Retirees are mostly concerned whether they have sufficient retirement capital to fund their post-retirement income needs for some unknown period in the future. Hence, various rules of thumb exist in the retirement industry to guide retirees in their decision-making. For example, aiming to have retirement capital available between 15 to 20 times your annual income needs at retirement. Or, for every R4,000 per month income required, one should have R1 million in capital available – meaning R5 million in retirement capital to meet R20,000 per month. These rules assume that income needs will adjust with inflation over time.
While these rules are very handy, it does not solve the problem if one’s retirement portfolio value does not meet these retirement capital targets. The situation may arise because of many “self-made” causes; inadequate contributions, not re-investing the proceeds upon resignation from a previous employer’s retirement fund, irresponsible investment choices, etc. Moreover, one could have done all the right things “by the book” leading up to retirement, but market returns were simply poor or subdued for several years before reaching retirement age. Thus, exogenous events led to a situation where capital targets are not met.
But around retirement age, one has limited options of “fixing” the capital shortfall. Maybe one can extent your term of contract with your employer for another year or two, but one might have health issues not making it feasible; also, one’s skills set may be redundant, or simply, the situation at work is emotionally unbearable – “you have had enough” of office politics, daily commuting, stress, etcetera.
In such scenarios, does it mean one can’t retire as planned, yes, likely, but how much does the “capital shortfall” affect the long-term sustainability of one’s retirement plan? What corrective measures should be taken now to address insufficient retirement income at some stage in the future?
An alternative approach is to focus on the income ability of one’s retirement fund. What is the current income (interest, dividends, distributions) yielded by one’s retirement fund and how closely does it match your income needs? For example, say your current fund at retirement is worth R5 million and is invested in a range of equities, commercial property investments (known as REITs), and interest-bearing investments that over the past year yielded a total income of R200,000 (income yield = 4%). Compare this with your income need of say R300,000, thus the income from your retirement portfolio matches 67% of your annual income needs. This could be referred to as the “income coverage” of one’s retirement fund. Given that “coverage”, and with proper portfolio management, known as an “income focus” approach, how many years will the retirement plan be sustainable going forward? 
In the “income focus” approach of retirement planning the capital amount per se is secondary.  The basic idea is to focus on the sustainable, income yielding ability of your retirement fund and to align it with your income needs. Note, however, I am not referring to the maximising of income from the portfolio, and thus forsaking any further capital growth over time, but allocating it in such a manner where income is sustainable and growing with inflation-adjusted needs of the retiree for many years to come. Thus, I’m not considering investments that only pay interest with no underlying capital appreciation, typically like call and term deposits.
The “income focus” approach implies a re-organising of your portfolio composition, and investing predominantly in dividend-growing stocks and REITs. An important characteristic of dividend-paying companies is that dividends tend to be “sticky” over time, i.e. companies do not reduce easily their dividend payments to shareholders/investors, bar an economic crisis or a serious company-specific issue, and usually grow their dividends in line with their economic performance, often well above the inflation rate. Many investment portfolios, however, are geared towards maximising capital growth over time, but with little attention paid to actively managing the income yield. In such portfolios, one will find typically investments in businesses that have vast growth potential, or companies busy expanding new growth opportunities, but pay relatively little, if any, dividends. For retirees, however, that have a specific income need today, such investments won’t suffice really.
 Bridge Asset Management (formerly known as Grindrod Asset Management) is an active proponent of the income focus approach towards investing for retirement. Please refer to their website for detailed information about their investment philosophies and processes.
 It does not mean capital values or growth are not important, but the main emphasis is to manage the investment portfolio to yield a reliable, predictable growing income stream over time.