If that sounds familiar, you’re certainly not alone. It’s incredibly common for people to wait until the final weeks of the tax year before reviewing their finances or using valuable allowances. The problem is that last-minute decisions can sometimes lead to rushed choices, missed opportunities or less effective planning.
The start of a new tax year offers a natural reset – get motivated!
With spring arriving and the darker winter months behind us, it can be the perfect time to take a fresh look at your finances and start the fiscal year with a clear plan. Beginning early means you have more time to make thoughtful decisions and take full advantage of the tax-efficient opportunities available.
Even small steps taken now can make a meaningful difference over time, helping you build better financial habits and, potentially, a larger investment pot for the future.
Use your ISA allowance
Individual Savings Accounts (ISAs) remain one of the most tax-efficient ways to save and invest. Any growth within an ISA is free from Capital Gains Tax, Dividend Tax and Income Tax, and you won’t pay tax when you withdraw the money either. Stocks and Shares ISAs and Cash ISAs are available, with the former offering more longer-term growth potential.
In the 2026/27 tax year you can invest up to £20,000 across your ISAs. If you have a partner, they have their own allowance too, meaning you could potentially shelter £40,000 each year between you. You can also contribute up to £9,000 a year into a Junior ISA (JISA) for a child, or grandchild.
These allowances are valuable, but they don’t roll over. If you don’t use them during the tax year, they’re lost. Starting early makes it easier to take advantage of them without needing a large lump sum later on.
Small contributions can add up
You don’t need £20,000 ready to invest on day one. Many people prefer to contribute gradually throughout the year.
Setting up a regular monthly investment can help build momentum and turn saving into a habit. It can also remove some of the pressure of trying to decide when the ‘right time’ to invest might be.
Regular investing also means you’ll be buying investments at different prices over time. When markets fall you may buy more units; when prices rise you may buy fewer. This approach, known as pound-cost averaging, can help smooth the effects of market movements and reduce the risk of investing a large amount at an unfavourable moment.
Time can make a difference
One of the biggest advantages of starting early is simply time in the market. The longer your money remains invested, the more opportunity it has to grow. This is largely due to compounding, where investment performance builds on what has already been achieved. Over long periods, this effect can significantly boost growth.
Research1 illustrates the impact of timing. Investing £20,000 at the start of each tax year and achieving an assumed return of 5.5% could grow to around £1.08m after 25 years. Waiting until the end of each tax year to invest the same amount could result in a pot of around £1.02m – roughly £56,000 less.
Of course, returns aren’t guaranteed, and many people prefer to spread contributions across the year, but the example highlights how starting sooner rather than later may help your investments grow over time.
Don’t overlook your pension
Your forties and fifties are often a key period for pension planning. The start of the tax year is a good moment to review your pension contributions.
Pensions benefit from tax relief, meaning a £100 contribution typically costs a basic-rate taxpayer £80. Higher-rate and additional-rate taxpayers may be able to claim further relief through self-assessment.
For most people, the Annual Allowance is £60,000 or 100% of earnings, whichever is lower. Making full use of this allowance where appropriate can help boost retirement savings in a tax-efficient way.
Other considerations
Reviewing your capital gains position throughout the tax year is another thing to be mindful of, so you make use of your annual exemption (£3,000) to help reduce tax on investment profits.
This stage of life can also be a good time to start thinking about long-term family wealth planning. Tuning in to Inheritance Tax (IHT) planning and imminent changes from April 2027 is a good idea. Although IHT planning may not be on your radar personally at this stage in life, if you have elderly relatives and are likely to inherit, you want to put yourself in a position where you have the knowledge and awareness of the implications.
No time like the present
The start of a new tax year offers a valuable opportunity to take control of your finances. Making small, proactive decisions now could help you make the most of available allowances and give your investments longer to grow.
If you’d like to explore your options for the year ahead, your Finli planner can help you put a clear, considered plan in place.
The value of investments can go down as well as up and you may not get back the full amount you invested. The past is not a guide to future performance and past performance may not necessarily be repeated. The Financial Conduct Authority does not regulate Will writing, tax and trust advice and certain forms of estate planning. Tax legislation and rates can change, and their application depends on individual circumstances.