---
title: "Form Validation | Label"
description: "Validate W-8, W-9 and CRS self-certifications field by field at submission, with expiry tracking and inline error guidance."
url: "https://website.labeltech.io/form-validation/"
locale: "en"
---

*Form Validation · W-8 / W-9 / Self-certification*

# Every form right the first time.

W-8BEN, W-8BEN-E, W-9 and CRS self-certifications validated field-by-field the moment they’re submitted. Catch the six mistakes we see most before you ever accept the document.

- [Book a call](/contact/)
- [See TIN validation](/tin-validation/)

*The problem*

## An invalid form is a liability you accepted

A W-8 with a missing treaty claim or an expired signature isn’t just paperwork — it’s a documentation gap that surfaces at exactly the wrong time. Label validates each form against current IRS and OECD rules at submission, so only clean documents enter your records.

### W-8 & W-9 validation

Field-level checks for W-8BEN, W-8BEN-E, W-8IMY and W-9 — including treaty claims, chapter status and GIIN format.

### CRS self-certification

Validate self-certifications for completeness, consistency and jurisdiction of residence logic.

### Expiry & validity tracking

Track form validity periods and change-in-circumstance triggers so nothing quietly lapses.

### Inline error guidance

When something’s wrong, the submitter sees exactly what to fix — not a rejection weeks later.

### Cross-check with records

Reconcile form data against what you already hold to catch mismatches and inconsistencies.

### Reporting on gaps

A live view of which investors have valid, expiring or missing documentation.

| Metric | Value |
| --- | --- |
| Common errors caught | 6 |
| Documentation accuracy | 99.9% |
| Surprise gaps at deadline | 0 |

*How it works*

## Validate at submission, not at deadline

1. 1: **Submit**

   Investor completes a digital W-8, W-9 or self-certification.
2. 2: **Validate**

   Every field checked against current rules instantly.
3. 3: **Guide**

   Errors flagged inline for the submitter to fix on the spot.
4. 4: **Accept**

   Only clean, valid forms enter your records — with expiry tracked.

> The forms that reach our team are already clean. Validation moved upstream, and our remediation backlog basically disappeared.
>
> — Tax Operations Lead, bank

## Only accept forms that pass.

See field-by-field validation for W-8, W-9 and CRS self-certifications in action.

- [Book a call](/contact/)