If you live in Texas and need to buy, sell, or inherit land in Nigeria, you will almost certainly sign a power of attorney letting a relative or lawyer in Nigeria act on your behalf. Before that document has any effect in Nigeria, it must be fully legalized — and because Nigeria is not part of the Hague system, an apostille by itself will not do the job.
This page walks through the complete authentication chain and the extra land-law hurdles that catch many owners by surprise.
What an apostille is
An apostille is a certificate that authenticates a public document — a notary's signature, a court seal, a registrar's certification — so it will be accepted by authorities in another country. For countries in the Hague Apostille Convention, the apostille is the finish line. For countries outside it, the same Texas certificate is the first step in a short legalization chain.
Does an apostille work in Nigeria?
No. Nigeria is not a member of the Hague Apostille Convention, so an apostille on its own has no legal effect there. Your Texas document must instead go through the full legalization chain:
- Notarize the document (for a power of attorney, sign before a Texas notary).
- Texas Secretary of State authentication.
- U.S. Department of State authentication (Washington, DC).
- Nigerian Embassy (Washington, DC) or Consulate (New York) legalization.
Watch the consular jurisdiction carefully — which Nigerian mission handles your document can depend on the U.S. state where it was issued, so confirm before you mail anything.
How the Texas Secretary of State apostille works
Texas apostilles come from a single office: the Secretary of State's Authentications Unit in Austin. There is no county-clerk step — a document notarized by any Texas notary, in any of the 254 counties, goes straight to the state. Since October 2023 Texas issues one Universal Apostille (Form 2102) that works for every destination, whether or not the country belongs to the Hague Apostille Convention.