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what is asc on payslip

ASC on a payslip usually stands for Additional Superannuation Contribution – a compulsory pension‑related deduction, most commonly seen for public sector employees in Ireland.

Quick Scoop: What is ASC on a payslip?

Think of ASC as an extra pension charge taken from your pensionable pay, on top of any normal pension contribution you might already be paying.

  • It stands for Additional Superannuation Contribution.
  • It applies mainly to public service workers who have a public service pension entitlement (for example, civil service, health service, education, local authorities).
  • It replaced the old Pension Related Deduction (PRD) from 1 January 2019.
  • It appears on your payslip in the deductions section, usually as “ASC”.

In simple terms: it’s money taken from your gross salary that goes towards funding your public service pension scheme, calculated under specific bands and rules set out in law.

How ASC shows on a payslip

On your payslip, ASC is normally listed as its own line item under deductions, separate from tax, PRSI, USC, and standard pension contributions.

Typical layout might look like:

  • Basic Pay
  • Pensionable Allowances
  • Gross Pay
  • Deductions:
    • Income Tax
    • PRSI
    • USC
    • Pension
    • ASC (Additional Superannuation Contribution)

Employers’ payroll systems (for example BrightPay, Thesaurus, Sage) are specifically set up so that ASC is clearly labelled and not merged into any other deduction.

Who pays ASC and on what?

ASC is not for everyone; it targets a specific group:

  • You generally pay ASC if:
    • You are a public service employee.
* You are a member of a **public service pension scheme** , or receive pension‑in‑lieu type benefits.
  • You do not usually pay ASC if:
    • You are a public service pensioner (already retired and in receipt of pension).
* You are in a purely **non‑pensionable** post with no public service pension entitlement.

It applies only to pensionable remuneration – things like basic pay and pensionable allowances – not non‑pensionable overtime or non‑pensionable allowances.

How the ASC amount is worked out (bands and rates)

The exact amount of ASC taken from your pay depends on:

  • Your pension scheme type :
    • Standard accrual scheme
    • Fast accrual scheme
    • Single Public Service Pension Scheme
  • Your pensionable income level , with thresholds and percentage rates.

For example, for some standard accrual schemes, ASC has:

  • A lower band exempt (no ASC up to a certain income level).
  • A middle band charged at a percentage (for example around 10%).
  • A higher band charged at a slightly higher percentage over a higher threshold (for example around 10.5%).

If you work for more than one public service body, the system can look at your combined pensionable pay to decide the ASC you owe overall.

ASC vs. “normal” pension contributions

You can think of ASC as a separate layer on top of usual pension contributions:

  • Normal pension contribution :
    • Often a fixed percentage you personally pay into your pension scheme.
    • Shown as “Pension” or similar on the payslip.
  • ASC (Additional Superannuation Contribution) :
    • A statutory (law‑based) deduction for public service pensions.
    • Calculated using thresholds and bands rather than a single flat rate.
* Shown separately as “ASC”.

ASC is treated as an allowable deduction for income tax , so you get tax relief at your marginal rate (similar in spirit to other pension contributions).

Forum & “trending” context

In recent years, ASC has been a recurring talking point in Irish forums, especially among teachers, health workers, and civil servants who see a significant slice of pay going under this label.

Common themes people discuss include:

  • Confusion over why ASC appears in addition to pension contributions.
  • Questions about refunds of overpaid ASC when changing jobs or having multiple public service roles.
  • Clarifications on filling out official ASC forms or employment declarations linked from government and payroll emails.

You’ll often see posts where someone shares a payslip or an email from HR/payroll and asks:

“What is this ASC thing and why is it taking so much from my pay?”

The answer almost always links back to the Additional Superannuation Contribution rules for public servants introduced after PRD ended.

Quick checklist: If you see “ASC” on your payslip

If ASC has appeared on your payslip and you’re wondering what to do:

  1. Confirm your sector
    • Are you a public service employee with a pension scheme? If yes, ASC is expected.
  1. Check the description
    • Look for “ASC” in the deductions section; it should be clearly named as a separate line.
  1. Ask payroll or HR
    • They can confirm:
      • Which pension scheme you are in.
      • What thresholds/rates they’re applying.
      • Whether your multiple employments (if any) are being combined correctly for ASC.
  1. Review government guidance
    • Public Service Pensions guidance explains ASC rules, rates, forms, and when refunds may be possible.

TL;DR

  • “ASC” on a payslip = Additional Superannuation Contribution.
  • It’s a statutory pension‑related deduction mainly for Irish public service employees with a public service pension.
  • It’s shown as a separate deduction line on the payslip and is calculated on pensionable pay using income bands and rates set in legislation.

Bottom note: Information gathered from public forums or data available on the internet and portrayed here.