AI Invoice Generator.
Invoicing for painters and decorators.
Room by room or day rate plus materials - describe the job in one sentence and a professional invoice builds itself, ready before the dust sheets are folded.
No signup, no card needed to try it.
Say it like you would say it
"Invoice Mr Osman 980 for decorating the hall, stairs and landing: prep and painting 760, materials 220, due in 14 days"
That is the whole job. The AI writes the lines, deterministic code does every sum in exact pence, and the invoice is ready to send with your logo on it.
The finish is perfect. The paperwork is wet.
Two coats done, one invoice owing
Decorating is priced by the job and won by the quote - and between the quote and the money sits an invoice somebody has to write.
The quote did the pricing once
You measured, priced and won the job in the quote. Retyping those same lines into an invoice is the same work twice - and where figures drift.
Day rates plus materials
Labour by the day, paint and sundries on top. Customers pay faster when the split is visible - itemising by hand is why it goes out late.
The 'while you are here' extras
The extra ceiling, the touched-up woodwork - little additions agreed on the spot and forgotten by invoice day. Money painted over.
Instant professional templates
Send something that looks like you charge properly
An invoice that looks thrown together gets treated like one. Pick from 26 designs - these are the real ones, not pictures of them - and switch at any point, before or after you have written it. Your logo and colours go on top.
Luxury
Tradesman
Luxury Gold
Why your accountant can relax
The AI writes. It does not count.
Language models are good with words and unreliable with arithmetic, so DocMason only lets them do the first part. Every figure on a document you send is worked out by ordinary code, in exact pence, the same way every time.
It is the difference between a tool you check afterwards and one you can send without reading twice.
- VAT, discounts and totals calculated in code, never by the AI
- Money held in exact pence, so rounding cannot drift
- Every email sent on your behalf is stored in full, so you can read exactly what went out and to whom
- Your data hosted in the EU, never used to train AI models
FAQs
Questions from painters and decorators, answered straight
The free tier, the maths, and how invoicing fits the way painters and decorators actually work. Everything else is on the full page.
Something else on your mind? Ask a human.
Can I turn my quote into the invoice when the job is done?
Yes - one click converts an accepted quote into a ready-to-send invoice: every line, the customer and your design carry over, linked to the original. Add the on-the-spot extras as new lines in the chat before it goes.
Can I split labour and materials?
Yes - say the job with the split in the sentence ('three days at 240, materials 220') and each becomes its own line. All arithmetic, including VAT, is computed by deterministic code in exact pence.
Is it really free?
Yes. Build and preview an invoice with no account at all, and create a free account when you want the PDF. The free plan includes 3 invoices and 3 quotes every month with all 26 designs - no card needed. Starter at 9.99 GBP a month makes them unlimited.
Does the AI do the maths?
No, and that is deliberate. The AI reads what you typed; plain deterministic code computes every total, discount and VAT figure in exact pence. AI is good at language and bad at arithmetic, so it only does the first one.
Want the whole picture? See everything the invoice generator does.
Your next invoice takes a minute
3 free invoices a month. Describe the job like you would say it, and see for yourself.