For most UK employers, the Autumn Budget did not arrive with a single dramatic headline tax rise. There was no sudden increase in employer National Insurance rates. No overt new payroll levy. No explicit announcement that employment would become permanently more expensive.<\/p>\n\n\n\n
And yet, beneath the surface, the structural cost of employing people in the UK has now been quietly reset.<\/p>\n\n\n\n
Over the next six years, a combination of policy decisions will steadily and materially increase the cost base of people led businesses. This will happen even if firms do not grow headcount, do not expand internationally and do not materially change their service mix.<\/p>\n\n\n\n
For accounting firms and professional services businesses in particular, this matters more than most.<\/p>\n\n\n
The Autumn Budget has effectively pulled three long term levers at once.<\/p>\n\n\n\n
From April 2026, the minimum wage steps up again. While many accounting firms are not minimum wage heavy, the impact does not stop at entry level roles.<\/p>\n\n\n\n
Higher wage floors push up junior salaries, which then forces compression pressure through supervisors, managers and team leaders. Pay bands reprice upward to maintain differentials. This cascades quietly across the workforce.<\/p>\n\n\n\n
The result is that average salaries rise faster than headline inflation alone would suggest.<\/p>\n\n\n\n
Tax and National Insurance thresholds are now frozen until 2031.<\/p>\n\n\n\n
This is a classic example of fiscal drag. Each pay rise pushes more income into NIable bands without any change in the rate itself. From an employer perspective, this creates a hidden annual cost increase that compounds over time.<\/p>\n\n\n\n
It is a silent tax rise on employment that does not show up in any single Budget headline.<\/p>\n\n\n\n
From April 2029, only the first two thousand pounds of pension contributions via salary sacrifice will avoid employer National Insurance. Anything above that will attract NI at 13.8 percent.<\/p>\n\n\n\n
For firms with higher pension generosity, particularly at manager and partner level, this introduces a new permanent layer of payroll tax into the cost base.<\/p>\n\n\n\n
To understand the practical impact, we recently modelled a typical UK accounting or professional services firm with the following profile:<\/p>\n\n\n\n
The position today<\/strong><\/p>\n\n\n\n What happens by 2031<\/strong><\/p>\n\n\n\n Now layer in the Budget effects:<\/strong><\/p>\n\n\n\n By 2031 this produces:<\/strong><\/p>\n\n\n\n That is an increase of around \u00a3660,000 per year<\/strong> on the same team doing the same work, with no headcount growth and no productivity uplift.<\/p>\n\n\n\n This is why we now reference a realistic range of:<\/p>\n\n\n\n \u00a3500,000 to \u00a3700,000 per year of additional employment cost by 2031 for a typical mid-sized firm.<\/p>\n\n\n\n Senior heavy firms with higher pension contributions can exceed this materially.<\/p>\n\n\n\n\n
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