Year-End Void Planning Before the April 2026 Revaluation

As December 2025 draws to a close, commercial property owners face a critical window for preparing void units ahead of the April 2026 revaluation cycle. This guide covers portfolio audits, relief entitlements, the 13-week occupation rule and practical steps to understand your rates position before the new financial year begins. No strategy guarantees a particular outcome; substance and evidence are what billing authorities now test.

The 2026 Revaluation: What's Changing and Why It Matters

The April 2026 business rates revaluation represents the first valuation under the new three-year revaluation cycle, a significant departure from the previous five-year intervals. This accelerated schedule aims to ensure rateable values more accurately reflect current market conditions, but it also creates heightened urgency for property owners to understand their rates position before the reset.

According to the Valuation Office Agency (VOA), the 2026 revaluation uses rental values as at the antecedent valuation date of 1 April 2024. Those 2024 rental conditions determine the rateable values that drive bills from April 2026 through to March 2029. For landlords with vacant properties, the implications are substantial:

• Rateable values may increase in areas where commercial property values have risen, potentially increasing the burden of empty property rates
• The empty property relief (EPR) period resets are now governed by the 13-week occupation rule introduced in April 2024
• Multiplier changes announced in recent budgets will affect the final rates calculation, with different multipliers for small businesses versus larger properties
• Relief schemes are evolving, including tapering of Retail, Hospitality and Leisure (RHL) relief to 40% for 2025/26

Year-End Review: Conducting a Portfolio Audit

December presents an ideal opportunity for commercial landlords to conduct a comprehensive audit of their property portfolio's business rates position. This strategic review should encompass:

1. Vacancy Status Assessment

Document the current vacancy status of all properties, noting:

• Date each property became vacant
• Remaining days of empty property relief (first 3 months for most commercial properties, 6 months for industrial/warehouse)
• Properties currently paying full empty rates
• Anticipated letting dates or void periods extending into 2026

Critical Insight: The British Property Federation reported in their January 2026 update that business rates and investment remain “firmly under the spotlight,” with councils adopting stricter scrutiny of relief claims following revaluation. Property owners must ensure meticulous documentation of vacancy periods and occupation arrangements.

2. Relief Entitlements Review

Verify current and potential relief entitlements across your portfolio:

• Small Business Rate Relief (SBRR): 100% relief for properties with an RV under £12,000 in England, tapering to zero between £12,000 and £15,000
• Empty Property Relief: Initial 3-month exemption for most properties (verify remaining days)
• RHL Relief: 40% relief for 2025/26 for eligible retail, hospitality, and leisure properties (capped at £110,000)
• Charitable Relief: For properties occupied by registered charities
• Rural Rate Relief: For eligible rural properties

3. Rateable Value Verification

With the 2026 revaluation approaching, now is the time to:

• Review current rateable values through the VOA website
• Compare against similar properties in your area
• Identify potential grounds for challenging the April 2026 valuation
• Gather evidence of factors that might reduce value (disrepair, adverse location factors, market decline)
• Consider engaging a rating surveyor for professional assessment before the April 2026 deadline

Strategic Occupation Planning: The 13-Week Rule

One of the most significant changes affecting vacant property strategy is the 13-week occupation requirement for resetting empty property relief, implemented from 1 April 2024. This rule replaced the previous 6-week threshold and fundamentally changed how landlords approach void management.

Understanding the 13-Week Reset Mechanism

To qualify for a fresh period of empty property relief after the initial exemption period expires, a property must be occupied for at least 13 consecutive weeks (92 days). This occupation must be genuine and beneficial, meeting the four legal tests of rateable occupation:

1. Actual occupation - physical presence and use of the property
2. Exclusive occupation - the occupier has exclusive possession
3. Beneficial occupation - the occupation provides benefit to the occupier
4. Not too transient - the occupation has sufficient permanence

According to legal commentary from Kingsley Napley LLP, the government’s intention with the 13-week rule was to prevent “box shifting” tactics where properties were briefly occupied purely to avoid rates. The extended period ensures more substantive use of vacant premises. Since the Court of Appeal’s 2026 judgment in City of London v 48th Street Holdings, that caution applies with even greater force: arrangements whose sole purpose is to manufacture a rates outcome are vulnerable regardless of how they are packaged.

