Letter layout
Letter Mono invoice template
A letter typed rather than set — one monospaced face on a tighter measure.
What you see above is the whole document — every template stays visible whatever you pay. Making an invoice with Letter Mono itself is not part of the Free plan: Free covers 6 of the 60 templates, which are the 6 the generator offers, and the rest arrive with the paid plan when it launches.
Please find below our invoice for the services rendered during 01 Jun — 30 Jun 2026. The amount due is $11,030.00 USD, payable within 15 days — on or before 16 July 2026.
| Services | Qty | Rate | Amount |
|---|---|---|---|
| Platform engineeringOrder pipeline refactor, background job scheduler and the accompanying migration runbook. | 82 | $95.00 | $7,790.00 |
| Design systemComponent audit and a print stylesheet for the customer-facing documents. | 24 | $85.00 | $2,040.00 |
| On-call supportJune retainer. | 1 | $1,200.00 | $1,200.00 |
| Subtotal | $11,030.00 | ||
| VAT (0%) | $0.00 | ||
| Total due | $11,030.00 USD | ||
Reverse charge — VAT to be accounted for by the recipient.
Payment by bank transfer to Northbridge Software Consulting OÜ at LHV Pank, IBAN EE477700771000000000, SWIFT/BIC LHVBEE22 (Tartu maantee 2, 10145 Tallinn, Estonia). Please quote invoice INV-2026-07-014 as the reference.
Sample data · A4 · rendered by the product
How this sheet is set
Typed rather than typeset: one fixed-width face on a deliberately tighter measure, which is what keeps a monospaced paragraph readable at length.
The Letter layout
The invoice written as correspondence: an addressee block, a subject line, a short paragraph, and only then a slim table. The sign-off closes it the way a letter closes.
Who it suits
Professional services where the invoice is part of a conversation — a first engagement, an architect, a solicitor, a consultant who writes to a person rather than to an accounts inbox.
Monospaced type, fixed measures, structure made visible. Figures line up because the face makes them line up, and the sheet reads as something produced by a system rather than composed by hand.
What it prints
Every template in the library prints the same set of facts — a template that dropped one would fail the library’s own contract test. What changes between them is where the facts sit and how they are set.
- Issuer and recipient, each with an address, an optional contact line, and a tax label and number you write yourself.
- Invoice number, issue date, service period, payment terms or an explicit due date, and the date of the service agreement.
- Your own references — purchase order, contract, cost centre — labelled the way your client labels them.
- Line items with a quantity, an optional unit, an optional period, a rate and an amount.
- A note field, and full banking details with an optional payment reference.
Anything you leave empty prints nothing at all — no blank labels, no placeholder rows.