Why the 2027 BIK reforms are an HR and reward issue, not just a payroll one

From April 2027, mandatory payrolling of benefits in kind (BIK) becomes law. Most of the debate has centred on payroll, but this article is for HR and reward leaders.

Many teams are already well-prepared, but for others the remaining workload is considerable. There are new reporting requirements, new data flows, a phased rollout beginning with company cars, vans, and medical benefits, with the majority following in 2028. Alongside that, there's a separate challenge that's receiving far less attention: what this change means for employees, and by extension, for HR and reward leaders.

And employees will notice. In the first year of transition, many will find themselves effectively taxed twice - still clearing arrears on last year's benefits under the old system, while new monthly deductions for this year's benefits start appearing under the new one. That double hit is the real reason take-home pay will look lower.

The payroll mechanics unfold on a phased timeline, but the employee experience doesn’t. That starts the moment the first deduction appears on a payslip.

The deduction nobody used to notice

Under the current system, tax on employee benefits is handled through a tax code adjustment and collected retrospectively, largely out of sight. From April 2027, the cost lands directly on the payslip: a named deduction, every month, sitting just below the salary. That shift matters, because once something is visible, it gets noticed.

For benefits with an obvious value, a company car, for instance, employees are unlikely to be caught off guard. The trade-off is self-evident. But even benefits people actively want, such as private medical insurance, can start to feel like a burden once a monthly figure appears against them.

Scale that reaction across a whole workforce, and a benefits package you've invested years in building could become one people start walking away from, simply because the cost is now in plain sight.

The consequences, and why they land on HR and reward

The tax mechanics, cash flow questions, and compliance risk are for payroll and finance to manage. What falls to HR and reward is subtler, and harder to undo.

1. Perception shifts, even when nothing else does
2. Total reward statements stop being optional

The benefit itself hasn't changed. Its value hasn't changed. But the employee's experience of it has shifted entirely, from something invisible to something visible, from something abstract to something that comes out of their pay every month. A tax liability that once felt remote now feels immediate, especially at a time when many households are already under financial pressure. That change in perception is yours to manage, and the clock starts with the first payslip.

When employees can see clearly that their benefits add thousands to their overall package, a modest monthly deduction is easy to absorb. When they can't, it simply feels like a pay cut with no explanation. That gap in understanding isn't new, only 44% of employees say they fully understand all elements of their reward package (GRiD) but from April 2027, visible deductions will make it much harder to paper over.

Here's what you can do now

Final HMRC specifications aren't expected until later in 2026 but that's not a signal to hold off, it's precisely the reason to move now, while there's still room to get ahead of this rather than scramble to catch up.

1. Find the inconsistencies in your benefits data. Benefits information typically lives across several systems, HR platforms, third-party providers, spreadsheets, and most organisations haven't checked whether they all tell the same story. From April 2027, whatever payroll submits is the official record. Locate the gaps and close them before that date arrives.
2. Work out which benefits are about to become visible and whether they're ready for that scrutiny. Rank your benefits by the size of the incoming deduction and how well employees currently understand what they're getting. The ones with strong awareness and genuine take-up will weather the change. The ones without are the ones to rethink, relaunch, or remove before employees make that decision themselves.
3. Get a total reward statement in front of every employee. This is the most important step on this list. If you don't have one yet, the time to build it is now. If you do, ask honestly whether anyone is actually reading it.
4. Brief your managers. The question "why has my pay gone down?" will reach line managers long before it gets to HR. A concise FAQ and a 30-minute session is all it takes to give them a confident, accurate answer, and to stop one confused conversation from becoming a widespread loss of trust in your benefits scheme. Because the rollout is phased, deductions will appear at different times for different people. Managers need to know what's coming in April 2027, what follows in 2028, and what sits outside mandatory payrolling altogether for now, such as employer-provided loans and accommodation.
5. Make sure HR and reward has a voice in the payroll conversation. The systems integration belongs with payroll and IT. But HR and reward leaders need to be at the table. You understand which benefits are affected and how people will respond. Leave that conversation to others, and the employee experience will be bolted on as an afterthought.

The choice in front of HR and reward leaders

Every organisation will go through this. The ones that aren't ready will find a payroll change turning into an employee relations headache, people confused by deductions they weren't expecting, worried about their pay, and disengaging from benefits they'd otherwise value.

The ones that prepare will already have the story told. Employees will know what they're receiving, understand why it matters, and feel confident the organisation is looking after them.

That difference isn't made in April 2027. It's made now.

Don't let the first payslip be the story

FlexGenius helps HR and reward teams communicate the real value of their benefits package before, during and after the April 2027 transition. Our employee communications toolkit includes total reward statements, giving employees a personalised view of salary, pension, benefits and bonuses, pulled straight from your platform data. Statements update in real time or in periodic snapshots, carry your branding, and use ready-made charts that make the numbers easy to take in at a glance. With mobile-friendly access, employees can check their statement anywhere, at any time.

See how total reward statements can help your people understand their full package, or contact us to find out more.

For further information, please email enquiries@avantus.co.uk or call 0800 652 4745