The following calculator uses JavaScript to instantly update loan payments based on changing any inputs. You can use it many different ways to figure your mortgage.
Full Monthly Payment
Interest Only
Months
Total Interest Payable
There are 12 months in a year, but our calculator is designed to input years and output months. If you would like to enter a set number of months in your goal time use the following conversion chart to convert any additional months into the decmal fraction of a year.
If you have other higher-interest debts it can make sense to pay those off first. If you have other investments which you are fairly certain will have superior returns, or get tax advantages for contributing to a retirement program it can make sense to fund those other options too.
In general paying extra on your home is not simply just a financial decision. There is an emotional dividend beyond the interest savings in knowing your home is paid off, your family is secure, and you have one less thing to worry about.
Since the early 1980s interest rates have declined secularly in the developed world with central banks getting more aggressive with their market interventions. Globalization, technology and the internet were massive deflationary forces along with families having fewer children. Many of these deflationary benefits have already been felt across the economy and were associated with increasing financial asset prices as interest rates fell.
In response to the global COVID-19 crisis central banks intervened on a scale not seen since at least World War 2. For Valentine's Day the European Central Bank even published a love poem to loose monetary policy.
Roses are red
— European Central Bank (@ecb) February 14, 2021
Violets are blue
We’ll keep financing conditions favourable
‘Til the crisis is through#ECBmyvalentine #ValentinesDay
Money is a social construct. Loss of faith is a nonlinear process.
There's a reason people are bidding up Bitcoin, ridiculous cryptocurrencies, left-for-dead retailers like GameStop, and throwing money at hundreds of SPACs.
Eventually inflation will spill from the capital markets into the broader economy. When it does, the central banks which stoked it via ultra-loose monetary policy may not be able to stop it very easily. Such inflation could cause financial asset prices to drop (due to a higher risk-free benchmark & larger discount rate) while interest rates rise (making the carrying cost of serving debts higher).
Those who had paid extra on their homes will be able to better handle rate rises than those who made the minimum payments and are holding higher levels of debt.
Mortgages charge interest on how much ever debt there is outstanding. Each month you pay off some of the principal and you pay off the interest that accrued that month.
If you make a large lump-sum payment then you are instantly reducing the remaining loan balance from that day forward. For exmample, if you had access to £10,000 and could apply the sum immidiately to a 3% loan then you can calculate how much you will save in interest monthly with the following equation:
monthly interest savings = lump sum * rate / frequency
£10,000 * 0.03 / 12
£10,000 * 0.0025 = £25 saved per month = £300 saved per year
The above example shows the monthly and annual savings you will enjoy with a lump sum payment. Those savings will be this month, next month, this year, next year, etc.
If you instead added an extra £833.33 monthly for a year you would make the same £10,000 overpayment, but it would be stretched out across time & so your savings would be less. Initially you would only save 1/12 of the £25 monthly savings.
If you stretched out the overpayment across multiple years then the monthly interest savings would be lower.
The sooner you can apply extra funds to your loan the more interest expense you save.
If you do not have a large lump sum set aside then paying extra monthly or shifting to accelerated biweekly payments can be advantageous as well. Either way you save on interest, but the sooner you pay exta the more you save.
If you believe interest rates will fall then you could remortgage at lower rates at the end of your fixed introductory rate term.
If you believe interest rates will rise then it makes a lot of sense to make extra payments on your mortgage to reduce the balance as much as possible before rates rise.
We also offer a calculator with amortisation schedules for changing loan rates, so you can see your initial loan repayments and figure out how they might change if interest rates rise.
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