AI invoicing software for freelancers & small businesses

Describe your work.
We'll write the invoice.

Tell Stalwa what you did in plain English. The AI extracts every line item, calculates totals, and produces a polished invoice PDF ready to send.

No credit card — free forever for up to 5 clients
14 days of full Pro — free, no card, nothing to cancel
GDPR compliant · SSL encrypted · cancel anytime
A freelancer relaxing at her desk with a laptop and a mug, moments after sending an invoice with Stalwa
Invoice sent2 hours ago

Acme Studio

1,200.00

The AI difference

Most invoicing tools start with a form.
Stalwa starts with what you did.

Describe your work in plain English. Stalwa turns it into structured invoice line items ready for you to review and send.

01

Describe your work

Write naturally in plain English. No forms. No fields.

02

AI extracts every line item

Stalwa finds the descriptions, quantities and rates and structures the draft for you.

03

Review and send

Check the draft, make any changes and send a professional invoice.

You type this

Designed a new website for Acme Studio, 20 hours at 50 per hour. Include tax.

Stalwa extracts this

ClientAcme Studio
DescriptionWebsite design and development
Hours20
Rate50.00
Tax (20%)200.00
Total1,200.00

Typical free invoicing software

  • Fill in invoice fieldsCustomer, description, quantity, rate and tax entered manually.
  • Structure every line itemYou decide how the work should be broken down and enter each row yourself.
  • Build the invoiceComplete the form, check the totals and make sure everything is in the right place.
  • Navigate invoicing/accounting toolsUseful features, but often more software than a freelancer needs for simply sending an invoice.
A freelancer relaxing on his sofa, smiling at his phone at home
Invoice paid 🎉

Acme Studio

1,200.00

2 days ago

With Stalwa

  • Describe what you didWrite naturally in plain English instead of filling in invoice rows.
  • AI extracts the line itemsDescriptions, quantities and rates are structured automatically into a draft.
  • Review, don't rebuildCheck the generated invoice, make any changes and send it.
  • Built for people who just want to invoiceA focused freelancer-first workflow without needing to learn accounting software.

Everything you need. Nothing you don’t.

Built for freelancers and small businesses who want to look professional — not spend their evenings learning accounting software.

AI writes your invoice

Describe your project in plain English. Stalwa extracts the line items and builds the draft for review.

Pro — included in 14-day trial

Branded PDFs in seconds

Your logo, your colours, your font. Every invoice looks like it came from a professional studio — not a spreadsheet.

Free & Pro

Know when it’s been opened

The moment your client opens your invoice, you know. No more chasing in the dark.

Free & Pro

Tax handled correctly

UK VAT, US Sales Tax, Australian GST, Canadian GST — pre-configured country defaults that save setup time.

Free & Pro

Secure shareable links

Every invoice gets a secure link your client can open on any device. Share by email, WhatsApp, or text.

Free & Pro

Works on any device

Invoice from your desk, your van, or a client site. The experience stays sharp on mobile, tablet, and desktop.

Free & Pro

Built for your country. Right from day one.

Set your country during signup. Stalwa automatically configures your currency, tax name, and rate. No manual setup. No second-guessing.

🇬🇧

United Kingdom

Currency: GBP (£)

Tax: VAT — 20%

GDPR compliant

🇺🇸

United States

Currency: USD ($)

Tax: Sales Tax

Set your state rate

🇨🇦

Canada

Currency: CAD (C$)

Tax: GST — 5%

Provincial tax note included

🇦🇺

Australia

Currency: AUD (A$)

Tax: GST — 10%

Privacy Act compliant

Stalwa already includes practical country defaults for the UK, US, Canada, Australia, Ireland, Germany, France, Spain, Italy, the Netherlands, New Zealand, Singapore, India, South Africa, and the UAE.

Early adopter pricing

Be one of the first.
Lock in £9.99 forever.

Stalwa is still early, and that’s exactly why the pricing is sharp. Early adopters get the lowest rate and help shape what comes next.

Price locked forever. Sign up now and keep that rate even as the product grows.

Direct line to the team. Early adopters shape what gets built next.

14 days of full Pro, free. Try AI, branding, and unlimited clients before deciding.

Cancel anytime. No calls. No retention maze. No friction.

Early adopter price

Founding member · Pro plan · Locked forever

£9.99/month
Start 14-day free trial

No credit card · Cancel anytime

Simple, honest pricing.

Start free. Try Pro for 14 days. Keep the price you sign up at — forever.

Free

£0

Get started with no card and no commitment. Free forever for up to 5 clients.

Get started free
  • 5 clients
  • Unlimited invoices
  • PDF generation & secure links
  • Invoice viewed notifications
  • 2 invoice templates (Modern and Classic)
  • Custom logo, colour & font
  • Not included on Free: AI line item generation
  • Not included on Free: All 8 invoice templates
  • Not included on Free: Full reports and recurring invoices
Most popular
Early bird — locked forever

Pro

£9.99/month

14 days free — full Pro access. No card. Then £9.99/month, locked at this price for early adopters.

Start 14-day free trial
  • Everything in Free
  • Unlimited clients
  • AI line item generation
  • All 8 invoice templates
  • No Stalwa footer
  • Full reports, recurring invoices & auto reminders

Try full Pro — free for 14 days.

AI invoicing, custom branding, premium templates, and unlimited clients. No card required.

Start free trial — no card needed
No card needed to startCancel anytime in two clicksEarly bird pricing stays locked

Your first invoice is
2 minutes away.

Stop wrestling with documents and totals. Start from a description, review the draft, and send something that feels polished.

No credit card required

A smiling freelancer checking her phone at home

Take Stalwa with you

Invoicing on the go.

Use Stalwa as your invoice maker app to create, edit and send invoices from anywhere.

Download on the App StoreGet it on Google Play

Questions? Answered.

Yes. Data is encrypted in transit and at rest, invoice PDFs are stored privately, and the product is designed with GDPR and privacy-by-default principles in mind.