UK freelancer invoicing software
Freelancer Invoicing Software for UK Client Work
Create itemised invoices for hourly work, fixed-fee projects and retainers. Start with five invoices total on Free; add time tracking, recurring invoices and scheduled chasing on Pro.
- 5 invoices total on Free
- 14-day Pro trial
- PDF and printing on Free + Pro
Agreement → invoice → payment record
Freelance invoicing that matches how you charge
Start with the accepted scope, then make the billing basis obvious to the client. Experi keeps the invoice and payment status together; it is not a replacement for full bookkeeping or direct tax filing.
Hourly or day rate
State the billing period, quantity and agreed rate.
Fixed-fee project
Name the deliverable and the scope covered by the fee.
Milestone
Identify the completed stage and the contract or PO reference.
Retainer
Describe the covered month and any separately approved work.
A clearer invoice for every freelance job
Bill the Work You Agreed
Use separate lines for hours, day rates, milestones and approved expenses so the client can see what each charge covers.
Make Client Approval Easier
Keep the project, billing period, PO or contract reference, due date and payment details together on the invoice.
See What Still Needs Attention
Track issued, awaiting-payment and overdue invoices. Send manual reminders on Free or set a chasing schedule on Pro.
From job to customer invoice
An invoice workflow for freelancers
A freelance project combines tracked work, a fixed-fee deliverable and an agreed expense. Reference the contract or PO so the client's finance team can approve the invoice without asking what the work was for.
Choose hours or deliverables
Start with the freelancer template, then remove lines that do not fit the contract. A milestone should name the deliverable; hourly work should identify the period being billed.
Check your unbilled work
Review tracked time and expenses before preparing the invoice. If you use the Unbilled Work invoicing flow, do not add the same work again from a template.
Make approval straightforward
Put the PO and project reference where the client can find them, confirm payment terms and preview the invoice. Save the reusable structure for the next project, without copying the client.
Preselected, never automatically applied. Enter your own prices and review the client, dates and tax settings.
Before you invoice: Do not present illustrative rates as a recommended freelance rate or charge a fixed milestone and its included hours twice.

The tools behind this workflow
Explore the tools behind this workflow. Templates and inventory are free capabilities; document allowances apply. Time tracking, recurring invoices and automated chasing require Pro.
Freelancer invoicing features and plan access
Freelancer invoicing software questions
How do freelancers invoice clients?
Agree the billing basis and payment terms before the work starts. Then create an invoice that identifies the client, invoice number and date, the work or billing period, each amount charged, the total, due date and how to pay. Keep the wording aligned with the accepted quote, contract or purchase order.
What should a freelance invoice include?
Include your business details and the client's details, a unique invoice number, invoice and supply dates, a clear description of the services, quantities or hours where relevant, amounts, the total due, payment terms and payment instructions. Add VAT details only when they apply to your business and invoice.
Can I create a freelance invoice without an account?
Yes. Experi's browser invoice generator lets you prepare and download a freelance invoice without creating an account. Create an account when you want to save clients and invoices, send from Experi, or track payment status.
Which Experi features can a freelancer use on Free?
Free includes five invoices and five quotes as lifetime totals, up to three clients and three manual reminders. You can use professional invoices, PDFs, printing and reusable templates within those allowances.
Which freelancer invoicing features require Pro?
Pro starts with a 14-day trial and is £9 per month if you continue. It adds unlimited invoices and clients, time and expense tracking, projects, recurring invoices, scheduled payment reminders, multiple currencies and custom invoice branding.
Can I invoice hourly work and fixed-price milestones?
Yes. Add hourly or day-rate work with the quantity and rate, and give a fixed-fee milestone its own clearly named line. If a milestone already includes particular hours or expenses, do not add them again as separate charges.
Create your next freelance invoice
Start with hourly work, a fixed milestone or a retainer, then review the client copy before you issue it.
Free includes 5 invoices total · Pro is £9/month after the trial

