Safe Deposit Box

A safe deposit box (also safety deposit box, or bank locker in South Asia) is a secure, individually locked metal box kept inside a bank's vault and rented to a customer for storing valuables and documents. The customer pays an annual fee, one of the bank charges listed in its tariff, holds a key or code, and can visit during opening hours to add or remove items. The bank controls access to the vault but, in normal practice, does not know what is inside the box.

A safe deposit box is a storage service, not a bank account. Its contents are not a deposit in the banking sense, so they do not belong to the bank, do not earn interest and are not covered by deposit insurance. People use boxes for jewellery, collectable coins, physical gold, wills, deeds, share certificates, passports and family papers.

Renting a safe deposit box is like renting a tiny storage unit inside a fortress. The bank builds the strong walls, the alarm and the guarded door, and you get your own locked drawer inside, far stronger than a cash box kept at home. Nobody, including the bank, is supposed to open your drawer without you.

Money in an account is different: the bank takes it, uses it and promises to pay back the same amount. Things in a box stay yours and stay exactly as you left them. The bank never knows what is there, which keeps your privacy but also means that if something goes missing, proving what was in the box is up to you.

A customer signs a rental agreement, shows identification as part of Know Your Customer checks, and chooses a box size. Most boxes use dual control: the bank holds a guard key and the renter holds the renter's key, and both are needed to open the box. At each visit the renter signs in, a member of staff such as a cashier or vault officer lets them into the vault and unlocks the guard side, and the renter usually examines the box in a private room. Some newer facilities use biometric access instead of keys.

Boxes can be rented jointly, and the agreement sets who may access them. If the renter dies, access is normally limited to executors or legal heirs once the bank sees the proper documents, such as a grant of probate. If rent goes unpaid for a long period, banks may drill the box open under procedures set by law and contract, and in the US unclaimed contents can eventually pass to the state under unclaimed property laws.

Courts have long disagreed on how to classify the arrangement. Most US courts treat a paid box as a bailment for hire: the bank, as bailee, must take ordinary care of the box and is liable if loss results from its negligence. A minority treat it as a lease of space, closer to landlord and tenant. Courts in India have stressed that bailment needs the bank to know of and control the goods, which it usually does not. In practice, the rental agreement sets the bank's duties and often caps its liability.

Some regulators have stepped in. The Reserve Bank of India's revised locker rules, effective from January 2022, require banks to compensate customers up to 100 times the annual rent where loss arises from events such as fire, theft, burglary, building collapse or fraud by bank staff, while excluding natural disasters that are not the bank's fault.

The contents of a box are generally uninsured unless the renter arranges cover. The US Federal Deposit Insurance Corporation states plainly that safe deposit boxes are not deposits and are not insured by the FDIC; the same is true of the UK's Financial Services Compensation Scheme. Bank insurance protects the bank, not the renter's items. Renters are advised to:

• Check whether their home or contents policy covers items kept in a bank vault, or buy a specific policy.
• Keep an inventory and photographs of the contents somewhere outside the box.
• Avoid storing cash in large amounts, which earns nothing, may break the rental terms and can be hard to prove after a loss.
• Keep the original will elsewhere or a copy accessible, since the box may be sealed after death.

Many banks have retreated from safe deposit boxes because vault space is costly, the service makes little money and the risks, including theft, legal disputes and money laundering concerns, are hard to control. In the UK, HSBC and Barclays stopped offering boxes to new customers around 2010 and had withdrawn from the service in their UK branches by 2015, and other high-street banks have scaled back sharply; Metro Bank is one of the few that still offers them. Private, non-bank vault companies have filled much of the gap. In 2021 a US federal operation against a private vault firm in Beverly Hills, in which boxes were seized, drew wide attention to the limited legal protection renters may have.

In South Asia, bank lockers remain widely used, particularly for gold jewellery, and demand often outstrips supply at urban bank branches. For property where the owner wants the bank to hold and record the asset, the alternative is formal custody, where the institution knows what it holds and is responsible for it.

• FDIC: Understanding deposit insurance
• Reserve Bank of India