When a Country Joins the Apostille Convention

When a country joins the Hague Apostille Convention, documents going between it and other members can use a single apostille instead of embassy legalisation. The change is not immediate. It takes effect on a set date several months after the country accedes, and not between the new member and any country that objects.

Key takeaways

• A country that accedes is not a member straight away. The Convention usually comes into force for it around eight months later, after a six-month window for objections.
• Any existing member can object to the accession, and then the Convention does not apply between those two countries.
• From the in-force date, Australian documents for that country need a DFAT apostille instead of DFAT authentication and embassy legalisation, unless Australia objected.
• Documents already legalised under the old route do not usually need redoing, but practice on the ground can take time to settle.
• Always check the HCCH status table on the day you prepare a document, because membership changes.

How does a country join?

A country that was not a party when the Convention was negotiated joins by accession: it deposits an instrument of accession with the Netherlands, which acts as depositary. Existing members are then notified and have six months to raise an objection. If a member objects, the Convention will not apply between it and the acceding country, although it can still apply between the acceding country and every member that did not object.

The Convention then comes into force for the acceding country on a set day after that six-month period ends, which in practice has meant roughly eight months after accession. That gap is why news that a country "has joined the Apostille Convention" can be misleading: for most of the following year, documents may still need legalisation. Our guide to how the Hague Apostille Convention works explains the Convention itself.

What have recent accessions looked like?

Recent accessions show the pattern clearly. The dates below come from the HCCH status table as we read it in September 2026. They are here to illustrate how the process runs, not as a substitute for checking the table on the day.

Country	Accession	In force	Note
Pakistan	8 July 2022	9 March 2023	Several members objected; Australia did not
China	8 March 2023	7 November 2023	Mainland China; Hong Kong and Macau already applied it
Canada	12 May 2023	11 January 2024	Replaced legalisation for Canadian documents
Bangladesh	29 July 2024	30 March 2025	Twelve members objected; Australia did not
Viet Nam	31 December 2025	11 September 2026	Some objections recorded
Thailand	30 June 2026	28 February 2027	Not yet in force at the time of writing

Two things stand out. Each in-force date is roughly eight months after accession. And objections are common, which means a country can be a member for some purposes and not others. Check the HCCH status table, which lists each party's dates and any objections.

What does an objection mean?

When an existing member objects to a country's accession, the Convention does not operate between those two countries. Documents between them still need the older route: authentication by the issuing country's authority and legalisation by the receiving country's embassy or consulate. Between the new member and every non-objecting member, apostilles apply as normal.

For Australians, the question that matters is whether Australia objected to the country your document is going to, or whether that country objected to Australia. Australia was not among the objectors for Pakistan or Bangladesh when we last checked. Objections can also be withdrawn later, so the position can change. The status table records objections against each country's entry.

Why do countries join?

Legalisation is slow and costly for everyone involved. A document may pass through a ministry at home, the foreign ministry, and then the embassy of every country that will receive it, each with its own requirements, queues and fees. The Apostille Convention replaces that chain with a single certificate from an authority in the issuing country, recognised by every other member that has not objected. For countries whose citizens study, work, trade and marry abroad in large numbers, joining removes a real burden, which is why accessions have continued steadily in recent years.

Joining also shifts work away from embassies. Once the Convention is in force, embassies of member countries generally stop legalising documents from other members, because an apostille does the job. That is one reason practice around the change date can be uneven.

Who issues apostilles in the new member?

Each member designates one or more competent authorities to issue apostilles on its public documents. Often this is the foreign ministry, but some countries designate courts, regional offices or other bodies, and some designate different authorities for different kinds of document. A new member announces its competent authorities when it accedes, and the HCCH publishes them.

For Australians receiving documents from a new member, this matters when checking that an apostille is genuine: it should come from one of that country's designated authorities. Many members also run online registers where an apostille can be verified by its number and date. In Australia, the competent authority is DFAT. Our guide to verifying an Australian apostille explains how that works here.

What if the country is not a member yet?

Until the in-force date, and permanently for countries that have not joined, Australian documents follow the legalisation route. If the document is private or a copy, a notary acts first. DFAT then authenticates the notary's or official's signature, and the destination country's embassy or consulate in Australia legalises the document. Each embassy sets its own rules, fees and appointment arrangements, so check them early.

What changes for Australian documents?

From the in-force date, an Australian document going to the new member, where neither country has objected, needs a DFAT apostille rather than DFAT authentication followed by legalisation at the country's embassy. That usually means one fewer step, one fewer fee and often less time. The rest of the process does not change: if the document needs a notary first, it still needs one, and translations are still whatever the receiving body requires.

The reverse applies to documents coming from the new member for use in Australia: an apostille from that country's competent authority replaces its embassy's legalisation, where an Australian body asks for authentication at all. Many Australian uses, such as most visa applications, rely on translations and copies rather than apostilles anyway. Our guides to DFAT authentication and consular legalisation explain the route being replaced.

What about documents prepared around the change date?

The change date creates some awkward cases. A document authenticated by DFAT and legalised by the embassy before the in-force date generally remains valid, and does not need redoing just because the country has since joined. A document prepared in the weeks before the change may need a decision: legalise it now under the old route, or wait for the in-force date and use an apostille.

Practice on the ground can also lag. Some offices in the new member country may take time to recognise apostilles, and some embassies may stop legalising documents on the change date, leaving no route for a document caught in between. If your timing is close, ask the receiving office what it will accept, and check the embassy's current notices. Our guide to choosing the right certificate type covers what happens when the wrong one is used.

How do you prepare a document for a newly joined country?

1. Check the HCCH status table for the country's in-force date and any objections involving Australia.
2. Confirm with the receiving office that it now accepts apostilles, especially in the first months.
3. Arrange any notarisation first, if the document is private or a copy.
4. Ask DFAT for an apostille rather than an authentication, from the in-force date.
5. Arrange translation as the receiving office requires, after the apostille.

What does this look like in practice?

Here is an illustration, not a real case. Hana needs a power of attorney for a property matter in Viet Nam in August 2026. She reads that Viet Nam has joined the Apostille Convention and asks DFAT for an apostille.

She then checks the HCCH status table and sees that the Convention only comes into force for Viet Nam on 11 September 2026. Because her lawyer needs the document before then, she follows the old route: notary, DFAT authentication and legalisation at the Vietnamese embassy. A friend with a similar document in October uses a DFAT apostille instead, after confirming the Vietnamese office will accept it.

In short

When a country joins the Apostille Convention, apostilles replace embassy legalisation, but only from the in-force date, usually around eight months after accession, and not between the new member and any country that objected. For Australian documents, that means a DFAT apostille instead of authentication and legalisation. Check the HCCH status table on the day, and ask the receiving office what it accepts during the changeover.

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