Accountancy demand is shaped by a fixed compliance calendar, and self assessment dominates it. Search interest starts climbing in October around the registration deadline, builds through the paper return date at the end of that month, and peaks in the final two weeks of January. Every firm in the country knows this, which is why the click prices in late January are the highest of the year — you are bidding against the entire profession for the same panicking sole trader. The awkward truth is that the enquiries arriving in that fortnight are the least valuable clients you will meet all year. They are late, disorganised, price-driven, usually one-off, and they land in the exact week your team has no capacity to onboard anyone. Meanwhile the clients worth having, the limited company with payroll and VAT that has decided to switch, are found in the quiet months when nobody is bidding. The right budget shape is close to the inverse of what most firms run.
The economics compound that. Accountancy is recurring-revenue work with unusually low churn — clients stay for years, often for the life of the business, and the switching friction that makes them hard to win is the same friction that makes them hard to lose. So a client's value is a monthly fee multiplied by a retention measured in years, and an acquisition cost that looks indefensible against the first invoice can be entirely sensible against the relationship. Most firms never make that calculation and judge campaigns on cost per lead within the month, which systematically kills the campaigns that win better clients slowly. There is a second dimension: the gap between a sole trader on a small monthly fee and a limited company with payroll, VAT and management accounts is close to an order of magnitude in value, and both respond to the same advertisement. That makes qualification in the funnel — what the form asks, what the landing page filters for — worth more than any increase in lead volume.
Making Tax Digital is the demand event the profession is currently sitting on. From April 2026, sole traders and landlords with qualifying income above fifty thousand pounds must keep digital records and make quarterly submissions; the threshold drops to thirty thousand from April 2027 and to twenty thousand from April 2028. That pulls a very large number of people who have always filed their own return into needing software, a process and, for many of them, an accountant. The searches attached to it are practical and answerable — whether it applies to them, what qualifying income means, what the quarterly updates involve, what happens if they have both self-employment and rental income — and the firms publishing clear answers now are the ones being found. That plays into the wider point about niching: 'accountant for landlords' or 'accountant for contractors' or 'accountant for e-commerce sellers' beats 'accountant in London' every time, because the searcher is self-selecting and the generic term is a wall of identical firms. It also helps that 'accountant' is not a protected title in the UK, so stating your qualification and practising certificate clearly is a real differentiator that most firms leave in the footer.