What’s On in June 2025: Important Dates for UK Businesses, Brands and Marketers
As a UK business owner, staying on top of key dates is crucial to ensure your operations run smoothly and you meet all legal obligations. June 2025 brings important deadlines for tax filings, compliance, and reporting. Beyond the paperwork, it also offers exciting opportunities for marketing, networking, and professional development through various trade events and industry conferences. In this post, we’ll walk you through the essential dates you need to know this month and how to make the most of the opportunities available to help your business thrive.
Marketing and sales dates in June 2025:
As summer arrives in full swing, June is a golden opportunity for UK businesses to energise their marketing and sales efforts. The longer days, cultural milestones, and seasonal shifts provide the perfect backdrop for campaigns that tap into consumer emotions, outdoor lifestyles, and timely causes.
Whether you’re promoting eco-conscious products, Father’s Day specials, or capitalising on major sporting events like the Euros or Wimbledon, aligning your messaging with national and international awareness days can help your business stay relevant and engaging.
Key Marketing and Sales Dates – June 2025 (UK)
Use these dates as hooks for your content, email campaigns, promotions, and social media planning:
| Date | Event | Use Case / Notes | Link (if available) |
| 1 June | Global Day of Parents | Great for family-oriented brands and healthy lifestyle campaigns. | UN Page |
| 1 June | International Children’s Day | Perfect for promoting children’s products, educational tools, or parenting content. Also good for CSR campaigns focused on child welfare. | UNICEF |
| 3 June | World Bicycle Day | Promote fitness gear, cycling products, green transport, or sustainability. | UN Page |
| 5 June | World Environment Day | Highlight sustainability efforts, launch green initiatives, or run eco-friendly campaigns. | UN Page |
| 7 June | World Food Safety Day | Great for food producers, hospitality, and packaging to show commitment to health and safety. | WHO Page |
| 8 June | World Oceans Day | Use for environmental campaigns, beach cleanups, or marine conservation messages. | UN Page |
| 9–16 June | Men’s Health Week (UK) | Share health tips, promote men’s wellness products, or raise awareness. | Men’s Health Forum |
| 14 June | World Blood Donor Day | Partner with blood donation orgs or run CSR/giving-back initiatives. | WHO Page |
| 14 June | Trooping the Colour (King’s Official Birthday) | Ideal for UK brands or heritage themes. Patriotic campaign angle. | British Army |
| 15 June | Father’s Day (UK) | Gift campaigns, experiences, or content celebrating dads and father figures. | – |
| 17–23 June | National Picnic Week | Ideal for food, drink, and outdoor leisure campaigns. | Picnic Week |
| 19 June | Clean Air Day | Raise awareness about pollution, ideal for green and wellness brands. | Clean Air Hub |
| 21 June | Summer Solstice | Run late-night promotions, flash sales, or “longest day” themed campaigns. | – |
| 21 June | International Yoga Day | Tap into wellness, fitness, and mindfulness messaging. | UN Page |
| 21 June | World Music Day | Great for creative brands, music retailers, events, or collaborations. | Fête de la Musique |
| 22 June | Windrush Day | Honour UK’s diverse heritage. Share educational or community content. | Gov.uk |
| 23 June | UN Public Service Day | Highlight work in or with the public sector. Good for B2B content or CSR. | UN Page |
| 27 June | National Sunglasses Day | Campaigns for fashion, travel, or summer holidays. | Vision Council (US site) |
| 30 June | Wimbledon Championships Begin | Leverage British summer themes, tennis content, or sports tie-ins. | Wimbledon |
Accounting dates in June 2025:
- 1st June – Corporation Tax payment: 31 August 2024 year ends
- 1st June – Advisory fuel rates for company car drivers: new rates published
- 7th June – VAT return submission and payment (online): month-end or quarter 30 April 2025
- 8th June – PAYE, NIC and CIS payment (postal): month-end 5 June 2025
- 19th June – CIS return: payments made to subcontractors in the month to 5 June 2025
- 22nd June – PAYE, NIC and CIS payment (electronic): month-end 5 June 2025
- 30th June – Corporation Tax returns: 30 June 2024 year ends
- 30th June – VAT partial exemption: annual adjustment due this quarter for 31 March stagger
- 30th June – VAT annual accounting: 30 April stagger VAT return and balancing payment
Visit Accounting Wise for a full breakdown of important Accounting and Tax dates in June 2025
Tips for June 2025 Business Planning and Strategy
June isn’t just about sunshine and seasonal campaigns, it’s also a strategic moment in the business calendar. As the midpoint of the year, it’s the perfect time to assess progress, sharpen your focus, and optimise your resources ahead of Q3.
Here are three key areas to prioritise in your June business planning:
1. Mid-Year Review: Reassess and Realign
June marks the halfway point of the calendar year, making it a critical time to evaluate your business performance so far.
- Review your key performance indicators (KPIs) are you on track to meet your targets?
- Assess your marketing ROI, customer acquisition costs, and campaign performance.
- Revisit your business goals for 2025 and adjust your strategy where needed to stay aligned for Q3 and Q4.
Tip: Create a simple mid-year performance report to share with your team or investors. It can help drive alignment and identify hidden opportunities.
2. Tax Preparation and Financial Planning
Although the new financial year started in April, many businesses overlook the opportunity to get ahead in June.
- Start identifying tax-deductible expenses from spring campaigns or capital investments.
- Forecast your cash flow for summer, particularly if you expect seasonal highs or lows.
- Speak with your accountant to plan ahead for VAT returns, Corporation Tax, or any upcoming payment on account deadlines.
Need expert support? Visit our sister company Accounting Wise for tax planning and bookkeeping solutions tailored to UK businesses.
3. Budget Reallocation: Focus on What Works
If your actual spend is diverging from your original budget, now’s the time to rebalance.
- Reallocate funds to marketing channels or campaigns that are delivering solid results.
- If you anticipate higher footfall or demand over summer, consider putting extra budget into seasonal hires, extended opening hours, or limited-time offers.
- Cut back or pause underperforming initiatives and reinvest in activities with proven ROI.
Use budget tracking tools like Xero, QuickBooks, or FreeAgent to stay on top of your financials and adjust in real-time.
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