The Admin Tax Index 2026: Hours Lost Per Week by Role Across UK Industry

Every operator I work with knows admin is eating their week. Almost none can price it.

The hours data exists, scattered across survey reports nobody reads end to end. The pay data exists, in one government dataset. Nobody had put the two together role by role, so I did.

This is the Admin Tax Index 2026, version 1 — six roles common to UK manufacturers, distributors and field operations: field sales rep, field service engineer, operations manager, HGV driver, site manager, finance clerk. For each: hours per week lost to admin, median UK pay cross-checked against the Annual Survey of Hours and Earnings, and a derived annual cost. I will re-run it annually on the same method so v2 is comparable.

Two ground rules. Every hours and pay figure is measured, published by somebody else, and linked. Every pound figure is my own arithmetic — derived, not measured. And two of the six roles have no reliable published figure for admin hours. I have not invented one, and what I did instead turns out to be the most useful thing here.

The dataset

If you quote the index, quote this too.

Pay — one source, no substitutes. Every salary figure comes from the ONS Annual Survey of Hours and Earnings, 2025 provisional, Table 14 (occupation by four-digit SOC 2020), released 23 October 2025 (ONS) — Full-Time sheet, 14.7a for annual gross pay and 14.9a for total paid hours. ASHE is employer-returned from a 1% sample of PAYE records. Full-time job counts run 97,000 to 406,000 per occupation.

Paid hours matter as much as pay: a production manager's median week is 37.5 hours, an HGV driver's 47.9. Convert at a flat 37.5 for everyone and you understate the driver by more than a quarter. I used each occupation's own median.

Hours — four sources, all with disclosed methodology.

Ricoh / Opinion Matters, 16 April 2026 (Ricoh UK): 1,800 decision-makers in HR, finance or facilities, split equally, 300 per market across six European markets, in field 10–17 November 2025, plus 6,000 office workers across the same markets. Fieldwork by Opinion Matters, a Market Research Society and British Polling Council member. The only UK-specific headline here.

Salesforce State of Sales, 7th edition (PDF): 4,050 sales professionals across 22 countries, fieldwork August–September 2025. Page 36 discloses a UK sample of 250, manufacturing a named segment.

Salesforce field service research, 9 April 2025 (newsroom): 350 technicians and tradespeople in the United States, fieldwork 22 February – 6 March 2025.

FMI / PlanGrid, Construction Disconnected (PDF): 599 construction leaders — 500 US, 99 across Australia, New Zealand, the UK and Canada combined — April 2018. The oldest and weakest source here, and the only one broken out by role.

Cross-checks. The RHA Pay Report 2026, survey November 2025 (PDF), for driver pay. Ardent Partners, The State of ePayables 2025 (PDF), June 2025, n=204 AP and finance leaders, March–May 2025, 58% North America / 31% EMEA / 11% Asia-Pacific.

Policy inputs. Employer secondary Class 1 NIC at 15% above a £5,000 threshold for 2026-27 (HMRC, 5 June 2026); minimum employer pension of 3% on qualifying earnings of £6,240 to £50,270 (GOV.UK); statutory paid holiday of 5.6 weeks (GOV.UK), which is where 46.4 working weeks comes from.

The formula

Step 1 — hours. Published admin share of the week × that occupation's ASHE median total paid hours per week.

Step 2 — employment cost. ASHE median gross annual pay + employer NIC at 15% above £5,000 + employer pension at 3% of qualifying earnings. Across the six roles this uplift lands between 15.0% and 16.0%, so a 16% rule of thumb is within a percentage point everywhere.

Step 3 — the admin tax. Employment cost × admin share of the paid week. Building it as a share of pay rather than an hourly rate times weeks means holiday cancels out and one more assumption disappears.

The index, role by role

Four roles have solid published hours data; two do not, and the table says which is which.

Field sales rep — 11.2 hours a week, £20,052 a year

Measured: 30% of the working week on creating quotes and manually entering data. Salesforce's State of Sales 7th edition asked 4,050 sales professionals how they spend an average workweek and published the split: meeting with customers 22%, prospecting 18% — 40% selling — then creating quotes 17%, planning 16%, manually entering data 13%, training 11%, other 3%, making 60% non-selling (Salesforce, fieldwork Aug–Sep 2025, p.8).

I took quotes plus manual data entry and excluded planning and training. Planning is arguably real work; training definitely is. That leaves 27 points of non-selling time on the table — deliberate, because an index that counts everything as waste is not an index, it is a sales pitch.

On SOC 3556's median 37.5 paid hours, 30% is 11.2 hours — 522 hours a year. Against £57,625 median pay and £66,840 employment cost: £20,052 per rep per year. Ten reps, £200,519 — roughly three more salaries you already pay for and do not get.

