Why Part-Time Workers Keep Losing Holiday Days to Bank Holidays

Hi Angela. We are unpacking "Why Part-Time Workers Keep Losing Holiday Days to Bank Holidays" today and tying it back to the wider Cost Saver ecosystem, including tools like UK Annual Leave & Holiday Entitlement Checker and UK Annual Leave & Holiday Entitlement Checker, so you can turn insights into action quickly.

Exactly. Treat this chat as a smart estimate only, not as professional financial guidance. Always check important details with official sources or a qualified expert before making any big decisions.

Hey Angela. Yeah, this one's — it's one of those topics where once you see the problem, you can't unsee it, you know? Most part-time workers in the UK have probably been short-changed on holiday at some point, and they just... don't know.

It is, but it's — I mean, it's accurate. Not through malice, usually. It's more that the maths around bank holidays gets genuinely confusing when your working pattern doesn't line up with a standard Monday-to-Friday week. And the thing is, most bank holidays fall on Mondays, right?

So if an employer has this blanket policy of 'everyone gets bank holidays off,' that sounds fair on the surface, but it quietly disadvantages anyone who doesn't actually work that day. Like, if you work Tuesday to Thursday, those Monday bank holidays are... kind of irrelevant to you. You weren't going to be in anyway.

Exactly. And we've seen it cost people the equivalent of, um, two to four days of paid leave a year. Which is anywhere from £150 to £400 depending on their hourly rate. Just gone. Because nobody accounted for the fact that those bank holidays didn't fall on their working days.

No, it's really not. And it compounds, right? If it's been wrong for two or three years, you're talking about — well, a lot of money and a lot of missed time off.

So this is — this is where people get tripped up. There's no separate legal right to bank holidays off in the UK. Like, none. The core legal document is the Working Time Regulations 1998. That gives everyone the right to 5.6 weeks of paid annual leave per year, which works out to 28 days for someone working five days a week. But — and this is the crucial bit — that 28-day figure already includes bank holidays.

Nope. Whether you get Christmas Day off or the August bank holiday as paid leave depends entirely on your contract. Not on some universal statutory guarantee. It's just... a thing your employer decides. Does that make sense?

Totally. And that assumption is exactly what causes all the problems downstream for part-timers.

—yeah, a bit scary. I get it. But honestly? Most payroll errors like this are genuine mistakes. It's not usually someone trying to short you on purpose. And raising it — a polite, evidence-based question — it won't affect your pay negatively, it won't put your job at risk. Most employers would genuinely rather fix an honest error quietly than deal with a formal grievance later.

Yeah. And doing it in writing creates a useful record too, if it ever needs to go further. But usually it doesn't. Usually it's just a 'oh, you're right, we'll fix that' kind of conversation.

The biggest — the single biggest mistake — is treating bank holidays as something bolted on top of a worker's core holiday allowance, rather than being carved out of it. For a full-timer working Monday to Friday, the maths sort of works out anyway. But for a part-timer working, say, three days a week? It creates a serious imbalance.

Yeah, so there's Sarah. Works three days a week in Leeds — Wednesday, Thursday, Friday. She realised that almost none of the year's bank holidays fell on her working days. Her employer had been telling everyone, 'you get bank holidays off, plus your pro-rata holiday.' Which sounds generous, right?

But it meant Sarah was effectively getting several fewer days of paid leave than a colleague on the same hourly rate who happened to work Mondays. Once she queried it and asked payroll to recalculate in hours rather than days, she was owed an extra three days of paid leave. For that year alone. Worth about £270.

The correct approach — and this is what ACAS recommends, what gov.uk guidance reflects — is to calculate the full 5.6 weeks of entitlement in hours or days based on the person's actual working pattern. And then let the worker choose when to take that leave, including on bank holidays if they want. It's like, pro-rata everything, including bank holidays. That's the only fair way to do it.

So this one happens even before bank holidays enter the picture. It's just... getting the basic pro-rata sum wrong in the first place. A surprising number of employers mess this up. The standard method is 5.6 weeks multiplied by the number of days you work per week. So three days a week? 5.6 times 3 is 16.8 days. Which usually gets rounded up to 17, because rounding down would breach the statutory minimum.

Ah, yeah. So the 12.07% accrual method was designed for irregular hours workers, and it's been significantly reformed. But some businesses still slap it on everyone — all part-time staff, regardless of whether their hours are actually irregular or just, you know, reduced but predictable. And that can shortchange people, especially those with consistent schedules.

Yeah. And honestly, if your hours vary week to week, it's more accurate to track entitlement in hours rather than days. You work out your average weekly hours over a representative period — often 52 weeks under current rules — multiply by 5.6, and that's your annual entitlement in hours. A day-based calculation can quietly disadvantage someone who works, like, long shifts on fewer days.

Yeah, this is a tricky one. So some workplaces just shut entirely on bank holidays — offices, schools, small retail. Employers can require staff to take those days as annual leave. That's fine, legally. But only if the worker actually has enough leave left to cover it. The problem starts when a part-timer who doesn't normally work Mondays is told, 'you need to use a holiday day for this bank holiday closure.'

Exactly! They're being forced to burn leave for a day they were never scheduled to work. Meanwhile their full-time colleague loses nothing extra because the closure falls on a day they'd have worked regardless. It's — look, closure policies are a legitimate business decision, I'm not saying they're inherently wrong. But any deduction from a part-timer's leave balance has to be proportionate to their normal working pattern.