For a fuller guide to the four limbs, see Beneficial Occupation Explained.

Year-End Occupation Opportunities

December 2025 presents a strategic opportunity for implementing compliant occupation arrangements:

Timeline Analysis: A property occupied from early December 2025 would complete the 13-week requirement by late February/early March 2026, potentially qualifying for a fresh 3-month empty property relief period starting when the occupation ends, subject to the billing authority accepting the arrangement. This positions the property for the post-revaluation period, but outcomes are never guaranteed.

Practical Implementation Options:

• Pop-up retail arrangements: Seasonal operators for Christmas trading (must extend beyond 13 weeks)
• Short-term licences: To businesses needing temporary space (minimum 13 weeks)
• Technology-based live services: Guest WiFi, window advertising and remote monitoring through providers such as VacatAd
• Community or charitable use: Temporary occupation by qualifying organisations

Live Void Services: Connect, Advertise, Protect

VacatAd is not a “mitigation scheme.” It is a void-management service built around three live uses of the building:

How It Works

1. Connect: Plug-and-play guest WiFi requiring only a power source, with connectivity logs.
2. Advertise: A printed window display and captive portal promoting local businesses.
3. Protect: Optional remote monitoring for security, damp and environmental conditions.
4. Formal occupation: A tenancy agreement reflecting exclusive, beneficial use where appropriate.

Documentation and Evidence

VacatAd’s system is designed to produce evidence of live activity:

• WiFi usage logs demonstrating public benefit
• Continuous monitoring data
• Formal lease documentation
• Council liaison and notification management

This evidence base matters as councils intensify scrutiny following the revaluation. As noted in the Spring Budget 2024 analysis by Kingsley Napley, arrangements purely designed to avoid rates without genuine occupation are increasingly challenged. VacatAd does not promise a particular rates outcome; any relief depends on the facts, the evidence and the billing authority’s view.

Illustrative Cost Scenarios

Understanding the financial impact of different approaches is useful for year-end planning. The figures below are illustrative only; your position will depend on rateable value, multiplier, relief eligibility and the billing authority’s assessment.

Scenario 1: No Action (Continued Empty Rates)

For a typical office property with rateable value of £50,000:

• Standard multiplier 2025/26: 55.5p (England, confirmed)
• Annual rates bill: £27,750
• Monthly empty rates cost (after EPR expires): £2,313
• Six-month void cost: £13,875

Scenario 2: Compliant Occupation Followed by EPR

Same property with a compliant 13-week occupation that the billing authority accepts:

• Occupation period (13 weeks): Occupier liable for rates
• Fresh EPR period (3 months): £0 rates liability if relief is granted
• Potential saving over 6-month period: around £6,938 (3 months relief at the 2025/26 standard multiplier of 55.5p), subject to acceptance
• Additional benefits: Property security, monitoring, community WiFi

Scenario 3: Multiple Reset Cycles

For properties with extended void periods, multiple compliant occupation cycles may be possible in theory:

• December-February: First 13-week occupation
• March-May: First EPR period (3 months)
• June-August: Second 13-week occupation
• September-November: Second EPR period (3 months)
• Potential saving across both cycles: around 50% of a full year’s empty rates bill, if each cycle completes successfully and is accepted by the billing authority

Use our plain-English page on empty property rates to model your own exposure on the 2026 list.

