Minimum Balance Charges: How Banks Calculate Them and What RBI Allows

Few things annoy a new account holder like a small deduction with an unclear name. It’s usually the result of one misunderstood number. Once you see how that number works, the charge is easier to avoid, or to challenge when it’s wrong.

The number banks actually test

Most people picture a floor that their balance must never go below. Many savings accounts instead use an average, known as the average monthly balance (AMB). Add up your closing balance for each day of the month, and divide by the number of days.

So you can dip below the required figure on some days and still pass.

Suppose your bank’s requirement is ₹10,000, and in a 30-day month you hold:

• ₹20,000 for the first 10 days, which adds up to ₹2,00,000
• ₹2,000 for the next 20 days, which adds up to ₹40,000

Your AMB is (₹2,00,000 + ₹40,000) ÷ 30 = ₹8,000. You’re ₹2,000 short, although you held twice the requirement for a third of the month.

Some accounts are assessed quarterly or on another basis, so check how yours is measured.

What RBI’s rules say

RBI set out rules on these charges in 2014, effective from April 2015, and in May 2025 it penalised a co-operative bank for charging without notifying customers. We found no change to the points below as of November 2026, but check the current wording on the RBI website:

1. You must be told. The bank must notify you of a shortfall clearly by SMS, email or letter, and say that a charge will apply if you don’t restore the balance.
2. You get time. Charges may be recovered only if you haven’t restored the balance within a reasonable period, of at least one month from the notice.
3. It must be proportionate. The charge should be a fixed percentage of the gap between your actual balance and the agreed minimum. Banks may use slabs to set it.
4. It must be reasonable. It shouldn’t be out of line with the average cost of providing the service.
5. It can’t push you into the red. Your balance shouldn’t go negative solely because of this charge.
6. It must be disclosed. The rules require banks to publish their policy and tell customers about it.

RBI doesn’t set one minimum amount for all banks. The minimum and the rate of penalty come from each bank’s own board-approved policy, so they can differ widely.

Estimating your own charge

Your bank’s schedule of charges gives the percentage or the slab. Continuing with the example above, suppose the bank charges 5% of the shortfall:

5% of ₹2,000 = ₹100, plus any applicable taxes

Remember the proportion. A shortfall of ₹5,000 at the same rate would be ₹250. If your charge seems far out of line with your shortfall, ask the bank to show you how it worked it out.

How to avoid it

• Move the account. If your balance is often low, ask about a zero-balance BSBD account, which has no minimum balance at all.
• Keep your salary or main income flowing into it. Some banks waive the requirement while a qualifying salary arrives. If you change jobs, check whether this benefit ends.
• Time large payments. If your rent leaves on the 2nd and your salary arrives on the 30th, you may be low for most of the month. Moving a payment date could raise your average.
• Set an alert. Some apps show the average so far. If yours doesn’t, a quick calculation mid-month will tell you what you need.
• Close accounts you don’t use. A forgotten account with a minimum balance can quietly gather charges. Clear any dues, follow the bank’s closure process, and keep the closure letter.

Don’t borrow to meet a minimum balance. Any interest you pay on a loan or card is likely to cost far more than the penalty you’re trying to avoid.

Checking and challenging a charge

Look for lines in your statement such as “non-maintenance”, “MAB charges” or “AMB charges”. Then do this:

1. Check your average. Work it out for that month, using the example above.
2. Look for the notice. Did you get an SMS, email or letter, and at least one month to restore the balance?
3. Check that your contact details are correct. A notice sent to an old number is a common cause of surprise charges, so update them with your bank.
4. Write to the bank. Use its grievance channel. Quote the date and the amount, and ask it to reverse the charge if it broke the rules. You can also ask for a goodwill reversal of a valid charge, though the bank doesn’t have to agree.
5. Escalate if you need to. If there’s no reply within 30 days, or you’re not happy with it, you can complain to the RBI Ombudsman at cms.rbi.org.in, under the Reserve Bank – Integrated Ombudsman Scheme, 2026. You need to do this within 90 days of the end of that period or of the bank’s last communication, whichever is later. It’s free.

Comparing accounts with this in mind

A penalty can quickly wipe out interest. For example, on a ₹10,000 balance at an illustrative 3%, you’d earn about ₹300 a year. Two charges of ₹150 would take all of it. So when you compare savings accounts, include the realistic chance of a shortfall, not just the rate.

Bottom line

Learn how your account’s average works, and keep your contact details up to date so that you receive any warnings. If you often fall short, a BSBD account may be the simplest answer. Banks can change their requirements and charges, so check the current terms with your bank.