London salaries can be higher, but factor in rent – it will eat a massive chunk of your income. Berlin's cost of living gives you a lot more breathing room, and the work culture is generally more relaxed (more vacation days are common, and work-life balance is often prioritized). Tax-wise, both countries have similar progressive tax systems, but Germany has slightly higher social security contributions. Consider the bigger picture: career growth, personal enjoyment, and long-term financial goals. If you prioritize aggressive salary growth and don't mind a hectic pace, London might be better. If you value lifestyle and affordability, Berlin is likely the better option.