Cookies at Which? We use cookies to help improve our sites. If you continue, we'll assume that you're happy to accept our cookies. Find out more about cookies

30 ways to save on tax

By Ian Robinson

Put us to the test

Our Test Labs compare features and prices on a range of products. Try Which? to unlock our reviews. You'll instantly be able to compare our test scores, so you can make sure you don't get stuck with a Don't Buy.

30 ways to save on tax

Reduce your tax bill by making the most of these reliefs, allowances and expert tips. 

If you need help with your tax questions, or any other aspect of your finances, try Which? Money for two months for £1 and you can speak to a member of our Money Helpline team to get individual guidance.

Tax codes, allowances and deadlines

1. Tax code

Check your tax code each year (the numbers and letters on your payslip). If you're on the wrong code, you may be paying too much tax. For more details, use the Which? tax calculator to find out how much tax you should be paying.

2. Capital gains tax (CGT) allowance

Remember that capital gains in the 2017-18 tax year under £11,300 are tax-free. Married couples and civil partners who own assets jointly can claim a double allowance of £22,600. 

From 6 April 2016, CGT is charged at 10% if you are a basic-rate taxpayer (except on property gains, where the rate is 18%) and 20% if you pay tax at a higher rate (except on property gains, where the rate is 28%). 

Remember, if you don't use the allowance within the tax year, it's lost forever. For more details, see Capital gains tax explained.

3. Tax return deadlines

Don’t miss the 31 October deadline if you want to make a paper tax return. You can do your tax online up to 31 January, but paper tax returns need to be in three months earlier than online tax returns to avoid a £100 fine. For more details see Tax returns.

4. Annual investment allowance

If you are a landlord or run your own business, take advantage of the annual investment allowance (AIA) to claim for capital expenditure on items such as tools and computers. Since January 2016, relief of up to £200,000 a year has been available. In 2015, the limit was £500,000. 

5. Marriage allowance

From 6 April 2017, married couples and civil partners can transfer £1,150 of personal allowance from the lower-earning partner to the higher earner, saving them up to £230 in tax. 

This is only available if the higher earner is a 20% taxpayer – no transfer is possible if they are a 40% taxpayer. For 2016-17, the transferable allowance was £1,100, potentially saving £220. 

How to pay less tax if you're self-employed

6. Tax-deductible expenses

If you're self-employed, don’t forget to claim all your tax-deductible expenses, including cash expenditure where eligible.

7. Self-employed car costs

If you're self-employed, you can claim the running costs of a car but not the cost of buying one. If you use the same car privately, you can claim a proportion of the total costs. See our page on tax allowances for the self-employed for more.

8. Cash-flow boost for self-employed

If you are setting up as self-employed, you may be able to improve your cash flow by choosing an accounting year that ends early in the tax year. This maximises the delay between earning your profits and your final tax demand.

9. Annual losses

If you are self-employed, you can carry forward losses from one year and offset them against profits from the next. See our page on when the self-employed pay tax for more.

10. Payments on account

If you are self-employed and expect to earn less in 2017-18 than you did the year before, apply to reduce any payments on account that HMRC asks you to make.

Saving tax on property income

11. Rent a room

Rent a room relief is an optional scheme that lets you receive up to £7,500 (in both 2017-18 and 2016-17) in rent each year from a lodger, tax-free. This only applies if you rent out furnished accommodation in your own home. 

If two people who share a property take advantage of the scheme, they can only claim £3,750 each. 

12. Landlord's expenses

If you rent out property, you can deduct a range of costs before declaring your taxable income. These include the wages of gardeners and cleaners, and letting-agency fees. 

13. Tax relief on your mortgage

You can claim tax relief on the interest on a mortgage you take out to buy a rental property, even if it the rental property is abroad. In 2017-18, three quarters of the mortgage relief can be claimed in full. 

For the remaining quarter, a tax credit is available, equivalent to tax relief at the basic (20%) rate.  

