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Australian Tax Gap Estimates by Tax Type

Name: Australian Tax Gap Estimates by Tax Type
Creator: Australian Taxation Office
License: https://creativecommons.org/licenses/by/3.0/au/

ATO's official estimates of the "tax gap" - the dollar difference between what each tax should have collected (if all taxpayers complied perfectly) and what was actually collected. Headline figures by tax type (personal income, corporate, GST, excise) across multiple financial ye

Source: Australian Taxation Office · Licensed CC-BY 3.0 AU · dataset id ato.TAX_GAPS

Get this dataset

curl -H 'Authorization: Bearer ak_your_key' \
  https://api.ausdata.io/v1/data/ato/TAX_GAPS

Returns JSON with the original Australian Taxation Office attribution on every response. Add ?format=csv for CSV, ?start=YYYY-MM to return rows from a period forward, or ?limit=1000 to fetch more than the default page.

Free tier: 500 calls a month, no card. Get a key, browse all Australian Taxation Office datasets, or read the docs.