OTM / NACH Mandate

Full form: One Time Mandate / National Automated Clearing House

Banking

OTM (One Time Mandate) or NACH (National Automated Clearing House) is a standing instruction that allows mutual fund companies or other financial institutions to auto-debit your bank account for SIPs, loan EMIs, and insurance premiums without needing to approve each transaction.

In detail

OTM / NACH process:n1. Submit OTM form (physical or digital) with bank account details and maximum amount limitn2. Bank verifies and activates the mandate (7-14 days for physical, instant for digital/net banking)n3. Financial institution debits up to the mandate amount as per schedulen4. You receive SMS/email before each debitnnOTM security features:nMaximum amount cap: cannot debit more than authorized amountnYou can pause or cancel anytimenBank notifies you of upcoming debitsnnFor SIP: most platforms use NACH mandate. Once set up, SIPs run automatically without monthly approval.

Real-life example

🇮🇳 India example

Anjali sets up Rs 20,000 OTM mandate with her bank for mutual fund SIPs. She has 3 SIPs: Rs 10K Nifty 50, Rs 5K mid cap, Rs 5K international. All three debit from her account on SIP dates automatically. If she wants to increase one SIP: create a new/amended OTM. Cancel anytime via bank net banking. The OTM makes SIP truly automatic -- she never needs to manually approve.

Frequently asked questions

Is OTM safe? Can the financial institution debit any amount? ▼

Safe. OTM has a maximum amount ceiling you set. Institution cannot debit more than the authorized limit. RBI regulates NACH mandates strictly. You receive advance notification (SMS/email) before each debit. You can cancel the mandate anytime via your bank's net banking. Review your active mandates periodically at your bank.