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TOTO TCF8CKM31 Ad#Electric Bidet Seat · Japan-only model★4.68JP¥61,500 TOTO TCF8CKM31 Installation
The math
Japan price incl. taxJP¥61,500
Tax-free price (paid in store)JP¥55,909
In USD≈ US$357
 Japan consumption tax 10% (food 8%)
Power & flights
Voltage100V
PlugType A plug
FrequencyTBD
FlightsOK on the plane
 Country-by-country results below
Kakaku.com rating ★ 4.68
Pros: Automatic lid opening that users find convenient
Pros: Many users installed it themselves following the manual
Pros: Wash comfort and quietness rated above the class average
Cons: Some settings buttons moved to the back of the remote, which some users find awkward
 Pros and cons summarized by us from public reviews

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TOTO Washlet KM Series TCF8CKM31

TOTO ウォシュレット KMシリーズ TCF8CKM31 · Japan-only model

Price JP¥61,500 · tax-free JP¥55,909
Voltage 100V · Type A plug
Source Kakaku.com · 10-24
Electric Bidet Seat

As of 2026-10-24, the lowest online price on Kakaku.com is JP¥61,500 (incl. tax); of the 21 destinations we check, it needs an accessory (plug adapter or transformer) in 3 and will not work in 18.

TOTO KM Series instant-heating bidet seat with automatic lid opening and a wall-mounted remote; 84 kWh per year. Japan-only 100V model that needs installation.

BestJapanBuyData updated 2026-10-24 · sources at the end

Lowest online price (incl. tax) JP¥61,500 (shipping not included). At a tax-free shop you pay the tax-free price JP¥55,909 at the register (≈ US$357). How the new tax-free refund works ›

100V, Type A plug, TBDHz. Will it work in your country? →

Flights: OK on the plane. No battery: OK in carry-on or checked baggage (large items are best checked)

Kakaku.com rating ★ 4.68/5 (6 reviews), not our own rating.

Pros: Automatic lid opening that users find convenient; Many users installed it themselves following the manual; Wash comfort and quietness rated above the class average

Cons: Some settings buttons moved to the back of the remote, which some users find awkward

Good for: TBD

Sold at major electronics stores in Japan (Bic Camera, Yodobashi Camera and others); check stock before you go. Find the nearest store.

  • #JapanShopping
  • #JapanElectricBidetSeat
  • #TOTO
  • #TaxFreeJapan

Edited 2026-10-24 · prices for reference only · names: TOTO Washlet KM Series TCF8CKM31 / TOTO ウォシュレット KMシリーズ TCF8CKM31

Japan price and tax refund

Price in Japan

Lowest online price
JP¥61,500
Tax-free price
JP¥55,909
In USD (reference)
≈ US$357

Japan price: Kakaku.com, 2026-10-24 (shipping not included)
USD rate JP¥1 = US$0.006377 (2026-10-23) · Prices are for reference only; check in store.

How tax-free shopping works

Until Oct 31, 2026: show your passport at a tax-free shop and pay the tax-free price at the register (at least JP¥5,000 excl. tax per store per day).

Calculate the refund · New tax-free rules explained

Specs

BrandTOTO
ModelTCF8CKM31
VersionJapan-only model
Voltage100V
FrequencyTBD
PlugType A
PowerTBD
BatteryNo built-in battery
Released2025
Heating methodInstant (瞬間式)
ControlsWall-mounted remote
DeodorizerYes
Auto open/close lidYes
Annual power use84kWh/yr
Warranty in mainland ChinaNo
Panel languageJapanese

Spec sources: Kakaku.com specifications page

Will it work in your country?

Based on each country's standard voltage, frequency and outlet types. Pick your country to put it at the top.

