Biz Extra
Published: December 12, 2022 | Updated: 6th September 2023
In this month’s Finance Matters, Collette Parry, Director Personal Tax at Saffery Champness, looks at Self-Assessment tax return tips.
We also get to meet Hanna Ashtari, PA to the Partners in the Bournemouth office of Saffery Champness.
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Self- Assessment tax return tips
By Collette Parry, Director Personal Tax, Saffery Champness
With the Self- Assessment tax return filing deadline looming fast, here are some practical hints and tips to help you when completing and submitting your tax return.
Don’t delay
Although completing your tax return is never going to be the most exciting job on your to-do list, don’t leave it to the last minute as this only makes the process more stressful. The Government Gateway portal can become very slow when lots of people are accessing it, and problems can occur. In addition, filing a tax return under pressure can lead to mistakes and/or omitting important information.
Be prepared
Always check you have everything you need before you start your tax return. It can be very frustrating when you are ready and focused to complete your tax return, only to find halfway through that you do not have all the information required. This can lead to delays and last minute panics, again making it more likely you will make mistakes.
Claim all allowances and reliefs
There are many reliefs and allowances available to taxpayers, and keeping abreast of them all can be a challenge. The most common reliefs individuals are entitled to include:
If you are unsure of what allowances you are entitled to, seek professional help.
Common pitfalls
The tax code is becoming increasingly complex, giving rise to restrictions and the claw-back of some reliefs and allowances. The most common pitfalls include:
Again, if you are unsure whether a restriction applies to you, please seek professional advice.
Paying your tax
The earlier you file your tax return, the more time you have to arrange payment of your tax liability. In addition, if you find yourself in the payment on account regime for the first time, you may have to find a further 50% of your previous year’s tax bill by 31 January 2023 and another 50% by 31 July 2023, so the amount you have to pay may be higher than you expected.
If you are finding it difficult to pay your tax, and if your liability is less than £30,000, you can arrange a payment plan relatively easily online with HM Revenue & Customs (HMRC). This is as long as you do not have any other payments plans or debts with HMRC, your tax returns are up to date, and it’s less than 60 days after the payment deadline.
Payments on account
If you are in the payments on account regime, it is possible to reduce these payments where you anticipate your tax liability for the current year will be less than the previous year’s. You can make the reduction in your tax return, although care is needed as interest will be charged where payments are reduced too far.
Check all the details are correct
Check, and double check, all of your details and ensure that you have accounted for everything. HMRC receive a lot of information directly from third parties, so if you have omitted anything or made any mistakes, they may open an enquiry. Penalties for inaccuracies in tax returns are often much harsher if HMRC spot them first and they will charge penalties if the original return is considered to have been filed ‘carelessly’.
Penalties
If you find you do not have all the information you need to complete your tax return, it is often better to file an ’estimated’ tax return to avoid the initial £100 late filing penalty. However, don’t forget to update your tax return with the correct figures as soon as they are available.
Don’t forget to pay your tax and ensure it is paid at least within 30 days of the payment deadline to avoid a 5% surcharge. If you are struggling to pay, it is better to let HMRC know as early as possible and certainly before the payment due date, otherwise HMRC may not agree a payment plan.
So long as any payment plan is agreed within 30 days of the payment deadline, any late payment penalties will be suspended. However, if the payment plan is not followed, the penalties will fall back into charge.
Interest will run from the due date until date of payment regardless.
Retain documentation
Don’t throw out documentation relating to your tax return as there is a legal requirement to retain it. Time limits are longer for those taxpayers carrying out a trade or business. For all other taxpayers, records must be kept until the later of:
For taxpayers who are self-employed, in partnership or who have income from property, records must be kept until the later of:
Seek professional help
If there is anything you are unsure of when completing your tax return, don’t delay and seek professional help. We help many taxpayers meet their filing obligations every year, particularly those with complex tax affairs such as non-residents, non-domiciled taxpayers, business owners with complex structures, landlords with multiple properties and trusts to name a few.
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Getting to know our team

Name: Hanna Ashtari
Role: PA to Partners
Time at Safferys: Six months
What’s the best bit about your job?
The friendships you build with the colleagues you are working with. I really enjoy helping the Partners to ensure that they are prepared and ready to succeed in their roles.
The culture of Saffery Champness is really important to the business and the people within it – what do you think you bring to the team and what do you contribute?
I have a ‘team player’ attitude and see collaboration as key to ensuring a win for all. If help is needed then I am always happy to pitch in and I believe the office appreciates this.
If you weren’t doing this role, what might you be doing?
Cabin Crew. I used to work for Etihad Airways but quit once I had my son. No two days were the same and I loved travelling to countries that are not the usual travel hot spots like Jordan and Syria.
What do you enjoy doing outside of work?
Ferrying my five-year-old energetic son to sports activities. He keeps me on my toes.
Tell us something about yourself that we don’t know
I have lived in the Middle East (Dubai) for half of my life. I grew up there from the age of four until 12 before moving to Bournemouth for secondary education. I then returned to the UAE for ten years after university.
Who or what inspires you?
Tobias, my son, continually surprises me and inspires me every day. He is extremely sociable and always walks into a new place with a smile on his face.
What’s your favourite place in Dorset?
During my teens, I grew up in the Westcliff/Westbourne area. I love the atmosphere and vibrancy of the shops and restaurants in and around the Westbourne Arcade. Also the views of Bournemouth beach at Westcliff, down to Bournemouth Pier are spectacular and have always felt like home.
Give three words to describe yourself
Determined, loyal and easy-going.