On the proxy: SOC 3556 covers 392,000 full-time jobs at £57,625; the alternative 3552 "business sales executives" sits at £37,924. If your reps are order-takers rather than account owners, rerun on 3552 and the tax drops to about £13,200. The deeper time breakdown is in our 27 UK field sales admin statistics.

Finance / accounts clerk — 11.6 hours a week, £11,254 a year

Measured: 31% of the UK working week on non-core admin — the Ricoh / Opinion Matters headline and the only UK-specific admin share in the index. UK workers sit at 31%, ahead of Spain 29%, Germany 27%, France 26%, the Netherlands 23% and Italy 21% (Ricoh, 16 April 2026).

Finance is one of three equally-split functions in Ricoh's decision-maker sample, so roughly 100 UK finance respondents sit behind that read. Thin, and better flagged than buried.

The definitional point matters more than the sample. For a book-keeper, admin is the job. The 31% is not time doing the accounts — it is non-core admin: re-keying invoices that arrived as PDFs, chasing approvals, reconciling two systems that should talk to each other, rebuilding the same spreadsheet monthly. Precisely the work we call ghost workflows.

On 37.5 paid hours, 31% is 11.6 hours a week, 539 hours a year, £11,254 per clerk per year — more than a third of a second salary, on the cheapest role in the index.

That chart is the most useful thing here for a UK operator. The point is not that admin is universal — it is that the UK is worse at it than its competitors. A German manufacturer at comparable headcount gets four points of the week back: an hour and a half per person, free.

Corroboration at process level: Ardent Partners' 2025 accounts payable benchmarks put 21.9% of AP staff time on managing supplier enquiries, an 18.4% invoice exception rate, and an all-inclusive £7.39 per invoice ($9.84, at USD/GBP 0.7507 as at 26 July 2026 — indicative rate, led in sterling because the original is dollar-denominated).

Field service engineer — 7.2 hours a week, £8,489 a year

This is where sources disagree most, so I will show my working.

Salesforce's April 2025 research reports that administrative tasks "require 30% of an average technician's working hours — slightly more than the 28% they spend actually delivering or performing services," and separately that technicians "waste more than seven hours per week on inefficient, unproductive, or low-value tasks" (Salesforce, 9 April 2025, n=350 US technicians). Salesforce's January 2026 restatement of the same study renders those seven hours as 18% of working hours (Salesforce). The Service Council's 2024 Voice of the Field Service Engineer goes far higher: respondents "estimate they spend 52% of their workday" on data capture and paperwork (Service Council, February 2025, PDF, p.12) — 2,747 participants, but a sample 31% India and 21% China and Malaysia, and a self-estimate rather than a diary measure.

I used 18% — not because it is the middle, but because it is the only figure measuring waste rather than total admin load. Thirty per cent is how much admin a technician does; seven hours is how much of it is unproductive, and an index should price the recoverable portion.

That gives 7.2 hours a week on SOC 5223's 40.0 paid hours — 334 hours a year, about eight and a half working weeks — £8,489 per engineer per year. If you think 30% is the better read, it is £14,148.

The honest caveat: none of these is a UK number. I am applying a US share to UK hours and UK pay, and keep it because no UK equivalent exists in public. Its direction is corroborated by the Service Council's earlier survey of 725+ technicians, which found "paperwork and admin" the most disliked part of the job for five consecutive years (Service Council, April 2021, PDF).

The pay proxy cross-checks well: SOC 5246, "electrical service and maintenance mechanics and repairers," gives £41,662 across 47,000 jobs — within 2.2% of 5223. I used 5223 for its far larger sample.

Site manager — 5.4 hours a week, £8,709 a year (the weakest row)

Measured: 13.4% of the working week looking for project data and information. Construction Disconnected found 35% of working hours going to non-optimal activities — 14.1 hours of a 40.5-hour week — comprising 5.5 hours looking for project data (13.4%), 4.7 hours on conflict resolution (11.6%) and 3.9 hours on rework (9.6%) (FMI / PlanGrid, April 2018, PDF). Field supervisors were worst-affected of seven roles, at 15.84 hours a week.

I used only the information-hunting component, 13.4%, because that is admin. Rework and conflict resolution are consequences of bad information, and folding them in would double-count. On 40.0 ASHE paid hours: 5.4 hours a week, 249 hours a year, £8,709 per site manager per year.

Three caveats make this the weakest row: the data is from April 2018; the sample is 500 US respondents against 99 spread across four other countries; and the split is self-reported, not observed. I found no UK replacement — no Chartered Institute of Building or comparable survey quantifies site manager paperwork hours.

Ranked on hours alone the desk-based roles lose most — but hours are only half the story, and the next section is the other half.

