Americas view | Tax in Latin America

Burden sharing

By A.P.

IT IS a report with the driest of titles: “Revenue Statistics in Latin America 1990-2012”. The subject-matter doesn’t sound hugely promising either: an analysis of regional tax takes. But the way in which governments raise revenues from citizens, and the value they deliver in return, could scarcely be more important. And the report, published today by the OECD, the UN Economic Commission for Latin America and the Inter-American Centre of Tax Administrations, illuminates some big shifts over the past 20 years and some of the equally large policy problems that remain.

In aggregate, the region is taking in far more tax revenue now than it did two decades ago: the ratio of tax revenues to GDP has risen from 13.6% in 1990 to 20.7% in 2012. That still leaves the region lagging the OECD average (which stood at 34% in 2011), but such averages disguise some striking variations.

At one end of the scale, Guatemala takes in just 12.3% of GDP in tax revenues. There is no single “optimal” tax burden: much depends on public attitudes to the size of the state, and which services are being provided privately. But that low level of tax intake makes it very difficult to offer basic services like health care, education and security. At the other end of the scale, Argentina and Brazil take in 37.3% and 36.3% of GDP in taxes respectively. This sort of rich-world tax burden inevitably increases the pressure on the state to deliver public services of a correspondingly high quality—and helps to explain public disgruntlement if they do not.

If taking in more tax and spending it well are different things, so are raising tax and doing so equitably. The way Latin America raises its taxes is noticeably different to the OECD’s average tax profile (see chart). Indirect consumption taxes—VAT, export taxes, and so on—account for around 50% of the tax take in the region, compared with a figure of around 30% among OECD members. Taxes on income and social-security contributions make up around 40% of revenues in Latin America, compared with 60% of OECD tax revenues. The sorts of income taxes that the region collects are also different from the members of the rich-world club (Chile and Mexico straddle both groups): corporate-income taxes matter more to Latin America, personal-income taxes more to the OECD.

There are decent reasons for the region’s distinctive tax structure, says Christian Daude of the OECD. Consumption taxes are easier to collect than income taxes, for one thing. The number of people with enough money to pay personal-income tax, given high minimum thresholds, is relatively small. The commodities boom propelled taxes paid by natural-resources companies higher.

But there are drawbacks to this structure, too. Commodities-linked revenues tend to be volatile. And sales taxes are regressive, which matters in a region with such high rates of inequality. According to a World Bank report in 2013, taxes and transfers reduce the Gini coefficient, a measure of inequality that runs from 0 (everyone has the same income) to 1 (one person has all the income), in the OECD countries by 14 points: the Gini score before taxes and transfers stands at 0.45 and drops to 0.31 after the state has grabbed its share. In Latin America, there is virtually no such redistributive impact. Uruguay is the country that reduces the Gini coefficient by most, but only from 0.49 to 0.46.

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