Malaysia Tightens MyInvois Amount and Passport-Number Validations

Summary

• Malaysia’s Inland Revenue Board updated the MyInvois SDK documentation on 6 August 2026 to introduce a maximum length of 26 digits for monetary amount fields. [sdk.myinvo…sil.gov.my]
• The 26-digit constraint applies to several invoice-level and line-level fields, while passport identifiers are limited to 12 characters. [sdk.myinvo…sil.gov.my]
• The validation changes are scheduled to enter the MyInvois production environment on 23 October 2026. Submissions that do not meet the criteria may be rejected. [sdk.myinvo…sil.gov.my]

Extended article

Malaysia’s 6 August MyInvois SDK update introduces additional technical limits affecting electronic-invoice submissions.

Invoice-level amount fields affected include total excluding tax, total including tax, payable amount, discounts, fees, tax amounts and rounding amounts. Several monetary line-item fields are also covered. [sdk.myinvo…sil.gov.my]

The update also limits passport identifiers to 12 characters. HASiL states that submissions failing these criteria may be rejected once the changes enter production on 23 October 2026. [sdk.myinvo…sil.gov.my]

Official external source: HASiL MyInvois SDK 1.0 release notes. [sdk.myinvo…sil.gov.my]

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