The two roles I could not fill — and the price list that replaces them

Operations manager and HGV driver. Two roles at the heart of every business I work with, and for neither could I find a published, methodologically disclosed figure for weekly admin hours.

For operations and production managers, the closest current UK research is OFS, which found manufacturers losing "more than 20 minutes per shift to manual reporting" from 500 UK manufacturing professionals, with 66% of operations teams using workarounds outside official systems (OFS, 29 May 2026). But it measures operators, not managers, it is vendor-commissioned, and no research house or fieldwork date is published. Useful context, not a manager statistic.

So rather than invent two numbers, I published the other half of the equation for all six roles: what one hour a week actually costs.

Read the ordering carefully, because it is counter-intuitive and it should change where you start.

An HGV driver has the longest week in the index at 47.9 paid hours — nearly 28% longer than a production manager's — and therefore the cheapest admin hour at £963, because the cost of an hour is employment cost spread across the paid week and a long week dilutes it. The production manager, on 37.5 hours and the highest pay here, has the dearest hour at £1,814. So an hour of a production manager's admin is worth 1.9 hours of a driver's. Most companies start with the driver, because his paperwork is visible and the manager's happens quietly in a spreadsheet after six.

A last cross-check on the driver row: ASHE puts SOC 8211 at £799.90 median gross weekly across 218,000 jobs, while the RHA's November 2025 survey puts a Class C+E artic driver at £876 on 55 hours and a Class C rigid at £725 on 49. ASHE sits between the two RHA classes, exactly what you would expect from a code containing both. The pay input is sound even though the hours input does not exist.

What good looks like — p25, median, p75

The single figure hides the spread. ASHE publishes percentiles, so the pay dispersion below is measured, with each role's admin share held at its central estimate.

There is a trap in the top half of that exhibit. ASHE percentiles are pay percentiles, not performance percentiles: a p25 row is not a well-run operation and a p75 row is not a badly-run one.

The bottom half is the real thing: Ardent's best-in-class quintile spends 12.8% of staff time on supplier enquiries against 24.0% for everyone else, at £1.99 per invoice against £9.32. Nearly two-fold on time, nearly five-fold on cost per transaction.

No published UK dataset breaks admin hours into quartiles by role, which is the gap in the public evidence I would most like to close in v2. Until then the honest version of "what good looks like" is a target, not a benchmark: halve it, then measure again. Halving the field sales rep's 11.2 hours returns 5.6 hours a week, worth £10,026 a year per rep at the median and £13,816 at the upper quartile — the same order of magnitude as the capacity we have reclaimed directly.

Methodology

Sample sizes are given with each source in The dataset above; the RHA does not publish its own.

Measured versus derived. Measured: all admin shares, all pay and paid-hours figures, the Ardent best-in-class split. Derived by me: every hours-per-week and hours-per-year figure, every employment-cost figure, every pound figure and every currency conversion. Nobody has published a "£20,052 admin tax for a field sales rep" statistic — I calculated it.

Normalisation. Admin shares are applied to each occupation's own ASHE median paid hours rather than a blanket 37.5, because the roles differ by up to 10.4 hours a week. Hours per year use 46.4 weeks (52 less 5.6 weeks statutory holiday). Pound figures use the share-of-annual-pay method, needing no working-weeks assumption. On-costs are employer NIC at 15% above £5,000 plus minimum 3% auto-enrolment pension on qualifying earnings of £6,240–£50,270, computed per role.

Currency. Sterling throughout. Two dollar-denominated Ardent figures are restated at USD/GBP 0.7507 as at 26 July 2026 — an indicative spot rate — with the dollar original alongside.

SOC proxies. No four-digit code is called "field service engineer" or "field sales rep." Every proxy is named in Exhibit 1, and the two most contestable are cross-checked: field service engineer against SOC 5246 (within 2.2% of 5223), and HGV driver against the RHA's class-level survey.

What I excluded. The HeyBRB "UK Admin Drain Report 2026" and its claim that tradespeople lose eight hours a week: 167 UK small business owners surveyed online in March 2026, 53% sole traders, published by an AI automation consultancy that sells the remedy — too small, too skewed, conflicted. The ONS UK Time Use Survey, which treats paid work as a single activity block and cannot support any role-level figure. The CIPD Good Work Index 2025 (5,017 UK employees), which contains no administrative-burden measure. And rework and conflict resolution from the construction data, which would inflate the site manager row from 5.4 hours to 14.1 by counting consequences as causes.

What is provisional. ASHE 2025 is the provisional edition; revised estimates are due October or November 2026. Version 2 restates them against the revised dataset.

What to do on Monday

Count one week for one role. Pick the dearest hour you actually employ — from Exhibit 2, probably your operations manager at £1,814. Have them log admin in fifteen-minute blocks for five days. Not a survey, not a workshop. A count. You will have a defensible internal number by Friday, and it will beat every figure here because it will be yours.

