{"id":562,"date":"2022-07-31T21:37:02","date_gmt":"2022-07-31T21:37:02","guid":{"rendered":"https:\/\/www.yopa.co.uk\/homeowners-hub\/?p=562"},"modified":"2022-08-01T14:12:24","modified_gmt":"2022-08-01T14:12:24","slug":"how-to-calculate-mortgage-interest","status":"publish","type":"post","link":"https:\/\/dy36-2.stage.yopa-dev.co.uk\/homeowners-hub\/how-to-calculate-mortgage-interest\/","title":{"rendered":"How Do Lenders Calculate Mortgage Interest?"},"content":{"rendered":"\n

It is\nunderstandable that homebuyers would want to understand how their mortgage\nprovider calculates interest on their loan. After all, a mortgage is the\nbiggest financial commitment that most of us will ever make. As the Bank of\nEngland interest rate continues to\nrise<\/a> to\nits highest rate in over 13 years, understanding the impact on our mortgage\nrepayments is more important than ever.  <\/p>\n\n\n\n

With this in\nmind, in this article, we are going to take a closer look at how lenders break\ndown and calculate the monthly payments for mortgaged properties.<\/p>\n\n\n\n

Repayment vs interest-only\nmortgages<\/strong><\/h3>\n\n\n\n

There are two\nmain types of mortgage: repayment and interest only. Both types usually assume\nrepayment of the capital over (or after) the length of the mortgage, which will\ngenerally be between twenty-five to thirty years.<\/p>\n\n\n\n

Interest only\nmortgages tend to be most popular for buy to let purchases or investment\nproperties. The main benefit of these types of mortgages is that monthly\nrepayments are usually relatively low since you will only be paying off the\ninterest and not any capital in the property. Repayment is often via an\narrangement with a pension plan or investment savings scheme. With a few\nexceptions, the number of home loans of this type have declined over recent\nyears due to lenders\u2019 concerns about inadequate repayment planning and tax\nchanges which have hit landlord profit margins. <\/p>\n\n\n\n

In contrast,\nmonthly repayment mortgages look to progressively reduce the outstanding loan\nbalance to zero by the end of the mortgage term. To achieve this, each payment\nincludes some capital as well as interest. During the first few years of the\nmortgage term, a substantial portion of the monthly payment amount relates to\ninterest charges. As mortgage payments progress, the proportion of interest\ndecreases. Correspondingly, the ratio of capital repayment increases until in\nthe final year or two, almost all the monthly payments relate to repaying the\nprincipal loan.<\/p>\n\n\n\n

Consequently,\nfor a given mortgage advance, the monthly standing orders or direct debit\npayments to the lender will be higher for a repayment mortgage than for an\ninterest-only mortgage.<\/p>\n\n\n\n

Calculating interest-only\nmortgage payments<\/strong><\/h3>\n\n\n\n

To calculate\nthe monthly payments for an interest-only mortgage, it is necessary to multiply\nthe annual flat interest rate by the amount outstanding on the mortgage loan.\nIf we consider a mortgage debt of \u00a3120,000 and an annual rate of 3.0 per cent,\nwe can determine the monthly payments quite simply, as follows:<\/p>\n\n\n\n

\u00a3120,000 x 3% = \u00a33,600 per year<\/em><\/p>\n\n\n\n

\u00a33,600 per year divided by 12 months = \u00a3300 per month<\/em><\/p>\n\n\n\n

Similarly, for\na property with a mortgage of \u00a3160,000:<\/p>\n\n\n\n

\u00a3160,000 x 3% = \u00a34,800 per year<\/em><\/p>\n\n\n\n

\u00a34,800 per year divided by 12 months = \u00a3400 per month<\/em><\/p>\n\n\n\n

There are, of\ncourse, a couple of caveats to these calculations. Firstly, it will be\nnecessary to add on life and accident insurance (if applicable), as well as any\nother charges made by the lender over the term of the loan.<\/p>\n\n\n\n

Secondly, in\nthe above calculation, we do not use the APR (annualised percentage rate). As\nthe APR is an average rate over the entire term of the loan, it takes initial\npromotions and the later standard variable rate (SVR) into account. Borrowers\nmay wish, therefore, to calculate both the initial repayment amounts during any\npromotional period, along with the higher payments once the SVR comes into\nforce to give a more accurate figure of overall repayments.<\/p>\n\n\n\n

Calculating repayment\nmortgage monthly payments<\/strong><\/h3>\n\n\n\n

If you have a\nrepayment mortgage and would like to work out how much capital you must repay\neach month, the calculation is \u2013 as one might expect \u2013 more intricate. We have\nto add some capital amortisation to each monthly sum, while still paying\ninterest on the amount of the outstanding loan.<\/p>\n\n\n\n

Using a\nrepayment mortgage calculator is probably the quickest way to gain an idea of\nmonthly mortgage payment levels. This example<\/a> of an online\nmortgage calculator will tell you how much the monthly repayments will be for a\ngiven loan amount, term and interest rate.<\/p>\n\n\n\n

Interest rates<\/strong><\/h3>\n\n\n\n

Interest rates\nvary with economic\nconditions and banking policy<\/a>. At any time, the lowest interest rates are generally available to\nborrowers who pay large deposits (typically 40 per cent) or, in the case of\nremortgages, have significant equity in the property. A mortgage loan with a deposit\nof 40 per cent has what is known as a 60 per cent loan to value (LTV) ratio.\nLoans with higher LTV ratios usually pay higher rates of mortgage interest,\nparticularly when the ratio is above 90 per cent.<\/p>\n\n\n\n

Different\nInterest Calculation Methods<\/strong><\/h3>\n\n\n\n

The most simple\nand straightforward mortgages involve annual interest from the date of the\nadvance to 31st December of the same year, then annually from 1st January\nonwards. Some mortgage lenders still divide the year into twelve months as\nillustrated above. Nowadays, however, many lenders\u2019 computer systems enable\ndaily interest calculations. If this is the case, the lender determines the\ntotal charge for the year as above and then applies 1\/365th part each day.<\/p>\n\n\n\n

Such systems\nmight mean those months with 28, 30 or 31 days will attract differing interest\ncharges. In practice, some lenders opt to base monthly payments on an average\nof 30.4 days (approximately) each month, so that they charge the same interest\nsum monthly. Other lenders choose to charge daily interest but add it to the\nmortgage balance only once a month. Leap years which take place every 4 years and\nsee an extra day added in February, give rise to what becomes in effect a tiny\nreduction in the percentage, though insufficient to be noticeable.<\/p>\n\n\n\n

One leading\nMidlands-based building society, for instance, charges interest to accounts on\nthe first day of every month based on the balance on the last day of the\npreceding month. Their system even takes the exact timing and number of\npayments into account.<\/p>\n\n\n\n

Additional Fees<\/strong><\/h3>\n\n\n\n

As well as the\nmortgage interest rate that the lender charges, it is also essential to\nconsider any extra fees. Typically, additional charges include:<\/p>\n\n\n\n