as a trainee at Warner and Newton (which became Moores Rowland in 1997 and Mazars Moores Rowland in 2007), Bloemfontein, in 1986. After completion of his articles, he joined the Special Investigations Division of the Department of Finance (SA Revenue Services) as a senior inspector from 1990 to 1991.


Professional experience:

Lucha started her career as a tax inspector at the Inland Revenue Department of New Zealand. After this she worked in commerce in Canada, Mexico and the United States.

On her return to South Africa, she completed her CA training contract with us and has been with Newtons ever since. She became a Partner in 2012.

Apart from her CA(SA) qualification she also holds a postgraduate certificate in Advanced Taxation (2005) and has the overall responsibility for training as our Training Officer.