What is a Tax Credit Certificate?

Your Tax Credit Certificate is the Revenue document that shows the credits, rate band and USC details used to calculate your PAYE.

Reviewed against Revenue guidance · Last updated May 2026
Quick answer: A Tax Credit Certificate sets out your tax credits, reliefs, rate band, USC rates and USC rate band for the tax year. You can view it in Revenue myAccount.

What it shows

ItemWhat it means
Tax creditsThe credits that reduce your PAYE income tax.
Rate bandHow much of your income is taxed at the standard rate before the higher rate applies.
USC rates and bandThe USC rates and thresholds Revenue expects payroll to use.
Employment IdentifierA reference set by your employer for that employment.

Source: Revenue — What is a Tax Credit Certificate?

Why it matters

Your employer uses Revenue payroll instructions to calculate tax from your pay. If your credits or rate band are wrong, missing or attached to the wrong job, your PAYE may be too high or too low.

The Tax Credit Certificate is useful because it lets you check what Revenue has on record for the year.

Where to find it

Revenue says you can view, print or download your Tax Credit Certificate in the My Documents folder in myAccount. You select the relevant year folder to find it.

What your employer sees

Your employer is notified of the total credits and payroll instructions they need. Revenue says your employer is not given the full breakdown of your tax credits, only the total amount needed to calculate payroll.

Source: Revenue — How tax credits work

If your payslip suddenly changes, your Tax Credit Certificate is one of the first places to check.