Have I messed up background check?

[Stupidwomanisme]

I've been offered a job working for a bank and I'm currently going through a background check. I was feeling confident everything would go through smoothly but I've just realised I have a potentially big problem with my CV.

It says from 2017-2020 I worked in X job at Y company. But in actual fact from 2017-2018 I worked in W job at Y company. I was then prompted in 2018 to X.

Is that going to show up in the checks? Should I admit my mistake now? The checks have been ongoing for the last 4 weeks and I only thought about it tonight because I was having to dig up old payslips.

I'm really concerned this will cost me the job.

If you were with employer Y for the period you stated it seems unlikely the discrepancy will be flagged.

Internal promotions aren’t likely to cause an issue. Unless the reference ask for specific dates of certain jobs

I feel like it might be flagged because of how thorough the checks are. If it is flagged do you think they'd accept the truth, (it was amalgamated to clear up my CV because I was only in the first job for a short amount of time, and I was hired on the basis of moving into job 2 once the backlog of new cases had cleared anyway). I've been made redundant and I really need this job.

They’ll only look at the dates you were employed with the different companies not the roles within the companies

I used to work for a background checking company so obtaining references and the like, in this instance if the employer advised it as incorrect we’d call and ask you to confirm, we would then just highlight it on the report with the information you provided, it was a regular occurrence as in people got dates and job titles mixed up. I guess it depends how strict the company are, mostly companies will just want to know you were employed and therefore your time was accounted for, unless of course you did a completely different job. When we obtained references sometimes they would only confirm dates and not even a job title. When candidates found themselves in this position we would advise them that they alert the potential employer to explain. You could give them a call and advise them of your mistake, ultimately only they will advise how important it is to them, everything else is just speculation

In all likelihood it will be fine. That said, it does rather look like you were trying to claim the role you were promoted into for the entire period, which could look deliberate if it was flagged...