Pension Accounting CPD — IAS 19 and UK Pension Training 2026

IAS 19 Employee Benefits governs how a business accounts for what it owes its people — from salaries and paid leave to pensions. Most of it is straightforward, but post-employment benefits, and pensions in particular, are where it gets genuinely demanding. The single most important distinction is between defined contribution and defined benefit plans, because they're accounted for in completely different ways. This guide explains that split, the three components of defined benefit cost, and why pension accounting is so judgemental. For structured learning, see our financial reporting CPD.

What does IAS 19 cover?

IAS 19 applies to all forms of employee benefit: short-term benefits (salaries, wages, paid annual leave, bonuses settled within 12 months), post-employment benefits (pensions and other retirement benefits), other long-term benefits, and termination benefits. Short-term benefits are simple — recognised as an expense as the employee provides service. The complexity sits almost entirely in post-employment plans, which fall into two very different categories.

Defined contribution plans

In a defined contribution (DC) plan, the employer pays fixed contributions into a separate fund and has no further obligation once they're paid. The eventual pension depends on those contributions and the investment returns on them — so the employee, not the employer, bears the investment risk. The accounting is simple: the expense each period is the contribution payable for that period. There's no actuarial estimation and no plan asset or liability to measure beyond any unpaid contributions.

Defined benefit plans

A defined benefit (DB) plan is the opposite. The employer promises a defined level of benefit — often based on salary and years of service — and is on the hook to deliver it regardless of how the plan's investments perform. Here the employer bears the risk, and the accounting is far more involved. The business recognises a net defined benefit liability (or asset), calculated as the present value of the defined benefit obligation less the fair value of the plan assets (subject to an "asset ceiling" that limits any surplus recognised). The obligation is measured using the projected unit credit method and discounted using a high-quality corporate bond rate.

The three components of defined benefit cost

Changes in the net defined benefit liability are split into three parts, and where each is reported matters:

• Service cost — current service cost, any past service cost, and gains or losses on settlements. Recognised in profit or loss.
• Net interest on the net defined benefit liability or asset — effectively unwinding the discount. Also recognised in profit or loss.
• Remeasurements — actuarial gains and losses on the obligation, the return on plan assets above the amount in net interest, and changes in the asset ceiling effect. Recognised in other comprehensive income (OCI), and importantly never reclassified to profit or loss.

Putting remeasurements in OCI keeps the often-volatile actuarial swings out of profit or loss, while still reflecting the full plan surplus or deficit on the balance sheet.

Why defined benefit accounting is so hard

The difficulty is the actuarial estimation. Measuring the obligation depends on assumptions about the discount rate, future salary growth, inflation, mortality and more — and small changes in those assumptions can move the liability significantly. The numbers are large, volatile and heavily reliant on specialist input, which is a big part of why so many employers have closed defined benefit schemes to new members in favour of defined contribution arrangements.

Other employee benefits

Beyond pensions, IAS 19 also deals with short-term benefits (recognised as the employee earns them, including the cost of accumulating paid leave) and termination benefits, which are recognised when the entity can no longer withdraw the offer or when related restructuring costs are recognised. These are generally far simpler than defined benefit pensions but are part of the same standard.

Frequently asked questions

What's the difference between defined contribution and defined benefit?

In a defined contribution plan the employer pays fixed contributions and has no further obligation, so the employee bears the investment risk. In a defined benefit plan the employer promises a set benefit and bears the risk of delivering it.

Where are actuarial gains and losses recognised?

In other comprehensive income, as part of remeasurements. They are not reclassified to profit or loss in later periods.

How is a defined contribution expense measured?

Simply as the contributions payable for the period — there's no actuarial measurement.

What are the components of defined benefit cost?

Service cost and net interest (both in profit or loss), and remeasurements (in OCI).

Master employee benefits with Learnsignal

IAS 19 rewards a clear grasp of the DC/DB split and where each cost lands. Learnsignal's financial reporting CPD helps finance professionals get to grips with pensions and the wider standards, with flexible, expert-led learning that fits around work.

What does IAS 19 cover?

IAS 19, Employee Benefits, sets out the accounting for various employee benefits, including pensions and other post-employment benefits. It addresses how organisations recognise and measure the cost of these benefits and the related obligations, which can be complex, particularly for defined-benefit schemes. Always refer to the current standard for the detail.