What Does an Executive Assistant Do? The Complete List of Tasks & Responsibilities

Ask ten people what an executive assistant does and you will get ten different answers – “diary”, “emails”, “the person who books the travel”. All true, all incomplete. The modern executive assistant role has widened far beyond traditional secretarial work into time management, stakeholder liaison, project ownership, and the quiet judgement calls that keep a leader’s week moving.

This guide breaks down exactly what an executive assistant does: the core responsibilities, what the job looks like hour by hour, the skills behind the tasks, and – if you are a founder or leader weighing up support – which duties to hand off first. If you want the role from a CEO’s perspective specifically, see our complete guide to the executive assistant to CEO relationship; this page is about what the role actually does.

What Does an Executive Assistant Do?

At its heart, an executive assistant manages the time, communication and administrative workload of a senior leader so that leader can concentrate on the work only they can do. In practice that means owning the diary, filtering and triaging email, coordinating meetings and travel, preparing documents and briefings, and acting as the gatekeeper between the executive and everyone trying to reach them.

The reason the role exists is simple: senior work is constantly interrupted by lower-value coordination. Global research by Asana found that knowledge workers spend 58% of their day on “work about work” – chasing updates, status meetings, switching between apps – leaving just 42% for the skilled, strategic work they were actually hired to do (Asana, Anatomy of Work Global Index, 2023). A strong EA exists to reclaim that 58%.

The role has also outgrown the “secretary” label. Today’s executive assistants manage projects, liaise with senior stakeholders on the executive’s behalf, handle confidential information, and own the systems and tools that keep a leader organised. The best ones do not just complete tasks – they anticipate them, removing friction before the executive ever notices it.

The Core Responsibilities of an Executive Assistant

Almost everything an executive assistant does falls into seven core areas. Together they cover the full operational layer of a senior leader’s working life.

• 1. Calendar and diary management. The heart of the role – booking and rescheduling meetings, resolving clashes, protecting focus time, and saying no (politely) to commitments that do not earn their place. Good calendar management is really time management.
• 2. Inbox and communication management. Triaging a high-volume inbox – flagging what is urgent, drafting or sending routine replies, and surfacing only what genuinely needs the executive’s attention. Many EAs reach the point of managing the inbox almost autonomously, replying in the executive’s voice.
• 3. Meeting coordination and follow-up. Beyond scheduling: circulating agendas, gathering pre-reads, taking minutes, and chasing action points afterwards so decisions actually turn into outcomes.
• 4. Travel and event logistics. Flights, hotels, transfers, visas, itineraries – and fixing the inevitable last-minute changes before they become the executive’s problem.
• 5. Document and briefing preparation. Producing and polishing reports, presentations, board papers, expenses and concise briefings that get the executive up to speed in minutes rather than hours.
• 6. Gatekeeping and stakeholder liaison. Acting as the filter between the executive and the outside world – deciding what gets through, handling the rest, and managing relationships on the executive’s behalf.
• 7. Project and task management. Increasingly, EAs own discrete projects: tracking deadlines, coordinating contributors, and keeping initiatives moving without the executive having to micromanage them.

Why does this matter so much? Because the cost of an unmanaged workload is measurable. Microsoft’s 2025 Work Trend Index found that employees are interrupted every two minutes during core working hours – roughly 275 interruptions a day from meetings, emails and messages (Microsoft, Work Trend Index, June 2025). And each significant interruption takes an average of around 23 minutes to fully recover from, according to research led by Professor Gloria Mark at the University of California, Irvine. An EA’s job is to stand between the executive and that chaos.

Employees are interrupted every two minutes – about 275 times a day (Microsoft Work Trend Index, 2025) – and it takes roughly 23 minutes to refocus after each one (Gloria Mark, UC Irvine). An executive assistant’s core function is to absorb those interruptions so the leader keeps the uninterrupted time that strategic work requires.

