Invoice Generator for Consultants
Bill clients clearly for advisory work, strategy sessions, retainers and project milestones. MakeInvo helps consultants turn professional services into organised, client-ready invoices.
Designed for business, marketing, IT, HR, management and independent consultants.
Consulting work does not always fit one billing method
Most billing mistakes happen when rigid word processors and generic spreadsheets get bent into fiscal ledgers. Every extra click is billable time lost.
Some sessions are hourly, others are fixed price
Monthly retainers need to be billed on a predictable schedule
Larger engagements are billed against agreed milestones
Reimbursable expenses need to be shown separately from fees
Different contacts at the same client need to be billed correctly
Purchase order numbers need to appear on the invoice
Make complex consulting fees easy to understand
List each service or deliverable as its own line item, instead of one lump sum.
Record hours and your rate clearly for time-based work.
Add a retainer period so the client can see exactly which month it covers.
Identify project milestones by name so the invoice matches your proposal.
Add reimbursable expenses as separate line items.
Add a PO number where your client's finance team requires one.
Set clear payment terms on every invoice, whether that's 14, 30 or 60 days.
What a consulting invoice should show
Your name or company details
The client's billing information
The engagement or project name
The billing period, for retainers
The services delivered
Hours and rate, where relevant
The retainer or milestone amount
Any expenses
Tax, where applicable
The payment due date
Payment instructions
MakeInvo automatically standardizes these structural blocks on export.
Create a consulting invoice in minutes
Add the engagement
Add your details, the client, and the engagement or project name.
Add the billing
Add hours, a retainer period, or the milestone being billed.
Add expenses
Add any reimbursable expenses as their own line items.
Download the PDF
Generate and download a clear, client-ready PDF invoice.
Built for how consultants actually bill
Hourly billing
Bill advisory hours at your own rate, with a clear description of the work.
Retainer invoices
Bill a monthly retainer with the billing period clearly stated on the invoice.
Milestone billing
Invoice project milestones separately so they match your proposal or contract.
Expense line items
Show reimbursable expenses separately from your professional fees.
Client management
Registered users can save client details and see a full billing history per client.
Payment status tracking
Registered users can see which invoices are paid, sent or overdue.
What your invoice can look like
An illustrative example — your invoice will reflect your own business, client, work, and chosen currency.
Dalton Business Advisory
Ferris & Cole Ltd
PO: FC-2291
| Description | Amount |
|---|---|
Strategy workshop Half-day session | £950.00 |
Research and analysis 12 hours @ £85/hr | £1,020.00 |
Monthly retainer April | £1,500.00 |
Travel expense | £64.00 |
Make consulting invoices easier to approve
Reference the signed agreement or proposal on the invoice.
Use the same service names as the contract, not a generic description.
State the billing period clearly for retainer work.
Keep professional fees separate from reimbursable expenses.
Include the relevant purchase order number where one was provided.
Avoid revealing confidential project details in the invoice description.
Send invoices according to the schedule agreed with the client.