Hello,

First of all I would like to apologies for my English. It is not my native language so please try to understand me.
I have a question regarding tax in situation if I am self employed in UK for whole year but additionally in the same tax year I have got some work in Switzerland from November 2014 till March2015. Here is little bit more about current situation:
In UK I am self-employed, to deal with accounts I use service of accounting company. Therefore they don’t provide any advise about double taxation between different countries.
Usually I pay myself salary on level 8-900 pounds per month. Rest is pay out in form of dividend, up to the level where the tax is not going above some limit. This is what I did for the last 1,5 year.
In November 2014 I start work in Switzerland. Therefore the local company hired and registered me here as regular employee. So at the same time I start pay local Swiss tax. It didn’t change anything from UK perspective. My English company still brings some monthly income however I stop pay out salary for there.
Now the question is, Do I have to inform HMRC about my additional source of income coming from Swizz job in the tax year 2014/2015 ? If so than how it has to be done ? Do I have to add amount of money after tax or before Swiss taxation ?
Or I don’t have to inform HMRC about income from Switzerland and just make separate tax calculation for UK and Swiss ? which as I believe more benefit for me ?

regards
Karl

Assuming your still resident in the UK, you have to pay tax on your world wide income & capital gains unless your a Non Dom.

You need to pay tax on your gross Swiss income , pension payments can be deducted but not AHV payments. Any Swiss tax can be used to offset UK taxes.
When you fill in a tax return in the UK , you can show the income & taxes paid.

If however you have a full time contract of employment in CH, you are definitely non resident in the UK, you should inform the UK revenue if this is the case.

Wow thank you for quick response !

Yes I am still resident of UK. The work in Switzerland is just temporary.
What does it mean "Non Dom" ?
So basically all taxes which are not AHV I can offset on my UK's tax declaration but at the same time I have to add gross income to the overall calculation ?

regards
Karl

https://www.gov.uk/tax-foreign-incom...iled-residents

just CH taxes can be offset against UK tax, your gross CH income needs to be declared, however 2nd Pillar pension is deductible against income.

You (or your tax preparer or software) fills out SA106 https://www.gov.uk/government/public...-foreign-sa106

There are special rules as to National Insurance contributions when you are resident in one country and work, or partly work, in another
https://www.gov.uk/national-insurance-if-you-go-abroad

On the other hand, social security (state pension) contributions and benefits can be "gamed" with a little knowledge and effort in many cases so that you get additional benefits at little cost.