A Day in the Life: What an EA Does From Morning to Evening

No two days are identical – and the best EAs are valued precisely because they absorb the unpredictable. But a typical day follows a clear rhythm:

• Morning: reviews the diary and inbox, flags the day’s priorities, and sends the executive a short brief on what is ahead.
• Midday: coordinates meetings, takes notes, manages incoming requests, and handles any travel or scheduling changes in real time.
• Afternoon: prepares documents for upcoming meetings, chases outstanding action points, and processes expenses or admin.
• End of day: confirms tomorrow’s schedule, clears anything outstanding, and resets the inbox so the executive starts the next day clean.

This rhythm matters most at the top. A landmark Harvard Business Review study that tracked 27 CEOs across a 13-week period found they worked an average of 62.5 hours a week and spent 72% of that time in meetings – around 37 meetings a week (Porter & Nohria, Harvard Business Review, 2018). Every one of those meetings has to be scheduled, prepared for, and followed up. That is the EA’s working day.

Executive Assistant vs Other Roles

The titles overlap in everyday use, but the roles are distinct:

Executive assistant vs personal assistant (PA). A PA’s focus skews more towards personal and lifestyle support, while an EA operates at a business and strategic level – managing professional priorities, stakeholders and projects for a senior leader.

Executive assistant vs administrative assistant. An admin assistant typically supports a team or department with general clerical tasks. An EA supports a specific senior individual, with far more autonomy, judgement and confidentiality involved.

Executive assistant vs virtual executive assistant. The duties are the same – the difference is location. A virtual EA performs the full executive-assistant role remotely, which is how most modern leaders now access senior support without the overhead of an in-house hire. If you are hiring at board or C-suite level, see our guide on the C-level executive assistant.

The Skills Behind the Tasks

The task list only works because of the skills underneath it. The capabilities that separate a good EA from a great one:

• Organisation – juggling competing priorities without dropping anything.
• Communication – writing clearly and representing the executive professionally.
• Discretion – handling confidential and sensitive information with total trust.
• Anticipation – spotting what is needed before being asked.
• Tech fluency – running calendars, comms and project tools efficiently.
• Judgement – knowing what to escalate, what to handle, and what to ignore.

Judgement is the one that matters most – and the hardest to hire for. It is the difference between an assistant who needs a task queue and one who reads the week ahead and pre-empts the problems before they land in the diary.

Which Executive Assistant Tasks Should You Delegate First?

If you are a founder or executive considering EA support, start by handing off the work that is high-frequency and low-judgement. There is good reason not to wait: even at the most senior level, only 9% of executives say they are very satisfied with how they allocate their time, according to McKinsey research covering 1,374 senior leaders (McKinsey & Company, 2013). Delegation is the most direct fix.

A sensible order to delegate in:

1. Calendar and scheduling – usually the single biggest time drain.
2. Inbox triage – reclaim the hours lost to email.
3. Travel booking – high-effort, low-strategic-value work.
4. Meeting notes and follow-ups – easy to delegate, easy to measure.
5. Expenses and routine admin – recurring tasks that rarely need you.

As trust builds, you delegate progressively more judgement-heavy work – stakeholder communication, project ownership, and acting in your voice. The founders who recover the most time are not the ones with the cleanest task lists; they are the ones who give their EA enough context to make calls independently.

What Does an Executive Assistant Cost?

In the UK, the average executive assistant salary is around £43,492, with senior EA-to-CEO roles in London reaching £46,000-£60,000 (Reed, 2026). Once employer National Insurance, pension and benefits are added, the true cost of a full-time in-house EA is meaningfully higher than the headline salary – typically 25-30% on top before you account for recruitment, software and a desk.

That is why many leaders now choose a remote executive assistant service instead: the same duties, performed remotely, without the employer overhead. The cost of not having that support is real too – Gallup estimates that disengaged, fragmented work cost the global economy US$438 billion in lost productivity in 2024 alone (Gallup, State of the Global Workplace 2025), and the same chaotic, interruption-heavy conditions that drag down teams drag down leaders without operational support.

If you are weighing up the options, our comparison of the top virtual assistant and managed EA services breaks down the models and price tiers side by side.

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