Plenty of “ordinary” taxpayers have complexities too: self-employment, multiple jobs, freelance work, rental income, childcare credits, student loan repayments, pension contributions, benefits that interact with tax thresholds… the list goes on.
We still manage to collect from them, despite those complications, because it’s seen as necessary. That’s the key difference: with ordinary earners, we work around the complexity; with the ultra-wealthy, complexity too often becomes the excuse to walk away.
Having said that, I completely agree that we can’t ignore the complexities – we should be throwing more effort and resources at this.
This is arguably one of the defining questions of our time: how do we ensure the wealthiest contribute fairly in a globalised, loophole-ridden financial system? It’s no less important than tackling climate change – and, as with climate change, the scale of the challenge should be the reason we act, not the excuse we don’t.
Plenty of other countries have made a start on this. Norway, Switzerland, France, Spain, Canada, and even parts of the US manage to tax wealth, capital gains, and cross-border income without the sky falling in. The EU has frameworks for sharing financial data precisely so tax authorities can follow the money.
We already pour time, money, and political capital into problems we decide matter. We need to treat fair taxation with the same seriousness.