Preparing for April 2026: Action Plan

To prepare your portfolio for the new revaluation period, consider this timeline:

December 2025 (Immediate Actions)

• Complete portfolio audit of all vacant properties
• Calculate remaining EPR days for each property
• Identify properties that may need occupation arrangements before April 2026
• Review current rateable values and prepare challenge evidence
• Speak to advisers or service providers about compliant void options
• Implement live services or occupation arrangements for properties with expired EPR

January-March 2026 (Pre-Revaluation Period)

• Monitor Draft 2026 Rateable Value List (typically published by VOA)
• Complete ongoing 13-week occupation arrangements
• Prepare appeals for properties with excessive valuations
• Ensure all relief claims are properly documented and submitted
• Review and update property marketing strategies

April 2026 Onwards (Post-Revaluation)

• Review new rateable values immediately upon publication
• Submit challenges through VOA's Check-Challenge-Appeal process if appropriate
• Maintain live services or occupation cycles for properties with ongoing voids
• Monitor council billing to ensure correct relief application
• Plan mid-year review for Q3 2026

Regulatory Compliance: Avoiding Common Pitfalls

The heightened scrutiny following revaluation means compliance is more critical than ever. Common pitfalls to avoid include:

1. Token or Sham Occupation

Following high-profile cases including the “snail farm” scandal reported in Westminster (where councils lost £370,000 to fraudulent agricultural exemption claims) and the Court of Appeal’s 48th Street judgment, authorities are vigilant against artificial occupation arrangements. Ensure any occupation arrangement:

• Has genuine commercial or public benefit
• Involves real physical occupation
• Is properly documented with formal agreements
• Can withstand council investigation

2. Inadequate Documentation

Maintain comprehensive records including:

• Dated tenancy or licence agreements
• Evidence of beneficial use (usage logs, utility bills, access records)
• Communication with councils regarding occupation status
• Photographs or surveys documenting property condition

3. Missed Deadlines

Critical dates to monitor:

• 31 March 2026: Final deadline to file new Checks against the closing 2023 rating list
• 1 April 2026: 2026 rating list takes effect; new rateable values and the five-tier multiplier system apply
• Ongoing: Notification requirements when properties become occupied or vacant; 2026 list Checks can be filed throughout the life of the list (to 31 March 2029)

The Broader Context: Business Rates Reform Agenda

The April 2026 revaluation occurs within a broader context of business rates reform. The Labour government has committed to:

• Permanent lower multipliers for retail, hospitality, and leisure properties
• Higher multipliers for large distribution warehouses (£500,000+ RV)
• More frequent revaluations to keep values current
• Digitalisation of the system for better data sharing
• Potential General Anti-Avoidance Rule (GAAR) for business rates

According to a Tax Adviser Magazine article from October 2024, these reforms aim to “replace the current business rates system with something fairer,” while maintaining revenue neutrality. For vacant property owners, this means continued pressure to manage voids within clearly defined legal boundaries, with substance rather than paperwork as the test.

Conclusion: Prepare Now, With Realistic Expectations

The convergence of the April 2026 revaluation, the 13-week occupation rule, and evolving relief schemes creates both challenges and planning opportunities for commercial property owners. Success in this environment requires:

1. Proactive planning - Do not wait until April; audit your portfolio now
2. Compliant strategies - Ensure all relief claims are legally sound and well-documented
3. Professional advice - Engage specialists in business rates and beneficial occupation
4. Live void services - Keep units working with WiFi, advertising and monitoring, not paper occupation alone
5. Continuous monitoring - Stay informed of regulatory changes and revaluation impacts

December 2025 is a practical window for implementing void arrangements that carry properties through the revaluation period. VacatAd’s Connect, Advertise, Protect model keeps units active and documented; any rates position remains a separate question for you and your advisers.

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References and Further Reading

1. GOV.UK - Introduction to Business Rates
2. GOV.UK - Business Rates Relief
3. Kingsley Napley LLP - Spring Budget Analysis: Changes to Empty Property Relief
4. Tax Adviser Magazine - Business Rates Reform: Autumn Budget 2024
5. British Property Federation - Industry Updates and Policy Insights
6. Valuation Office Agency - 2026 Revaluation Information