As of April 22, 2025, the average annual salary for an Administrative Assistant III in the United Kingdom is £34,189, with an hourly rate of £16, according to Salary.com Global Salary IQ data. The average salary ranges from £32,380 to £37,508, influenced by factors like location, education, experience, and more.

Global Market Data
25TH   £32,380
50TH(Median)   £34,189
75TH   £37,508
Administrative Assistant III Salaries by Percentile
Percentile Salary Location Last Updated
25th Percentile Administrative Assistant III Salary £32,380 United Kingdom April 22, 2025
50th Percentile Administrative Assistant III Salary £34,189 United Kingdom April 22, 2025
75th Percentile Administrative Assistant III Salary £37,508 United Kingdom April 22, 2025

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How Much Does an Administrative Assistant III Make by Hour, Week, Month, and Year?

Last Updated on April 22, 2025

Salary.com provides you with accurate and diversified Administrative Assistant III salary data based on specialized databases to help you get a fairer salary. The average annual pay for an Administrative Assistant III is about £34,189 a year, this translates to an approximate hourly rate of £16, a monthly salary of about £2,849, and a weekly pay of around £657. Click the switch button below to see more details about Administrative Assistant III hourly pay, weekly pay, monthly pay, and so on.

How Much Do Administrative Assistant IIIs Earn at Different Levels in 2025?

An Administrative Assistant III's salary varies significantly based on experience level. Entry typically earn £32,380 - £33,514, while Intermediate make £32,542 - £33,649, Senior earn £32,947 - £34,000, Specialist earn £33,514 - £34,783, Expert can reach £34,684 - £36,616 or more, depending on the company and location.

Levels Salary
Entry Level Administrative Assistant III £33,163
Intermediate Level Administrative Assistant III £33,298
Senior Level Administrative Assistant III £33,649
Specialist Level Administrative Assistant III £34,189
Expert Level Administrative Assistant III £35,923
£33,163 0 yr
£33,298 < 2 yrs
£33,649 2-4 yrs
£34,189 5-8 yrs
£35,923 > 8 yrs
Entry Level 3%
Intermediate Level 3%
Senior Level 2%
Specialist Level 0%
Expert Level 5%
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Last Updated on April 22, 2025

Skills to Boost an Administrative Assistant III Salary

Mastering key skills can significantly increase your earning potential as an Administrative Assistant III. According to Salary.com's Real-time Job Posting Data, expertise in Customer Service can lead to a 10% salary raise, while strong Accounting skills boost pay by a 3%. Even Purchasing can result in a 1% salary increase.

Skill Library evaluates talent skills across five levels, supported by 5-10 behavior indicators, delivering precise insights for data-driven hiring decisions.
Customer Service
Customer service is the provision of service to customers before, during and after a purchase. The perception of success of such interactions is dependent on employees "who can adjust themselves to the personality of the guest". Customer service concerns the priority an organization assigns to customer service relative to components such as product innovation and pricing. In this sense, an organization that values good customer service may spend more money in training employees than the average organization or may proactively interview customers for feedback. From the point of view of an overall sales process engineering effort, customer service plays an important role in an organization's ability to generate income and revenue. From that perspective, customer service should be included as part of an overall approach to systematic improvement. One good customer service experience can change the entire perception a customer holds towards the organization.
Accounting
Creating financial statements and reports based on the summary of financial and business transactions.
Purchasing
Purchasing refers to a business or organization attempting to acquire goods or services to accomplish its goals. Although there are several organizations that attempt to set standards in the purchasing process, processes can vary greatly between organizations. Typically the word “purchasing” is not used interchangeably with the word “procurement”, since procurement typically includes expediting, supplier quality, and transportation and logistics (T&L) in addition to purchasing.
More Skills...
Based on recent job listings, in-demand skills in the Administrative Assistant III field include Customer Service (10%), Accounting (3%), Purchasing (1%), Bookkeeping (1%), and Onboarding (1%). These skills reflect current market needs.
Skills Salary Demand
Skill & Salary Demand
Customer Service £37,608
Customer Service
£37,608
10%
Accounting £35,215
Accounting
£35,215
3%
Purchasing £34,531
Purchasing
£34,531
1%
Bookkeeping £34,531
Bookkeeping
£34,531
1%
Onboarding £34,531
Onboarding
£34,531
1%
Customer Service
1.57%
Accounting
15.50%
Purchasing
2.63%
Bookkeeping
6.09%
Onboarding
15.36%

What are the Highest Paying Cities in the United Kingdom for Administrative Assistant III?

The top 3 highest-paying cities in the United Kingdom for Administrative Assistant III are London, Brighton and Hove, and Manchester. In London, the average salary is £36,924 per year, while Brighton and Hove offers £34,443, and Manchester pays around £32,772 annually.

Which Job Pays More: Sales Administrative Assistant III or Administrative Assistant III?

As of April 22, 2025 , an Sales Administrative Assistant III makes less than an Administrative Assistant III. An Sales Administrative Assistant III earns an average annual salary of £29,304. And an Administrative Assistant III earns an average annual salary of £34,189.

Job Title Salary Range in GBP
Sales Administrative Assistant III
£24,004
£35,735
Administrative Assistant
£18,751
£29,078
Sales Assistant III
£24,068
£35,831
Administrative Assistant I
£17,658
£27,382

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