https://bt-p.co.jp/withholding-tax-special-due-date/2026-05-26T16:40:22+09:00https://bt-p.co.jp/estimated-income-tax-prepayment/2026-05-26T16:42:52+09:00https://bt-p.co.jp/fukuoka-resident-tax-notice/2026-05-26T16:46:30+09:00https://bt-p.co.jp/june-july-tax-labor-procedures/2026-05-26T16:34:08+09:00