How Do I Time Repayments to Minimise Interest on a Revolving Credit Facility?

How Do I Time Repayments to Minimise Interest on a Revolving Credit Facility?

For active UK buy-to-let landlords and property investors, managing cash flow efficiently is the key to maintaining a profitable portfolio. Traditional financing routes, such as bridging finance or remortgaging, can sometimes feel slow or rigid. This is why many investors are turning to a secured Buy-to-Let (BTL) revolving credit facility. This unique product acts like a secured property overdraft, allowing you to draw funds, repay them, and draw them again without the need to reapply each time. Because this facility sits as a second charge behind your existing first-charge mortgage, it offers a flexible way to fund property ventures.

One of the most common questions landlords ask when adopting this tool is: how do i time repayments to minimise interest on a revolving credit facility? Because interest is only charged on the money you actually draw down—rather than the total facility limit—timing your repayments strategically can save you thousands of pounds. In this guide, we will explore practical strategies for timing your repayments, compare this option to other property finance alternatives, and outline how you can use this facility to your maximum advantage.

How Interest Accrues on a BTL Revolving Credit Facility

To understand how to minimise your interest costs, you must first understand how interest is calculated on a secured revolving credit facility. Unlike a standard term loan where you pay interest on the entire lump sum from day one, a revolving facility only charges interest on the active balance you have drawn.

For example, if you have an approved credit limit of £100,000 but only draw down £20,000 to cover an urgent EPC upgrade, you will only pay interest on that £20,000. The remaining £80,000 sits quietly in the background, accruing zero interest until you decide to use it. Interest is typically calculated on a daily basis. This daily calculation is the secret weapon for landlords looking to reduce costs. Every day that your drawn balance is lower, the interest you accrue decreases.

Timing Repayments in Real Landlord Scenarios

By matching your repayment schedule to your property development milestones and income cycles, you can significantly reduce the overall cost of borrowing. Let us look at how you might apply this to common landlord scenarios.

1. Managing Refurbishment Projects and EPC Upgrades

Imagine you are undertaking a light refurbishment on a newly acquired residential property to meet higher energy efficiency standards. Instead of drawing down the entire budget at the start of the project, you could draw down funds in smaller, staggered amounts. For example, you might draw £10,000 to purchase materials for the first phase. As soon as you receive rental income from other properties in your portfolio, you could make a partial repayment to bring the outstanding balance back down. By timing your repayments to coincide with your monthly rent collection dates, you minimise the number of days the larger balance is active, keeping daily interest to a minimum.

2. Funding Auction Deposits and Purchases

Buying properties at auction requires speed, with buyers typically needing to complete purchases within 28 days. A revolving credit facility is ideal here because, once set up, funds can typically be drawn in 24-48 hours. You could draw the necessary funds to secure the auction property and complete the purchase. To minimise interest, your goal should be to repay the drawn balance as quickly as possible. Landlords often do this by arranging a long-term first-charge BTL mortgage on the new property. The moment the new mortgage completes, the capital can be used to immediately repay the revolving credit facility, stopping the interest accumulation instantly.

3. Covering Void Periods and Maintenance Gaps

During an unexpected tenant void period, your cash flow might be stretched as you continue to pay the primary mortgage and utility bills. You may choose to draw down a small amount from your facility to cover these monthly outgoings. To keep interest costs low, you should time your repayment to coincide with the arrival of a new tenant. Once the new tenant pays their deposit and first month’s rent, those funds can be immediately funneled back into the facility to clear the debt.

Revolving Credit vs. Bridging Finance and Remortgaging

To appreciate how a revolving credit facility helps you control interest costs, it is useful to compare it against the traditional alternatives: bridging loans and remortgaging.

Bridging finance is a popular short-term funding option, but it is structured very differently. Bridging loans can be open (with no set repayment date) or closed (with a fixed exit date, usually within 12 months). A key feature of most bridging loans is that they roll up interest. This means you do not make monthly payments; instead, the interest accumulates and is paid in one lump sum at the end. While this assists with monthly cash flow, you pay interest on the full loan amount for the entire duration, regardless of whether you needed all the money on day one.

Remortgaging to release equity is another common path. However, remortgaging means your first-charge mortgage balance permanently increases. You will pay interest on that extra equity for years, even if the cash sits unused in your bank account. In contrast, a revolving credit facility allows you to draw down, repay, and draw again. It gives you the flexibility of bridging finance but with the ability to control interest costs through active, self-timed repayments.

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Key Risks of Secured Property Financing

While timing your repayments can dramatically lower your borrowing costs, you must always manage your debt responsibly. Because a revolving credit facility sits as a second charge behind your primary mortgage, it is a secured debt. Your property may be at risk if repayments are not made. Legal action, repossession, increased interest rates, and additional charges could also result if you fail to meet the terms of your agreement.

It is vital to have a clear exit strategy or repayment plan in place before drawing down funds. Landlords should always ensure that their rental yields or alternative capital sources are robust enough to cover the drawn balances, even if market conditions change or void periods last longer than expected. For additional guidance on how to evaluate your financial commitments, you can read the MoneyHelper guide on buy-to-let properties.

People also asked

Can I use a revolving credit facility for multiple buy-to-let properties?

Yes, once the secured facility is established against your chosen residential BTL property as a second charge, the drawn funds can typically be used to support any part of your property portfolio, such as financing repairs, auction deposits, or EPC upgrades across multiple buildings.

How does a revolving credit facility differ from a bridging loan?

A bridging loan is typically a single lump-sum loan with rolled-up interest that you pay back all at once. A revolving credit facility acts like a property overdraft, allowing you to draw down, repay, and draw again as many times as you like during the facility term, only paying interest on your active balance.

How quickly can I access funds once the facility is set up?

Once the initial second-charge facility has been legally arranged and approved, subsequent drawdowns are highly efficient and can typically be transferred to your bank account within 24 to 48 hours of your request.

Are there non-utilisation fees on a revolving credit facility?

Some lenders may charge a small non-utilisation fee on the undrawn portion of your facility to keep the credit line open, though this is generally much lower than the active interest rate charged on drawn funds.

Is Promise Money a lender or a broker?

Promise Money is an FCA-authorised broker (Ref: 681423), not a direct lender, meaning they work with a wide panel of specialist lenders to help you find the most suitable secured revolving credit facility for your portfolio.

Finding the Right Solution for Your Portfolio

Timing your repayments to minimise interest on a revolving credit facility is a powerful strategy for UK landlords. By coordinating your repayments with tenant rental cycles, refinancing events, or project completions, you can significantly reduce your interest expenses compared to standard bridging loans or full remortgages. This financial agility can help you act quickly on new property opportunities, such as auction purchases or urgent refurbishments, without carrying unnecessary debt costs.

As an experienced, FCA-authorised broker, Promise Money can help you navigate the marketplace to find a secured facility tailored to your investment goals. To discuss how a BTL revolving credit facility could support your business, contact the team today at 01902 585020 or visit the online hub at promisemoney.co.uk/landlord-revolving-credit-100.