Home renovation costs can easily run into the millions of yen. However, by utilizing the housing loan deduction and the renovation promotion tax system, you can significantly reduce your tax burden. This article provides a systematic explanation of the types of renovation tax deductions available, their eligibility conditions, and the process for filing a tax return, aimed at property owners and investors.
Can you use the housing loan deduction for renovations?
Yes, you can. But there are conditions. The housing loan deduction allows you to deduct 0.7% of your year-end mortgage balance from income tax and resident tax for up to 10 years, when you use a housing loan to acquire or renovate your primary residence. The maximum annual deduction is ¥140,000 (¥210,000 for certified housing renovations), totaling up to ¥1,400,000 over 10 years.
Eligibility conditions for renovation under the housing loan deduction
- Must be a self-owned and self-occupied residence
- Move in within 6 months of work completion
- Floor area of 50㎡ or more after renovation
- Total income of ¥20 million or less in the year of deduction
- Renovation costs (after subsidies) of ¥1 million or more
- Work must be certified by an architect, designated inspection agency, or equivalent
Types of eligible work
| Category | Description |
|---|---|
| Type 1 | Extension, reconstruction, major repairs |
| Type 2 | Renovation of more than half of floors, walls, or partitions in condominium units |
| Type 3 | Full renovation of floors and walls in rooms, kitchen, bathroom, or toilet |
| Types 4, 5, 6 | Seismic reinforcement, barrier-free, or energy-efficiency improvements |
The Renovation Promotion Tax System for loan-free renovations
The Renovation Promotion Tax System allows you to receive an income tax credit (up to ¥1,050,000) even for renovations done without a loan. The deduction period is limited to the year the work is completed, and it is calculated based on the standard cost equivalent, not the actual construction cost.
Types and maximum deduction amounts
| Work Type | Max Deduction |
|---|---|
| Seismic reinforcement | ¥625,000 |
| Barrier-free renovation | ¥600,000 |
| Energy-efficiency (with solar) | ¥675,000 |
| Multi-generational living renovation | ¥625,000 |
| Long-term excellent housing (seismic + energy + durability + solar) | ¥800,000 |
| Child-friendly renovation | ¥625,000 |
Other tax reduction measures beyond income tax
Property tax reduction
Carrying out seismic, barrier-free, energy-efficiency, or long-term excellent housing renovations can reduce your property tax by 1/2 to 1/3 in subsequent years. Applications must be submitted to your municipality within 3 months of work completion.
Gift tax exemption
If you receive renovation funds as a gift from parents or grandparents, up to ¥10 million can be exempt from gift tax. Conditions include: self-owned and self-occupied property, renovation costs of ¥1 million or more, and total income of ¥20 million or less.
Can you combine the housing loan deduction and the Renovation Promotion Tax System?
Whether combination is possible depends on the type of work:
- Seismic reinforcement → Can be combined with the housing loan deduction
- Barrier-free, energy-efficiency, multi-generational, long-term excellent housing → Cannot be combined with the housing loan deduction
Before planning, consult a specialist (tax accountant or architect) to identify the most advantageous combination of deductions.
How to file your tax return
To claim renovation deductions, you must file a tax return in the year following your move-in.
- Choose filing method: Blue return (up to ¥650,000 deduction, for rental income etc.) or white return
- Choose how to prepare: NTA online filing tool, tax software, manual, or hire a tax accountant
- Gather required documents: Tax return form, housing loan special deduction calculation sheet, certificate of registered matters, year-end loan balance certificate, renovation work certification, construction contract copy, etc.
- Submit: Electronic filing, in-person at tax office, or by mail
- Receive refund: Approximately 2–3 weeks for e-filing, 1–2 months for paper filing
FAQ: Common Questions About Renovation Tax Deductions
Q1. Can renovation loans receive the same deduction as housing loans?
Both qualify for the housing loan deduction, but eligible work and borrowing conditions differ slightly from standard housing loans. Renovation loans require a certified work certificate.
Q2. Can I claim the deduction if I renovate a property in my parents name?
No. The housing loan deduction requires that the property be self-owned. Properties in your parents name do not qualify until ownership is transferred. A gift tax may also apply.
Q3. Can I claim the housing loan deduction twice after buying and renovating a used property?
If all conditions are met, you may claim the deduction for both the acquisition and the renovation. However, all requirements for both must be satisfied.
Q4. Can I file the tax return myself if it is my first time?
Yes. The NTA online filing tool guides you through the process step by step. However, for complex situations with multiple deductions, consulting a tax accountant is recommended.
Q5. Can I file retroactively if I missed claiming the deduction?
Refund filings can be submitted retroactively up to 5 years. Late filings are accepted, but requests for correction must be made within 5 years of the statutory filing deadline.
