What Is the Difference Between W-9 and 1099?
A W-9 is a form you collect from a US supplier before you pay them — it captures their tax ID and legal entity type so you know how to report the payment. A 1099 is the year-end tax form you file with the IRS summarising what you paid that supplier during the year. The W-9 is the intake step (before payment); the 1099 is the reporting step (after year-end). In the EU, the equivalent is supplier onboarding data — VAT number, company registration, and banking details.
The workflow is: onboard the supplier (collect W-9 or EU equivalent — VAT number, registration, address), pay them through the year, then file the year-end report (1099 or EU equivalent — intra-community VAT listings, supplier payment summaries). The failure mode is paying a supplier without collecting their details first, then scrambling at year-end to reconstruct who they were. An AI employee like Nika helps with the intake side: she captures supplier details from every incoming invoice the day it arrives, from $0.40 per processed invoice.
For EU businesses, the practical equivalent of a W-9 is validating a supplier’s VAT number at onboarding and storing it with the first invoice. The year-end equivalent is the recapitulative statement (VIES) listing intra-EU suppliers and the EC sales list. The principle is the same as the US system: collect details before you pay, report what you paid afterwards. Your accountant handles the reporting; the bookkeeping underneath must be complete.
Related questions
Do I need a W-9 before paying a supplier?
In the US, yes — you should collect a W-9 before the first payment to ensure you can file the correct year-end form. In the EU, the equivalent is validating the supplier’s VAT number and company registration before the first invoice is paid.
What is the EU equivalent of a 1099?
There is no single EU equivalent. The closest are the recapitulative statement (VIES) for intra-EU trade, supplier payment summaries for local tax authorities, and intra-community VAT listings. Each member state has its own reporting requirements — your accountant confirms which apply.