Consumption Taxes
Broad-based taxes on spending, such as value-added taxes or goods and services taxes, that maintain government revenue even as labor income declines.
What it is:
Consumption taxes are levied on spending rather than on income or wealth. Unlike income or payroll taxes, which require identifying who earned what, consumption taxes are collected at the point of transaction — typically by businesses throughout the supply chain (in the case of VAT) or at the final point of sale. This makes them difficult to evade, since spending is observable and hard to conceal in ways that income and capital gains are not.
If AI reduces employment or compresses wages, income and payroll tax revenues decline but people and firms still spend. Whether consumption is funded by wages, capital income, government transfers, or corporate expenditure, it generates tax revenue at the point of purchase. This makes consumption taxes resilient to shifts in how economic value is produced and distributed, maintaining the fiscal base even in scenarios where labor's share of income falls substantially. Some proposals extend this logic to AI-specific consumption: taxing AI services at the point of use (per query, per token, or per transaction) would create a revenue stream that grows automatically with AI adoption.
The challenge:
The main drawback is regressivity. Because lower-income households spend a larger share of their income on consumption, a flat consumption tax takes proportionally more from those who can least afford it. This can be mitigated through design — exempting essentials like food and medicine or pairing the tax with progressive rebates to offset burdens on lower-income households. Introducing a VAT is a visible and unpopular policy change, even when it replaces less efficient revenue sources. And while consumption taxes are harder to evade than income taxes, the growth of digital and cross-border transactions creates enforcement gaps that require updated infrastructure to address.
Recommended Reading:
Real-world precedents:
According to OECD data, 175 countries operate some form of VAT, which generates on average 20.8% of total tax revenue across OECD nations.
The United States remains the notable exception without a federal VAT, relying instead on state and local sales taxes (approx. 32% of state collections).
To address digital enforcement challenges, the European Union adopted the "VAT in the Digital Age" (ViDA) package in 2025, introducing real-time e-invoicing and platform-based collection rules.