Discount vouchers India: pay less at the brands you already buy

A brand voucher, or gift card, is a prepaid balance that can be spent only at that one brand. You buy ₹1,000 of it for less than ₹1,000, load it into the brand's app or enter the code at checkout, and it pays for the order in place of your card or UPI. The goods, the prices on the shelf and the delivery are the same as for anyone else; only the rupees that left your account are fewer.

There are four ways to pay less at a brand you already use, and they are easy to confuse. A discounted voucher lowers the price of the payment itself, so it works on every order at that brand until the balance runs out. Card rewards return a share of what you paid, in cashback or points, and depend on the card and the merchant category. Platform offers are the brand's own coupons and sale prices, which change week to week. Bank offers are discounts funded by a bank for paying with its card at a named merchant, usually with a minimum order and a cap.

The first two can often be combined: you buy the voucher with a card that still rewards the purchase. A platform coupon usually applies to the order whatever pays for it. A bank offer is the one that tends to collide, because its condition is that a particular card pays; when a voucher pays the order, that condition is not met.

Take one household's regular online spending, five brands, ₹9,000 a month. Every row is something they already buy: nothing is added to chase a discount. The discount on each brand is illustrative and set to show the spread; real rates differ by brand and change.

The blended rate across the basket comes to 7.6 percent, close to a flat 7.5 percent, which on ₹9,000 would be ₹675 a month and ₹8,100 a year. The ₹108 a year between the two shows that the brand mix matters more than the headline rate: the grocery app is the largest line and carries the smallest discount.

Card issuers treat voucher and gift card purchases differently. Some pay the normal reward rate, some exclude them entirely, and some cap them or pay a reduced rate. Read your card's reward terms for the words gift card, voucher or prepaid before assuming either way.

Here is the same ₹9,000 basket, four ways, with an illustrative card that pays 1 percent on everyday spending.

The gap between the second and fourth rows is the real gain: ₹8,126 a year, 7.52 percent of the basket. If your card excludes vouchers, the gain over what you do today is ₹7,128, not ₹8,208, because you give up ₹1,080 of rewards you were earning at full price. Both are worth having; neither is the ₹8,208 a voucher page would quote.

A voucher is a flat rate on everything at one brand. A card or a bank offer can pay more on a particular brand or order, and when it does, the voucher's advantage shrinks to the gap between them.

Start with a card that pays an illustrative 5 percent at food delivery and grocery apps. At full price on that card, the ₹2,000 of food delivery costs a net ₹1,900 after ₹100 of rewards. The 9 percent voucher costs ₹1,820. The voucher still wins, by ₹80 a month, ₹960 a year: 4 points, not 9. On the grocery app the same card returns ₹175 on ₹3,500, a net ₹3,325, against a voucher at 6 percent costing ₹3,290. The voucher wins by ₹35 a month, ₹420 a year, and across eight grocery orders a month that is about ₹4 an order. At that margin, a voucher that lapses or a refund stuck in a balance wipes out a year of gain.

This happens because a voucher purchase is usually recorded under the seller's merchant category, not the brand's. The accelerated rate a card pays at a food delivery app generally does not follow a food delivery voucher bought elsewhere, so the card's rate on the voucher, if any, is its base rate.

Bank offers work differently again. Take an offer of 10 percent off, capped at ₹150, on orders over ₹1,000 when paying with a particular bank's card. On a ₹1,500 order it gives ₹150, the same as a 10 percent voucher. On a ₹2,500 order the cap bites: ₹150 is 6 percent, while the voucher gives ₹250, ₹100 more. The cap is reached at exactly ₹1,500, so above that the voucher wins and below it they tie, provided the order clears the minimum.

Every gift card discount in India comes with terms, and three of them decide whether the discount survives.

Expiry. Vouchers carry a validity date, printed on the card or in its terms, and it varies by brand. Suppose the household buys three months of cab rides in one go: ₹3,600 of face value at 7 percent, for ₹3,348, to save ₹252. Then work goes hybrid, and only ₹2,400 is used before the vouchers lapse. They paid ₹3,348 for ₹2,400 of rides, ₹948 more than paying full price. Having used two-thirds of what they bought, they needed 93 percent just to break even. Across the whole basket at 7.6 percent, the break-even is 92.4 percent.

