SDLT Increase on Second Properties (2024): How Class C4 HMOs Could Help Offset Costs

Starting 31 October 2024, the Stamp Duty Land Tax (SDLT) surcharge on second properties has increased from 3% to a flat 5% on top of the standard SDLT rates. This affects all new purchases of second properties, making it crucial for investors to account for this updated cost. A practical approach to balance the impact of this surcharge could be by converting properties from C3 use Class to C4 use Class House in Multiple Occupation (HMO), which permits occupancy by up to six households without planning permission or prior approval (in areas without Article 4 restrictions). Here’s a breakdown of the SDLT changes and how HMO conversion could help offset the increased costs.

Best Fit Mortgages LTD

11/6/20243 min read

New SDLT Rates for Second Properties as of 31st October 2024

The new 5% surcharge on second properties (up from the previous 3%) is applied on top of the standard SDLT rates, as shown below:

The higher rates from 31 October 2024 to 31 March 2025

Property value:

  • Up to £250,000 Rate: 5%

  • £250,001 to £925,000 (next £675,000) Rate: 10%

  • £925,001 to £1.5 million (next £575,000) Rate: 15%

  • Above £1.5 million Rate: 17%

Expected Upcoming Change in April 2025: As of 1 April 2025, it is anticipated that the SDLT rate for properties valued between £125,000 and £250,000 will increase from 0% to 2%. For second properties, this means the total SDLT rate in this range could become 7% (a 5% surcharge plus the anticipated 2% standard rate)

These rates apply to all second property purchases completed on or after 31 October 2024, marking a significant shift in SDLT costs from the previous structure.

Leveraging Class 4 HMO Conversion to Offset the 5% SDLT Increase

To manage the increased SDLT costs, converting properties to Class C4 HMO provides a strategic option, particularly in areas without Article 4 restrictions. Here’s how a Class C4 setup can help:

  1. Increased Rental Income with Multi-Tenant Options
    Class C4 HMO allows occupancy by up to six households, substantially boosting rental income potential. This additional revenue can help offset the 5% SDLT surcharge, improving the overall return on investment.

  2. Simplified Conversion Process
    Where Article 4 restrictions do not apply, converting from Class C3 to Class C4 does not require planning permission or prior approval. This allows for quicker conversions, enabling investors to respond promptly to rental demand.

  3. Enhanced Financial Stability
    Generating income from multiple tenants in a Class C4 HMO provides a stable cash flow, helping to balance SDLT-related expenses more effectively. This makes second property investments more resilient under the new SDLT rates.

Frequently Asked Questions on the New SDLT Surcharge and HMO Conversions

Here’s a brief FAQ to clarify common questions about these updates:

  • Q: What is the new SDLT surcharge for second properties as of October 2024?
    A: The surcharge has increased from 3% to a flat 5%, meaning SDLT for second properties begins at 5% on properties valued up to £250,000 and increases according to each band.

  • Q: How does the April 2025 increase impact SDLT on second properties?
    A: From 1 April 2025, the standard SDLT rate on properties within the £125,000 - £250,000 range will increase from 0% to 2%. For second properties, the total SDLT rate in this range will become 7% (5% surcharge + 2% standard rate).

  • Q: How can converting to an HMO help with SDLT costs?
    A: HMO conversions increase rental income potential, helping to balance the 5% SDLT surcharge by generating income from multiple households.

  • Q: Do I need planning permission to convert to a Class C4 HMO?
    A: Without Article 4 restrictions, Class C4 could allow for up to six households without planning permission or prior approval.

Is a Class 4 HMO Conversion Right for Your Investment?

If you’re considering a Class C4 HMO conversion, take into account:

  • Rental Demand in the Area: Is there demand for multi-tenant properties?

  • Local Regulations: Check if Article C4 restrictions affect the property.

  • Revenue vs. SDLT Costs: Assess whether income from six households can effectively offset the increased SDLT surcharge.

Evaluating these factors will help determine if a Class C4 HMO aligns with your investment goals and offers a sound solution to the SDLT surcharge.

Key Takeaways

The SDLT increase from 3% to 5% on second properties highlights the need for more efficient strategies. Class C4 HMO conversion offers a way to leverage higher rental yields to offset these costs. Staying informed helps investors make better choices and optimize returns.



Ready to maximize your returns despite the new SDLT rates?