Economic Impact of Sugar-Sweetened Beverage Taxation

Sugar-sweetened beverage (SSB) taxation has emerged as a policy lever to curb excess sugar intake, reduce non-communicable disease burdens and raise public revenues. By imposing excise duties at the manufacturer or distributor level, governments aim to increase retail prices, discourage consumption and prompt industry reformulation. Economic evaluations draw on demand-system models and natural experiments to assess consumer responses, industry pricing strategies and welfare implications. Evidence indicates that a portion of the tax is passed through to consumers, inducing reductions in SSB purchases, while prompting shifts towards untaxed or lower-sugar alternatives. Revenues generated are often earmarked for health promotion or educational programmes, creating potential co-benefits for public health. Analyses of distributional effects highlight concerns about regressivity, but also show that lower-income households may experience proportionally greater health gains. Macro- and micro-economic modelling suggests that SSB taxes can yield cost savings for health systems, stimulate product innovation and contribute to broader dietary improvements when integrated with complementary interventions.

Research from Nature Portfolio

Recent studies have applied systems-thinking frameworks to evaluate the multifaceted impacts of SSB taxation. A systematic scoping review identified over 300 tax-related studies, of which a subset jointly analysed policy influences and outcomes. Only a few explicitly adopted system-informed methods, yet these revealed feedback loops linking consumer behaviour, industry reformulation and political dynamics. Building on these insights, researchers developed a feedback-oriented conceptual framework that maps how taxation may be increased, maintained, eroded or repealed over time. Such a model emphasises the interdependence of health, economic and governance factors, offering a roadmap for synthesising disparate evaluation findings and generating novel policy questions.

Economic Impact of Sugar-Sweetened Beverage Taxation publication trend

The graph below shows the total number of articles in economic impact of sugar-sweetened beverage taxation across all publications each year (not limited to Nature Index journals).

Technical terms

Excise tax: A levy imposed on the quantity of a specific product at the manufacturer or distributor level, intended to raise consumer prices and discourage consumption.

Price elasticity of demand: A measure of how sensitively consumers adjust their purchase volume in response to changes in a product’s price.

Tax pass-through: The extent to which an imposed tax is reflected in the final retail price paid by consumers.

Cross-price elasticity of demand: A measure of how the change in price of one good affects the demand for another, indicating substitution or complementarity effects.

References

1. A systematic scoping review evaluating sugar-sweetened beverage taxation from a systems perspective. Nature Food (2023).
2. Changes in prices, sales, consumer spending, and beverage consumption one year after a tax on sugar-sweetened beverages in Berkeley, California, US: A before-and-after study. PLOS Medicine (2017).
3. Impact of the announcement and implementation of the UK Soft Drinks Industry Levy on sugar content, price, product size and number of available soft drinks in the UK, 2015-19: A controlled interrupted time series analysis. PLOS Medicine (2020).
4. A New Wave of Sugar-Sweetened Beverage Taxes: Are They Meeting Policy Goals and Can We Do Better?. Annual Review of Resource Economics (2023).