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Index/Topics/Tax collection and revenue

Tax collection and revenue

The taxation of Social Security benefits is part of broader tax collections, with some proposals aiming to broaden the tax base to shore up federal revenues.

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Jan 11, 2026
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How much did undocumented immigrants pay in federal income taxes in 2023 or latest year?

Estimates for how much undocumented immigrants paid in federal income taxes in 2023 cluster in a relatively narrow band when researchers disambiguate “federal income” from payroll and other federal ta...

Jan 21, 2026

What are the specific base amounts and thresholds by filing status used in Publication 915 for calculating taxable Social Security benefits?

The ’s Publication 915 uses specific “base amounts” and higher thresholds tied to filing status to decide whether none, up to 50%, or up to 85% of (and equivalent Tier I railroad) benefits are ; the p...