Netherlands and Belgium are two of the countries people most often shortlist together when moving to the EU. Below is an honest side-by-side on the things that shape daily life, with the stronger country marked on each row. On these measures Netherlands comes out ahead on 8, Belgium on 2.
Rent is the clearest split: a one-bed runs about EUR 1,500 a month in Netherlands against EUR 950 in Belgium, so Belgium saves you roughly EUR 550 every month.
Typical net pay is EUR 2,700 a month in Netherlands and EUR 2,300 in Belgium, putting Netherlands EUR 400 ahead before anything else is counted.
What actually matters is the money left after rent: EUR 1,200 in Netherlands against EUR 1,350 in Belgium, which is where Belgium pulls ahead.
You will get further on English alone in Netherlands than in Belgium, which matters most in the first year, before the local language clicks.