Tax planning in 2025: from year-end scramble to strategic advantage

01 Dec 2025Team PremierTax#Tax#Planning
Tax planning in 2025: from year-end scramble to strategic advantage

Tax Planning in 2025: From Year-End Scramble to Strategic Advantage

As we approach the end of 2025, tax planning has evolved from a last-minute chore into a year-round strategic necessity for UK small businesses, contractors, startups, and e-commerce entrepreneurs. The fiscal landscape is shifting: key tax thresholds remain frozen and rates are creeping up, effectively dragging more income into higher tax bands[1]. For example, income tax and National Insurance thresholds are locked until 2028 (now extended to 2031), meaning inflation alone can push many into paying more[2]. Meanwhile, dividend tax rates will climb by 2 percentage points from April 2026[1] – a heads-up for owner-directors who rely on dividends. In short, doing nothing could cost you more each year. From reactive to proactive: The old habit of addressing tax matters only at year-end is a liability in this new environment. In our view, savvy business owners now treat tax planning as “an ongoing strategy” woven into every decision, not a one-off April panic[3]. HMRC’s push towards real-time digital reporting (more on that later) means there’s less room for last-minute adjustments, and more value in planning ahead to “stay one step ahead of rules that continue to evolve”[4]. Key strategies for late 2025: To keep your tax bill trim (legally) and avoid surprises, consider these moves: • Optimize salary vs. dividends (for company owners): With the dividend allowance now just £500 halved from £1,000 in 2024, the classic strategy of a small salary and dividends requires fine-tuning. Many directors find that paying themselves just up to the tax-free personal allowance (£12,570) as salary, and taking the rest as dividends, hits a sweet spot[6][7]. This combo minimizes Income Tax and National Insurance, given current rates, and maximizes take-home pay within the law. (Example: A £50k withdrawal all as salary nets ~£33.9k after tax, whereas the optimal mix nets ~£49.2k – a difference of over £15k[8][7]!*) • Leverage full expensing and allowances: The UK government has incentivized business investment by allowing 100% first-year relief on most capital expenditures. Through at least March 2026, companies can deduct the entire cost of qualifying plant and machinery immediately so-called “full expensing”, effectively an unlimited Annual Investment Allowance. This means if you need new equipment or technology, investing before your year-end can wipe out taxable profits and slash your corporation tax bill[10][11]. Even smaller purchases count – the Annual Investment Allowance remains a generous £1 million per year[12], covering everything from vans and computers to office fittings. Plan asset purchases wisely: an expense on 31 March can yield an immediate tax relief, whereas waiting until 1 April could defer that benefit by a whole year[10][11]. • Contribute to pensions (double win): Pension contributions are a powerful, double-relief tool that too many business owners overlook. By channeling profits into your pension, you get corporation tax relief on the contribution and you personally avoid income tax/NICs on that money[13][14]. For instance, a £10,000 company contribution to your pension saves the company £1,900 in tax (at 19% corporation tax) and boosts your retirement fund by the full £10k – with no personal tax hit[14]. It’s far more efficient than taking that £10k as a dividend and then contributing, which would incur dividend taxes. If you’ve had a strong year, consider a “year-end profit sweep” into your pension instead of extra dividends – it can keep you out of higher tax brackets while securing your future[15]. (Remember, the annual pension allowance is £60k, and the lifetime allowance was abolished in 2024, removing that cap[16][17].) • Use reliefs and losses: Ensure you’re making use of all available reliefs. R&D tax credits, for example, can refund a portion of your innovation spend (valuable for startups). Loss carry-backs or carry-forwards can provide cash flow through tax refunds or future tax reduction if you had a tough year followed by a better one. And landlords or sole traders in 2025 should recall the basis period reform: starting 2024/25, profits are taxed on the tax-year basis, which means any overlap relief from earlier years should be claimed to avoid double taxation. Good accounting advice is key here. Opinion: In 2025, effective tax planning isn’t about dodgy schemes or playing hide-and-seek with HMRC – it’s about being deliberate and informed. With higher corporation tax rates (19% for small profits up to £50k, 25% above £250k, plus a 26.5% marginal band in between) and frozen allowances biting into real incomes, every relief and incentive matters. Our stance is that small business owners must act like CFOs: review your tax position quarterly, not just annually. Did your profits jump this quarter? Maybe bring forward that equipment purchase or pension top-up. Are you approaching the VAT threshold or higher rate band? Plan for it now, not after you’ve tripped it. This proactive mindset can literally save your business thousands and provide stability amid an uncertain tax policy climate. Bottom line – tax is now a year-round game. By staying informed and strategic, you transform tax planning from a necessary evil into a source of competitive advantage. After all, “tax efficiency isn’t accidental; it requires strategy, timing, and knowledge of the rules”[18] – and that’s something every small business should prioritize heading into 2026.