How does the speed of a revolving credit facility compare to a further advance from my existing lender?
22nd May 2026
By Simon Carr
How does the speed of a revolving credit facility compare to a further advance from my existing lender?
In the fast-moving UK property market, professional landlords and property investors often need quick access to capital. Whether you are aiming to secure an auction property, fund an urgent refurbishment, or meet the latest minimum energy efficiency standards, timing is everything. Historically, landlords have relied on a further advance from their existing first-charge mortgage lender to release equity. However, modern investors are increasingly looking at innovative secured products like the Buy-to-Let (BTL) revolving credit facility offered by Promise Money.
To make the best financial decisions for your portfolio, it is important to understand how the speed of a secured revolving credit facility compares to a traditional further advance, and why the difference in timing could make or break your next property deal.
What is a Further Advance and Why Does It Take Time?
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A further advance is when you borrow additional funds from your existing first-charge mortgage lender. The extra money is typically secured against your property under the same first-charge agreement, usually at a different interest rate than your primary mortgage. While this can sometimes be a cost-effective way to raise long-term capital, the application process is rarely quick.
When you apply for a further advance, your lender must treat it as a new lending application. This means they will conduct a full assessment of your circumstances, which typically includes:
- Re-evaluating your personal and business financial circumstances.
- Conducting a full credit search to assess your creditworthiness.
- Ordering a new physical or desktop valuation of the property to confirm there is sufficient equity.
- Re-assessing your rental coverage ratio to ensure the property’s rental income can support the increased debt.
- Running the application through internal underwriting committees, which may request additional paperwork.
Because of these administrative stages, obtaining a further advance from your existing lender typically takes anywhere from four to eight weeks. If you are trying to purchase a property at auction with a strict 28-day completion window, this traditional route is often too slow to be viable.
How a Secured BTL Revolving Credit Facility Works
A buy-to-let revolving credit facility acts as a property overdraft. This is a secured facility, meaning it sits behind your existing first-charge mortgage as a second charge against your residential buy-to-let property. It is not an unsecured business loan, a standard credit card, or a generic business line of credit. It is a specialist tool designed specifically for UK property investors.
The defining feature of this product is its flexibility. Once the facility is arranged and set up, you can draw down funds, use them for your property projects, repay the balance, and then draw down again whenever you need to, without ever having to reapply. Furthermore, interest is only charged on the amounts you have actually drawn down, rather than the full limit of the facility.
Before applying for any secured borrowing, it is wise to review your credit file to ensure there are no surprises that could delay your application. Get your free credit search here. It’s free for 30 days and costs £14.99 per month thereafter if you don’t cancel it. You can cancel at anytime. (Ad)
Speed Comparison: Initial Setup vs. Ongoing Drawdowns
To truly understand how the speed of a revolving credit facility compares to a further advance, we must look at two distinct phases: the initial setup phase and the subsequent drawdown phase.
1. The Initial Setup Phase
Setting up a secured revolving credit facility for the first time does require underwriting, valuations, and legal checks, much like a second-charge mortgage. This initial process can take several weeks to complete. In this initial phase, the speed is relatively similar to arranging a further advance or a second-charge loan. However, once this initial groundwork is done, the facility remains open and ready for use.
2. The Ongoing Drawdown Phase
This is where the revolving credit facility completely outpaces a further advance. Once your revolving credit facility is active, you can typically draw down funds within 24 to 48 hours. There are no new valuation fees, no fresh underwriting processes, and no lengthy legal delays. You simply request the funds you need up to your agreed limit, and the money is transferred. In contrast, if you want to borrow more money via a further advance in the future, you must go through the entire multi-week application and underwriting process all over again.
Real-World Landlord Scenarios: Speed in Action
To illustrate how this speed difference plays out in practice, let us look at some common scenarios experienced by UK landlords:
Scenario A: The Auction Purchase
An investor spots a property at auction that needs rapid modernisation. To secure the property, they must complete the purchase within 28 days. A further advance would likely take too long, risking the loss of their deposit. A bridging loan could work but involves high setup fees. If the landlord already has a secured revolving credit facility in place, they can draw the auction deposit or purchase funds within 48 hours, securing the deal smoothly.
Scenario B: Meeting EPC Standards
With changing regulations, landlords often need to perform rapid energy efficiency upgrades to meet government guidance on EPC standards. Waiting weeks for a further advance means prolonged void periods where the property cannot be let. Drawing refurb costs instantly from a revolving credit facility allows work to begin immediately, minimizing tenant disruption and protecting cash flow.
Scenario C: Bridging Gaps During Remortgaging
A landlord is in the process of remortgaging a property, but the transaction is delayed. Meanwhile, they need to pay a deposit on another portfolio addition. A revolving credit facility can bridge this temporary gap effortlessly, then be repaid once the remortgage completes.
Comparing the Alternatives: Bridging Finance vs. Revolving Credit
When speed is of the essence, landlords also frequently consider bridging finance. It is helpful to understand how these options compare. Bridging loans are typically categorised as either “open” or “closed.” An open bridging loan has no fixed repayment date but usually must be repaid within a set term (typically 12 to 24 months). A closed bridging loan has a clear, predefined exit strategy and date, such as a pending sale of a property.
Most bridging loans roll up interest, meaning monthly payments are not typical, and the debt is settled in one lump sum at the end. While bridging finance can be fast to arrange, it is designed for single, one-off transactions. Every time you need new bridging finance, you must start a brand-new application, pay new arrangement fees, and wait for new valuations. A secured revolving credit facility provides a reusable option, saving you time and administrative hassle across multiple projects.
Whether choosing bridging finance, a further advance, or a second-charge revolving credit facility, remember that your property may be at risk if repayments are not made. Failing to keep up with repayments could lead to serious consequences, including legal action, repossession of your investment property, increased interest rates, and additional charges from the lender.
People also asked
What is a secured revolving credit facility?
It is a property-backed line of credit secured as a second charge against a residential buy-to-let property, allowing landlords to draw down, repay, and redraw funds as needed without reapplying.
Is a revolving credit facility faster than a further advance?
While the initial setup times can be similar, drawing funds from an established revolving credit facility typically takes just 24 to 48 hours, whereas a further advance requires a new multi-week application process every time.
Does a revolving credit facility charge interest on the whole limit?
No, you are typically only charged interest on the funds you have actively drawn down, making it a highly cost-effective option for managing ongoing property refurbishments or cash flow gaps.
Can I use this facility if I already have a mortgage?
Yes, this facility is designed to sit behind your existing first-charge mortgage as a second charge, meaning you do not have to disturb your current low-rate mortgage deal.
Is this an unsecured business credit card or business loan?
No, this is a secured financial product backed by residential buy-to-let property, designed specifically for property investors and managed as a second charge.
How Promise Money Can Help
Navigating the various ways to raise capital for your property portfolio can be complex. Choosing between a further advance, bridging finance, or a second-charge revolving credit facility depends on your unique financial circumstances, your timeline, and your long-term investment strategy.
Promise Money is an FCA-authorised broker (Ref: 681423), not a lender. Our team of experts can help you compare the market to find the right secured financial products for your property goals. For more detailed information on this product, you can visit our hub at promisemoney.co.uk/landlord-revolving-credit-100.
To speak with one of our experienced advisors about your options, contact Promise Money today on 01902 585020.


