Avalara 1099 & W-9 integration guide
Before you begin
- About this guide
- Quick reference for 1099 integration
- Core requirements overview
- Additional resources
- Glossary
- Supported form types
Plan your integration
Requirements for 1099 form integration
Requirements for W-9 / W-4 / W-8 form integration
Authentication
File 1099 forms
Collect W-9 forms
Q and A
1099 forms
Supported forms
Bulk-Upsert
Field requirements and validation
Corrections and zeroing out forms
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