RD Calculator: Recurring Deposit Maturity Amount

Shabana Qureshi’s parlour in Ashoka Garden, Bhopal, makes most of its year between the second week of November and the end of February. Two chairs, three girls on wedding days, bridal packages booked six weeks ahead. In late June it makes almost nothing, and in July and August it makes less than that.

She opened a five-year recurring deposit in November at ₹5,000 a month, because the counter clerk was right that she should be saving and because ₹5,000 was obviously affordable. It was obviously affordable in November. It was obviously affordable in December, January, February and March. In June, July, August and September it was not, and on the fourth consecutive miss the account stopped being an account she was allowed to pay into.

Nothing about that was a surprise to the scheme. It is written down, in ordinary language, in the rules. It surprised Shabana because nobody reads the rules for the safest product in the shop.

Shabana is a composite character; the rules and the arithmetic below are real and checkable.

The two rules that decide everything

A post office recurring deposit runs under the National Savings Recurring Deposit Scheme, 2019, notified in December 2019 alongside the rest of the small savings rules. Two of its clauses matter more than the interest rate, and neither gets said out loud at the counter.

Rule one: a missed instalment carries a default fee of one rupee for every hundred rupees of the instalment, for each month it stays unpaid. On a ₹5,000 account, that is ₹50 a month.

Rule two: four consecutive defaults, and the account is discontinued. It can be revived, but only within two months from the month of the fourth default, and only by clearing every missed instalment together with every default fee. Miss that window and the account accepts no further deposits, permanently.

What the default fee actually costs

One rupee per hundred sounds like a rounding error, which is exactly why nobody prices it.

Price it. A ₹50 monthly fee on a ₹5,000 instalment is 1% of that instalment per month. Annualise it and you get roughly 12% a year. The account itself pays a notified rate in the region of 6.7% at the time of writing, reviewed quarterly by government.

So a deferred instalment is a loan you have taken from your own savings plan at about 12% a year, secured against a balance earning about 6.7%. The spread runs against you by more than five percentage points, on money that was supposed to be the safe part of your finances.

And it is worse than a bank overdraft in one specific way: an overdraft costs less the faster you clear it, which rewards the instinct to fix it immediately. Here the fee accrues in whole months, so paying on the tenth costs the same as paying on the twenty-eighth. The instinct to scramble is unrewarded; the instinct that actually pays is to have never needed to.

What nobody tells you: the same scheme pays you to do the opposite

This is the part that makes the whole story avoidable, and it appears in no conversation at any counter.

The scheme permits deposits in advance, for six months or more, up to five years, and it pays a rebate for doing so. The rebate is stated per hundred rupees of the account’s denomination: an order of ₹10 for six or more advance deposits, and ₹40 for every twelve advance deposits. Confirm the current figures at the counter, since these are set by the same notification that sets the rate.

Applied to Shabana’s account, that is where the money is. A ₹5,000 instalment is fifty units of a hundred rupees. Paying twelve instalments in advance in January — when the wedding season money is actually in the drawer — means ₹60,000 out and roughly ₹2,000 of rebate in. Do it every year for five years and the rebate is around ₹10,000.

Now put the two paths side by side over the account’s full life. Total deposits either way: ₹3 lakh across sixty instalments. Maturity value at a rate around 6.7%, quarterly compounded: roughly ₹3.57 lakh, so the account’s entire interest earning is about ₹57,000.

The advance-payment path adds roughly ₹10,000 of rebate. The four-defaults-a-year path pays roughly ₹500 of fees each year, about ₹2,500 across the term, before counting the discontinuation risk. The swing between the two is about ₹12,500 — a little over a fifth of everything the account will ever earn her, decided entirely by which month she pays in and not at all by how much she saves.

The rate lock, which cuts both ways

One more property of a recurring deposit is worth understanding before you sign, because it is genuinely unusual and is described as a benefit when it is really a trade.

The rate that applies to an RD is fixed at the time the account is opened and runs for the whole tenure. Small savings rates are notified quarterly and bank RD rates change whenever the bank chooses, but neither change touches an account already running. You are, without paying for it, buying a multi-year rate lock.

If rates fall over the next five years, that lock is worth real money and you should be pleased. If rates rise, you are holding a below-market return with no cheap way out: premature closure is permitted only after a minimum period and pays the far lower savings-account rate on what you have accumulated, which usually wipes out more than the difference you were trying to capture. A recurring deposit is a commitment in both directions, and the direction that hurts is the one nobody illustrates.

