Invoice clients anywhere. Get paid without the compliance stress.
Your German client needs a Leistungsdatum. Your Dutch client needs a BTW-ID. Your French client needs a SIRET number and a specific TVA phrase. Your Kenyan client needs a KRA PIN and reverse charge wording. InvoiceMonk knows what each country requires — and builds it into your invoice automatically.
Trusted by freelancers billing clients in 30+ countries. Free to start —
Why freelancers who bill internationally keep getting invoices sent back
Generic invoicing tools let you change the currency. That is all they do.
They do not know that Germany requires the date of service to appear separately from the invoice date. They do not generate the reverse charge notation your EU clients need to process the VAT on their end. They do not enforce sequential numbering — which means one deleted invoice creates an audit gap that could cost you hours to explain. They do not include the KRA PIN field your Kenyan client's accountant will ask for before approving payment.
So you send the invoice. Their accountant sends it back. You research the requirement. You fix it manually. You send it again. Meanwhile, your payment is delayed by two weeks.
InvoiceMonk was built to end that cycle.
Three steps to a compliant international invoice
Add your client and select their country
Tell InvoiceMonk where your client is based. The platform immediately knows which compliance fields, VAT treatment, and mandatory language that country requires.
The right fields appear automatically
German client? Leistungsdatum field appears. Dutch client? BTW-ID and KVK number. French client? SIRET, TVA status, and late payment clause. Kenyan client? KRA PIN and reverse charge wording under the Kenya VAT Act. You fill in your project details — InvoiceMonk handles everything else.
Send an invoice your client can actually use
Your invoice arrives with the correct mandatory fields, the correct VAT treatment, and the correct compliance language for that country. No rejected invoices. No follow-up emails. No delayed payments.
Built for independent professionals who work globally
Developers and designers
Billing clients in Germany, the Netherlands, or France? InvoiceMonk generates the EU VAT fields, reverse charge notation, and sequential invoice numbers that European clients require — automatically.
Consultants and strategists
Project billing, retainer billing, or milestone billing — InvoiceMonk handles every structure. Multi-currency invoicing in EUR, GBP, USD, or any currency your client pays in.
Creatives and content professionals
From a one-off project invoice to a recurring monthly retainer — InvoiceMonk keeps your records audit-ready, your numbers sequential, and your clients happy.
Country-specific compliance — built in, not bolted on
InvoiceMonk includes the mandatory fields required by law in each of these countries. Select your client's country and they appear automatically.
Germany
- Leistungsdatum
- Steuernummer / USt-IdNr.
- Kleinunternehmer phrase
- Sequential numbering enforcement
Netherlands
- BTW-ID (not OB-nummer)
- KVK number
- BTW verlegd notation
- Payment due date
France
- SIRET number
- TVA status
- Franchise en base phrase
- Late payment clause
- Toubon Law compliance
Poland
- NIP number
- Biała Lista verification guidance
- KSeF-ready fields
- Odwrotne obciążenie notation
Bulgaria
- Sequential numbering enforcement
- EU reverse charge notation
- Article 196 EU VAT Directive wording
Kenya
- KRA PIN field
- Reverse charge under Kenya VAT Act Cap 476
- Withholding tax guidance
Philippines
- BIR-compliant Sales Invoice fields
- TIN with branch code
- Zero-rated notation for international clients
All EU countries
- Article 196 reverse charge notation
- VIES VAT number field
- Sequential numbering
- 15th of month invoicing rule
Invoicing a country not listed? InvoiceMonk includes the EU VAT baseline fields for any international B2B invoice — reverse charge notation, VAT number fields, and sequential numbering built in as standard.
What compliance-first actually means in practice
Sequential numbering — enforced by the system
EU tax authorities treat gaps in invoice numbers as a sign of unreported income. InvoiceMonk makes gaps structurally impossible. Every invoice is assigned the next number in the sequence automatically. You cannot skip, delete, or reuse a number — even accidentally.
Reverse charge — generated automatically
When you invoice a VAT-registered EU business client from outside their country, the correct reverse charge notation appears automatically — including the Article 196 EU VAT Directive wording your client's accountant needs. No manual research. No wrong wording. No rejected invoices.
Credit notes — issued correctly
Made an error on a sent invoice? InvoiceMonk generates a credit note that references the original by number and date, keeps your sequence intact, and adjusts the VAT correctly. The audit trail stays clean — no gaps, no deleted invoices, no explanations needed.
"Your software is good, no reason for me to switch. It does what I need for a fair price. And your support is excellent."
Rico Metzger
Senior Software Engineer — Bulgaria
Rico invoices international clients across Europe. He found InvoiceMonk through a Google search, chose it over the alternatives, and renewed his subscription specifically for sequential numbering enforcement and correct VAT handling on cross-border EU invoices.
Simple pricing. Built to grow with you.
Invoicemonk's Pro plan includes VAT-compliant invoicing, sequential numbering enforcement, reverse charge notation, and country-specific mandatory fields — for every invoice you send, to every country you work in.
Pro from $15/month. No feature gates on compliance.
Get startedCancel any time.
Freelancer invoicing — questions answered
Does InvoiceMonk handle VAT for EU clients automatically?
Yes. When you add a client based in an EU country, InvoiceMonk applies the correct VAT treatment for that transaction — including the reverse charge mechanism for cross-border B2B invoices. The Article 196 EU VAT Directive notation appears on the invoice automatically. You do not need to research the rules for each country manually.
What if my client's accountant requires country-specific fields I do not know about?
InvoiceMonk includes the mandatory fields required by law in each supported country — built into the invoice template by default. German invoices include the Leistungsdatum. Dutch invoices include the BTW-ID and KVK number. French invoices include the SIRET number and the TVA status statement. You fill in your project details and InvoiceMonk handles the compliance structure.
Can I invoice in different currencies?
Yes. InvoiceMonk supports invoicing in EUR, GBP, USD, CHF, CAD, AUD, KES, PHP, and any currency you agree with your client. The VAT compliance fields and mandatory country requirements apply regardless of which currency the invoice is denominated in.
What happens if I make an error on an invoice I already sent?
Issue a credit note directly from the original invoice in InvoiceMonk. The credit note references the original by number and date, reverses the VAT correctly, and assigns the next sequential credit note number. Your invoice sequence stays intact — no gaps, no deleted documents, no audit risk.
Is InvoiceMonk suitable for freelancers who are not VAT registered?
Yes. If you operate under a small business VAT exemption — Germany's Kleinunternehmerregelung, France's franchise en base de TVA, or the Netherlands' KOR scheme — InvoiceMonk generates the correct exemption phrase on your invoice automatically. Your invoice is compliant whether or not you charge VAT.
Does InvoiceMonk work for freelancers billing clients outside the EU?
Yes. InvoiceMonk includes compliance support for Kenya (KRA PIN, reverse charge under the Kenya VAT Act), the Philippines (BIR-compliant Sales Invoice fields, TIN with branch code), and international B2B invoicing generally. New markets are added regularly.
Ready to send invoices your clients can actually use?
Join freelancers in Europe, East Africa, and Southeast Asia who use InvoiceMonk to invoice internationally — with the right compliance fields built in from the start.
Get startedPro from $15/month. Upgrade when you are ready.