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Offset mortgage calculation

I'm doing a few calculations for an offset mortgage.

Mortgage - £200k
Term - 23 years
Mortgage interest rate - 3.04%


I'm using the offset calculators on the YBS, Barclays and Scottish Widows website.

Without having any savings to offset, all three say my monthly payment will be £1007 a month.

Now with a £150k saving to offset, Scottish Widows and Barclays say my monthly payment will drop to £628.

But YBS say my monthly payment will drop to £742.

I'm struggling to understand why the YBS figure is different. Any ideas?

Comments

  • george4064
    george4064 Posts: 2,950 Forumite
    Part of the Furniture 1,000 Posts Photogenic Name Dropper
    Are you sure the mortgage interest rates with each provider is the same?

    Are you sure the offset interest rates with each provider is the same?

    Any other features that may create a difference between them?
    "If you aren’t willing to own a stock for ten years, don’t even think about owning it for ten minutes” Warren Buffett

    Save £12k in 2025 - #024 £1,450 / £15,000 (9%)
  • 330d
    330d Posts: 637 Forumite
    Part of the Furniture 100 Posts Name Dropper Combo Breaker
    Yes same

    On all 3 calculators you have to input the interest rate which I have done at 3.04%
  • 330d
    330d Posts: 637 Forumite
    Part of the Furniture 100 Posts Name Dropper Combo Breaker
    Anyone able to help me with this? 

    Thank you 
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