Capital and interest repayment mortgage

What is a capital and interest repayment mortgage?

A capital and interest repayment mortgage (often called a repayment mortgage) is a home loan where your monthly payment is used to cover interest and to repay part of the capital (the amount you borrowed).

In a typical repayment mortgage, the intention is that the loan is repaid in full by the end of the agreed term, provided you keep up with the repayments and there are no changes that affect the mortgage (for example, an early repayment).

How your monthly payment is split

With a repayment mortgage, each payment typically includes two elements:

• Interest: the cost of borrowing, calculated on the outstanding balance
• Capital: the portion of your payment that reduces what you owe

Because interest is charged on the remaining balance, the interest portion usually reduces over time, while the capital portion usually increases.

What this looks like in practice

• Earlier in the mortgage: more of your payment goes towards interest
• Later in the mortgage: more of your payment goes towards capital

The exact pattern depends on the mortgage’s interest rate type and how interest is calculated under the product terms.

Why repayment mortgages are popular with home buyers

Many home buyers prefer repayment mortgages because they offer a clear repayment path:

• Your balance generally reduces over time
• There is an end date when the mortgage is intended to be fully repaid
• You build equity as you repay capital

For borrowers who want their mortgage to end with the loan cleared, this structure can be easier to plan around than options that rely on a separate repayment strategy at the end of the term.

Interest calculation and repayment timing

Interest is generally calculated based on the outstanding mortgage balance. In many mortgage contracts, interest accrues on a daily basis, which can affect how the balance changes when payments are made.

When comparing mortgage options or planning extra payments, it can help to understand:

• how interest is calculated under the mortgage terms
• when changes to the balance take effect
• how the lender applies lump-sum payments (if allowed)

Overpayments: paying more to reduce the balance faster

Many repayment mortgages allow overpayments—extra payments above your normal monthly amount—though the rules vary by lender and product.

If overpayments are permitted, they may:

• reduce the outstanding balance sooner
• potentially reduce the total interest paid over the life of the mortgage
• help you reach your repayment goal earlier (subject to the mortgage’s overpayment rules)

Common ways overpayments can work

Overpayments may be available as:

• regular overpayments (for example, increasing monthly payments)
• one-off lump sums

Whether you can overpay, and how the lender applies those payments, depends on the mortgage agreement.

Early Repayment Charges (ERCs) to consider

If you plan to overpay heavily or repay the mortgage early, it’s important to check whether Early Repayment Charges (ERCs) apply.

ERCs may be triggered if you:

• repay more than the permitted overpayment limit
• make lump-sum repayments during a restricted period
• repay the mortgage in full within an ERC window

Because ERCs can affect the overall benefit of paying extra, review the mortgage’s overpayment and early repayment terms before making changes.

Capital and interest repayment mortgage vs other mortgage structures

A repayment mortgage is designed so that the loan balance reduces through the term.

By contrast, some other mortgage types may not reduce the capital in the same way during the term. For example:

• Interest-only mortgages: monthly payments may cover interest only, with the capital repaid via a separate strategy
• Part-and-part mortgages: a split between a repayment portion and an interest-only portion

A useful way to compare structures is to ask:

• Do you want the balance to reduce steadily through monthly payments? (repayment mortgage)
• Or do you plan to repay the capital separately later? (other structures)

Key takeaways

• A capital and interest repayment mortgage uses each monthly payment to cover interest and capital.
• As the balance reduces, the interest portion typically falls and the capital portion typically rises.
• Repayment mortgages are structured to be repaid by the end of the term, assuming repayments are maintained.
• Overpayments may help reduce the balance faster, but it’s important to check overpayment limits and whether ERCs apply.

Important: Your home may be repossessed if you do not keep up repayments on your mortgage.