14. Reduce CGT on a rental property

Landlords are normally liable for CGT when they sell a rental property. If it has been your main home at some time in the past, you can claim tax relief for the last eighteen months of ownership.

Pay less tax on savings and investments

15. Isa allowance

Use your tax-free Isa allowance. From 6 April 2017, the annual limit will rise to £20,000. For 2016-17 the annual limit was £15,240. This can all be put in a cash Isa, all in a stocks and shares Isa, or split between both cash and stocks and shares. See our guide to tax on savings and investments for more details.

16. No CGT on shares held in an Isa

There is no CGT to pay when you sell shares or units held in an Isa. For more details, see Tax on savings and investments.

17. Junior Isas

Use Junior Isas or Children’s Bonus Bonds to avoid being taxed on gifts you make to your own children. The annual allowance for Junior Isas rises to £4,128 in 2017-18, an increase from £4,080 in 2016-17. 

18. Transfer assets

Transfer savings and investments to your husband, wife or civil partner if they pay a lower rate of tax than you do. See our guide to tax and your partner for more information.

19. Dividend allowance

In 2017-18 (and 2016-17) the first £5,000 you receive in dividends from investments is tax-free. Basic-rate taxpayers will pay 7.5% tax on dividends they receive above the threshold, however. Higher-rate taxpayers pay 32.5% and additional-rate taxpayers 38.1%. 

20. Personal savings allowance

In 2017-18 (as with 2016-17), the first £1,000 of interest you receive from savings is tax-free if you are a basic-rate taxpayer. If you are a higher-rate taxpayer, the threshold is £500. 

Only when your savings income exceeds the allowance is any tax is due on it. This will no longer be deducted at source – if tax is due, you can pay it via self-assessment or have it deducted via PAYE through an adjustment in your tax code. 

There's no savings allowance if you're an additional-rate (45%) taxpayer. 

Tax savings for older people

21. National Insurance 

Make sure you stop making National Insurance contributions if you carry on working beyond state retirement age (currently 63 for women and 65 for men).

22. Gift Aid

Making donations to charity through Gift Aid can reduce your taxable income. 

23. Tax relief on gifts

If you are in a higher tax bracket, you can claim back the difference between the basic and higher rate of income tax on any Gift Aid donations.

24. Inheritance tax

Lifetime gifts are not normally counted as part of your estate for inheritance-tax purposes if you live for a further seven years after making them. Known as potentially exempt transfers (PETs), they can reduce your residual estate significantly.

Tax savings through employee benefits

25. Season ticket loan

If you are a commuter, check to see if your employer will give you a tax-free loan to buy your season ticket.

26. Pool cars

Use a pool car for occasional business travel if your employer provides these. 

27. Childcare schemes and tax credits

If you are an employee and pay for childcare, ask your employer if they have a childcare scheme. Salary sacrifice childcare schemes are easy to establish and can result in substantial savings for both employees and employers. Child tax credits can also save you money.

28. Company car

If you are entitled to a company car, consider whether it would be more tax-efficient to take a cash equivalent in pay instead.

29. Going green

If you are changing your company car, consider a low-emissions model . These are now taxed at a lower percentage of their list price than cars with a high CO2 rating. 

30. Pay in to a pension scheme

Contributions to your employer's pension scheme (including any additional voluntary contributions you make) can be made from your gross pay, before any tax is charged.

  • Last updated: April 2017
  • Updated by: Tom Wilson
SHARE THIS PAGE

Which? Limited (registered in England and Wales number 00677665) is an Introducer Appointed Representative of Which? Financial Services Limited (registered in England and Wales number 07239342). Which? Financial Services Limited is authorised and regulated by the Financial Conduct Authority (FRN 527029). Which? Mortgage Advisers and Which? Money Compare are trading names of Which? Financial Services Limited. Registered office: 2 Marylebone Road, London NW1 4DF.