Refunds. When an order paid by voucher is cancelled or returned, the refund usually goes back to the voucher or gift card balance, not to your bank account. A ₹1,500 return from the marketplace becomes ₹1,500 you can spend only there. Harmless if you shop there every month; a problem if the return was why you stopped. Check the refund terms before the first order.

Lock-in. Buying in bulk ties money up at one brand. In interest, this costs very little: ₹10,500 of grocery vouchers for a quarter at 6 percent costs ₹9,870 and saves ₹630. The average prepaid balance over the three months is ₹4,935, which at an illustrative 2.75 percent in a savings account would have earned ₹33.93. Net of that, the bulk buy still saves ₹596.07. The real cost of lock-in is not interest but the loss of choice: if prices rise at that brand, a better offer appears elsewhere, or the brand changes its terms, the money is already there.

Some situations turn the discount into a loss, and the arithmetic in each is plain.

A brand you would not otherwise buy. A 10 percent voucher for a fashion brand, ₹2,000 of face value for ₹1,800, is a ₹200 discount on ₹1,800 you had not planned to spend. Measured against the month you would have had without it, you are ₹1,800 poorer, not ₹200 richer. The test for every voucher is the one this page started with: was this brand already on last month's statement?

A card balance you are carrying. If you revolve a credit card balance, a voucher bought on it is financed at card interest. At an illustrative 3.5 percent a month plus 18 percent GST on the interest, 4.13 percent a month, carrying the basket's ₹8,316 of vouchers for one month costs ₹343, half the ₹684 discount. Two months costs ₹687, and the discount is gone. Card rates of 3 to 3.5 percent a month are 36 to 42 percent a year before GST. And on most cards, once a balance is carried, new purchases also lose their interest-free period. Clear the balance first; vouchers are for money already in hand.

Orders too small to bother. A ₹300 pharmacy order at 7.5 percent saves ₹22.50. If buying a voucher means leaving the app, paying twice and pasting a code, that is a poor rate for your time.

This is an hour's work once, and a minute per order after that. Do it in this order, because each step decides whether the next one is worth doing.

One: list the brands. Take the last three months of bank and card statements and write down every brand you paid more than once, with the monthly average. Rank them by amount. For most households, three or four brands carry most of the online spend.

Two: check your card's terms. Find out what your card pays at each of those brands at full price, and whether it pays anything on voucher or gift card purchases. This single fact decides between the second and fourth rows of the stacking table. If you are not sure the card itself fits how you spend, the page on which credit card fits your spending works that through; this page takes the card as given.

Three: compare per brand. For each brand, subtract the card reward at full price from the voucher discount. Keep brands where the gap is a couple of points or more; drop the rest.

Four: buy at checkout, for the order amount. Until you know your monthly pattern well, avoid buying ahead. Note the validity of anything you do buy ahead.

Five: look again in three months. Discounts change, cards change their reward rules, and your brands change. A voucher that saved 9 percent last quarter may save 5 now.

Two things decide whether vouchers are worth your time: which brands you really pay every month, and whether a discounted voucher exists for them. Unyfy covers both.

First, the app reads your bank and card transaction emails and, on Android, transactional SMS, with no manual entry, and turns UPI handles into merchant names using a database of about 10,000 entries. What you see is your spending by merchant, named, so the grocery app and the cab app appear as brands with a monthly amount, not as a list of payment codes. That is step one of the order above, done from your own records rather than from memory.

Second, it sells discounted merchant vouchers. The discount is typically around 7.5 percent and varies by brand, so check the rate for each brand when you buy. It never asks for your bank password or UPI PIN, and every payment is one you authorise.

Check the voucher list for the brands you pay most, and check your card's terms on voucher purchases, step two above. Unyfy earns a margin on the vouchers it sells, which is why the brand-by-brand subtraction above is worth doing before you buy.

Install Unyfy on Android, or use the web app at app.unyfy.co.in on an iPhone.