What to actually do

Size the instalment to your worst month, not your average month. This is the single change that would have saved Shabana the entire episode. Her average month supports ₹5,000. Her August supports perhaps ₹1,500. The instalment that survives five years is the August one. Anything above it is a bet that no lean stretch will last four months, which for a seasonal business is not a bet, it is a schedule.

Pay in advance in your flush season. If your income arrives in a season rather than in a month, use the advance-deposit facility deliberately: twelve instalments paid in the good month, earning a rebate, instead of twelve monthly attempts, four of which will fail. The scheme was built to accommodate exactly this and almost nobody uses it.

Know your fourth-default date before you miss the first one. The revival window is short and starts from the month of the fourth default, not from when you notice. Put it in a calendar the day you miss instalment number one.

Run a smaller RD alongside a plain savings buffer rather than one large RD. A ₹2,000 RD you will never miss plus ₹3,000 a month into a savings account you can raid produces more money and less damage than a ₹5,000 RD that collapses in year one.

What this does not mean

It does not mean recurring deposits are a bad product or a trap. The rules are published, the default fee is small in absolute terms, and for someone on a salary credited on the first of every month the whole issue never arises. The problem is not the product. It is that the product assumes a monthly income and is sold hardest to people who do not have one.

It does not mean a discontinued account is money lost. The deposits already made continue to be yours and continue to earn under the scheme’s rules for such accounts. What dies is the plan — the maturity figure the account was opened for becomes unreachable, because the missing instalments can never be made. The money survives; the goal does not.

It does not mean you should chase a higher return instead. For a goal you cannot postpone — a deposit on a shop, a sister’s fees, equipment you have already promised a supplier — the RD family is the right family, and the volatility of an equity SIP over three to five years is not a fair swap for certainty. This article is about choosing the instalment and the payment month correctly, not about leaving for a riskier product.

What it does mean is narrow and worth ₹12,500 on a ₹3 lakh commitment: a recurring deposit prices your consistency, not your generosity, and it prices it in both directions. Shabana revived hers in the first week of October by borrowing from her mother, then reopened the following year at ₹2,000 a month and paid twelve months forward every January. The maturity figure is smaller. She has reached it three times.

Frequently asked questions

What exactly is the penalty for missing an RD instalment?

Under the post office scheme, a default fee of one rupee per hundred rupees of the instalment applies for each month the instalment remains unpaid, and the arrears must be cleared with the fee before a current instalment can be accepted. Bank RDs charge their own penalty, set by the bank rather than by the scheme, so the figure varies and should be checked in the account terms.

What happens after four consecutive missed instalments?

The account is treated as discontinued. It can be revived within two months from the month of the fourth default by paying all arrears together with the default fees; if that window closes, the account cannot accept further deposits. The balance already accumulated is not forfeited.

Can I really pay a whole year of instalments in advance?

Yes, and the scheme pays a rebate for doing so, in bands based on six or more and twelve or more advance instalments, calculated per hundred rupees of the account’s denomination. For anyone with seasonal or irregular income this is the most useful clause in the scheme and the least mentioned. Confirm the current rebate figures when you deposit, as they are notified alongside the rate.

Does the interest rate change if the government revises small savings rates?

Not for an account already open. The rate applicable when the account is opened runs for its full tenure, which protects you if rates fall and locks you in if they rise. Closing early to chase a higher rate generally pays the much lower savings-account rate on the accumulated balance, which usually costs more than the improvement is worth.

Is an RD better than a SIP for a three-year goal?

For a goal with a fixed date and no room to slip, the certainty of an RD is the point and the comparison with an equity SIP is not really a comparison of returns — it is a comparison of whether you can accept a range of outcomes. Where a SIP genuinely wins is that a missed contribution carries no penalty and no discontinuation risk, which for irregular income is a real advantage worth weighing against the uncertainty.

Regulatory source: the National Savings Recurring Deposit Scheme, 2019, notified in December 2019, sets the default fee, the four-consecutive-default discontinuation rule, the revival window and the advance-deposit rebate; the small savings scheme rules are published by National Savings Institute (nsiindia.gov.in) and administered through India Post. The annualisation of the default fee, the rebate-versus-fee comparison across a full term and the character of Shabana are this article’s own. Rates, fees and rebate figures quoted are those at the time of writing and are revised by notification.

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Disclaimer: General information, not financial or tax advice. “Shabana Qureshi” is a composite character, not a real individual, and the amounts shown are constructed for illustration. Bank recurring deposits are governed by the bank’s own terms rather than by the post office scheme. Verify current rates, fees and rules before opening or reviving an account.