There may come a time when you need an official to validate a document. There are two main options available to you if you want to do this. The most common methods are a notary public and a commissioner of oaths, as both services allow you to validate your document. However, knowing which one is more suitable is not always obvious.This guide will outline both services and what they do, and will discuss when and where each method is most appropriate.
If you require a notary public to validate your documents, MSC Notaries offers professional notarisation services. Contact us today to speak with our team
What is a Notary Public?
A notary public is a legally qualified professional who is authorised to verify, certify, and authenticate documents. A key distinction is that notary publics are needed when documents need to be verified for use outside the UK.
What does a Notary Public do?
- Verify identities and witness signatures.
- Certify copies of documents.
- Prepare and authenticate legal documents.
- Administer oaths and affirmations.
- Notarise documents for international use.
What is a Commissioner of Oaths?
A commissioner of oaths is authorised to administer oaths, affirmations and statutory declarations. People may opt to use this service if they want documents verified, but only for use in the UK.
- Administer oaths and affirmations.
- Witness affidavits and statutory declarations.
- Certify copies of documents for domestic purposes.
Key Differences Between a Notary Public and a Commissioner of Oaths
| Feature | Notary Public | Commissioner of Oaths |
| Scope of Authority | Broad legal powers | Limited to oaths and declarations |
| Primary Use | International documents | Domestic UK documents |
| Recognition | UK and international | Mainly UK only |
| Typical Documents | Powers of attorney, contracts, and overseas paperwork | Affidavits, statutory declarations |
| Cost | Usually higher | Usually lower |
How to Decide Between a Notary Public and a Commissioner of Oaths?
When deciding which route to take, it depends on your circumstances. If the document is needed for use outside of the UK, then you will most likely need a notary public. However, if it is a sworn statement or an affidavit for use in the UK, a commissioner of oaths should suffice.
MSC Notaries provides professional notary services and can help ensure your documents are validated correctly. Get in touch today.
When the Law Requires Each Method
Certain documents have specific legal requirements about who can certify or witness them. Many UK government forms, court affidavits, and property deeds must be signed in front of a commissioner of oaths. Documents that will be used outside the UK, such as powers of attorney, international contracts, or immigration paperwork, usually require a notary public.
A commissioner is fine for domestic documents, but a notary adds authority and international recognition, making them ideal for documents used abroad. Understanding these requirements helps ensure you choose the right professional from the start, avoiding delays or rejected documents.
How Much Does Each Service Cost?
When making a decision, a key factor may be the cost, as you don’t want to spend money unnecessarily. Additionally, you do not want to waste money on a service that is not useful to you.
A commissioner of oaths is usually the more cost-effective option for domestic documents, with fees often low or included with other legal services. A notary public, on the other hand, typically charges more because of the extra legal authority and international recognition they provide. Notarising documents for use abroad can cost more, but it ensures your paperwork will be accepted overseas.
Please see our pricing guide below for the differences between a notary public and a commissioner of oaths.
| Service | Typical Cost | Typical Turnaround Time |
| Commissioner of Oaths | £5–£20 | Usually, the same day |
| Notary Public | £50–£150 | Same day to a few days, depending on the document and apostille requirements |
At MSC Notaries, we can help with the notarisation of your documents. Get in touch today, and our team will be happy to assist you
How to Prepare Your Documents Before Certification
Before visiting a notary or commissioner of oaths, it’s a good idea to prepare your documents properly. This can save time and avoid errors. Some tips include:
- Ensure all documents are complete and, where necessary, signed.
- Bring valid photo identification to confirm your identity.
- Make clear copies if certification of duplicates is needed.
- For notarisation, check whether your documents require an apostille and/or consular legalisation for international use.
Preparing your documents in advance helps the process go smoothly and avoids the frustration of having to return later.
Conclusion
Understanding the difference between a notary public and a commissioner of oaths can save you time, money, and unnecessary stress. Always check whether your document needs domestic or international certification before choosing the right professional.
At MSC Notaries, we provide professional document notarisation services. If you need your documents notarised, contact us today!
