Instant Access Saver

Save when you like, take it out when you need.

3.40
% AER
  with Top Up rate
24/7 access to your funds
Unlimited withdrawals and deposits
Variable interest rate
*The AER includes a 
Top Up rate for 12 months from account opening. After 12 months, the rate reverts to the standard variable rate of 
3.15
% AER.
Top-up applied
Valid until 3rd Sep 2026
Rainy Day Fund
Account Opened
Instant Access Saver
£500.00
Moneyfacts
Best App-Only
Savings Provider
2025
Moneyfacts
Voted Best
Customer Service
2025
Account Overview

Compare our Savers

Already used your tax-free allowance in an ISA? Compare our flexible Instant Access Saver account next to our Fixed Term Saver accounts.

Account type
Term
Interest rate
Access funds
Summary box
No term
3.40
% AER variable
24/7 access
1 year
18 months
2 years
3 years
5 years
4.99
% AER
5.06
% AER
5.08
% AER
5.06
% AER
4.95
% AER
At term end

Helpful tip!

AER stands for Annual Equivalent Rate and illustrates what the interest rate would be if interest was paid and compounded each year. This allows you to compare what return you can expect from your savings over time. Tax-free means interest is exempt from UK Income Tax under current HMRC ISA rules. Tax treatment depends on individual circumstances and may change in the future.

Fancy a tax-free Cash ISA instead?

Earn up to 

5.16

% AER tax-free.

ACCOUNT FEATURES

Why choose our Instant Access Saver?

With our Instant Access Saver, you’re in full control. You choose when, how much and how often you save, with full access to your money if you need it.

24/7 access

Have quick access to your money with unlimited deposits and withdrawals.

No minimum deposit

Add as little or as much as you like, up to £250,000.

Monthly interest

Earn interest daily, paid into your account monthly. 

Variable interest

The rate can go up or down but if its going down we will always give you a heads up first.

Rainy Day
Account Opened
Instant Access Saver
£500.00
Emergency Fund
Account Opened
Instant Access Saver
£3,500.00

Heads up!

AER stands for Annual Equivalent Rate and illustrates what the interest rate would be if interest was paid and compounded each year. This allows you to compare what return you can expect from your savings over time.

You're in safe hands

We’re a fully regulated UK bank so you can rest easy knowing that your money is protected, up to £120,000 by the Financial Services Compensation Scheme (FSCS), the UK’s deposit guarantee scheme.

AWards and Reviews

That's enough from us, hear it from those who matter

See what others have to say
Join 150,000+ on the app
Moneyfacts
Voted Best
Customer Service
2025
Best app-based savings provider
FAQs

Got a question?

We’ve got answers! Explore our most common savings questions, or head to our full FAQ page to find more.

Can I have more than one regular transfer set up?

At the moment, you can only have one regular transfer in place.

How do I edit or cancel a regular transfer?

You can easily cancel and set up a new regular transfer within the Tandem app. Just head to your Instant Access Saver account and tap on your regular transfer to find your options.

How do regular transfers work?

Regular transfers let you automate moving money from your external UK current account into your Tandem Instant Access Saver. Just set up how often you want money transferred – daily, weekly, fortnightly or monthly. This way, you steadily build up your savings without even thinking about it!

To set up a regular transfer, open the Tandem and go to your Instant Access Saver account. Tap ‘Set up a regular transfer’ and follow the steps to get started.

Can I save for different goals?

Yes. You can open up to 20 Instant Access Savers in the app and give each one a name, like "Holiday" or "Emergency fund". Each account earns its own interest, and you can pay into or withdraw from it directly.

Why can’t I fund my Instant Access Saver from an overseas current account?

We are only able to accept money transferred from a verified UK bank account. This provides fraud protection for both Tandem and you.

Can I have more than one Instant Access Saver?

Yes. You can open up to 20 Instant Access Savers in the app, with a combined balance of up to £250,000.

Where do I find the sort code and account number of my Instant Access Saver account?

Simply open the app, tap on your Instant Access Saver account and then select the‘Info’ icon to access your account details.

Can I transfer money in from a bank account other than my connected account?

No, we can only accept money from a bank account that we have verified as belonging to you. We will return any money sent from accounts that haven’t been verified.

If you wish to transfer funds from a different account, select ‘Connect a new current account’ through the ‘Pay in via Open Banking’ screen in the app. Once we’ve verified this new account, you can then transfer money in and out of it.

If you need more assistance with connecting another account, feel free to use our in-app chat or call 0203 370 0970 and we’d be happy to help.

What happens if I withdraw all funds during the month?

Your interest will calculate up until the point you remove the funds and will apply on to the account on the anniversary of the date you first funded it.

When is interest paid on the Instant Access Saver?

Interest is calculated daily and compounded into your Instant Access Saver on a monthly basis. The interest will be applied to your account each month on the same date you first funded it. You’ll receive an SMS when your interest has been added and your statement is ready to view in the app.

How does an Instant Access Saver account work?

An Instant Access Saver is an account that will pay interest monthly on the money you put in. You can save as little or as much as you want up to £250,000. You can withdraw money, and pay money in, whenever you want.

Ready to make your money do more?

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Start growing your money

Can't find what you're after?

Check out our FAQs for answers to your burning questions, or give our friendly support teams a shout.

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Available on both the App Store and Google Play.
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