Withholding Tax On Payment #

Create and manage Withholding Tax (WHT) documents linked to Payments

Includes WHT certificate printing, XLSX export, tax section support, and company-based sequence management.

Overview #

This module extends the standard withholding tax workflow by linking Withholding Tax documents directly to Payments. It helps accounting teams manage WHT certificates more efficiently, with support for confirmation checks, document numbering, report printing, and XLSX export.

Why use this module? #

• Manage WHT certificates directly from payment records
• Keep withholding tax documents organized and traceable
• Print official WHT certificates in PDF format
• Export certificate data to XLSX using a predefined template

Key Features #

• Adds a dedicated Withholding Tax document model
• Links WHT documents with account.payment
• Opens related WHT documents directly from Payment form
• Supports WHT Payment options
• Adds Tax Section field in wizard, payment, and WHT form
• Requires Other field for specific tax sections
• Company-based WHT sequence generation
• Confirmation allowed only when payment is paid
• QWeb PDF certificate report
• XLSX export with template-based output

How it works #

• Create a payment from Vendor Bill / Invoice using Register Payment
• Fill withholding tax lines and select the proper Tax Section
• Confirm payment as usual
• The system automatically creates a linked Withholding Tax document
• Users can print the certificate or export it to XLSX later

Supported WHT Payment Types #

The module helps standardize withholding tax processing from payment creation to certificate output.

Configuration #

1. Go to Settings → Accounting
2. Configure Withholding Tax Sequence for each company
3. Open Vendor Bill / Invoice and click Register Payment
4. Fill withholding tax lines in the payment register wizard
5. Set the correct Tax Section and WHT Payment type
6. Confirm the payment

If no WHT sequence is defined, the system can automatically create one during confirmation.

Screenshots #

Replace these images with real screenshots from your module for better presentation.

Configuration Withholding Tax

Payment Register with Withholding Tax lines

Withholding Tax document form

Print WHT Certificate

Certificate PDF

Certificate Excel

Notes #

• Done WHT documents cannot be deleted
• Confirmation is allowed only when the related payment is in paid state
• Supports Thai formatting and Buddhist Era year in some outputs
• XLSX export uses a template stored inside the module