How to fill Colorado W4, your way.
The steps below are convenient starting point for most businesses. You can customize anything to fit your unique needs.
Fill Colorado W4 with your data
Option 1: via API
If you already have the data, you can use Anvil's PDF filling endpoint to fill the Colorado W4 PDF template from any application. Send your data as JSON and receive the filled PDF.
Option 2: via Webform
Sign up to use this templateGenerate filled PDF documents with user-submitted data collected through the Webform.
Need to collect data first? Create a Webform.
Use our drag-and-drop Webform tool to collect data from your users. Easily link Webform fields to those on the PDF and use the template as many times as you need.
Embed it into you product and customize styling to create a seamless on-brand experience for your clients or end users.
Explore your use case
Collect e-signatures in the same workflow
No need to use 3rd party E-sign services - Anvil makes it easy to get your forms signed in the same workflow.