ETFs versus Investment Trusts: The Maths. Maybe ETFs aren't so bad?

There are a lot of posts that say "don't go near ETFs because of the tax". It's easy to see this perspective when you look at the headline tax rates, but I wanted to dig a little deeper and quantify how the two options compared when you starting taking into account more factors.

I took a scenario where two 50k investments were made - one in the Vanguard's All World Accumulating ETF VWCE and the other in FCIT, a popular alternative.

I made the following assumptions:

  • Investor is in the upper rate of income tax
  • FCIT maintains its current dividend yield (1.5%)
  • Gross performance of the two products is identical (1.5% dividend + 6.5% capital appreciation for the IT / 8% capital appreciation for the ETF)
  • Both maintain their current fees (0.54% vs. 0.22%)
  • Costs associated with buying and selling are ignored (this would be higher for Investment Trusts because of stamp duty, FX fees and potentially higher broker commission)
  • The investments are held for 30 years, with no changes in the tax regime during this time

Copy and pasting numbers from gsheets into reddit is a pain, so here is the key number - the relative after tax value in each year if the investor was to sell. Specifically it is (Net Value of ETF Investment / Net Value of IT Investment). Where the value is <100%, the IT is winning. Where its >100%, the ETF is winning. If you want to see the workings then check it out here. This link will prompt you to make a copy of the sheet, where you can play around with the numbers yourself.

Year Relative Net Return
1 99.32%
2 99.37%
3 99.45%
4 99.58%
5 99.76%
6 99.98%
7 100.25%
8 100.56%
9 99.90%
10 99.31%
11 98.79%
12 98.34%
13 97.95%
14 97.63%
15 97.38%
16 97.18%
17 96.08%
18 95.07%
19 94.15%
20 93.31%
21 92.57%
22 91.90%
23 91.32%
24 90.81%
25 89.48%
26 88.25%
27 87.13%
28 86.11%
29 85.19%
30 84.36%

Here are some observations:

  • For the first couple of years, the IT overperforms slightly because of the €1240 exemption (the higher your investment amount, the less relevant this exemption is, and vice versa)
  • After 7 years, the ETF performance overtakes the IT due to lower drag from fees and dividend tax
  • This overperformance grows until the DD event in year 8
  • Now that the gross amount is lower for the ETF investment, so the outperformance starts to (slowly) decline
  • The rate of decline really accelerates after the 2nd DD event

I did also do this with JAM vs. VUAA and the results were pretty much identical. I know someone will say "what about BRK?". ETFs vs conglomerates is a conversation for a different thread.

Am I missing something here? Is there anything I am not considering that would have a material impact on the result? Also the maths of this is a little tricky in a spreadsheet, so have I gotten something wrong along the way?

TLDR; No investor likes deemed disposal, but for investment timelines less than 10-15 years, the positives of ETFs may outweight the negatives.