this "strategy" would be too easy. Even if you opt for an accumulating ETF/mutual fund/etc, the re-invested dividend is subject to your Swiss taxable income. How much the accumulated or re-invested income is can be found on the federal tax administration homepage:
https://www.estv.admin.ch/ -> Kurslisten (DE, FR, IT only).
Therefore, theoretically, there should not be a difference if you opt for an accumulating or a distribution share class of an ETF / Mutual fund, etc. In reality the taxable amount can be different (higher or lower) depending on several factors (which I also do not know...but e.g. fund domicile, double taxation treaty of ETF, etc. )
Practical example: For instance: if you compare 2014 figures of the UBS ETF (CH) - SMI (CHF) A-dis (=dividend distribution / http://www.six-swiss-exchange.com/fu...0017142719CHF4 ) with the db x-trackers SMI® UCITS ETF (DR) 1C (accumulating / http://www.six-swiss-exchange.com/fu...0943504760CHF4 ), the income of the distributing ETF (=UBS) was CHF 1.64 whereas the accumulating (= db) was only CHF 0.7991.
So in this example you would be right, but...in 2013, it was the other way around:
taxable income UBS: CHF 1.44
taxable income db: CHF 2.173
see:
https://www.ictax.admin.ch/extern/de...017142719/2014
https://www.ictax.admin.ch/extern/de...943504760/2014
as outlined, the fact "accumulating vs. distributing" should theoretically not make a difference as, even if the dividends are reinvested in the ETF, you need to declare the income part in your Swiss annual tax statement.
but in my opinion there is a "mechanism" which makes a difference to your "return after tax for a Swiss tax payer": instead of opting for an ETF, choose an ETT (exchange trading tracker - which is a certificate or structured product with the same aim of tracking an underlying's performance).
coming back to my example above (ETF on SMI): if you had chosen the UBS ETT on SMI TR Index (instead of one of the acc. or dist. ETFs), this product would not have been subject to Swiss income tax. So your "return after Swiss tax" would have been better like that.
remark:
Obviously, from a risk perspective, by buying a certificate instead of an ETF, you have a higher risk (counterparty)....so an investor would actually expect a higher return.
http://keyinvest-ch-en.ubs.com/produ...n/CH0108347417
and finally:
please remember that not only the potential income tax can have an impact on your "return after Swiss taxes" but also the fees which an ETF/ETT charges, the spread, etc.