Country / regionResultWhat to know
Mainland China220V · 50Hz · Type A/I Will not work Voltage not compatible: the rated voltage doesn't cover the local voltage (e.g. a Japan-only 100V model on 200–240V will burn out); transformers are not recommended for high-wattage appliances
Hong Kong220V · 50Hz · Type G Will not work Voltage not compatible: the rated voltage doesn't cover the local voltage (e.g. a Japan-only 100V model on 200–240V will burn out); transformers are not recommended for high-wattage appliances
Different plug shape; you need a plug adapter
Macao220V · 50Hz · Type G/D Will not work Voltage not compatible: the rated voltage doesn't cover the local voltage (e.g. a Japan-only 100V model on 200–240V will burn out); transformers are not recommended for high-wattage appliances
Different plug shape; you need a plug adapter
Taiwan110V · 60Hz · Type A/B Needs an accessory Most Japanese 100V appliances work in 110–120V regions, but heating appliances may run hot; a step-down transformer is recommended
Singapore230V · 50Hz · Type G Will not work Voltage not compatible: the rated voltage doesn't cover the local voltage (e.g. a Japan-only 100V model on 200–240V will burn out); transformers are not recommended for high-wattage appliances
Different plug shape; you need a plug adapter
South Korea220V · 60Hz · Type C/F Will not work Voltage not compatible: the rated voltage doesn't cover the local voltage (e.g. a Japan-only 100V model on 200–240V will burn out); transformers are not recommended for high-wattage appliances
Different plug shape; you need a plug adapter
United States120V · 60Hz · Type A/B Needs an accessory Most Japanese 100V appliances work in 110–120V regions, but heating appliances may run hot; a step-down transformer is recommended
Thailand220V · 50Hz · Type A/B Will not work Voltage not compatible: the rated voltage doesn't cover the local voltage (e.g. a Japan-only 100V model on 200–240V will burn out); transformers are not recommended for high-wattage appliances
Malaysia240V · 50Hz · Type G Will not work Voltage not compatible: the rated voltage doesn't cover the local voltage (e.g. a Japan-only 100V model on 200–240V will burn out); transformers are not recommended for high-wattage appliances
Different plug shape; you need a plug adapter
Philippines220V · 60Hz · Type A/B Will not work Voltage not compatible: the rated voltage doesn't cover the local voltage (e.g. a Japan-only 100V model on 200–240V will burn out); transformers are not recommended for high-wattage appliances
Vietnam220V · 50Hz · Type A Will not work Voltage not compatible: the rated voltage doesn't cover the local voltage (e.g. a Japan-only 100V model on 200–240V will burn out); transformers are not recommended for high-wattage appliances
Indonesia230V · 50Hz · Type C/F Will not work Voltage not compatible: the rated voltage doesn't cover the local voltage (e.g. a Japan-only 100V model on 200–240V will burn out); transformers are not recommended for high-wattage appliances
Different plug shape; you need a plug adapter
India230V · 50Hz · Type C/D/M Will not work Voltage not compatible: the rated voltage doesn't cover the local voltage (e.g. a Japan-only 100V model on 200–240V will burn out); transformers are not recommended for high-wattage appliances
Different plug shape; you need a plug adapter
Australia230V · 50Hz · Type I Will not work Voltage not compatible: the rated voltage doesn't cover the local voltage (e.g. a Japan-only 100V model on 200–240V will burn out); transformers are not recommended for high-wattage appliances
Different plug shape; you need a plug adapter
New Zealand230V · 50Hz · Type I Will not work Voltage not compatible: the rated voltage doesn't cover the local voltage (e.g. a Japan-only 100V model on 200–240V will burn out); transformers are not recommended for high-wattage appliances
Different plug shape; you need a plug adapter
Canada120V · 60Hz · Type A/B Needs an accessory Most Japanese 100V appliances work in 110–120V regions, but heating appliances may run hot; a step-down transformer is recommended
United Kingdom230V · 50Hz · Type G Will not work Voltage not compatible: the rated voltage doesn't cover the local voltage (e.g. a Japan-only 100V model on 200–240V will burn out); transformers are not recommended for high-wattage appliances
Different plug shape; you need a plug adapter
Germany230V · 50Hz · Type C/F Will not work Voltage not compatible: the rated voltage doesn't cover the local voltage (e.g. a Japan-only 100V model on 200–240V will burn out); transformers are not recommended for high-wattage appliances
Different plug shape; you need a plug adapter
France230V · 50Hz · Type C/E Will not work Voltage not compatible: the rated voltage doesn't cover the local voltage (e.g. a Japan-only 100V model on 200–240V will burn out); transformers are not recommended for high-wattage appliances
Different plug shape; you need a plug adapter
Italy230V · 50Hz · Type C/F/L Will not work Voltage not compatible: the rated voltage doesn't cover the local voltage (e.g. a Japan-only 100V model on 200–240V will burn out); transformers are not recommended for high-wattage appliances
Different plug shape; you need a plug adapter
Spain230V · 50Hz · Type C/F Will not work Voltage not compatible: the rated voltage doesn't cover the local voltage (e.g. a Japan-only 100V model on 200–240V will burn out); transformers are not recommended for high-wattage appliances
Different plug shape; you need a plug adapter

Flights (all destinations): OK on the plane: No battery: OK in carry-on or checked baggage (large items are best checked)

This model: 100V. Results follow published standards; some buildings or hotels may differ.

Overseas vs Japan-only model

No counterpart model listed yet.

Reviews

Third-party rating: 4.68 / 5 (6 reviews)
Rating source: Kakaku.com, 2026-10-24
The rating comes from a third-party site and is not our own. Pros and cons are our summary of public reviews.

Pros

  • Automatic lid opening that users find convenient
  • Many users installed it themselves following the manual
  • Wash comfort and quietness rated above the class average

Cons

  • Some settings buttons moved to the back of the remote, which some users find awkward

Where to buy

In Japan

Sold at major electronics stores in Japan (Bic Camera, Yodobashi Camera and others); check stock before you go.

Find the nearest store

Japanese phrases to show staff · Checkout checklist · Calculate the price after refund

Frequently asked questions

Can I use the TOTO TCF8CKM31 outside Japan?

The TOTO TCF8CKM31 is 100V with a Type A plug. Of the 21 destinations we check, it needs an accessory (plug adapter or transformer) in 3 and will not work in 18. See the table "Will it work in your country?" on this page for each country and region.

How much is the TOTO TCF8CKM31 in Japan tax-free?

As of 2026-10-24, the lowest online price on Kakaku.com is JP¥61,500 including tax. Tax-free or after the refund it is JP¥55,909. From Nov 1, 2026, you pay the tax-included price in store and get the tax refunded when you leave Japan (a fee may apply).

Where can I buy the TOTO TCF8CKM31 in Japan?

Sold at major electronics stores in Japan (Bic Camera, Yodobashi Camera and others); check stock before you go. The price we list is from Kakaku.com (2026-10-24); prices in store may differ.

Related Q&A

Sources

Updated 2026-10-24Prices are for reference only; check in store.MarkdownJSON