The marketing ideas for small business owners with no money that hold up best are the plain ones: ask every happy customer for a review, keep a complete Google Business Profile and make it easy for people to recommend you. When you need skilled help you can't pay for, like copywriting or photos, swap your own work for it.
We've gone through the most recent figures we could find on what brings customers to small firms. Some are solid. Others are old, and a couple come from companies with something to sell, so here's what each one says and how far we'd trust it.
What's the cheapest marketing idea for a small business?
Asking for reviews. BrightLocal's Local Consumer Review Survey, published in February 2026, found that 74% of consumers look for reviews written in the last three months and 47% won't use a business with fewer than 20 reviews.1 People expect higher star ratings now, too: 31% will only use a business rated 4.5 stars or higher, against 17% the year before.
So a pile of glowing reviews from 2023 isn't doing much work for a small trader. A steady trickle beats a big total. If you finish five jobs a week, asking every one of those customers costs nothing and takes about a minute each.
The survey also found that 78% of people had been asked for a review in the past year, and 65% wrote one after being asked. We wouldn't lean on that figure too hard. Elsewhere in the same report BrightLocal gives 83%, and the panel was 1,002 adults in the US, not the UK. Both versions point the same way, though. Most people leave a review because somebody asked.
Replies count as well. Four in five said they're more likely to use a business that responds to all its reviews, but half are put off by templated replies. So write a line about the actual job. "Thanks Sue, glad the new boiler's keeping the kitchen warm" does more than "Thank you for your valuable feedback".
Is a Google Business Profile worth the time?
Google says customers are 2.7 times more likely to consider a business reputable if they find a complete Business Profile on Search and Maps, and 70% more likely to visit.2 It doesn't say how it measured that, and Google has every reason to want you on its platform. We'd read those numbers as a direction rather than proof.
It's still the first free listing we'd set up, because it's where many customers will read your reviews. Not the only place, mind: BrightLocal found Google's share of review site use fell from 83% in 2025 to 71% in 2026.1 You don't need a shop either. If you go to your customers rather than them coming to you, as a plumber or a mobile dog groomer does, Google's help pages tell you to remove your address from the profile and show a service area instead.3
Complete means filling in the dull bits: opening hours, the right category, your service area, photos of real jobs and a few lines on what you do and don't take on. Allow a couple of hours to set it up. After that, about 15 minutes a week to add a photo and answer new reviews.
Does word of mouth still work for small businesses?
When Paddle, an app for tradespeople, surveyed more than 1,500 consumers, 46% said they only contact tradespeople recommended by someone they trust.4 A separate SmallBusiness.co.uk poll of more than 200 owners found 36% rated word of mouth as the thing that works best for their business, ahead of advertising on 31% and social media on just 8%.5
Both come with a catch. The Paddle research is from 2019, the SmallBusiness.co.uk poll carries no date, and Paddle sells to tradespeople, so it has an interest in the answer. We couldn't find a recent, independent UK study that measures this properly. Where the two agree is that recommendations are still the main way in for small firms, and we don't see much reason to doubt that.
But referrals rarely happen by accident. Tell finished customers you've got room for two more jobs this month. Leave cards with the café, the estate agent or the wedding venue down the road and offer to send work their way in return. A florist and a wedding photographer who recommend each other are each getting a sales team for nothing.
AI assistants have started recommending local businesses
Most free marketing advice was written before this happened. In the 2026 BrightLocal survey, 45% of consumers said they'd used ChatGPT or another AI tool for local business recommendations, up from 6% a year earlier.1 And 82% said they read AI-written summaries of reviews.
That's a US panel again, and a jump that size in one year deserves some caution. What to do about it is the same as everything above, though. These tools build their answers from what's published about a business. A complete profile, recent reviews that mention specific jobs and a plain web page saying what you do and where are the best things you can give them. We haven't seen a separate trick that works, and we'd be wary of anyone selling one.
How do you get marketing help you can't afford?
Some of this needs skills you may not have. The 2026 ProCopywriters survey of 573 UK commercial writers put the median freelance day rate at £440.6 That's a lot for a sole trader to spend on rewriting a website, and good photography or design doesn't come cheap either.
This is where swapping comes in. Say a copywriter needs a bathroom retiled and a tiler needs a website that brings in enquiries. A day of tiling for a day of writing can be a fair trade, as long as both sides agree the scope, meaning what a day actually covers, before anyone starts: how many pages, how many rounds of changes, which walls. Put it in writing, even if it's just an email. The swap is far more likely to stay friendly.
