Communication for Virtual Assistants and Executive Assistants

Client communication is where most Virtual Assistants, Executive Assistants, and Administrative Assistants either build a reputation for reliability or lose it in the first month. The technical work (calendars, inboxes, research) can be done well or poorly, and clients often can't tell the difference for weeks. Writing, they can tell immediately. A sign-off that reads as passive, a follow-up that lands as pushy, a greeting that sounds like it was copy-pasted, all of these register within the first line the client reads.

This page covers the writing problems that come up most often for VAs and EAs, based on the 21 interviews we ran for the research on this site.

Writing in the client's voice, not your own

The single most important thing to understand about writing on behalf of a client: the reader has to believe the client wrote it, or that the assistant is a faithful extension of the client. Not that the assistant has their own voice.

This is different from writing directly to a client. When you write to your client, you write as yourself, in your own professional voice. When you write on behalf of your client (which is most of what VAs and EAs do), you write as them. The reader on the other end should not be able to tell that an assistant is drafting.

The mechanics of matching a client's voice, per the assistants we interviewed:

• Read 20 sent emails from the client's own account before writing anything. Notice sentence length, greeting default, sign-off, whether they use contractions, whether they open with pleasantries or dive straight in.
• Match sentence length first. Most tone mistakes come from writing longer or more polished than the client would.
• Copy their sign-off exactly. Not "Best" if they use "Cheers." Not "Warmly" if they use "Thanks." Small, but recipients notice.
• Never introduce insider references you have not seen the client use first. No nicknames, no jokes, no first-name-only references to people the client normally introduces by full name.

For VAs and EAs managing multiple clients, this is genuinely hard. Every client has a different voice. Every reply requires reloading the tone. Some VAs and EAs solve this by batching (all of Client A's emails first, then Client B). Some use tools like Replyf, which learns each client's voice from their sent mail and generates drafts in that voice on demand.

Sign-offs and greetings

Sign-offs and greetings are the two lines of an email a recipient is guaranteed to read. Every other line is optional. Get these two right and the rest is much more forgiving.

The pattern most experienced assistants use:

• Greeting: match the client's default. If they open with "Hi," use "Hi." If they open with "Hey," use "Hey." If they open with just the recipient's name, use just the name. Never upgrade or downgrade the register on your own.
• Sign-off: keep it under three words. "Best," "Thanks," "Warmly," "Cheers." Long sign-offs ("Wishing you a wonderful rest of your week") read as filler in most professional email.
• First-name signature. Full names in signatures are for the signature block, not the sign-off itself.

Sign-off choice matters more when writing on behalf of an executive. "Best" reads formal but not stiff. "Thanks" reads warm but not casual. "Cheers" is regional (fine in UK/AU contexts, mildly off in most US professional contexts). Match the client, not general convention.

Follow-ups: when, how, and how many

Most VAs and EAs either follow up too much or not enough. The correct cadence depends on the situation, but a good default:

• Three business days for the first nudge on an unanswered thread.
• One week for the second.
• Two weeks for the third and last.
• Stop after three unless the client explicitly instructs otherwise.

Send every follow-up in the same thread. Never start a new one. The recipient can see the original message without scrolling and knows you have kept track.

The single most important line in a follow-up is the first one. Everything after can be templated. The opener is the only line the recipient will read carefully, so it has to feel written specifically for them and for this thread. Rewriting only the first sentence is the two-minute trick that keeps a templated follow-up from reading templated.

Thank-you notes

Thank-you notes from a VA or EA on behalf of a client are one of the easier writing tasks to do badly. Generic thank-yous ("Thanks so much for your time!") read as performative when the recipient knows an assistant drafted them. The recipient often knows because clients rarely take the time to write thank-yous themselves.

The fix: include one specific detail the client would definitely remember from the interaction. Ask the client for the detail before drafting if you weren't in the room. One-line ask, one-line answer, then write.

Length matters too. Long thank-you notes read as performative. Restraint reads as sincere. The best thank-you emails fit on a mobile screen without scrolling.

Brand voice for the client's external communication

Some VAs and EAs write not just email but the client's external content: LinkedIn posts, newsletters, social captions, occasional blog posts. This is a different skill than reply-writing. It requires understanding the client's brand voice as a system, not just their email tone.

The pieces of a brand voice worth documenting for any client you write for regularly:

• Vocabulary. Which industry terms they use, which they avoid, and which they have a personal preference on (e.g., "customers" vs "clients" vs "users").
• Formality. Do they contract? Do they use "we" or "I"? Do they use first names of team members or roles?
• Sentence pattern. Short and punchy, or long and considered? Lots of examples, or abstract statements?
• What they refuse to say. Every client has phrases they hate. "Leverage." "Circle back." "Synergy." Ask early which words are off-limits.

Document these in a shared doc the client can update. Refer to it before writing anything under their name.

Mapping executive language patterns: the tone capture framework

Ghostwriting for a client is one of the harder communication skills to build, and most VAs and EAs get stuck at the same step: they rely on generic descriptions ("professional but warm") instead of breaking down the actual structural patterns in the client's past emails.

The four pillars of executive style analysis

To build an accurate writing profile for a new client, pull a sample of 30 emails they wrote manually. Analyze against these four structural patterns:

1. Punctuation and formatting habits

• Do they prefer clean single-sentence directives, or long descriptive sentences?
• Do they use exclamation points, or strict formal periods?
• Do they structure lists as bullet points, or type them as long paragraphs?

2. Sign-off and greeting variations

• Track their preferred closings across contexts. "Thanks," "Best regards," "Cheers," or first name only.
• Check if they drop formal greetings entirely when replying to quick internal messages or Slack threads.

3. Sentence length and structure

• Count the average words per sentence in their recent messages. High-growth tech operators often keep replies under 8 words. Corporate partners frequently use longer multi-clause explanations.

4. Vocabulary and word choices

• Identify their most common phrases. Do they say "circle back," "touch base," "execute," or "review"? Make a list and use those terms naturally to keep the voice consistent.

The voice capture questionnaire

Ask these five questions during onboarding to clarify how a new executive communicates:

1. When declining speaking requests, do you prefer a brief schedule-conflict explanation, or redirect the host to a colleague?
2. What shorthand or abbreviations do you use regularly in quick internal updates?
3. Are there specific phrases, words, or greeting styles you want me to avoid entirely?
4. How do you format status reports for board members vs. casual updates for the internal team?
5. In what situations do you want me to escalate a message directly to you rather than handle the reply myself?

Managing cross-inbox tone shifts under pressure

When managing multiple active client inboxes, you switch writing styles rapidly throughout the day. Moving straight from a formal investor update to a casual internal team message can cause tone slip-ups if you aren't careful.

The triage decision tree for a working VA or EA supporting three different types of client:

• Silicon Valley tech founder: short, direct, casual, sometimes no greeting
• Private equity managing director: formal, full paragraphs, precise
• Creative agency design lead: conversational, descriptive, occasional emoji

To prevent voice slips, top-tier VAs and EAs use a documented tone sheet per client and refer to it before every reply for the first month. Sidebar tools like Replyf go a step further by learning each client's voice from their sent mail and generating drafts in that voice automatically. This removes the copy-paste-from-scratchpads step and keeps writing accurate even during busy morning triage sessions.

Related guides

The blog posts below dig into specific communication problems in depth. Each one is written for VAs and EAs handling client communication daily.