Invoice today.
Paid tomorrow.

Kelvo turns one email into a sent invoice, a logged expense, or a paid receipt — in any currency, any language. Built for freelancers who'd rather work than chase money.

  • No credit card required
  • 10 invoices free, forever
  • Inventory & expenses included
CurrenciesEUR GBP USD SEK DKK NOK INR PLN
LanguagesEN ET DE FI SV

Email it. Send it.

Forward a client thread — Kelvo replies with a polished invoice.

Snap it. Track it.

Email a receipt photo and Kelvo logs the expense for you.

Know the second.

Live email alerts the moment a client pays — no app to open.

Email magic

Forward an email. Get an invoice.

Your inbox is the interface. Kelvo reads what your client sent, fills in the fields, and sends back a polished invoice — in under a minute, no app required.

1

Forward the client email

Inbox
SC

Sarah Chen

sarah@northwood.co · 9:42 AM

Invoice for the hero illustrations?

Hey — can you bill me €1,200 for the hero illustrations? Net 14 would be great. Thanks!

2

Kelvo parses it

Five fields filled in, no typing.

Kelvo · parser
v.2026.04
Client—
Amount—
Currency—
Line item—
Terms—
3

Invoice sent

Kelvo invoice

INV-024 · €1,200.00

Sarah Chen · Net 14

Sent

Sent to sarah@northwood.co

PDF attached. Read receipt on. You'll know the moment Sarah opens it.

In action

Every screen does its job and gets out of the way.

Invoices that look as professional as your work.

Auto-numbered. PDF-ready. Sent directly from Kelvo. Read receipts let you know the moment a client opens one — no more wondering.

Kelvo Invoices — list view with status, client, amount, and due date

Expenses logged with one tap.

Snap a receipt, pick a category, done. Every expense flows straight into your books — at year end, your accountant gets a clean export.

Expense tracking — categorize with one tap, add vendor and notes

Real accounting, none of the complexity.

Cash or accrual, AR aging buckets, upcoming cash flow, an instant tax estimate. Your P&L writes itself, in the background, while you work.

Account Book — revenue, expenses, net profit, VAT liability, and receivables aging

Built for

Wherever you work, in whatever you charge.

Kelvo is the same fast tool whether you bill in euros from Berlin, dollars from Lagos, or rupees from Bangalore. Six languages. Eight currencies. Zero friction.

For freelancers like

Designers

Bill retainers in three currencies. Set per-project rates that stick.

Developers

Itemize hours and milestones, automatic VAT split for EU clients.

Writers

Track per-word rates and recurring monthly retainers without spreadsheets.

Photographers

Log expenses with receipts attached, shoot by shoot, edit by edit.

Studios

Payroll for the team and contractor invoicing — one app, one source of truth.

Consultants

Net-15 reminders that send themselves. You stop being the awkward one.

Bill in

8
EURGBPUSDSEKDKKNOKINRPLN

Read in

5
EnglishEestiDeutschSuomiSvenska

Pricing

Simple pricing. No surprises.

Start free. Upgrade when you're ready to go unlimited.

Free

€0

No credit card. No expiry. No catch.

  • 10 invoices per month
  • Unlimited expenses
  • Unlimited clients
  • Inventory (25 items)
  • 1 recurring invoice
  • Books & P&L statement
  • PDF & CSV export
Start for free
Most popular

Pro

€7/ month

Billed monthly. Cancel anytime. One client payment covers your whole year.

Less than one billable hour. Earns itself back the first invoice you don't forget to send.

  • Unlimited invoices & expenses
  • Unlimited inventory items
  • Payroll & pay stubs
  • Auto payment reminders
  • Recurring invoices
  • Magic email inbox
  • Everything in Free, unlocked
Send your first invoice

FAQ

Common questions

Send your first invoice today.

Email invoices. Track payments. Know your numbers. All from your inbox — or the app, whenever you want.