Mortgage Holiday Cost Calculator
Interest cost of pausing mortgage payments.
Calculate the long-term interest cost of taking a mortgage payment holiday. Enter mortgage balance and rate to see interest added by pausing payments.
What this tool does
Enter mortgage balance, rate, and holiday duration. The tool shows the interest added by pausing payments.
Enter Values
Formula Used
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Disclaimer
Results are estimates for educational purposes only. They do not constitute financial advice. Consult a qualified professional before making financial decisions.
A mortgage holiday pauses payments but not interest. 200,000 balance at 5% paused for 6 months adds roughly 5,050 in interest to the loan. The 5,050 then compounds across the remaining term. Over a 20-year remaining term at 5%, the 5,050 becomes about 13,400 of extra total cost. Helpful in emergencies; expensive if taken unnecessarily.
Quick example
With current mortgage balance of 200,000 and annual rate of 5% (plus holiday duration of 6 and remaining term of 20), the result is 5,052.37. Change any figure and watch the output shift — it's often more useful to see the pattern than to memorise the formula.
Which inputs matter most
You enter Current Mortgage Balance, Annual Rate, Holiday Duration, and Remaining Term. Frequency and unit price pull the total in different directions. The biggest surprise for most people is how small recurring amounts compound into large annual figures — that's where this calculation earns its keep.
What's happening under the hood
Compound interest on frozen balance for the holiday period. Lifetime cost adds interest-on-interest over the remaining term. The formula is listed in full below. If the number looks off, you can retrace the calculation by hand — that's the point of showing the working.
Stress-testing the plan
Run the calculation at your current rate, then run it again at a rate 2–3 percentage points higher. That's roughly what a product reset could bring at renewal, and it's a useful check on whether you can afford the mortgage in a higher-rate world, not just today's.
What this doesn't capture
The figure excludes arrangement fees, valuation costs, legal fees, insurance, and any early-repayment charges — those can add several thousand to the headline cost. Rate changes at renewal for fixed-term deals will shift the picture further. Use this for the core interest/principal math and add the other costs on top.
Mortgage holiday cost produces an interest figure based on the inputs provided.
Inputs
This example uses typical values for illustration. Adjust the inputs above to match a specific situation and see how the result changes.
Sources & Methodology
Methodology
Compound interest on frozen balance for the holiday period. Lifetime cost adds interest-on-interest over the remaining term.
References
Frequently Asked Questions
Is a payment holiday always this expensive?
When does it make sense?
Alternatives to a holiday?
Impact on credit?
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