Do you know the Tipping Point of your Mortgage?

  • By: Walter Dunphy ACCA
  • Date: November 7, 2022
  • Time to read: 3 min.

When you start repaying your mortgage, initially the majority of your loan repayment will be servicing the interest costs, in most cases.

Lets just take a simple example first to illustrate this point:

  • Mortgage: €300,000
  • Term: 30 years
  • Fixed Interest Rate: 3.5%

As you can see from the above table, based on the mortgage terms, the borrower must make monthly repayments of €1,347.13. When you look a little closer, you will see that a whopping €875 of the first mortgage repayment is just to service the interest costs of the loan (which equals 65% of the loan repayment).

Mortgage interest is calculated on the balance outstanding on the loan, this means that the interest you pay will be mostly front-loaded. The more and more repayments that you make, the lower the interest will become and the greater the amount allocated to reduce the principal loan amount.

The offshoot of this is it will be slow to build up equity on your property initially without overpaying on your mortgage.

Depending on the terms of your mortgage it could be years before you reach your mortgage tipping point.

What is the mortgage tipping point?

The tipping point of a mortgage is the point at which 50% or more of the mortgage repayment is allocated against the principal of the loan.

What factors affect when the tipping point of your mortgage?

There are two main factors that affect when your mortgage tipping point is:

– Mortgage Term: The longer the term of your mortgage the longer it will take you to reach the tipping point.

– Interest Rate: The higher the interest rate on your mortgage the longer it will take you to reach the tipping point. This is particularly relevant at the moment with interest rates all over the world increasing at a rapid rate of speed.

The Fed Funds Short Term rate now ranges from 3.75-4.00%, when only back in March of 2022 it was as low as 0.25-0.50%. This is an unprecedented rise in such a short space of time.

The effect is that mortgage borrowers are now facing far more costly repayments on their mortgages and the tipping points are much further into the future.

Matrix of Mortgage Tipping Points

Are you interested in knowing what the tipping point is on your own mortgage? I have prepared a matrix below that covers all of the major

Interest Rate15 Year Term20 Year Term25 Year Term30 Year Term35 Year Term
2%Month 0Month 0Month 0Month 0Month 5
2.25%Month 0Month 0Month 0Month 0Month 51
2.5%Month 0Month 0Month 0Month 28Month 88
2.75%Month 0Month 0Month 0Month 59Month 119
3%Month 0Month 0Month 23Month 84Month 144
3.25%Month 0Month 0Month 45Month 105Month 165
3.5%Month 0Month 4Month 64Month 124Month 184
3.75%Month 0Month 19Month 79Month 139Month 199
4%Month 0Month 33Month 93Month 153Month 213
4.25%Month 0Month 45Month 105Month 165Month 225
4.5%Month 0Month 56Month 116Month 176Month 236
Mortgage Tipping Point for each term length and interest rate

We can also get a much clearer picture when we plot the above table on a chart.

Why should you care? Analysing items such as the mortgage tipping point should form part of your analysis at the time when you are deciding the terms of your mortgage.

While you may be making a small saving on the monthly repayment by extending the term of the loan, it can hugely increase the length of time for you to build up a decent amount of equity in your home.

Similarly, just a small difference in interest rate can have a huge effect on your overall mortgage cost. Although it may not seem like it, shopping around can save you a fortune.

Mortgage Tipping Point Calculator

If the above stats that I have prepared do not reflect your own personal situation then you can use my mortgage repayment calculator to work out when exactly your own mortgage tipping point is.

Disclaimer: This blog post is for informational and educational purposes only and should not be construed as financial advice.

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