We’d like to remind Forumites to please avoid political debate on the Forum.

This is to keep it a safe and useful space for MoneySaving discussions. Threads that are – or become – political in nature may be removed in line with the Forum’s rules. Thank you for your understanding.

📨 Have you signed up to the Forum's new Email Digest yet? Get a selection of trending threads sent straight to your inbox daily, weekly or monthly!

AER rates after tax?

Hello...

I'm just trying to compare like-for-like in terms of interest rates, but need to figure out what the interest rate is after tax.

For instance, if Any Bank has an interest rate of X% AER, what's the formula for figuring out what the interest rate is after the basic rate of tax is taken off?

Thanks for your help :)

Andrew
«1

Comments

  • Multiply by 0.8
  • mum2one
    mum2one Posts: 16,279 Forumite
    Xmas Saver!
    Hi
    The simplisest way to work out the interest rate, use an example 6.5% gross

    6.5 / 100 x 82.5 =5.3

    the net would be 5.3%

    There may be a more scientific way, but allowing a difference of 0.1 either way, that get you by x
    xx rip dad... we had our ups and downs but we’re always be family xx
  • ManAtHome
    ManAtHome Posts: 8,512 Forumite
    Part of the Furniture Combo Breaker
    Mum2one - does that include the 10% tax band or is it the difference between monthly and annual interest?

    Applegrass - if you currently pay standard rate tax, and the GROSS interest wouldn't take you into the higher-rate band, it's multiply by 0.8 as YorkshireBoy said. If you're pulling monthly interest out, start with with the monthly rate, not the annual equivalent.
  • I use this system to figure out the rate:

    £xxxxx (money to save) x 6.5% AER =£xxxxx then subtract 20% =£xxxx

    To get monthly rate divide the remaining amount by 12 or
    To get daily rate divide the remaining amount by 365
    Seems pretty close to what my building society gives me.
  • mum2one
    mum2one Posts: 16,279 Forumite
    Xmas Saver!
    ManAtHome wrote: »
    Mum2one - does that include the 10% tax band or is it the difference between monthly and annual interest?

    Applegrass - if you currently pay standard rate tax, and the GROSS interest wouldn't take you into the higher-rate band, it's multiply by 0.8 as YorkshireBoy said. If you're pulling monthly interest out, start with with the monthly rate, not the annual equivalent.

    Hi.
    Thats not taking into account the 10% tax band, as the net is worked out at 17.5% reduction on the gross.

    The formula works for monthly or annual interest, when your loking at interest rates, monthly interest tends to be slightly lower %
    xx rip dad... we had our ups and downs but we’re always be family xx
  • YorkshireBoy
    YorkshireBoy Posts: 31,541 Forumite
    Part of the Furniture 10,000 Posts Name Dropper
    mum2one wrote: »
    Hi.
    Thats not taking into account the 10% tax band, as the net is worked out at 17.5% reduction on the gross.

    The formula works for monthly or annual interest, when your loking at interest rates, monthly interest tends to be slightly lower %
    Savings income (ie interest) is taxed at 20% at source - hence my "multiply by 0.8" reply above.

    Could you explain where the 17.5% comes from, because you've lost me there. :)
  • savings income is taxed 20% at source unless you declare yourself as a non taxpayer.

    savings income is added to earned income to determine at what rate it is taxed. any saving income falling within the starting rate band is taxed at the starting rate (10%).
    "The Holy Writ of Gloucester Rugby Club demands: first, that the forwards shall win the ball; second, that the forwards shall keep the ball; and third, the backs shall buy the beer." - Doug Ibbotson
  • as yorkshireboy says you multiple by 0.8 to convert gross to net for a basis rate tax payer as the tax suffered is 20%
    "The Holy Writ of Gloucester Rugby Club demands: first, that the forwards shall win the ball; second, that the forwards shall keep the ball; and third, the backs shall buy the beer." - Doug Ibbotson
  • Yes, the difference between gross and net on savings interest received is 20%.

    Example: AER = 6.00%, amount invested £100

    You would receive £6.00 gross interest, and if you are a UK taxpayer, 20% of this will be deducted by the bank. 20% of £6.00 is £1.20, so you would have £4.80 net interest.

    So to go from gross to net, you times the gross by 0.8:

    6.00% x 0.8 = 4.80%.

    I too am not sure where the suggestion of 17.5% comes from. The only thing I can think of is confusion with VAT for net and gross values on invoices maybe???
  • mum2one
    mum2one Posts: 16,279 Forumite
    Xmas Saver!
    Savings income (ie interest) is taxed at 20% at source - hence my "multiply by 0.8" reply above.

    Could you explain where the 17.5% comes from, because you've lost me there. :)

    This is going to sound bit of a cop out, doing a financial course and one of the questions was gross to net, after working a few figures, of gross and net, I got the difference to be 17.5, tried it on 4 different figures and it worked out. :confused:
    xx rip dad... we had our ups and downs but we’re always be family xx
This discussion has been closed.
Meet your Ambassadors

🚀 Getting Started

Hi new member!

Our Getting Started Guide will help you get the most out of the Forum

Categories

  • All Categories
  • 352.2K Banking & Borrowing
  • 253.6K Reduce Debt & Boost Income
  • 454.3K Spending & Discounts
  • 245.2K Work, Benefits & Business
  • 600.9K Mortgages, Homes & Bills
  • 177.5K Life & Family
  • 259.1K Travel & Transport
  • 1.5M Hobbies & Leisure
  • 16K Discuss & Feedback
  • 37.7K Read-Only Boards

Is this how you want to be seen?

We see you are using a default avatar. It takes only a few seconds to pick a picture.