Virtual Assistant Invoice Template & Guide: Bill Hours and Retainers

Being a virtual assistant means juggling several clients, a mix of tasks, and often a mix of pricing models too: some clients on hourly, some on a monthly retainer. That makes clean invoicing essential. A VA who bills clearly, with the hours or the retainer period plainly shown, looks professional and gets paid on time by every client. One who is vague about hours and tasks invites questions and slow payment. The invoice is where a virtual assistant business looks organised and in control.

This guide covers how to invoice as a virtual assistant: hourly versus retainer packages, time tracking, billing multiple clients, expenses, and a sample VA invoice you can copy. It works for admin, executive, and specialist virtual assistants.

What a VA invoice must include

A virtual assistant invoice needs the standard fields plus a few specific to remote support work:

• Your name or business name, contact, and tax number where registered
• The client's name and any PO reference for business clients
• A unique invoice number, issue date, and a clear due date
• The period or retainer being billed
• The work: hours worked, tasks, or the retainer package
• The rate (hourly or the monthly retainer fee)
• Any expenses (software, subscriptions) passed on
• Subtotal, tax if registered, and the total due

Naming the period and either the hours or the retainer package keeps the invoice clear, especially for clients who are not watching your work day to day. For the full anatomy of an invoice, see our invoice format and layout guide, and for the broader freelance picture our freelance invoice template guide.

Hourly vs retainer packages

VAs bill two main ways, and the invoice should match what you agreed:

1. Hourly. You bill the hours worked, tracked with a tool, usually weekly or monthly. Simple and fair, but your income is capped at your hours and it takes more admin to track and justify.
2. Retainer package. A fixed monthly fee for a block of hours or an agreed scope (for example, "up to 20 hours per month"). Invoiced on the same day each month, this is the most stable model and the one most established VAs move toward.

Retainers are the goal: predictable income, less admin, and a committed client. Bill any hours over the retainer block separately, at your agreed overage rate, on a clear line.

Sample VA invoice

Here is a monthly retainer invoice with a few extra hours.

Description	Qty	Rate	Amount
Monthly retainer (20 hours, admin & inbox)	1	$600.00	$600.00
Additional hours (over retainer)	3	$32.00	$96.00
Scheduling software (reimbursed)	1	$15.00	$15.00
Subtotal			$711.00
Tax			$0.00
Total due (Net 14)			$711.00

The retainer, the overage hours, and the reimbursed software each sit on their own line. That clarity is exactly what a client needs to approve a recurring invoice without a query, and it protects your retainer rate when a month runs long.

Time tracking and billing multiple clients

Two things keep a multi-client VA business paid and sane:

• Track your time per client. Use a tool (Toggl, Clockify, or similar) so hourly work is defensible and retainer overage is accurate. When a client questions the hours, a time log ends the conversation.
• Invoice each client on a schedule. Set a fixed invoice day per client (or all on the 1st) so billing does not slip. Juggling several clients, it is easy to forget an invoice, and a forgotten invoice is unpaid work.

Being organised about time and invoicing is what separates a professional VA from a stressed one, and it directly protects your income. Forgotten or vague invoices are a common way freelancers lose money, a theme in our common invoice mistakes guide.

Retainers, expenses, and getting paid

Move clients onto retainers wherever you can, because predictable monthly income is the whole point of building a VA business rather than trading hours one at a time. Invoice the retainer upfront or at the start of the period so you are paid before or as you deliver.

For expenses, agree upfront what you pass on (software subscriptions, stock images, tools bought for the client) and itemise them separately from your fee, with receipts available. Never absorb client costs into your rate. For terms and chasing payment, see our payment terms guide and how to follow up on unpaid invoices.

Tax for virtual assistants

Tax depends on registration and location, and VAs often work with clients in other countries:

• In the UK, charge VAT (20 percent) once VAT registered. Cross-border B2B services may fall under reverse charge.
• In Australia, register for GST (10 percent) at A$75,000 turnover and quote your ABN; services to overseas clients are often GST-free.
• In the US, VAs report income themselves, typically via 1099 for US clients, with state rules varying.

Because VA work is often cross-border, place-of-supply rules matter. For invoicing clients abroad, see our how to invoice international clients guide.

Common VA invoice mistakes

• No time tracking, so hourly work cannot be justified.
• Not billing retainer overage, giving away extra hours for free.
• Forgetting to invoice a client among several.
• Absorbing software and expenses into your rate.
• Sending editable files. Always send a PDF.

Make a VA invoice in 60 seconds

You do not need practice-management software to bill clients professionally. Invoicara's free invoice generator lets you itemise retainers, hours, and expenses, add a PO reference and Net 14 terms, apply tax, and export a clean PDF. Save each client's details so their monthly invoice takes under a minute. No sign-up, no watermark, free forever.

For related work, see our social media manager invoice guide and freelance invoice template guide. For the basics, our complete guide on how to make an invoice covers every field. Track your time, bill retainers on a schedule, charge for overage and expenses, and your virtual assistant business gets paid on time by every client.