Sources

We only use primary sources: the tax authority or government department that sets each rate. Each figure was checked digit by digit against the live page on the date shown.

United Kingdom, 2026/27

Last checked 19 October 2026.

What	Official page
Personal allowance and taper	gov.uk/income-tax-rates
Income tax bands	gov.uk/income-tax-rates
Scottish income tax bands	gov.uk/scottish-income-tax
National Insurance thresholds and rates	gov.uk/guidance/rates-and-thresholds-for-employers-2026-to-2027
Student and postgraduate loan thresholds	gov.uk/guidance/rates-and-thresholds-for-employers-2026-to-2027
Workplace pension qualifying earnings	gov.uk/workplace-pensions/what-you-your-employer-and-the-government-pay
Blind Person's Allowance	gov.uk/blind-persons-allowance
Marriage Allowance	gov.uk/marriage-allowance

Australia, 2026–27

Last checked 19 October 2026.

What	Official page
Resident tax rates	ato.gov.au/tax-rates-and-codes/tax-rates-australian-residents
Foreign resident tax rates	ato.gov.au/tax-rates-and-codes/tax-rates-foreign-residents
Working holiday maker tax rates	ato.gov.au/tax-rates-and-codes/tax-rates-working-holiday-makers
Low income tax offset	ato.gov.au/individuals-and-families/income-deductions-offsets-and-records/tax-offsets/low-income-tax-offset
Medicare levy low-income thresholds	ato.gov.au/individuals-and-families/medicare-and-private-health-insurance/medicare-levy/medicare-levy-reduction/medicare-levy-reduction-for-low-income-earners
Medicare levy surcharge	ato.gov.au/individuals-and-families/medicare-and-private-health-insurance/medicare-levy-surcharge/medicare-levy-surcharge-income-thresholds-and-rates
HELP / study loan repayment thresholds	ato.gov.au/tax-rates-and-codes/study-and-training-support-loans-rates-and-repayment-thresholds
Super guarantee rate and maximum contribution base	ato.gov.au/tax-rates-and-codes/key-superannuation-rates-and-thresholds/super-guarantee
PAYG withholding: Schedule 1 coefficients	ato.gov.au/tax-rates-and-codes/payg-withholding-schedule-1-statement-of-formulas-for-calculating-amounts-to-be-withheld/coefficients-to-use-in-formulas-for-withholding-from-weekly-payments
PAYG withholding: Schedule 8 study loan component	ato.gov.au/tax-rates-and-codes/schedule-8-statement-of-formulas-for-calculating-study-and-training-support-loans-components
PAYG withholding: Schedule 15 working holiday makers	ato.gov.au/tax-rates-and-codes/schedule-15-tax-table-for-working-holiday-makers
Standard deduction for work-related expenses	ato.gov.au/individuals-and-families/income-deductions-offsets-and-records/deductions-you-can-claim/work-related-deductions/standard-deduction-for-work-related-expenses

New Zealand, 2026–27

Last checked 19 October 2026.

What	Official page
Income tax rates	ird.govt.nz/income-tax/income-tax-for-individuals/tax-codes-and-tax-rates-for-individuals/tax-rates-for-individuals
Payroll calculations and business rules specification	ird.govt.nz/digital-service-providers/services-catalogue/returns-and-information/payday-filing/payroll-calculations-and-business-rules
PAYE deduction tables IR340/IR341	ird.govt.nz/-/media/project/ir/home/documents/forms-and-guides/ir300---ir399/ir340/ir340-apr-2026.pdf
ACC earners' levy	ird.govt.nz/income-tax/income-tax-for-individuals/acc-clients-and-carers/acc-earners-levy-rates
Independent earner tax credit	ird.govt.nz/income-tax/income-tax-for-individuals/individual-tax-credits/independent-earner-tax-credit-ietc
Student loan repayment threshold	ird.govt.nz/student-loans/living-in-new-zealand-with-a-student-loan/repaying-my-student-loan-when-i-earn-salary-or-wages
KiwiSaver contribution rates	ird.govt.nz/kiwisaver-changes

Ireland, 2026

Last checked 19 October 2026.

What	Official page
Income tax bands	revenue.ie/en/personal-tax-credits-reliefs-and-exemptions/tax-relief-charts/index.aspx
Tax credits	revenue.ie/en/jobs-and-pensions/calculating-your-income-tax/tax-credits.aspx
Universal Social Charge	revenue.ie/en/jobs-and-pensions/usc/standard-rates-thresholds.aspx
USC reduced rates	revenue.ie/en/jobs-and-pensions/usc/reduced-rates.aspx
PRSI Class A (SW14)	assets.gov.ie/static/documents/cb168977/PRSI_C20260116_Contribution_Rates_and_User_Guide_-_SW_14_-_English_Version_-_January_2026_.pdf-web.pdf
Workplace pension qualifying earnings	revenue.ie/en/tax-professionals/tdm/income-tax-capital-gains-tax-corporation-tax/part-42/42-04-35a.pdf
Auto-enrolment (MyFutureFund)	gov.ie/en/department-of-social-protection/publications/auto-enrolment-retirement-savings-system-for-employees/

Canada, 2026

Last checked 19 October 2026.

What	Official page
Federal and provincial tax rates	canada.ca/en/revenue-agency/services/tax/individuals/tax-rates-brackets/current-year.html
T4127 Payroll Deductions Formulas	canada.ca/en/revenue-agency/services/forms-publications/payroll/t4127-payroll-deductions-formulas.html
CPP contribution rates	canada.ca/en/revenue-agency/services/tax/businesses/topics/payroll/payroll-deductions-contributions/canada-pension-plan-cpp/cpp-contribution-rates-maximums.html
CPP2 rates	canada.ca/en/revenue-agency/services/tax/businesses/topics/payroll/calculating-deductions/making-deductions/second-additional-cpp-contribution-rates-maximums.html
EI premium rates	canada.ca/en/revenue-agency/services/tax/businesses/topics/payroll/payroll-deductions-contributions/employment-insurance-ei/ei-premium-rates-maximums.html
Payroll Deductions Online Calculator (test reference)	canada.ca/en/revenue-agency/services/e-services/digital-services-businesses/payroll-deductions-online-calculator.html
Ontario LIFT credit	ontario.ca/page/low-income-individuals-and-families-tax-credit
Alberta personal income tax	alberta.ca/personal-income-tax

Earnings statistics and exchange rates

What	Source
UK median gross annual earnings for full-time employees (April 2025)	ONS Annual Survey of Hours and Earnings 2025 (provisional)
Australian average weekly ordinary time earnings for full-time adults (seasonally adjusted), × 52 (May 2026)	ABS Average Weekly Earnings, Australia
New Zealand median weekly earnings from wages and salaries, × 52 (June 2026 quarter)	Stats NZ, Labour market statistics (income): June 2026 quarter
Ireland median gross weekly earnings (per employment, including part-time), × 52 (2025)	CSO, Earnings Analysis using Administrative Data Sources 2025
Exchange rates for comparisons (16 October 2026)	European Central Bank euro foreign exchange reference rates

WagePrism is independent and not affiliated with any of these bodies.