The two documents
The certificate proves where the company is resident. Form 41 (formerly Form 10F) puts that fact on the Indian portal, with the period the certificate covers.
The department's Form 41 note says the certificate must be valid for the relevant financial year in India, and that the form is filed once in that tax year. There is no separate due date. You file it when a treaty claim is made, including when an Indian payer is deciding what to deduct.
Use Form 10F for income earned up to 31 March 2026. Use Form 41 for income from 1 April 2026. A bank checklist that still says Form 10F is often the old name. The year of the income decides the form. The full old-to-new list is on the form-number guide.
A company certificate is not a personal one
Article 4 of the India-UAE treaty treats people and companies differently. An individual is a UAE resident for the treaty if they are present in the UAE for at least 183 days in the calendar year. A company is a UAE resident for the treaty only if it is incorporated in the UAE and managed and controlled wholly in the UAE.
A director's Emirates ID, visa or personal certificate does not stand in for the company's certificate. If the company is in fact run from India, read place of effective management before anyone claims the treaty rate.
The Federal Tax Authority issues the UAE certificate. Its service page says a legal person applying for a treaty certificate must already have been incorporated for at least 12 months, and that the certificate does not cover any period after the start date you select. TrustNRI does not apply to the Federal Tax Authority. A UAE-licensed firm does that. We file Form 41 in India against the certificate you receive.
What the Indian payer still has to judge
Form 41 and a certificate support a treaty claim. They do not, by themselves, decide that the invoice is business profit, a royalty, or something else. Withholding on a payment to a non-resident still sits under section 195 (old Act). We do not state a new section number for that rule, because the successor number is disputed.
If the payer deducted too much in a year the company was actually entitled to a lower rate, the extra is dealt with in the Indian return for that year. That is a separate job from filing the form.