Employer pension contributions: the company expense most directors leave alone

If you take money as a dividend and then pay it into a pension yourself, the profit has already been taxed in the company and you have paid dividend tax on the way out. The pension provider adds basic rate relief and you claim the rest through your tax return, which helps, but the money has been through two hands before it lands.

When the company pays the contribution directly, it is treated as a business cost. It reduces the taxable profit for the year, there is no employer or employee National Insurance on it, and nothing appears on your personal tax return as income. HMRC expects the contribution to be a reasonable part of your overall reward for working in the business, which for a working director drawing a modest salary is rarely a difficult argument.

One line worth being clear about: we handle the tax and payroll side of this. Which pension you hold and where the money is invested is a regulated matter for an authorised adviser, and we do not give that advice. What we tell you is what the contribution does to your corporation tax bill and how it fits with the way you pay yourself.

There is a ceiling. Employer contributions count towards the same annual allowance as your own, and going over it creates a personal tax charge that wipes out the point of the exercise. Three things usually move the number:

• Unused allowance from the previous three tax years can often be carried forward, which is how a company with a good year can put in far more than one year’s worth.
• The allowance tapers once your total income passes a set threshold, so the higher your drawings, the less room there is.
• If you have already taken taxable money out of a pension flexibly, a much lower limit applies and carry forward is off the table.

We check the position before a contribution is made rather than after, because an excess charge is the kind of thing that only surfaces at the following year’s tax return when it is too late to reverse.

The other point worth knowing: a company contribution reduces your adjusted net income as well as the company’s profit. That matters if you sit near the band where the personal allowance tapers away or where the child benefit charge bites.

The moment you put someone on the payroll who meets the age and earnings test, auto-enrolment applies and the choice disappears. The statutory minimum is 3 per cent from the employer and 5 per cent from the employee, calculated on qualifying earnings, with a scheme that accepts everyone and does not ask staff to pick investments.

The Pensions Regulator is not relaxed about late or missed contributions. Enforcement runs from a compliance notice through a fixed penalty of £400 and on to daily escalating penalties, and that is before the backdating. If contributions were missed, you are expected to pay the employer share back to the day the employee first qualified, and the regulator can require you to cover the employee share too.

In practice the failures we see are administrative rather than deliberate: a new starter not assessed, a scheme set up but the declaration of compliance never filed, or payroll and the provider drifting out of step after a software change. None of it is complicated, it just needs doing every pay run. That is what our payroll and auto-enrolment work covers.

Salary sacrifice has been the standard way to make employee contributions more efficient. The employee gives up salary, the company pays the amount into the pension as an employer contribution, and both sides save National Insurance on the sacrificed pay.

That changes. From April 2029, only the first £2,000 of employee pension contributions made through salary sacrifice each year will be free of National Insurance. Anything above that is still allowed and still free of income tax within the usual limits, but both the employer and the employee will pay National Insurance on the excess. Employers will report the total sacrificed through existing payroll software, and HMRC has said more guidance will follow before the date.

Two things to take from this. First, most employees paying ordinary contributions will not notice. Second, and this is the part directors should register, contributions made by the company in its own right stay free of National Insurance entirely. The cap applies to salary given up by the employee, not to what the employer puts in. For an owner-managed company, that strengthens the case for the company paying directly rather than running a sacrifice arrangement for the director.

A company contribution is deductible in the accounting period it is actually paid, not the period it is accrued or intended. A payment made two weeks after the year end lands in the following year’s corporation tax computation, which is fine if that was the plan and expensive if it was not.

So the conversation has to happen while the year is still open and while the profit figure is roughly known. That means management accounts, or at least clean bookkeeping, by month ten or eleven. Deciding in month fourteen, when the accounts are being drafted, is deciding about last year’s money with this year’s cash.

We tend to look at this alongside the rest of the reward package rather than on its own: salary level, dividend timing, whether a spouse genuinely works in the business, and whether the employment allowance is in reach. The pension is usually the largest single lever, and it is the one that needs a bank payment before a date rather than a tick in a box afterwards.