Document And Entity Information - USD ($)	12 Months Ended
	Sep. 30, 2023	Feb. 02, 2024	Mar. 31, 2023
Document Information Line Items
Entity Registrant Name	BANTEC, INC.
Document Type	10-K
Current Fiscal Year End Date	--09-30
Entity Common Stock, Shares Outstanding		10,276,063
Entity Public Float			$ 6,900
Amendment Flag	false
Entity Central Index Key	0001704795
Entity Current Reporting Status	Yes
Entity Voluntary Filers	No
Entity Filer Category	Non-accelerated Filer
Entity Well-known Seasoned Issuer	No
Document Period End Date	Sep. 30, 2023
Document Fiscal Year Focus	2023
Document Fiscal Period Focus	FY
Entity Small Business	true
Entity Emerging Growth Company	true
Entity Shell Company	false
Entity Ex Transition Period	false
ICFR Auditor Attestation Flag	false
Document Annual Report	true
Document Transition Report	false
Entity File Number	000-55789
Entity Incorporation, State or Country Code	DE
Entity Tax Identification Number	30-0967943
Entity Address, Address Line One	37 Main Street
Entity Address, City or Town	Sparta
Entity Address, State or Province	NJ
Entity Address, Postal Zip Code	07871
City Area Code	(203)
Local Phone Number	220-2296
Entity Interactive Data Current	Yes
Document Financial Statement Error Correction [Flag]	false
Auditor Firm ID	106
Auditor Name	SALBERG & COMPANY, P.A.
Auditor Location	Boca Raton, Florida