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Foreign income pushing up Belgian taxes (exemption with progression)


Interested to see what's the worst that can happen to my Belgian salary depending on my earnings abroad.

Let's say I earn €30k in Belgium, and my foreign income is high enough to push all of this into the 50% bracket. Is it correct that after deductions (social sec, personal allowance etc) of about €17k I can only have extra taxes applied to the remaining €13,000? I.e. paying €6.5k rather than something like €3.5k.

If that's the case it wouldn't matter if I earn an extra €30 or €80k abroad - the extra tax would be the same...? (Apart from the municipal tax which I think is charged separately).

I know this is over simplified but just to get a general idea.


Yeah - it's way "over simplified" because different types of income can be taxed differently, and you may well be taxed on non-belgian income in the other country and be subject to double-taxation treaties.

I'm not even going to try to speculate here - it's pointless. Ask a specialist (the Belgian tax people for instance)

Jul 27, 2019 15:25

My question only concerns my Belgian income from wages and how heavily it could be taxed.

Jul 27, 2019 22:22

You need to speak to the tax office and/or an accountant.
It depends how you look at it, but your first €30k of income will basically be taxed at same level. But then your extra income will attract the higher rates.

Jul 27, 2019 23:37

"question only concerns my Belgian income from"
You're naive if you think you can get an answer here.

Jul 28, 2019 12:54

Hi Gronman, unfortunately, from what you've written either you haven't explained yourself properly or you have a pretty fundamental misunderstanding of how income taxes work.

It's already been suggested to you here:
and here:
that you either go and see an accountant, or go to your local tax office.

Jul 30, 2019 11:32

Er... thanks for digging through the notice board "Anon" (slow day?) but I do remember my old posts and have followed the advice given to me. The fundamental misunderstanding here doesn't sit with me I'm afraid.

Aug 17, 2019 12:16