Retainers that bill themselves. Projects that bill on time.
A mix of monthly retainers, fixed-fee projects and the occasional extra day. Fenquist sends the regular invoices for you and keeps the one-offs quick.
What gets in the way, and what helps
Remembering to send the retainer invoice on the 1st.
Recurring invoices create and, if you like, send themselves on the schedule you set.
Scope creep that never gets billed.
Log the extra hours as you go and invoice them with the next bill.
Clients who sign quotes slowly.
Send a quote they accept online, then turn it into an invoice without retyping.
Most used:Invoices and quotesTime trackingAutomatic remindersMoney dashboard
Getting paid as a consultant
- Agree payment terms in the engagement letter and repeat them on every invoice.
- Invoice retainers in advance and extra time in arrears, and say which is which.
- Business clients who pay late owe statutory interest and compensation unless your contract says otherwise.
General information, correct as of October 2026, not tax or legal advice. Check GOV.UK or an accountant for your own situation.
Questions
Can a recurring invoice wait for me to check it?
Yes. Choose to have each one saved as a draft instead of sent automatically.
Can I add late payment interest?
Turn on late payment charges and, on an overdue invoice to a business, bill the statutory interest and compensation as a separate invoice.