Invoice Comparison Tool
Compare two invoices line by line and see exactly what changed.
Invoice Billing Address Validator
Check a billing address is complete and correctly formed for its country, before it is invoiced.
Quick Tool Overview
The Invoice Billing Address Validator checks that a billing address is complete and correctly formed for its country — postcode format, enough lines, the country line on cross-border invoices — and warns about PO boxes and care-of addresses.
- What it does
- Checks billing addresses on invoices
- You give it
- An address and its country
- You get back
- A checklist of what is missing or wrong
- Best for
- Cross-border invoicing and VAT evidence
About the Invoice Billing Address Validator
A billing address on an invoice does three jobs: it identifies the legal entity being charged, it decides the tax treatment on a cross-border sale, and it is where a paper invoice or a chaser actually goes. An address missing its postcode or its country fails at least one of them.
Paste an address and choose the country. This checks what a postal service and a tax inspector both look for: enough lines to be a real address, a postcode in that country’s format — a UK outward and inward code, a Dutch four digits and two letters, an Irish Eircode, a six-digit Indian PIN — and a country line on anything crossing a border.
It also flags the things that cause trouble later: a PO box where a registered office is required, a care-of address, a postcode that belongs to a different country from the one selected. It is a format check rather than a delivery check — no address database is consulted, because nothing is uploaded.
Key features of the Invoice Billing Address Validator
Postcode formats
Fifteen countries, by their own pattern.
Country line
Required on anything crossing a border.
PO box warnings
Where a street address is expected.
Works with the formatter
Which rewrites it in the right order.
No lookup
A format check, with nothing uploaded.
How to use the Invoice Billing Address Validator
-
1
Paste the address
As it appears on the invoice, one line per line.
-
2
Choose the country
The postcode rule and line order follow from it.
-
3
Read the findings
Missing parts, wrong postcode format, and warnings.
-
4
Tidy it up
The Invoice Address Formatter rewrites it in the right order.
Frequently asked questions
No. That needs a postal address database, which would mean sending the address to a server. This checks that the address is complete and correctly formed for its country.
Because on a cross-border invoice it determines the VAT treatment, and because the destination country’s postal service reads it first.
For a delivery address often yes; as a registered office in most countries no, and some customers will not pay an invoice without a street address.
No. It is checked in your browser.
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