Is social media marketing free? The real cost of 'free'

Key takeaways

Social media marketing is free to join and never free to do. The account costs nothing. The posts, replies, photos, tools and advert spend all cost time or money, and for most small firms the yearly total runs to thousands of pounds.

• £16.27 an hour: staff time at the April 2026 National Living Wage.
• About £5,076 a year for three two-hour posts a week.
• £300–£500 a month is the practical floor for paid social.
• Tools, photography and training add to the total.

What is free about social media?

Opening a business profile, posting, replying and reading basic statistics are free on the main platforms. That is a real advantage over traditional advertising, where nothing appears until you have paid. It is also why the true cost is so easy to overlook.

• Social media marketing vs traditional advertising: what works better for SMEs?
• Pros and cons of social media marketing for small businesses

What does the time cost?

Time is the main cost. At the April 2026 National Living Wage of £12.71, an hour of staff time costs about £16.27 once employer National Insurance, pension and paid holiday are included. A post that takes two hours costs about £33. Three a week is 312 hours a year, or roughly £5,076.

• DIY social media vs agency: what each really costs
• The true cost of an employee in the UK

What other costs appear?

Four other costs appear once social media is taken seriously.

• Content: photography, video and design.
• Tools: scheduling, editing and reporting software.
• Advert spend: to reach people beyond your followers.
• Training: keeping up as formats and rules change.

• Social media scheduling tools for UK small businesses
• Social media photography on a budget

Why is paid reach usually needed?

Paid reach is usually needed because unpaid posts are shown mainly to a portion of your existing followers. To reach new households in your area, some advertising spend is the dependable route. A practical floor is £300–£500 a month, which is still below the entry cost of most traditional media.

• Organic vs paid: how it changes your platform choice
• Paid social budgets for UK small businesses

What does the owner's time really cost?

If the owner does the posting, the true cost is what that hour would have earned elsewhere. An owner whose time is worth £40 an hour spends £160 on a four-hour week of social media. That is the opportunity cost, and it is why handing the work over can be cheaper than it looks.

• The opportunity cost of doing everything in-house
• DIY marketing for a small business: the hidden costs

How does that compare with paying someone?

Most UK SMEs that use an agency pay £950–£2,500 a month for managed social media. Set that against in-house hours at their real cost, plus tools and the cost of weeks when nothing gets posted. For some firms doing it themselves is cheaper. For many it only appears to be.

• Social media agency pricing in the UK
• In-house versus agency social media for UK businesses

Is it still cheaper than traditional advertising?

Usually, yes, and it is more flexible. A leaflet drop to 5,000 homes costs roughly £300 to £750, and a local radio test several thousand pounds. Social media costs can be raised, lowered or paused weekly. The fair comparison is cost per enquiry in each.

• The hidden costs of traditional advertising
• Cost per lead by channel: comparing social media and offline

When is 'free' social media a false economy?

It is a false economy when posting is irregular, when nobody replies to messages, or when the owner's best hours go into it. A neglected profile can put buyers off. If you cannot keep it up, a smaller presence done properly beats a large one done badly.

• What inconsistent social media really costs a business

What does this look like in practice?

A pattern we see with owner-run accounts: social media is described as costing nothing, yet it takes most of a Sunday evening every week. Putting an hourly value on that time often changes the conversation from 'can we afford help?' to 'can we afford not to have it?'

• See client work
• Social Media Marketing for UK businesses

Next step

Log the hours you and your team spend on social media for two weeks. Multiply by the real hourly cost and by 26 to get a yearly figure.