What a single status declaration is (in Dutch immigration terms)
A single status declaration (also called an unmarried status declaration) is a document used to show that a person is not married and/or has no legal impediment to marriage, particularly in their home country of Nigeria. There are typically different names for it, including bachelorhood certificate, spinsterhood certificate, affidavit of bachelorhood, and certificate of no impediment. However, the goal is the same: prove your civil status. And for the purpose of the Netherlands in particular, an affidavit is not enough. You need BOTH the affidavit of bachelorhood (or spinsterhood as the case may be) and the single status certificate or letter.
For Dutch processes, this document can show up in two common situations: (1) IND partner routes where the applicant and sponsor are not married/registered partners, and (2) municipal or civil-status processes where the municipality needs proof of marital status. The exact requirement depends on the route and checklist you are following.
The IND rule that matters most: the 6‑month validity window
Many applicants assume that once a document is legalized (i.e. authenticated by Nigeria’s Ministry of Foreign Affairs), it is acceptable forever. The IND clarifies that for most civil documents it does not check the issue date once properly legalized, because the facts are definite (for example, a birth certificate).
But the IND makes a clear exception: it accepts a single status declaration only if it is not older than 6 months. This is the rule that causes the most wasted time for Nigerian applicants, because people often obtain the document early and only later discover it has ‘expired’ for IND purposes.
Where this requirement appears (IND forms/appendices)
In IND partner paperwork, the unmarried status requirement appears explicitly. For example, IND application materials for unmarried partner routes refer to ‘unmarried status declarations’ and state that the declaration must not be older than 6 months.
Some IND forms also mention a second layer: if the applicant has lived continuously in another country (besides the country of origin), the IND may require an unmarried status declaration from that country as well. This is why the cover letter template in this kit includes a place to list both the country of origin declaration and the continuous-residence declaration (if applicable).
Nigeria-specific checklist
NetherlandsWorldwide provides Nigeria-specific guidance on certificates of unmarried status. It states that to prove you are unmarried, you may need two documents:
- A single status certificate (affidavit of bachelorhood/spinsterhood) obtainable from the High Court in the state where you live or most recently lived.
- An attestation of marital status obtainable from the local authority in that state.
This is a powerful detail because it tells you what Dutch authorities may expect when the person’s country of origin is Nigeria. It also helps you avoid submitting only one document when two are expected.
Legalization and translation
For Nigerian documents which include single status certificates or declarations, NetherlandsWorldwide states that to use a document in the Netherlands you must first have it legalized by Nigeria’s Ministry of Foreign Affairs (MFA). The IND also points applicants to NetherlandsWorldwide for country-specific legalization instructions.
For translation, the IND states: if your document is not written in Dutch, English, French, or German, then you must translate it into one of those languages. Many Nigerian documents are in English, which can reduce translation steps, but always verify with your receiving authority’s checklist.
What ‘not older than 6 months’ means (simple examples)
Think of it as a calendar window. Example:
- If your single status declaration was issued on 1 October 2025, it is generally acceptable for IND submission up to (roughly) 1 April 2026.
- If you submit on 10 April 2026, that same document is likely too old for IND purposes, and you risk a request for a newer declaration.
Because months have different lengths, don’t do guesswork. Compare the issue date to your actual submission date and keep a buffer so you don’t cross the line due to delays.
Mini-check before you click submit
- Issue date within 6 months on the day you submit (not the day you started preparing).
- Names match passport exactly (including middle names).
- Document is complete and readable (all pages, stamps, signature).
- Legalization proof is in the same bundle (where required).
- If required, the country-of-origin declaration and country-of-continuous-residence declaration are both included.
Timing strategy: how to avoid ‘expiry’ without rushing
Because of the 6‑month rule, the biggest success factor is timing. Use this simple approach:
- Work backwards from your planned application submission date.
- Plan to obtain and legalize the unmarried status document as close to submission as is realistically possible (while still allowing time for legalization).
- Keep proof of issue date clearly visible in your scanned copy.
- If you delay submission significantly, re-check the dates—do not assume you are still within 6 months.
If you are using a service provider for processing/legalization, give them your planned submission window so the issuance date stays valid when you actually submit.
How to package your single status document for the IND (clean bundle)
A clean unmarried-status bundle typically looks like this:
- Cover letter + compliance checklist (from this kit)
- Single status declaration (and, for Nigeria, the attestation of marital status if required)
- Legalization proof where required (e.g., Ministry of Foreign Affairs legalization evidence)
- Translation (NOT usually required for Nigerian documents, since they are in English)
Put the cover letter on top. The reviewer should immediately see (1) issue date, (2) that it’s within 6 months, and (3) that legalization/translation status is clear.
Common mistakes Nigerians should avoid
- Getting the document too early (issue date older than 6 months at submission).
- Submitting only one unmarried-status document when the Nigeria guidance expects two.
- Submitting without MFA legalization where required.
- Name mismatch (middle name order, missing surname, spacing).
- Submitting screenshots with missing stamps, signatures, or page edges.
Fix identity inconsistencies first. If your name is inconsistent across documents, handle that before you submit single status evidence.
FAQs
Is a single status declaration the same as a marriage certificate?
No. A marriage certificate proves you are married. A single status declaration is used to show you are not married (or there is no impediment).
If my document is in English, do I still need translation?
The IND states it accepts documents written in Dutch, English, French, or German without translation. If your document is in another language, translate it into one of those. Always confirm any additional requirements in your route checklist.
What if I lived in another country for years?
Some IND forms refer to ‘country of continuous residence’ and may require an unmarried status declaration from that country as well. Follow your route checklist and list both documents in your submission if required.
Related Resources:
How to prepare a single status affidavit in Nigeria for marriage abroad
Authentication of Single Status Certificate (Bachelorhood or Spinsterhood) in Nigeria