Banking & Borrowing

Overdrafts How They Work, Costs and What to Know

Understand overdrafts, arranged and unarranged borrowing, overdraft limits, interest and fees, eligibility, potential benefits and risks, and how to use an overdraft responsibly when managing your money.

✓ Clear banking education ✓ Practical cost guidance ✓ Responsible borrowing focus
Available overdraft £500
Current account overview Active
Available balance £1,240.00
Overdraft used £210
Used Limit £500
Account balance £1,030
Overdraft limit £500
Borrowing status Within limit ✓
Understanding Overdrafts

What is an overdraft?

An overdraft is a form of short-term borrowing linked to a bank account. It can allow you to spend more money than is currently available in your account, up to an agreed limit where an arranged overdraft is provided.

An overdraft can be useful for managing a temporary gap between money going out and money coming into your account. However, borrowing through an overdraft can cost money, and the cost can increase if the borrowing remains outstanding.

An overdraft is different from money you already have in your account. When you use an overdraft, you are effectively borrowing from your bank or account provider under the terms of the account.

How does an overdraft work?

If your account has an arranged overdraft, your provider may allow your balance to fall below zero up to the agreed limit. The provider may charge interest or other applicable costs depending on the account terms.

The exact overdraft limit, interest rate, fees and eligibility requirements vary between providers and accounts, so it is important to check the current terms before using one.

Key Concepts

Three overdraft terms worth understanding

Overdraft terminology can look complicated at first. These three concepts provide a useful starting point.

01

Overdraft limit

The maximum amount of arranged overdraft borrowing your provider has agreed to make available under the account terms.

02

Overdraft interest

The borrowing cost that may apply when you use an overdraft. The rate and charging method depend on the provider and account.

03

Available balance

The amount available to spend can take account of your account balance, pending transactions and any available overdraft facility.

Types of Overdraft

Arranged vs unarranged overdrafts

The distinction matters because the terms, availability and consequences can differ when you borrow beyond your normal account balance.

01

Arranged overdraft

An arranged overdraft is agreed with your bank or account provider in advance. You are given an overdraft limit that can be used according to the account's terms.

✓ A limit is agreed with the provider. ✓ Interest or other costs may apply. ✓ The limit can depend on eligibility and circumstances. ✓ The provider's terms explain how the facility works.
02

Unarranged overdraft

This generally refers to spending beyond an arranged overdraft limit or entering an overdraft without an agreed facility. The treatment depends on the provider and circumstances.

✓ It can occur when spending exceeds available funds. ✓ Payments may be treated differently by the provider. ✓ Additional risks can arise if payments are declined. ✓ Always check the current account terms.
Understanding the cost of borrowing
Cost depends on
Your account terms
Interest
Check rate
Duration
Matters
Limit
Varies
The longer borrowing remains outstanding, the more important it becomes to understand the applicable interest rate and account terms.
Overdraft Costs

How much does an overdraft cost?

The cost of an overdraft depends on the account provider, the overdraft arrangement and how much you borrow. Interest is a key cost to understand, but the exact charging structure can vary.

An overdraft can become expensive if it is used frequently or remains outstanding for a long period. This is why an overdraft is generally better understood as short-term borrowing rather than a permanent source of funds.

What affects the cost?

  • The amount borrowed.
  • The applicable overdraft interest rate.
  • How long the balance remains overdrawn.
  • Any applicable account or transaction charges.
  • The specific terms and conditions of the account.

Before using an overdraft, check the provider's latest pricing information so you know how borrowing is charged.

Weighing the Options

Benefits and risks of using an overdraft

An overdraft can provide flexibility, but it is still borrowing. Understanding both sides can help you make a more informed decision.

Potential benefits

An overdraft can be useful in certain short-term situations when used within an agreed limit and managed carefully.

✓ Can provide temporary access to additional funds.
✓ Can help cover a short gap between income and essential payments.
✓ Can be linked directly to an everyday current account.
✓ May offer flexibility without applying for a separate borrowing product.

