The most expensive accountancy relationship in Britain is the one where you only speak to your accountant once a year. By the time the call happens, the transactions that would have created the tax saving have already gone through, the deadlines for the relevant elections have passed, and the only thing the accountant can do is report the outcome accurately. That is not advice — that is documentation.
Genuine tax savings come from decisions made before the transaction. Here is what proactive tax planning actually looks like — and why it tends to pay for itself many times over.
The 80/20 of tax outcomes
Once a tax year ends, roughly 80% of the tax outcome is fixed. The salary you took, the dividends you declared, the equipment you bought, the property you sold, the pension contributions you made — all already happened. The remaining 20% is execution: optimal use of allowances, sensible filing, avoiding penalties.
Reactive accountants — the once-a-year crowd — only ever touch the 20%. Proactive accountants spend most of their time on the 80% before it crystallises.
The proactive planning cycle
The cadence we run with most owner-managed business clients:
Quarter 1: Forecast and budget
- Confirmed personal tax position from previous year
- Projected profits for current year
- Projected dividend and salary requirements
- CAPEX plans for the year
- Pension contribution planning across personal and corporate
Quarter 2: Mid-year check
- Actual vs forecast variance — does the plan still hold?
- Unexpected windfalls or losses — how do they change extraction strategy?
- Capital gains opportunities — disposals to plan around annual exempt amount
Quarter 3: Pre-year-end planning
- Confirmed actions for tax-year-end (5 April for personal, accounting reference date for corporate)
- Pension top-ups, ISA contributions, capital purchases timed
- Loss utilisation and group relief positioning
- Dividend declarations finalised before personal year-end
Quarter 4: Execute and document
- Final actions taken
- Documentation retained for HMRC if queried
- Returns prepared on a clean dataset
What a single proactive year actually saves
Real examples from the last 12 months (anonymised):
- Software consultancy, £680k turnover. Moving from FRS to Standard VAT mid-year saved £4,200. Restructuring extraction split between two spouse shareholders saved a further £6,800. Total annual saving: £11,000.
- E-commerce business, £1.2m turnover. R&D tax relief claim correctly identified and substantiated: £38,000 cash credit. Would not have been claimed without proactive review.
- Property investor, two rental properties. Pre-disposal planning on a Buy-to-Let restructure deferred CGT of £42,000 via incorporation relief (with full advice on the trade-offs).
- Contractor inside IR35. Pension contribution strategy reduced personal tax bill by £8,400 in a year while building retirement provision.
In each case, the planning fee was a small fraction of the saving — and the planning had to happen before the transactions, not after.
The traps reactive accountants miss
- Election deadlines. Several reliefs require election within a defined window (e.g. EIS deferral relief, certain incorporation reliefs, holdover relief). Miss the window, lose the relief.
- Loss carry-back. Trading losses can be carried back, but only if certain claims are made in time and against the right years.
- R&D pre-notification. For accounting periods starting on or after 1 April 2023, first-time claimants must pre-notify HMRC within 6 months of the period end. Many miss this and lose otherwise valid claims.
- VAT scheme changes. Switching schemes has anti-forestalling rules — done wrong, it triggers a clawback.
- Director loan timing. S455 tax on overdrawn director's loans is 33.75% — but planning around the year-end position can avoid the charge.
What this costs and what it delivers
Genuine proactive tax planning for an owner-managed business with combined personal and corporate complexity typically costs £2,500 – £6,000 a year as part of a wider engagement. The recovery on that fee usually shows up in year one and compounds in subsequent years as the structures put in place keep delivering.
For self-employed contractors and freelancers the maths is the same at smaller scale — see our self assessment service for the personal-tax side.
How to switch
If you currently only speak to your accountant once a year, switching does not mean burning the relationship. Talk to them about whether proactive engagement is something they offer; if it is, brilliant. If it is not, we are happy to run a proactive layer alongside an existing relationship, or take the whole engagement.
Our tax planning engagements are structured around the four-quarter cycle above with named senior reviewers and a clear deliverables calendar. Book a 30-minute initial conversation and we will tell you within the call whether proactive planning would save you money — and roughly how much.