- aren't fortunate enough to have a defined benefit pension from your employer coming at some point;
- decide against buying an annuity;
- don’t have any non-investment income streams such as part time work;
then after allowing for whatever State Pension is due your way, you’ll be living off whatever wealth you have accrued during your working life (plus whatever return you can achieve on that wealth).
We've previously looked at how you might calculate how much wealth you need to build before retirement. Today I'm going to run a sobering simulation that demonstrates just how important it is firstly give yourself some contingency in those retirement calculations but then secondly monitor your progress once in retirement, adjusting where necessary (just as you did during the accrual stage), to prevent yourself from running out of investments.
Before we run the simulation let’s define the assumptions:
- Our retiree decides to pull the retirement trigger on the 31 December 2006. On that date the FTSE100 was 6,220, it peaked the following year and today it sits at 6,308. That’s a nominal rise of only 1.4% in around six and half years. You've probably guessed our retiree retired just before the Global Financial Crisis (GFC) took hold.
- Our retiree removes his income for the following year on the 31 December of each previous year. That income is placed in a safe place where a derisory amount of interest is earned.
- All calculations are conducted in real (inflation adjusted) terms meaning that a £ in 2006 is equal to a £ today. The inflation measure used to correct for sterling devaluation is the Retail Prices Index (RPI).
- 6 Simple UK Equity / UK Bond Portfolio’s are simulated for our retiree. The mix includes our retiree being conservative (25% UK Equities : 75% UK Bonds), standard (50% UK Equities : 50% UK Bonds) and aggressive (75% UK Equities : 25% UK Bonds) when it comes to portfolio risk. Two different bond types will also be used in the simulation.
- The UK Equities portion is always the FTSE 100 where the iShares FTSE 100 ETF (ISF) is used as the proxy.
- For the bonds portion a simulation is run against UK Gilts (FTSE Actuaries Government Securities UK Gilts All Stock Index) where the iShares FTSE UK All Stocks Gilt ETF (IGLT) is used as the proxy. We also run a simulation with the bond type I prefer in my own portfolio, UK Index Linked Gilts (Barclays UK Government Inflation-Linked Bond Index), where the iShares Barclays £ Index-Linked Gilts ETF (INXG) is used as the proxy.
- Our retiree rebalances to the target asset allocation on the 31 December of each year to manage risk.
- Only fund expenses are included. Trading commissions, wrapper fees, buy/sell spreads or taxes are not.
- The wealth accrued at retirement (the 31 December 2006) is £100,000. To simulate a larger or smaller amount of wealth just multiple by a constant. For example if you want our retiree to have £600,000 just multiply all the subsequent pound values by 6.