Swaps aren't a way round tax. A barter is generally treated like a cash sale, so both sides record what they received as income at its market value, meaning roughly what a paying customer would be charged. If either of you is registered for VAT, VAT is due as though money had changed hands.7 HMRC's own VAT manual calls the payment in a barter "non-monetary consideration" and admits that valuing it gets awkward when each side reckons their work is worth something different.8 If you're newly self-employed, you also have to register for Self Assessment, the yearly tax return, once you earn more than £1,000 in a tax year.9 We'd note what you'd normally charge for each swap and talk to your accountant before your first one.
On Exchange of Services you can post a request for the help you need and agree the details in a message thread with whoever replies, or browse the services other businesses are offering.
A five-hours-a-week plan for your first 90 days
If we were starting with no budget and about five hours a week, this is the order we'd do it in:
- Weeks 1 and 2: set up or finish your Google Business Profile. Two hours, then 15 minutes a week from then on.
- Weeks 1 to 12: ask every customer for a review on the day you finish, and send them the direct link. Reply to each one within a week.
- Weeks 3 and 4: list five local businesses with the same customers as you and offer to recommend each other. An hour or two of conversations.
- Weeks 5 to 8: if your website, photos or leaflet are letting you down, find someone to swap with. Allow a few hours to agree the scope.
- Weeks 9 to 12: start a short email to past customers, one useful message a month. Check the free limits first, because Mailchimp cut its free plan to 250 contacts and 500 emails a month from 17 February 2026.10
When should you start paying for ads? Once you know two numbers: what a typical customer is worth to you over a year, and how many enquiries turn into paid work. Until then, any spend is a guess. Our rule of thumb is to try one small, capped amount on one channel for a month once the free basics are running, and stop if it doesn't bring in enough work to cover itself.
When your skills are worth more than your budget
Most small businesses that are short of marketing money aren't short of skills. Swapping a day of what you do for a day of what someone else does can get you the website, photos or words a tight budget won't stretch to. Join Exchange of Services free and list what you offer.
Frequently asked questions
How do you market a small business with no money?
Start with the things that only cost time: a complete Google Business Profile, a review request to every customer, and swapping recommendations with local businesses that share your customers. BrightLocal's 2026 survey found 74% of consumers look for reviews from the last three months, so a steady flow of reviews counts for more than a big total.
Is £1,000 enough to start a business?
For many UK service businesses, yes, because you can start as a sole trader without much outlay. GOV.UK says you can start trading before you register, and you must register for Self Assessment once you earn more than £1,000 in a tax year. Spend first on what the work needs, and think about swapping skills for things like a website.
How to earn business without investment?
Use the skills and contacts you've already got. Ask past customers for referrals, keep your Google Business Profile up to date, and offer your service in exchange for help you need, such as a copywriter's day, which had a median rate of £440 in the 2026 ProCopywriters survey. Swaps are taxable like cash sales, so record them.
Do you pay tax on a skill swap in the UK?
Generally, yes. A barter is treated much like a cash sale, so each side records the market value of what they received as income, and VAT applies if either business is VAT registered. HMRC's VAT manual treats barter as non-monetary consideration. Talk to your accountant about your own situation.
Is Mailchimp still free in 2026?
It still has a free plan, but from 17 February 2026 it was cut to 250 contacts, 500 emails a month and 250 a day, according to Sage. Accounts over the contact limit have sending paused unless they upgrade. Check the current limits before you build a customer list on any free tool.
Sources
- BrightLocal: Local Consumer Review Survey 2026 brightlocal.com
- Google Business Profile Help: Tips to improve your local ranking on Google support.google.com
- Google Business Profile Help: Manage your service area for your Business Profile support.google.com
- PHPI: 46% of homeowners would only use a tradesperson recommended by friends or family phpionline.co.uk
- SmallBusiness.co.uk: Word of mouth most powerful marketing tool smallbusiness.co.uk
- ProCopywriters: Copywriter Survey 2026 procopywriters.co.uk
- Startups.co.uk: How is tax applied to bartering? startups.co.uk
- HMRC VAT Valuation Manual: VATVAL05900 Barter transactions, valuation when each supply has a different value gov.uk
- GOV.UK: Set up as a sole trader gov.uk
- Sage Community Hub: Impact of Mailchimp free plan changes on Sage CRM customers communityhub.sage.com
