Investment Account

Keep you posted

Straightforward savings by post with easy access to your money

Investment Account: facts and figures

  • Rate 0.45% gross/AER
  • Access No notice, no penalty
  • Tax Taxable, paid gross

Suitable for savers who want:

  • a straightforward savings account by post
  • easy access to their money
  • a savings account on behalf of their child or grandchild

Not for savers who:

  • want a fixed rate of interest
  • need a regular income from their savings
  • want to use their account online and by phone
  • prefer to use their account at a branch

Opening an Investment Account

Summary box: key product information

Account name

NS&I Investment Account

Interest rates

Variable, credited annually

Tax status

Taxable, paid gross

Conditions for bonus payment

Not applicable

Withdrawal arrangements

No notice, no penalty


Apply, deposit and withdraw by post


Gross is the taxable rate of interest without the deduction of UK Income Tax.

AER (Annual Equivalent Rate) is a notional rate that illustrates what the annual rate of interest would be if the interest was compounded each time it was paid. Where interest is paid annually, the quoted rate and AER are the same.

Using your account

Using your account

You can only use your Investment Account by post.

When you make a cheque deposit or withdrawal, we’ll send you a record of your transaction. We’ll also send you a statement every January showing you all your transactions, plus your interest.

  • Paying money in and taking it out

    Pay in by standing order, bank transfer or cheque. All your deposits must be from a UK bank account in your own name.

    Standing order

    Give your bank our payee details:

    Payee name: NS&I
    Account number: 11994808
    Sort code: 08 31 30

    You must quote your Investment Account number as the reference, so that the payment reaches the right account.

    Tell the bank how much you want to pay, when and how often.


    Print and complete a standing order form and give it to your bank

    To cancel, contact your bank – not NS&I.

    Bank transfer

    You can make one off deposits by bank transfer. Give all the above details to your bank and tell them how much you want to pay. For large amounts, check your bank’s upper limit for electronic payments.

    Post a cheque

    Complete a deposit form and send it to us with your cheque (minimum £20).

    Print and complete a deposit form

    Take money out

    The minimum you can withdraw is £1 and at least £1 must remain in your account to keep it open.

    Complete a withdrawal form and send it to us. We’ll pay the money into your nominated bank account. Or you can ask us to send you a warrant (like a cheque).

    Print and complete a withdrawal form

    We’ll send your payment within three working days.