When PAYE stops covering everything
Plenty of people in Watford commute into London from Watford Junction, or work for one of the employers around Clarendon Road and Croxley Park. Their salary is taxed before it reaches the bank. Then life adds something else. A bonus, a buy to let flat, a share portfolio, an inheritance invested in a savings account, a pension from a job overseas.
Each of those has its own rules, and they affect each other. Extra dividends can push salary into a higher band. Rental profit can trigger the child benefit charge. A personal tax accountant looks at the whole picture rather than one payslip, so nothing is taxed twice and nothing is left out.
Some people only discover the problem when HMRC sends a calculation showing tax underpaid, or when a bonus quietly moves them past £100,000. Others have been overpaying for years through a tax code nobody checked. Either way, the fix starts with a full list of what you earn and where it comes from.
Income over £100,000 and the 60% trap
The standard personal allowance is £12,570. Once your adjusted net income goes above £100,000, you lose £1 of that allowance for every £2 of extra income. By £125,140 it has gone completely. On income in that band, the effective rate of tax is far higher than the headline rate.
Adjusted net income can be reduced by personal pension contributions and Gift Aid donations. A well timed pension payment before 5/4 can restore some or all of the allowance. This is one of the most valuable checks a personal tax accountant makes for higher earners, and it only works if the contributions are reported correctly on your return.
What is included
- Self assessment returns for mixed income
- Checks on the £100,000 personal allowance taper
- High Income Child Benefit Charge calculations
- Higher rate pension relief claims
- Dividend, savings and investment income
- Capital gains on shares and property
- Foreign income and double tax relief
- PAYE tax code checks
- Amending earlier returns
Child benefit, pensions and household income
The High Income Child Benefit Charge starts when the higher earner in a household has adjusted net income over £60,000. It claws back child benefit gradually and takes all of it back at £80,000. Many families in St Albans and Radlett pay it without realising that the same pension contribution that protects the personal allowance also reduces this charge.
Pension relief itself is often under claimed. Your provider adds basic rate relief to personal contributions automatically. Higher and additional rate relief is usually claimed through your tax return. Most people can put up to £60,000 a year into pensions with tax relief, and unused allowance from the previous 3 tax years can sometimes be carried forward. Very high earners may have a lower, tapered allowance.
Married couples and civil partners can sometimes use the marriage allowance, which lets one partner transfer £1,260 of personal allowance to the other where the conditions are met.
Savings, dividends and gains
Interest outside an ISA is covered by the personal savings allowance: £1,000 for basic rate taxpayers, £500 for higher rate taxpayers and nothing for additional rate taxpayers. Dividends have a separate £500 allowance. Above that, for 2026/27, dividends are taxed at 10.75%, 35.75% or 39.35% depending on your band.
Selling shares, crypto or a second property can create a capital gain. The annual exempt amount is £3,000, and gains above it are taxed at 18% or 24%. Gains on UK residential property with tax to pay must be reported and paid within 60 days of completion, which is a separate step from your yearly return. Our capital gains tax page goes into more detail.
Landlords should also know that separate, higher tax rates on property income have been announced from 6/4/2027. If you let property, we can show you what that may mean for your bill.
Foreign income and new arrivals
UK residents are generally taxed on worldwide income. That includes rent from a family flat abroad, interest in an overseas bank or a pension from a former employer in another country. Relief for foreign tax already paid is often available under double taxation agreements, but it has to be claimed.
The remittance basis for non domiciled people was abolished from 6/4/2025. It was replaced by a regime that gives relief on foreign income and gains for a limited period to people who have recently become UK resident. Whether you qualify depends on your residence history, so we check that first using the statutory residence test.
Personal tax accountant support across Hertfordshire
Our office is on St Albans Road in Watford, and we work with clients across Hertfordshire and north west London, mostly by email and video. You send your documents through a secure upload. We prepare the return, explain any tax due in plain words and file it once you are happy.
We also check your PAYE tax code, because a wrong code is a common reason for an unexpected bill. If an earlier return was wrong, it can usually be amended within 12 months of the 31/1 deadline for that year. Fees are fixed and agreed before any work starts, after a free review.
Clients often stay with the same personal tax accountant for years, because the second return is easier than the first. We already know your pensions, your rental figures and your carried forward losses, so each year starts from an accurate base.
Who this suits
- Employees with income above £100,000
- Parents affected by the child benefit charge
- Investors with dividends, interest or share sales
- People who have moved to the UK or have assets abroad
- Employees who also let out a property
- Retired people with several pensions and savings
Common questions
Tax comes out of my salary. Why do I still owe HMRC money?
PAYE only deals with your job. If you also have rent, dividends above the allowance, savings interest above your allowance or foreign income, that tax is collected through self assessment. A wrong tax code can also leave you underpaid.
How is tax worked out between £100,000 and £125,140?
In that band you lose £1 of personal allowance for every £2 of income, on top of higher rate tax. This creates a very high effective rate. Personal pension contributions and Gift Aid reduce the income used for the test.
Do I pay tax on the interest from my savings?
Only above your personal savings allowance, which is £1,000 for basic rate taxpayers, £500 for higher rate taxpayers and nil for additional rate taxpayers. ISA interest is tax free and does not count.
I moved to Watford from overseas. Do I need to declare foreign income?
Usually yes, once you are UK resident. There is a limited period regime for people who have recently arrived, and whether it applies depends on your residence in earlier years. We check that before your first return.
Can I give part of my personal allowance to my spouse?
If you are married or in a civil partnership, earn less than your personal allowance and your partner pays tax at the basic rate, you can transfer £1,260 of your allowance. This is called the marriage allowance.
I sold some shares this year. Does that go on my tax return?
If you have a gain above the £3,000 annual exempt amount, or you need to claim a loss, you report it on your return. We work out the gain using your purchase and sale costs.
What does a personal tax accountant need from me?
Usually your P60, any P11D, bank interest and dividend statements, pension contribution statements and details of rent or foreign income. If you have sold assets, we also need the purchase and sale paperwork.