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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.

  1. 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.

  2. 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.

  3. 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.

Start with this template →

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.

Fictional freelancer worked invoice showing discovery and website design — august milestone, development milestone — approved scope, stock image licence reimbursement and illustrative GBP totals.
See how the line items fit together. Example prices are illustrative; add your own rates when you apply the template. Explore the example and download its PDF.

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.

Time tracking with a timer, entry form and UK calendar-week totals.
Capture the work while it is fresh. Use the timer or add time manually. Weekly totals cover Monday through today.
Unbilled time and expense summaries grouped by client project.
Review what still needs invoicing. Only billable work not already linked to an invoice belongs here.

Freelancer invoicing features and plan access

Free + Pro · Professional invoices, PDFs and printing
Free + Pro · Quotes and quote-to-invoice conversion
Free + Pro · Reusable invoice templates
Free + Pro · Client records and payment-status tracking
Pro · Time tracking and unbilled-work review
Pro · Expenses and project organisation
Pro · Recurring invoices for agreed retainers
Pro · Scheduled reminders and custom invoice branding

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