The deadline effect: a 3-week voucher gets used 5 times more often than a 2-month one

You would expect a longer deadline to get more vouchers used. It does the opposite, reliably and by a wide margin, and the reason is one of the better-documented quirks in how people treat time.

What is the deadline effect?

The deadline effect is the finding that a task with a near deadline gets done, and the same task with a far deadline gets postponed until the deadline is near, and then often missed. It applies to chores, which nobody finds surprising, and it applies just as strongly to things people actively want to do, which is the part that matters for a drawer full of vouchers.

The cleanest demonstration used a free pastry.

The experiment: a pastry and two deadlines

Suzanne Shu and Ayelet Gneezy gave people a gift certificate for a pastry at a local bakery. Half received one valid for three weeks, half one valid for two months. Asked to predict, people with the longer deadline expected to be more likely to redeem it. In practice 32% of the three-week group redeemed and 6% of the two-month group did. The longer window did not create more opportunities; it created more reasons to do it later.

The paper's title is the diagnosis: Procrastination of Enjoyable Experiences. The thing being put off was not a chore. It was a free pastry.

PeakVoucher does this from your own data. A wallet for the vouchers buried in your messages. Join the free beta →

Why does a long deadline lose?

The mechanism is present bias, the tendency to weigh today's small cost against a future benefit in a way that flips every time today arrives. O'Donoghue and Rabin formalised it in Doing It Now or Later: an agent who is slightly impatient about the present will plan to act tomorrow, and tomorrow will plan the same. A deadline far away keeps the plan comfortable. A deadline close enough to feel forces the act.

Vouchers make this worse in a specific way. They are pleasant, so there is no urgency from pain; they arrive as text, so they are out of sight; and the special-occasion feeling that comes with a gift card makes any ordinary Tuesday feel like the wrong day to spend it.

The same mechanism is why the follow-up is where deals die: nothing is refused, everything is deferred, and deferral has no natural end.

Is this why so many gift cards go unused?

It is a large part of it. Bankrate's survey found nearly half of US adults holding an unused card, most of them for over a year; the $23 billion nobody is spending is what the two-month group looks like at national scale. A five-year legal minimum on gift card expiry, which most countries with a rule have settled on, is good consumer protection and, by the logic above, terrible for redemption. The card is safe for five years, so it waits five years.

The point is not that long expiries are bad. It is that a long expiry gives you no deadline, so you have to supply one.

The numbers suggest the gap is growing rather than closing. When Bankrate repeated its survey in 2024, fewer adults held an unused card, but the average value per holder had risen to $244. A larger card is a more special occasion, and a more special occasion is easier to postpone. The cards most worth using are, by this logic, the ones most likely to wait.

How to manufacture a near deadline

You cannot change the expiry date printed in the message, but you can change the deadline you see. A wallet that shows only what expires within the next sixty days, ranked, turns a stack of long-dated vouchers into one short list with a near horizon. Fourteen days is the point at which the three-week effect kicks in, so that is where the colour changes. The rest of the wallet is still there, one tap away; it is simply not the first thing you look at.

The same logic says to review the list on a schedule, not when you happen to remember. A weekly glance at the expiring group is a recurring three-week deadline for everything you own. The rest of the method, capture on arrival and three fields per voucher, is in the guide to keeping track of gift cards.

A worked example: a $100 restaurant card arrives in March with a five-year expiry. Left alone, it is the two-month group. Given a decide-by date of the first Friday in April, it is the three-week group, and the decision on that Friday is small: this month, or move the date once. Two moves and it is spent, because a decision deferred twice stops feeling free.

• Give every voucher a decide-by date within three weeks of arrival, even if the expiry is years away.
• Look only at the next sixty days; let the rest wait out of sight.
• Review once a week, same day, under a minute.
• Pair a voucher with a planned purchase the day it arrives, so the decision is already made.

What the study does not say

It does not say that short expiries are good for consumers; a coupon that dies in a week is mostly a way to lose it. It does not say people are lazy; the three-week group was not more diligent, it simply had a deadline it could feel. And it is one study with one pastry, so the exact ratio is not a law of nature. The direction, though, has been replicated enough that you should plan on it.

How PeakVoucher does it

PeakVoucher's wallet opens on the expiring-soon group, with the days remaining on each row and the colour switching at fourteen days. Favourites float up inside each group so the one you actually intend to use stays visible. On the watch the list is the soonest-expiring nine vouchers and nothing else, which is the shortest deadline of all: the one you see when you check the time.

Hen Eytan · Founder, UPeak

Builds the UPeak apps and writes up the research behind them.