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Japan Subsidy Finder 2026: Home Energy, Water Heaters, Windows, EVs and SME Software

Choose what you want to do (insulated windows, a new water heater, a new home, an EV, handrails, business software or AI) to see national subsidies you may be able to use, with amounts, deadlines and status, plus a link to local programs in your prefecture. Checked on official sites on Nov 2, 2026. Free, nothing is sent.

1. Who is it for?
2. Prefecture Used to link to local programs.
3. What do you want to do? (any)
4. Your home

This tool points you to major national subsidies you may be able to use. Whether you qualify and how much you get depend on detailed conditions (work, products, timing), and this site does not determine or guarantee eligibility. Subsidies close early when funds run out. Before applying or signing a contract, always check the official program site, your contractor or dealer, and your local government.

How to use it

  1. Choose individual or business and tick what you want to do.
  2. For programs marked "likely" or "depends", check eligible products, work and deadlines on the official site.
  3. For housing programs, a registered contractor or dealer applies. Tell them which subsidy you want when you ask for a quote and confirm they are registered.
  4. Most local programs require applying before you sign or start work. Check them first.

FAQ

When do Japan's 2026 home energy subsidies end?

For the 2026 housing energy campaign (Mirai Eco Housing, window renovation, water heater and rental water heater programs), reservations close by Nov 16, 2026 and applications by Dec 31, 2026 at the latest. They end earlier if funds run out.

Do I apply myself?

For most housing programs, including the 2026 housing energy campaign, a registered contractor or dealer applies and passes the subsidy on to you as a discount or cash. For the EV (CEV) subsidy the buyer applies to the Next Generation Vehicle Promotion Center, and for the care-insurance home modification you apply to your city office.

Can I combine national and local subsidies?

Often yes, but some local programs exclude costs already covered by national subsidies. You cannot claim two national programs for the same work or product.

Is there a subsidy for home batteries?

The national DR home battery program closed on May 29, 2026 when its budget ran out, and SII says it will not reopen. Look for prefectural or municipal battery subsidies.

Is my input sent anywhere?

No. Everything runs in your browser.

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