At 16, is it your savings or another adult’s?
The name on the holding decides the route. At 16, you may manage eligible savings in your name. You cannot simply take over another adult’s NS&I account.
Choose your route in 30 seconds
If NS&I names you as the holder, check the product and your age. You may need online registration, new details, or proof of identity. If it names another adult, do not register or withdraw first. Show authority that NS&I accepts.
- Your name, aged 16 or over: check ownership, product rules, and how to set up your access.
- Another living adult’s name: check whether a registered lasting power of attorney or deputyship applies.
- A deceased person’s name: estate work, probate, or letters of administration may be needed.
An adult saver keeps control while they have mental capacity. This means they can understand and make the decision in question. A relative cannot take that role because help seems easier.
The account name matters more than family ties.
At 16, control may change but a junior ISA stays locked
At 16, a young person may take more responsibility for eligible NS&I savings. A Junior ISA cannot normally be withdrawn until age 18.
At 16, you can usually manage an NS&I Junior ISA yourself. Follow the product’s registration route. At 18, it matures. It can usually stay in an adult ISA, move by ISA transfer, or be withdrawn.
NS&I product rules are not interchangeable. A Premium Bonds withdrawal process is not a general NS&I withdrawal form.
| NS&I product | Age point | Who may act | Usual route | Key restriction |
|---|
| Premium Bonds | Held by adults or children | Holder, or accepted representative | Online or post, product dependent | Cannot normally transfer to a living relative |
| Junior ISA | Management may change at 16; access at 18 | Registered contact, then young person | Registration or form | Funds normally locked until 18 |
| Direct Saver or Income Bonds | Adult account rules apply | Holder or accepted authority | Online where enabled, otherwise post | Authority must be recorded correctly |
| Investment Account | Older holdings may vary | Holder or accepted authority | Often postal for older cases | Check current product service rules |
| Guaranteed Growth or Income Bonds | Adult account rules apply | Holder or accepted authority | Terms and product instructions | Fixed-term or withdrawal terms may apply |
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A simple savings record book can help with an old NS&I holding. It helps where an address changed, a holder number is missing, or papers conflict. Keep account clues and contact dates together. Never write passwords in it.
- Keeps bond numbers, product names, and old addresses in one place
- Creates a clear record of forms sent and NS&I contact dates
- Helps an attorney keep the donor’s money apart from personal finances
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Turning 16 does not make a Junior ISA spendable cash. You can usually manage it from 16, including checking the balance and changing contact details. The money remains locked.
At 18, a cash Junior ISA usually becomes an adult cash ISA. You can withdraw it, keep it invested, or arrange an ISA transfer. Your provider’s process still applies.
Management rights do not mean early withdrawal rights.
This differs from ordinary NS&I savings. The right to manage an account at 16 does not create Junior ISA withdrawal rights before 18.
To manage an adult’s savings, prove authority first
To manage another adult’s NS&I savings, show legal authority to act in relation to their money. This may be a registered lasting power of attorney, deputyship order, probate, or letters of administration.
An attorney acts for a living donor under an LPA. A valid enduring power of attorney may also apply. A deputy is appointed by the Court of Protection. An executor acts after death.
- Identify the product: Premium Bonds, Junior ISA, Direct Saver, Income Bonds, or an older NS&I holding.
- Collect holder details: full name, former names, birth date, current and past addresses, and any holder number.
- Keep your details ready: name, address, phone number, and identification that NS&I asks for.
- Prepare authority evidence: registered LPA, deputyship order, probate, or letters of administration.
- Check form requirements: some routes need witness details, a witness signature, or a set declaration.
- Use the National Insurance number when asked: this often applies when a young person takes control of eligible savings.
Match the product to the evidence NS&I may need. A holder may use NS&I online access after identity checks. An authorised representative usually needs to show the authority document first.
A Premium Bonds withdrawal may need the holder’s checked details. A death, attorney, or deputy request may need a form. It may also need certified evidence or evidence NS&I accepts.
Telephone support can confirm the next step. It may not replace postal papers when NS&I must check authority or identity.
Family help is not legal authority.
If NS&I access fails, recover the account safely
A failed online registration usually means NS&I cannot match your details. It does not mean the savings have disappeared.
Check the holder’s exact name against old certificates, tax papers, and bank records. Check middle names, former surnames, and old addresses. An attorney must not use the donor’s password or email address.
Postal handling can be normal for old holdings and lost certificates. It can also apply to hard-to-find accounts or authority papers. Contact NS&I through its official route. State if you are the holder or an authorised representative.
Keep dated copies of every item sent.
This guidance is less relevant if the saver can manage their own adult account. It also does not apply to money held outside NS&I. It is not for choosing new Premium Bonds or a new Cash ISA. In those cases, compare product terms instead of changing account authority.
If registration still fails, ask NS&I to search all account clues. Give old holder numbers, bond numbers, and past addresses. Identity checks may fail if records show an old surname or address.
Do not keep creating new online registrations. An authorised representative should state their role. They should not try the saver’s digital login. If online access fails, ask for the postal route. Ask if the holding is postal-only, dormant, linked to an older record, or awaiting authority papers.
Keep forms, identification, and posting proof until the case ends.
Common questions
Can I manage my mum’s NS&I savings without power?
No. Being an adult child does not give you authority. NS&I normally needs legal authority that it accepts.
Can I withdraw a Junior ISA when I turn 16?
No. A Junior ISA normally stays locked until age 18. You may take over management at 16.
Are NS&I savings protected if the bank fails?
NS&I savings have a 100% HM Treasury backing. They do not rely on the FSCS limit.
Can I transfer Premium Bonds to my son?
No. Premium Bonds cannot normally move to a living family member. The holder can cash them in under current NS&I rules.
How much can I withdraw from NS&I Premium Bonds?
You can usually cash in some or all eligible Premium Bonds. Current NS&I rules and account checks still apply.
Can two people hold an NS&I savings account?
No. NS&I savings products are generally in one person’s name. They are not normally joint accounts.
Lo esencial:- Turning 16 may change who manages your savings, but a Junior ISA stays locked until 18.
- A spouse, child, or carer needs recognised legal authority for another adult’s NS&I account.
- Product type matters because Premium Bonds, ISAs, and older holdings have different access rules.
- A failed online match often means record errors or postal service, not missing savings.
Learn more
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