Multiply by the price list, not by a percentage. The commonest mistake is a business case built on "we think we can save 20%." Boards do not fund percentages. They fund "eleven hours a week across four people at £1,814 a weekly hour is £79,795 a year, here is the log."

Start where the hour is dearest, not where the paper is loudest. Rank candidate projects by cost per hour recovered before you rank them by how annoying the process feels. If you want that count run across every role at once, that is what the hidden waste audit produces — or book a call and we will run the arithmetic against your actual payroll.

This is version 1. If a role is wrong, a proxy badly chosen, or you know of a UK dataset that would fill the operations manager and HGV driver rows, tell me. Version 2 publishes in 2027 and I would rather it were right than consistent.

Related Reading

• 27 UK Field Sales Admin Waste Statistics (2026)
• The Hidden Cost of Manual Processes in UK Manufacturing
• Ghost Workflows: The Hidden Manual Tasks Costing UK Sales Teams Thousands of Hours
• The UK Manufacturing Productivity Gap: 40 Statistics (2026)
• AI vs. Hiring Another Sales Rep: The Maths Your CFO Needs to See
• Unlock Hidden Sales Capacity in UK Manufacturers
• Sales Capacity Planning: The Metric UK Manufacturers Are Missing

Frequently Asked Questions

How many hours a week do UK workers lose to admin?

UK workers spend 31% of the working week on non-core administrative activity — the highest share of any European market surveyed, ahead of Spain 29%, Germany 27%, France 26%, the Netherlands 23% and Italy 21% (Ricoh / Opinion Matters, 16 April 2026, UK n=300 decision-makers plus 6,000 office workers across six markets). On a 37.5-hour week that is 11.6 hours.

What does admin cost per employee per year in the UK?

Applying published admin shares to ONS ASHE 2025 median pay plus employer on-costs gives roughly £20,052 a year for a field sales rep, £11,254 for a finance or accounts clerk, £8,709 for a site manager and £8,489 for a field service engineer. Those figures are derived arithmetic, not published statistics: employment cost — ASHE median gross pay plus employer NIC at 15% above £5,000 and minimum 3% auto-enrolment pension — multiplied by the admin share of the paid week. They exclude all overheads and cover costs, so they are a floor.

What is the median UK salary for these roles?

From ONS ASHE 2025 provisional Table 14, full-time employees, released 23 October 2025: sales accounts and business development managers (SOC 3556) £57,625; production managers and directors in manufacturing (SOC 1121) £58,640 and in construction (SOC 1122) £56,021; metal working production and maintenance fitters (SOC 5223) £40,760; large goods vehicle drivers (SOC 8211) £39,905; book-keepers, payroll managers and wages clerks (SOC 4122) £31,560.

How much time do field sales reps spend on admin rather than selling?

Sales professionals spend 40% of the week selling — 22% meeting customers, 18% prospecting — and 60% on non-selling work: 17% creating quotes, 16% planning, 13% manually entering data, 11% training, 3% other (Salesforce State of Sales, 7th edition, fieldwork August–September 2025, n=4,050 across 22 countries, UK n=250). This index counts only quoting and manual data entry — 30%, or 11.2 hours a week — as admin.

How much admin do field service engineers do?

Published figures range from 18% to 52% of the working day and do not agree. Salesforce reports 30% of a technician's hours on administrative tasks, and more than seven hours a week — 18% — wasted on inefficient, unproductive or low-value work (n=350 US technicians, February–March 2025). The Service Council's 2024 Voice of the Field Service Engineer puts data capture and paperwork at 52% of the workday (n=2,747, February 2025). This index uses 18% because it is the only figure measuring recoverable waste rather than total admin load. None is a UK measurement.

Why does the index not include admin hours for HGV drivers and operations managers?

Because no published source with a disclosed methodology gives a weekly admin-hours figure for either. The ONS Time Use Survey treats paid work as one undifferentiated activity, and DfT's road freight statistics collect no time-use data at all — the last official UK measurement of how HGV time splits between driving and not-driving was the Transport KPI programme's November 2007 survey, which measured vehicles rather than drivers. For operations managers the nearest current UK research measures shop-floor operators and is vendor-commissioned without published fieldwork dates. Rather than invent numbers, the index publishes each role's measured pay and paid hours plus the cost of one admin hour a week — £1,814 for a production manager, £963 for an HGV driver.

Will the Admin Tax Index be updated?

Yes, annually. This is version 1, covering 2026. Version 2 publishes in 2027 using the same method, restated against the revised ONS ASHE 2025 dataset due in late 2026 and the next editions of the survey series used here. Any change of source or definition will be stated explicitly.