Green tax credits, grants and rebates: how to find them

Making your home more energy-efficient or switching to clean energy can involve upfront costs. To encourage households to make these changes, many governments and utility companies offer financial support — tax credits, grants, rebates, subsidised loans and export payment schemes. The catch: the specifics vary so much between countries (and within them) that quoting numbers or programme names here would do more harm than good. This guide explains what types of support exist and how to find what is current where you are.

Why governments offer incentives

Upgrading home insulation, switching to heat pumps, installing solar panels and replacing old appliances all reduce energy consumption and greenhouse-gas emissions — goals that governments have committed to as part of national and international climate targets. These upgrades also reduce household energy bills and can support domestic industries and employment. Because the upfront costs can be significant, financial incentives help shift the economics in favour of making the change sooner rather than later, accelerating the rollout of new technology and making it accessible to more households.

Incentives also respond to market realities: when a new technology is expensive early in its deployment (as solar PV and heat pumps were for many years), subsidies help bring down costs through increased manufacturing scale. As technologies mature and costs fall, support schemes tend to be reduced or redirected.

Types of support

Different governments use different mechanisms. You may find one or several of the following in your country or region:

Tax credits

A tax credit directly reduces the amount of tax you owe — which is different from a tax deduction, which reduces your taxable income. Tax credits for home energy improvements may cover a proportion of eligible costs. They are typically claimed through your annual tax return. If you pay little or no tax, you may not be able to use a tax credit effectively; some schemes are refundable (you can receive the value even if it exceeds your tax bill) and others are not.

Grants and rebates

A grant is money provided to fund an improvement, either paid upfront or reimbursed after completion. A rebate is a refund of part of the cost, often paid by a manufacturer, retailer or utility company. Grants are usually income-means-tested or property-condition-tested — intended for households on lower incomes or homes in the poorest energy condition. Some are available to all households; others are targeted. Grants typically do not need to be repaid provided you meet the conditions.

Low-interest or subsidised loans

Some governments or public bodies offer loans at below-market interest rates for home energy improvements. Unlike grants, these do need to be repaid, but the lower interest rate reduces the cost of borrowing. Some operate as "green finance" products linked to mortgages; others are standalone schemes. Occasionally these are "on-bill" — repaid through your energy bill over time, which can make them easier to manage.

Feed-in tariffs and export payment schemes

If you install a renewable energy generation system — most commonly solar PV panels — you may generate more electricity than you use. Some countries operate schemes that pay you for the electricity you export to the grid, or that guarantee a set price for all electricity generated. These schemes have undergone many changes in recent years: some older guaranteed feed-in tariff rates have been replaced by market-rate or lower-rate export payments. Check what is currently available before assuming a particular scheme still exists in its original form.

Utility and energy company programmes

In some countries, energy companies are legally required to fund a certain amount of energy efficiency work, funded through levies on all customers. This can mean subsidised insulation, appliance upgrades or smart meters offered through your energy supplier. These programmes often prioritise customers on lower incomes or in fuel poverty. Contact your energy supplier or check their website to see what they currently offer.

Local and regional schemes

National schemes are not the whole picture. Many local councils, state or provincial governments, and regional bodies run their own programmes — often better targeted at local housing conditions, climate and income levels. It is worth checking at every level: national, regional and local.

Where to look for schemes

The most reliable sources are official. Here is where to start:

• Your national government's energy or environment department. Most publish pages listing available schemes. Search for "[your country] home energy grant" or "[your country] energy efficiency scheme" to find official pages. In the UK, check gov.uk; in the US, the Department of Energy and the IRS both publish relevant information; in Australia, the Clean Energy Regulator; in EU member states, check national energy agency websites as well as EU-level information.
• Your regional or local authority. Many run programmes independently of or alongside national schemes. Local authority websites are a reliable starting point.
• Your energy supplier or utility company. Contact them directly or visit their website. Ask specifically about energy efficiency schemes and what obligations they are under.
• National energy efficiency advice services. Many countries have funded advice services — impartial bodies set up to guide households through what is available, how to apply and what upgrades to prioritise.

How to qualify and apply

The application process varies by scheme, but several principles apply broadly:

• Check before you buy. Find out whether a scheme is available and whether you qualify before purchasing any equipment or signing any contracts. Many incentives can only be claimed for work not yet started, or require prior approval from the scheme administrator.
• Use approved installers. Most formal schemes require work to be carried out by certified or approved installers. Using an uncertified contractor typically disqualifies you. Check the certification requirements before getting quotes.
• Keep all receipts and paperwork. You will need evidence of what was installed, when, by whom and at what cost. Keep invoices, installation certificates, warranties and any approval letters in a safe place, as claims may be audited.
• Understand the timeline. Many schemes have application windows, deadlines or funding caps — once the money runs out, the scheme closes until a new allocation is made. Apply promptly rather than waiting.
• Check income and property eligibility. Some schemes are means-tested; others require the property to be in a certain condition (e.g., below a minimum energy rating) to qualify. Read the eligibility criteria carefully before investing time in an application.

Stack incentives with the upgrades themselves

An incentive is only as valuable as the underlying improvement it funds. Always make sure the upgrade genuinely makes sense for your home, your heating system and your climate — even without any support. If a technology would be a good choice without a grant, the grant makes it better. If it would be a poor choice without the subsidy, a limited grant may not change that.

Our guides on the main upgrades will help you understand what makes sense in your situation:

• Are solar panels worth it? — how to think about whether solar makes sense for your roof, climate and energy use
• Heat pumps explained — how they work, when they are a good fit and what to consider
• Home insulation guide — the types that save most, in the order that makes most sense to tackle

The catches to watch for

Financial incentive schemes often come with conditions that are easy to miss:

• Deadlines. Many schemes have closing dates or limited budgets. Schemes that were open last year may be closed, changed or over-subscribed now.
• Clawback conditions. Some schemes require you to maintain the improvement for a set number of years or repay the support if you sell the property within a given period. Check whether any conditions are attached to the property rather than to you personally.
• Caps on eligible costs. Many schemes only cover costs up to a defined limit. If your installation costs more than the cap, you pay the difference regardless of the scheme.
• Technology or product restrictions. Some schemes only support specific technologies, efficiency ratings or certified products. The cheapest product on the market may not qualify.
• Tax implications. In some countries, grants or rebates may need to be declared on your tax return or may affect other benefits you receive. Seek advice if you are unsure.

Your step-by-step checklist to find incentives

• Decide which upgrade you are considering (insulation, heat pump, solar, EV charger, etc.).
• Search your national government's official energy website for current schemes covering that upgrade.
• Check your regional or local authority website for additional local programmes.
• Contact your energy supplier to ask what efficiency support they currently offer.
• Check whether there are income or property eligibility criteria, and confirm you qualify before proceeding.
• Find out whether the scheme requires pre-approval before work starts — and apply for it if so.
• Get at least two or three quotes from certified/approved installers — not from cold callers.
• Keep all paperwork: quotes, invoices, certificates and correspondence.
• Submit your claim within any required timeframe after completion.
• Check the terms for any clawback period or conditions attached to the property.