ECO4 Scheme 2026: Deadlines, Changes & How to Apply Before Funding Ends
The ECO4 scheme is entering its final months. This article covers what Scottish households need to know about the March 2026 deadline, recent eligibility updates, and how to apply while funding remains available.
Quick Answer: Is ECO4 still available in 2026?
Yes, ECO4 funding remains available until March 2026. Scottish households meeting eligibility criteria can still apply for fully funded insulation, boiler replacements, and heating improvements. Apply early to ensure processing before the deadline.
Time-Sensitive Information
ECO4 closes in March 2026. Processing applications takes 4-12 weeks. If you are considering applying, starting the process now gives the best chance of completion before the deadline.
What Is Happening with ECO4 in 2026?
The Energy Company Obligation Phase 4 (ECO4) was launched in April 2022 with a scheduled end date of March 2026. As we enter the final months of the scheme, several important developments affect Scottish households:
- Funding remains available but allocation is finite
- More local councils now participate in LA Flex pathways
- Processing times may extend as demand increases near the deadline
- No official announcement yet on a successor scheme
When Is the ECO4 Deadline?
The ECO4 scheme is set to close at the end of March 2026. This deadline applies to funding allocations, meaning:
- Application deadline: Applications should be submitted well before March 2026
- Assessment timing: Property surveys and eligibility checks take 2-4 weeks
- Installation scheduling: Work completion depends on installer availability
- Total timeline: Allow 8-16 weeks from initial enquiry to completed installation
Households applying in early 2026 have the best chance of completing the process before scheme closure. Those waiting until late February or March risk their application not being processed in time.
What Changes Have Been Made to ECO4 Eligibility?
The core ECO4 eligibility criteria have remained stable throughout the scheme, but several practical changes have improved access:
Expanded LA Flex Participation
More Scottish councils now issue LA Flex declarations, allowing households with income under approximately £31,000 to qualify even without receiving qualifying benefits. Check with your local council about their participation.
Broader Measure Coverage
The range of measures available has expanded to include more renewable technologies. Air source heat pumps and solar panels are now more commonly funded under ECO4 where appropriate for the property.
Streamlined Application Process
Digital verification systems have reduced paperwork requirements. Many benefit checks can now be completed electronically, speeding up the eligibility confirmation process.
How Do I Apply for ECO4 Before It Closes?
The application process remains the same as throughout the scheme. Here are the steps to follow:
- 1
Check your eligibility
Use our eligibility checker or contact Home Energy Scotland to confirm you meet the criteria. This initial check takes only a few minutes.
- 2
Provide documentation
Have proof of benefits or income ready. If applying via LA Flex, your council may need to verify your circumstances.
- 3
Schedule a property assessment
A qualified surveyor visits your home to identify suitable improvements and confirm technical feasibility.
- 4
Receive funding approval
Once eligibility and survey are complete, funding is approved for recommended measures.
- 5
Installation completed
Approved installers carry out the work and arrange any necessary certifications.
Will There Be an ECO5 Scheme After ECO4?
The UK Government has consistently supported energy efficiency improvements through successive ECO schemes since 2013. While no official announcement has been made about ECO5, historical patterns suggest:
- A successor scheme is likely given net zero commitments
- Eligibility criteria may change in any new scheme
- There may be a gap between ECO4 closing and a new scheme launching
- Current eligibility does not guarantee future eligibility
Recommendation: If you qualify for ECO4, apply now rather than waiting for a potential successor scheme. Funding under ECO4 is guaranteed; future schemes are not.
Check Your ECO4 Eligibility
Find out if you qualify for ECO4 funding before the March 2026 deadline. Our eligibility checker provides an initial assessment in minutes.
Frequently Asked Questions
The ECO4 scheme is scheduled to end in March 2026. Applications submitted before this date will be processed, but new applications after the deadline may not be accepted. A successor scheme is expected but not yet confirmed.
The UK Government has indicated intentions to continue supporting energy efficiency improvements, but details of any ECO5 scheme have not been officially announced. Households should apply under ECO4 while funding remains available.
Yes, ECO4 funding remains available until March 2026. However, application processing takes time, so applying early in 2026 is advisable. Waiting until the deadline risks missing out if processing times extend.
ECO4 covers insulation measures including loft, cavity wall, and solid wall insulation. Heating system improvements such as boiler replacements and heat pumps are also funded. The specific measures depend on property assessment.
ECO4 eligibility criteria have remained largely stable, but LA Flex pathways have expanded. More local councils now participate, allowing households on lower incomes who do not receive qualifying benefits to access funding.
Contact Home Energy Scotland or use our eligibility checker to determine if you qualify. If eligible, you will be connected with an approved installer who manages the application and assessment process on your behalf.