Corrections Log & Data Feedback

We maintain an open, public record of statutory adjustments and algorithmic updates.

Recent Verified Updates

2024-11-15 • United States (Federal) VERIFIED_AND_DEPLOYED

Adjusted standard deduction and tax bracket thresholds for single filers to match IRS 2024 inflation adjustments.

Source: IRS Rev. Proc. 2023-34 / IRS Newsroom

2024-07-01 • Australia VERIFIED_AND_DEPLOYED

Implemented Australian Stage 3 revised personal income tax rate schedules effective July 1, 2024.

Source: ATO Treasury Laws Amendment Act 2024

2024-04-06 • United Kingdom VERIFIED_AND_DEPLOYED

Updated Class 1 National Insurance employee primary contribution rate to 8% following Chancellor Spring Budget enactment.

Source: HMRC National Insurance Guidelines 2024/25

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Users can report outdated tax brackets or living benchmarks through the interactive "Report Data Correction" modal available on all calculator and guide pages.