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OSS VAT by delivery country
A Base.com add-on that sets order-line VAT from product extra fields by delivery country under OSS-style procedures.
Problem
Orders with several VAT rates under OSS-style selling did not get correct line VAT from the platform alone.
Approach
Encode delivery-country VAT on the product, then apply it at order-line level only when the OSS procedure is in play.
Solution
Store country-specific VAT rates in product extra fields and, when the OSS procedure applies, set each order line’s VAT from the delivery country using those fields.
Key features
- Per-country VAT rates in product extra fields
- Order-line VAT from delivery country
- Applies when the OSS procedure is active
Challenges
Platform behavior for mixed VAT on one order required an account-level workaround rather than a native multi-rate path.
Result
Mixed-rate OSS orders could carry correct line VAT without manual correction for the configured accounts.
Current state
Account add-on at Base.