Calculation of usage fee
Update date: October 28, 2019
Sewer usage fees are calculated according to the following table.
Note 1: Use Table 1 to calculate one month's usage fee, and Table 2 to calculate two months' usage fee.
Note 2: Normally, the amount is calculated for two months at once, so please use Table 2.
Note 3: Due to the increase in the consumption tax rate and local consumption tax rate that came into effect on October 1, 2019, the consumption tax equivalent included in the sewer usage fee will change from 8% to 10%. A consumption tax equivalent of 10% will be applied from the sewer usage fee calculated for December 2019.
| Type of sewage | classification | emissions | rate |
|---|---|---|---|
| General wastewater | basic usage fee | Minutes below 8 cubic meters | 560 yen |
| excess usage fee | More than 8 and less than 20 cubic meters | 110 yen per cubic meter | |
| More than 20 but less than 30 cubic meters | 140 yen per cubic meter | ||
| More than 30 and less than 50 cubic meters | 170 yen per cubic meter | ||
| More than 50 and less than 100 cubic meters | 200 yen per cubic meter | ||
| More than 100 and less than 200 cubic meters | 230 yen per cubic meter | ||
| More than 200 but less than 500 cubic meters | 270 yen per cubic meter | ||
| More than 500 but less than 1,000 cubic meters | 310 yen per cubic meter | ||
| More than 1,000 cubic meters | 345 yen per cubic meter | ||
| Bathroom sewage | basic usage fee | Minutes below 8 cubic meters | 280 yen |
| excess usage fee | More than 8 cubic meters | 26 yen per cubic meter |
Calculation example 1: If the monthly water usage in a typical household is 20 cubic meters
(When calculating based on consumption tax of 10%)
- Minutes below 8 cubic meters
560 yen
- Exceeding 8 square meters and up to 20 cubic meters
12 cubic meters x 110 yen = 1,320 yen
total
560 yen + 1,320 yen = 1,880 yen
1 month usage fee
1,880 yen x 1.10 (consumption tax equivalent) = 2,068 yen.
| Type of sewage | classification | emissions | rate |
|---|---|---|---|
| General wastewater | basic usage fee | Minutes below 16 cubic meters | 1,120 yen |
| excess usage fee | More than 16 and less than 40 cubic meters | 110 yen per cubic meter | |
| More than 40 and less than 60 cubic meters | 140 yen per cubic meter | ||
| More than 60 but less than 100 cubic meters | 170 yen per cubic meter | ||
| More than 100 and less than 200 cubic meters | 200 yen per cubic meter | ||
| More than 200 but less than 400 cubic meters | 230 yen per cubic meter | ||
| More than 400 but less than 1,000 cubic meters | 270 yen per cubic meter | ||
| More than 1,000 but less than 2000 cubic meters | 310 yen per cubic meter | ||
| More than 2,000 cubic meters | 345 yen per cubic meter | ||
| Bathroom sewage | basic usage fee | Minutes below 16 cubic meters | 560 yen |
| excess usage fee | More than 16 cubic meters | 26 yen per cubic meter |
Calculation example 2: When the water usage for a typical household is 40 cubic meters over two months
(When calculated based on consumption tax of 10%)
- Less than 16 cubic meters = 1,120 yen
- Over 16 cubic meters and up to 40 cubic meters = 24 cubic meters x 110 yen = 2,640 yen
total
1,120 yen + 2,640 yen = 3,760 yen
2 months usage fee
3,760 yen x 1.10 (consumption tax equivalent) = 4,136 yen.
Inquiries regarding this page
Inagi City Urban Environment Development Department Sewerage Division
2111 Higashi-Naganuma, Inagi-shi, Tokyo
Phone: 042-378-2111 Fax: 042-378-9719
