Branded, VAT-aware invoicing for sole traders and small businesses. Track time against a project with a live timer or a weekly timesheet, log expenses with a receipt photo, then pull the unbilled ones straight into an invoice — the whole job-to-cash loop in one place. Sequential numbering, client and product memory, an invoice log and one-click PDF — VAT stays off until you cross the threshold, then switches on to produce fully HMRC-compliant VAT invoices, tax point and all.
£10 per seat / month, excluding VAT, billed in arrears · no setup fee · monthly rolling, cancel for the end of any month · drops to £8.33/seat/month automatically after 12 consecutive paid months, no prepayment · how pricing works
◆ No scoping call needed — pay by card or PO once you're signed off, and we'll grant access as soon as that clears. Want to see it running first? book a walkthrough instead.
Works with what you already have: Client and product lists from CSV; branded PDF invoices; a clean export for your accountant or bookkeeping software. No payment gateway (Stripe/GoCardless) or bank feed yet — record payments yourself and InvoiceIQ tracks the rest.
Where your data lives: On your own device by default — nothing is sent to us. Optional hosted team mode keeps your team's data in a UK database (Supabase, London, eu-west-2), separated from other customers by row-level security. Security & trust →

Start a timer against a project, or fill in the weekly timesheet — then tick the hours you want billed and they drop straight in as line items. No re-typing hours from a notebook.
Log a cost against a project, snap the receipt — it's shrunk down before it's ever stored — and rebill it to the client with one click, markup included if you charge one.
Every invoice gets a unique, ordered number with no manual tracking — clean records HMRC will be happy with.
Under £90k? Invoices show no VAT. Register later and flip one switch in Settings — InvoiceIQ handles the rest.
Save a client or a product once and quick-add it next time — no re-keying addresses or line items.
Every invoice you've raised, with status — sent, paid, overdue — in one place you can actually find.
Record a payment against an invoice — full or partial, with date, method and reference — and InvoiceIQ keeps the running balance. The dashboard separates money actually received from what's still outstanding, and a priority-actions list ranks overdue invoices oldest first with a one-click reminder.
Export a clean, on-brand PDF ready to send, formatted the way a small business should look.
Pre-loaded to invoice for FinanceIQ and TradeIQ work — or any product line you add.
No per-seat SaaS, no features you'll never use — just fast, correct invoices and a tidy record, sized for a sole trader or a small team.

Compliant for the under-£90k sole trader out of the box, with a clean upgrade path when you register.
Numbering, client memory and the invoice log mean your records stay in order without extra admin.
Fill, save, export — a professional, branded invoice out the door in under a minute.
Track time, log expenses, invoice off them. Flat £/seat/month, quoted up front — nothing stacked on top once you cross a threshold of projects, clients or invoices you didn't know you were counting.
What's on the pricing page is what you pay — no usage fees calculated from last month's activity landing on the bill afterwards.
Your price doesn't move mid-contract. Add seats when you need them — that's a message to us, not a renegotiation.
The price on the app-pricing page is the price — no invoice-volume tiers or usage fees added on top.
Below £90k you raise clean commercial invoices; register for VAT and InvoiceIQ produces invoices carrying every field HMRC requires — automatically — with records kept audit-ready from day one.
Once registered: the "VAT invoice" title, your VAT number, per-line rate, net, VAT total and gross — all added automatically, nothing to remember.
The time of supply is set on every VAT invoice, defaulting to the issue date — the field most templates quietly leave off.
Unique, unbroken invoice numbers with no gaps — the ordered audit trail HMRC expects to see.
Structured records you can keep and re-export for as long as HMRC requires you to retain them.
We structure your invoicing to current UK requirements but are not a tax or compliance authority; confirm your specific obligations with your accountant or HMRC. Full standards breakdown →
Every field HMRC requires on full, simplified and modified VAT invoices, plus sequential numbering rules, six-year retention and the errors to avoid.
Read the guide → InvoiceIQStatutory interest and compensation under the Late Payment of Commercial Debts Act, how to calculate what you’re owed, and how to actually collect it without damaging the client relationship.
Read the guide →An interactive guide to InvoiceIQ, with real screens on sample data. Pick your kind of business and tap through.
We'll set it up with your details, your numbering and your product lines, ready to invoice on day one.