T+1 settlement and ex-dividend dates
On 28 May 2024 US markets moved to next-business-day settlement. One consequence was that the ex-dividend date stopped falling before the record date and started falling on it — which quietly invalidated a lot of the dividend guidance still published online.
What settlement means
When you buy a share, the trade and the transfer of ownership are separate events. You agree the price today; the shares and the cash actually change hands at settlement, a fixed number of business days later. Until settlement completes, you are not yet the registered owner.
US equities settled in three business days (T+3) until 2017, then two (T+2), and since 28 May 2024 in one (T+1). Canada and Mexico moved on the same date; the UK and EU have been working toward the same change.
Why settlement decides the ex-dividend date
A company pays whoever appears on its share register on the record date. To appear on the register you must have settled, not merely traded. So the exchange sets an ex-dividend date: the first day on which buying the stock no longer gets you onto the register in time.
The ex-date is therefore derived from the record date by working backwards through the settlement cycle:
- Under T+2, a purchase on Monday settled Wednesday. To be on the register for a Wednesday record date you had to buy by Monday — so the ex-date was Tuesday, one business day before the record date.
- Under T+1, a purchase on Tuesday settles Wednesday. To make a Wednesday record date you must buy by Tuesday, so the first day that fails is Wednesday itself — the ex-date and the record date are now the same day.
What actually changed for investors
Less than you might expect, because the ex-dividend date was always the date that mattered and it still is. The rule for entitlement is unchanged in substance: own the shares before the ex-dividend date. Buy on the ex-date and the seller keeps the dividend.
What changed is the relationship between the dates, and that matters in three practical ways:
- Older guidance is now wrong. Any article, textbook or broker help page saying "the ex-date is one business day before the record date" describes the pre-2024 world. Plenty of such pages are still online and still ranking.
- Deriving one date from the other has a different offset. If you have a record date and want the ex-date, under T+1 they are the same day. Applying the old one-day offset puts you a day early.
- The last day to buy moved. Under T+2 the last qualifying purchase day was two business days before the record date; under T+1 it is one — the business day immediately before the ex-date, as always, but that day now sits directly before the record date too.
The rule that hasn't changed
Regardless of settlement cycle, this has always been the operative test, and it is still the only one you need:
To receive the dividend, you must already own the shares when trading opens on the ex-dividend date.
Equivalently: the last day to buy is the business day before the ex-date. Sell on or after the ex-date and you still receive the payment, because entitlement was fixed at the open.
Weekends, holidays and the working-backwards problem
Settlement counts business days, so weekends and market holidays shift these dates around. A record date on a Monday implies an ex-date on that Monday under T+1, with the last qualifying purchase on the preceding Friday. Add a holiday and everything moves again.
This is also why an ex-dividend date can never fall on a weekend or a market holiday: it always lands on a real trading session, resolved against the exchange's actual calendar rather than a plain one.
The trading calendar leaves a visible fingerprint on when ex-dates occur. Across every ex-dividend date in our covered universe over the past three years, Friday is by far the most common day, at about 30%, followed by Thursday and Monday at around 20% each; Wednesday is the least common at roughly 14%. Dividend dates are not evenly spread across the week.
The one exception worth knowing
For unusually large distributions — generally where the dividend is 25% or more of the share value — the ex-dividend date is not set before the record date at all. It is deferred until the first business day after the payment date. This mostly affects large special dividends, and it reverses the usual ordering of the dates entirely.
The bottom line
T+1 collapsed the gap between the ex-dividend date and the record date to zero. The practical rule for investors is what it always was — own the shares before the ex-date — but any calculation that derives one date from the other, and any source written before mid-2024, needs updating.
Related: ex-date vs record date vs payment date · how dividends work · the announcement and ex-dividend calendar.
This article is general educational information, not financial advice.