Tax & rate dataset

Name: TryCalculatingNow tax & rate dataset
Creator: Acsaven
License: https://creativecommons.org/licenses/by/4.0/

Quick answer

7 tax and rate sets across 5 countries, each naming the issuing authority, the exact source page, the date a human last verified it and the date that verification expires. Free to reuse with attribution (CC BY 4.0).

rate sets published

cite an official source

2026-08-03

most recent verification

Most rate pages give you a number and, at best, a vague “last updated”. Every set below names the page the figure came from, the day a person opened that page and confirmed it, and the day that confirmation expires — so you can check any of it yourself rather than taking ours.

Download JSON How it is maintained

The sets

US federal income tax brackets

United States

Marginal rates and bracket thresholds for single, married filing jointly, married filing separately and head of household.

Authority:: Internal Revenue Service (IRS)
Source:: official page
Verified:: 2026-07-24
Recheck by:: 2026-11-15

Used by US federal tax calculator

Canada federal income tax brackets

Canada

Federal marginal rates and bracket thresholds for individuals.

Authority:: Canada Revenue Agency (CRA)
Source:: official page
Verified:: 2026-07-24
Recheck by:: 2026-11-15

Used by Canada tax calculator

India income tax slabs

India

Old and new regime slabs, standard deduction, and the section 87A rebate including the ₹5L cliff in the old regime.

Authority:: Income Tax Department, Government of India
Source:: official page
Verified:: 2026-07-24
Recheck by:: 2027-03-15

Used by Income tax calculator

India GST rates

India

Standard GST rate slabs used for inclusive and exclusive tax calculation.

Authority:: Goods and Services Tax Network (GSTN)
Source:: official page
Verified:: 2026-07-27
Recheck by:: 2026-10-15

Used by GST calculator

UK VAT rates

United Kingdom

Standard, reduced and zero VAT rates.

Authority:: GOV.UK / HM Revenue & Customs
Source:: official page
Verified:: 2026-07-27
Recheck by:: 2026-10-15

Used by VAT calculator

US Consumer Price Index (CPI-U)

United States

Annual CPI-U index values used to convert amounts between years.

Authority:: Bureau of Labor Statistics (BLS), series CUUR0000SA0
Source:: official page
Verified:: 2026-08-03
Recheck by:: 2027-02-15

Used by Inflation calculator

Australia HECS-HELP repayment thresholds

Australia

Income thresholds and repayment rates for HECS-HELP student loans.

Authority:: StudyAssist, Australian Government
Source:: official page
Verified:: 2026-07-24
Recheck by:: 2027-06-01

Used by HECS repayment calculator

Methodology

Figures are read by hand from the issuing authority. Nothing is scraped or inferred.
Verified is the date a person opened the cited page and confirmed the numbers.
Recheck by is when that confirmation expires. The build fails once a set passes it.
A weekly job re-hashes each cited page and flags changes. It never rewrites a figure — a confidently wrong tax bracket is worse than an old one, so a human always reads the change.
Overdue sets are labelled here rather than hidden. Not tax advice, and not official.

Licence & citation

Published under CC BY 4.0. Suggested citation:

TryCalculatingNow, Tax & Rate Dataset, Acsaven. https://trycalculatingnow.com/rate-dataset/

Frequently asked questions

Can I reuse this?

Yes — CC BY 4.0. Use it in an article, a spreadsheet or an app, with attribution to TryCalculatingNow. The rates belong to the issuing authorities; what is offered here is the compilation, the citation and the verification dates.

What makes this different from any other tax-rates page?

The two dates. Most rate pages tell you the number and, at best, a vague "last updated". Every set here names the exact page the figure came from, the date a person opened that page and confirmed it, and the date that confirmation expires. You can check any figure yourself in one click.

What happens when a rate changes?

A weekly job re-hashes each cited source page and flags it when the page changes, and the build fails once a set passes its recheck date. Neither of those edits a figure — a human always reads the change and updates it, because a confidently wrong tax bracket is worse than an old one.

Is this tax advice?

No. It is a compilation with citations, not an authority and not advice. Confirm against the cited source, and speak to a professional for anything that matters.