Potential risks

Regular or prolonged overdraft use can make it harder to regain a positive account balance and may increase borrowing costs.

! Interest can increase the amount you need to repay.
! Frequent use can indicate that your regular income is not covering spending.
! Going beyond an arranged limit can create additional complications.
! Terms and availability can vary between providers.
Person reviewing personal banking information
Eligibility & Limits

Who can get an overdraft?

Overdraft eligibility is determined by the bank or account provider. Having a current account does not necessarily mean that an overdraft will automatically be available.

Providers may consider information about your financial circumstances and account history when assessing whether an overdraft facility is appropriate and what limit may be offered.

01
Account type The account needs to support an overdraft facility under its terms.
02
Provider assessment The provider may assess your circumstances before agreeing an overdraft limit.
03
Limit can vary The overdraft amount available can differ between customers and accounts.
04
Terms matter Check the interest rate, fees, limits and conditions before using an overdraft.
Responsible Borrowing

How to use an overdraft responsibly

An overdraft can be useful for short-term cash-flow gaps, but managing the borrowing deliberately can help prevent it becoming a regular financial dependency.

01

Know your limit

Understand the arranged overdraft limit and avoid assuming that the full amount is money you own.

02

Track your balance

Monitor your account regularly so you know when you are using borrowed money and how much remains outstanding.

03

Understand the cost

Check the current overdraft interest rate and any other relevant charges before relying on the facility.

04

Have a repayment plan

If you use an overdraft, consider how and when your account will return to a positive balance.

Practical Guide

Is an overdraft right for you?

An overdraft may be useful when you need short-term flexibility, but it should be considered alongside the cost of borrowing and your ability to bring the account back into a positive balance.

Consider why you need the overdraft

If you need an overdraft because of a one-off timing issue, it may serve a different purpose from an overdraft that is being used every month to cover regular living costs.

Look at the full cost

Compare the applicable interest rate, charges and account terms. A lower overdraft limit does not necessarily mean lower borrowing costs if the facility is used frequently.

Review your monthly cash flow

Looking at regular income and essential spending can help you identify whether an overdraft is solving a temporary timing issue or a recurring budget shortfall.

Consider alternatives where appropriate

Depending on your circumstances, other financial products or budgeting approaches may be more suitable. Compare the costs and terms rather than choosing a product solely because it is convenient.

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Frequently asked questions about overdrafts
Frequently Asked Questions

Questions about overdrafts

Overdraft rates, limits, eligibility and charging arrangements can vary between providers. Always check the latest account information before using an overdraft.

An overdraft is a form of short-term borrowing linked to a bank account. It can allow you to spend more than the money currently available, subject to the provider's terms and any agreed limit.
An arranged overdraft is an overdraft facility agreed with your bank or account provider in advance, normally with a specified borrowing limit.
An unarranged overdraft generally refers to borrowing beyond an agreed overdraft limit or entering an overdraft without an arranged facility. The treatment depends on the provider and circumstances.
An overdraft may involve interest or other applicable charges. The rate and charging structure depend on the account provider and current account terms.
An overdraft is a form of borrowing, but it works differently from a traditional fixed-term personal loan. It is normally connected to a current account and can provide flexible access to borrowing up to an agreed limit.
You may be able to use an arranged overdraft repeatedly, depending on your account terms. However, regular use can make it harder to return to a positive balance and can increase borrowing costs.
An overdraft limit can depend on the provider's assessment and account terms. Providers may review or change limits subject to applicable rules and their agreement with you.
Going beyond an arranged overdraft limit can affect how payments are handled and may create additional financial consequences depending on the provider and circumstances. Contact your bank if you are concerned.
An arranged overdraft can provide short-term flexibility in some situations, but it is still borrowing. Consider the cost and how you will return the account to a positive balance before relying on it.
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Important: GrowthSmartly provides general financial education and information. It does not provide personalised financial, investment, tax, legal, mortgage, insurance or banking advice. Overdraft rates, limits, eligibility, fees and account terms can change between providers. Check the latest information directly with the relevant bank or financial provider before making a financial decision.
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