Most people plan their applications around deadlines. They open a spreadsheet in January, sort by closing date, and work backwards. It feels organised. It is also the single most expensive mistake in the whole process, because by January the majority of the season has already happened.

We track when every graduate programme in our feed opens. Across the 529 UK programmes in our 2025/26 dataset, here is the shape of the year, and what it means for when you should actually be sending things.

— the deadline is not when they stop reading

Large schemes review on a rolling basis. Applications are assessed as they arrive, offers go out through the season, and the advertised deadline is a backstop rather than a decision point. Plenty of firms say this openly on their own pages: we encourage early application as roles may close once filled.

Read that literally, because it is literal. Applying in week one means your application is read against an empty pipeline and a full set of places. Applying in week twelve means it is read against a shortlist that already exists and a handful of remaining spots. It is the same application. The bar it has to clear is not the same bar.

A good application in October loses to an average one in September more often than anybody wants to admit.

— what the season actually looks like

Summer internships, which are the bulk of the market, are heavily front loaded. Of the 473 UK summer internships in our data:

September is the single biggest month of the year by a distance: more than a quarter of the entire season opens in those four weeks. If you spend September finishing your CV, you are not late by a little. You have watched the largest wave of the year go past while you edited a bullet point.

— consulting goes earliest

The sectors do not move together. Consulting is the most aggressive: across the 41 UK consulting programmes we track, 44% were open by the end of September and two thirds by the end of October. It is a small sample, but the direction is consistent year to year, and it matches how those firms run their assessment centres.

Finance and technology sit close to each other, with roughly a third open by the end of September and about half by the end of October. Technology then has a noticeable second wave in January, which is worth knowing if that is your market. Finance thins out after Christmas and does not really come back.

— spring weeks are a different clock

This is the part that catches people out, and it catches them out in both directions. Spring weeks do not follow the internship curve at all. Of the 56 UK spring weeks in the dataset, only 18% had opened by the end of September, and 43% opened in the new year.

So if you are a first year in October watching internship deadlines fly past and feeling behind, you are not. Your market has barely started. October and January are your months, and the run through to March is real rather than leftovers. The mirror image is also true: spring weeks are the one part of this calendar where a January start is not a disadvantage.

⚠️ The January trap
Just under a third of summer internships open in January or later, so January is a real market rather than a dead one. The problem is who else is there. January is where everybody who missed September arrives at once, applying to a smaller pool of remaining places with a shortlist already forming ahead of them. It is the second half of the market, and it is more crowded than the first.

— what to do in August

August is the only quiet month you get. Everything you do now is work you will not have to do while deadlines are landing:

— apply weekly, not in bursts

The common pattern is nothing for a month, then eleven applications in one weekend, then nothing again. That produces eleven mediocre applications and a burnt out fortnight.

Three a week, every week, from the start of September beats it comfortably. You are inside the rolling window continuously rather than in bursts, the quality holds up because you are not doing it at 2am, and by the end of October you have submitted around thirty applications into the busiest and least competitive part of the season.

— the mistake underneath all of this

Almost everyone who applies late was waiting for something. The CV was not finished. They wanted one more society position on it. They were going to start properly after freshers.

The application you send in September with a good CV beats the application you send in December with a perfect one, because in December you are competing for what is left. Get the page finished, put three slots in your calendar each week, and start when the market starts rather than when you feel ready.