Cash ISA Calculator

A cash ISA calculator can be a useful tool for savers, as it can be used to calculate an estimate of how much interest you could potentially earn from a particular cash ISA deal.

 

If you are interested in opening a cash ISA in 2014-15, it's a good idea to take the time to compare different cash ISAs, to find an account that could be most beneficial to you.

 

Our cash ISA comparison tables below present the details of a range of leading cash ISA deals available, so take a look at what each provider could offer you:

Cash ISA Selection
ProviderPlan NameDeposit TakerISA OptionTermMaximum Potential ReturnMore Info
Retirement Deposit PlanInvestec Bank plcyes6 years

3.75%

per year, plus 22.5% at end of term

More Info >
  • 3.75% annual payments from capital
  • 77.5% remainder of initial deposit paid at end of term
  • Potential 22.5% growth return at end of term, if the Index is higher than 90% of Initial Value
  • Capital protected
  • Low minimum - £3,000
  • Short/medium alternative to fixed rates
  • Available for Cash ISA and  ISA Transfers 
  • Covered by the FSCS (Financial Services Compensation Scheme)
  • Limited offer - deadlines apply. May close early if oversubscribed
  • Only available for new ISA investments or ISA transfers, not direct investments
  • Plan designed to be held for full term
  • Arrangement fee applies
  • Returns not guaranteed. You may only receive a return of your original capital
4 Year Deposit PlanInvestec Bank plcyes4 years

12%

at end of term

More Info >
  • 12% fixed return if the Index is higher
  • Capital protected
  • Low minimum - £3,000
  • Short/medium alternative to fixed rates
  • Available for Cash ISA, ISA Transfers and non-ISA
  • Covered by the FSCS (Financial Services Compensation Scheme)
  • Limited offer - deadlines apply. May close early if oversubscribed
  • Plan designed to be held for full term
  • Arrangement fee applies
  • Returns not guaranteed. You may only receive a return of your original capital
6 Year Defensive Deposit PlanInvestec Bank plcyes6 years

24%

at end of term

More Info >
  • 24% fixed return if the Index is higher than 95% of its Initial Level
  • Capital protected
  • Low minimum - £3,000
  • Medium/longer term alternative to fixed rates
  • Available for Cash ISA,  ISA Transfers and non-ISA
  • Covered by the FSCS (Financial Services Compensation Scheme)
  • Limited offer - deadlines apply. May close early if oversubscribed
  • Plan designed to be held for full term
  • Arrangement fee applies
  • Returns not guaranteed. You may only receive a return of your original capital
Important Information: Structured deposits offer you the potential to earn higher returns than you would with a regular savings account. Your returns are based on the performance of an index or commodity. If the investment does not perform well you may receive no income or capital growth, but you can be confident that your capital will be repaid. You have no access to your deposit during the term of the account, typically 3 to 6 years but your original capital will be repaid in full at the end of the term. In the event that the deposit taker is unable to repay your initial investment and any returns stated you may be entitled to compensation from the Financial Services Compensation Scheme (FSCS) depending on your individual circumstances.
Instant Access Cash ISAs
ProviderAccountInterest RateTermApply
0.75%Easy AccessApply Now >
  • Earn 0.75% tax free/AER variable
  • Save from just £100
  • Interest calculated daily and paid in March
  • Online access only
  • Partial ISA transfers out not available - transfers out in full only
0.80%30 Days NoticeApply Now >
  • Manage your account online
  • Unlimited withdrawals subject to 30 days notice
  • Transfer from other cash ISA providers
  • Covered by the FSCS (Financial Services Compensation Scheme)
  • Must be UK resident and aged 18 or older
  • Minimum opening balance of £1,000
0.75%Instant AccessApply Now >
  • Instant access
  • 0.75% AER/Gross
  • Minimum deposit £1
  • Open and manage your account online or in branch
  • Covered by the FSCS (Financial Services Compensation Scheme)
  • Must be 16 or older
Fixed Rate Cash ISAs
ProviderAccountInterest RateTermApply

1.20%

per annum

3 YearApply Now >
  • Manage your account online
  • Withdraw cash early if you need to (subject to loss of interest)
  • Transfer from other cash ISA providers
  • Covered by the FSCS (Financial Services Compensation Scheme)
  • Must be UK resident and aged 18 or older
  • Minimum opening balance of £1,000

1.15%

per annum

2 YearApply Now >
  • Manage your account online
  • Withdraw cash early if you need to (subject to loss of interest)
  • Transfer from other cash ISA providers
  • Covered by the FSCS (Financial Services Compensation Scheme)
  • Must be UK resident and aged 18 or older
  • Minimum opening balance of £1,000

0.95%

per annum

1 YearApply Now >
  • Manage your account online
  • Withdraw cash early if you need to (subject to loss of interest)
  • Transfer from other cash ISA providers
  • Covered by the FSCS (Financial Services Compensation Scheme)
  • Must be UK resident and aged 18 or older
  • Minimum opening balance of £1,000

How does a cash ISA calculator work?

 

Most cash ISA calculators tend to work in the following way:

 

  1. You enter the size of the sum to deposit (at this stage you may also be asked to specify how much you plan to deposit each month).
  2. You would also enter the interest rate of a particular cash ISA, as well as the amount of years that you intend to leave the funds in the account.
  3. Certain cash ISA calculators will also allow you to specify your tax bracket, to allow for a more accurate calculation.
  4. Using the information you have provided, the cash ISA calculator would then be able to produce an estimated amount that your savings are predicted to grow to if you do not make any withdrawals.

 

Cash ISA calculators can useful for getting a rough idea of how your savings could grow in the future. However, it's important to remember that any amounts quoted by a cash ISA calculator are only estimates and therefore should not necessarily be taken as definitive. It is best to use a cash ISA calculator as a means to get a general idea of how much interest you could expect to earn from an account. When shopping around for a cash ISA, it would also be worth considering factors apart from this, such as the individual terms offered on each account.

 Important Risk Information:

This website contains information only and does not constitute advice or a personal recommendation in any way whatsoever. The value of investments and income from them can fall as well as rise and you may not get back the full amount invested.

Investments in Stocks & Shares ISAs do not contain the same degree of capital security as investments in deposits. Stocks and shares ISAs are designed as medium to long term investments of, for example, five years or more. The tax efficiency of ISAs is based on current tax law and there is no guarantee that tax rules will stay the same in the future.

Different types of investment carry different levels of risk and may not be suitable for all investors. Please ensure that you read the Important Risk Information for further details. Prior to making any decision to invest, you should ensure that you are familiar with the risks associated with a particular investment and should read the product literature. If you are in any doubt as to the suitability of a particular investment, both in respect of its objectives and its risk profile, you should seek independent financial advice.