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Catherine Heinen, FCCA

Catherine is a Technical Content Writer at TaxAssist Accountants, and a qualified accountant. With experience working at two accountancy practices in the UK top 50 accountancy firms according to Accountancy Age, Catherine has significant experience in accounts, tax returns and advising clients. Catherine ensures businesses, business owners and individuals are kept up to date and informed by providing concise and informative technical material.


How do I register as self-employed?

I started a side-hustle in October 2023 which has really taken off and I need to know how to register as self-employed with HMRC.

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What you need to know when completing a P11D form

Understanding the intricacies of the P11D form can be a daunting task for UK employers. This guide demystifies the P11D form so you can prepare your business ahead of the deadline.

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Is the state pension taxable?

Is the income I receive as part of my state pension taxable and when do I need to report it to HM Revenue & Customs?

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A guide to company secretarial duties and responsibilities

The company structure offers businesses the benefit of limited liability protection with the company being a separate legal entity to the individuals who own and run it.

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A guide to understanding the Seafarers Earnings Deduction

If you are an employee and work at sea outside of the UK, you may be able to reduce your income tax bill using the Seafarers Earnings Deduction (SED).

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When to incorporate your sole trader business

When starting a business, thinking about business structure is an important conversation. For some, the choice is to start as a sole trader or partnership then, as your business expands, look at incor...

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Should I use the cash basis for my accounts?

With the restrictions to the cash basis being removed from 6th April 2024, should I change the way I am accounting?

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What are the changes to company size classifications?

I have heard that the size classifications of companies between small and medium are changing. Is this correct?

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Why would I buy a property through a company?

I want to expand my investment in property with a view to making it my main job. I am wondering whether setting up a company to do this would be the best way as the corporation tax rate is lower than...

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Understanding an overdrawn director’s loan account

Managing the financial health of a limited company involves many responsibilities, including maintaining a balanced director’s loan account.

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What has changed for the new tax year?

The new tax year starts on 6th April. This is often the date that new tax rates and rules come into force, so what does the new tax year have in store for you and your business?

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Essential updates for employers: Spring 2024

In the dynamic world of UK employment, the only constant is change. Staying abreast of the latest updates is imperative for employers.

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HMRC makes cuts to helpline access permanent

HMRC has announced changes to its helplines from 8th April 2024, to encourage customers to use their online services.

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Is Capital Gains Tax reducing?

I am getting ready to sell a property that I’m renting out and I know that I may need to pay Capital Gains Tax. I’ve heard that it is going down, is this correct?

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Tips for managing multiple rental properties

In 2021, the Government said that almost half of landlords (43%) have one rental property. Another 39% have between two and four properties, and 18% have five or more properties.

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How is National Insurance changing for directors?

I am a director and shareholder in my own company and, having heard the announcement that the class 1 NIC rate for employees is reducing. What is the most tax-efficient method of profit extraction fro...

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What does the abolishment of Furnished Holiday Lets mean for me?

I have a property that I let out as a Furnished Holiday Let (FHL). With the news in the Spring Budget that the FHL scheme will be abolished from April 2025, what does this mean for me?

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Accounts and Tax guide for the hospitality industry

The hospitality industry is a dynamic and competitive business environment for hotels, restaurants, pubs and bars. Effective financial management is crucial for success and growth.

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A guide to accounts and tax for new businesses

Thinking of starting a business in the UK or have you already begun? In this guide we look at the accounting and tax aspects you need to consider when starting a new business.

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Year-end tax planning tips for UK businesses

As the 2023/24 tax year draws to a close, it's crucial for UK businesses to stay informed and prepare for the upcoming year end to maximise your efficiencies. Take a look at our UK business tax planni...

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Companies house to increase fees

Companies House has announced that it will be increasing company registration fees from 1st May 2024.

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HMRC backtracks on tax changes for double cab pickups

HM Revenue and Customs (HMRC) has reversed its changes to the classification of double cab pickups from 1st July 2024.

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What are the changes for double cab pickup trucks?

I own a pickup truck for my business and I am not sure if the tax changes later this year will affect me – what is changing?

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Can electric cars be used in a salary sacrifice scheme?

I am a business owner and I want to improve my green credentials. I have heard that a way to reduce the emissions is to consider providing a salary sacrifice scheme for employees wanting to buy an ele...

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What is the 60% tax trap?

Income tax rates in England, Wales and Northern Ireland are spread over three taxes. Those in the Basic Rate Band (BRB) pay tax at 20% while those in the higher and additional rate bands pay 40% and 4...

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What tax relief can I claim on property repairs?

I have a rental property that I bought four years ago, I have carried out extensive repairs in that time and I am confused as to what I can and can’t claim as tax relief. Please could you clarify what...

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Changes at Companies House – what this means for you

The changes to the Economic Crime and Corporate Transparency Act (ECCTA) received royal assent on 26th October 2023. Companies House is “aiming to introduce some of these changes on 4th March 2024… th...

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Changes coming to reporting employment benefits from April 2026

The reporting and payment of income tax and Class 1A NICs on benefits in kind (BIK) will be made through payroll software from April 2026

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How long do I need to keep my tax records?

Now that I’ve submitted my tax return, can I throw the supporting documents relating to my business and P60 away? I’ve got a lot of paperwork from over the years and it’d be great to have a sort out.

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10 year-end tax planning tips for individuals

The UK tax year ends on 5th April and now is the perfect time to think about tax planning. The action you take over the next couple of months can help to maximise your income tax savings.

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Sole trader or limited company – which structure is best for my busine...

Choosing a legal structure is one of the most important decisions for a new business owner, and understanding the options can be challenging.

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What you need to know about associated companies

From 1st April 2023, new associated company rules were introduced, replacing the old rules. We look at what has changed.

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10 things you need to know if you are self-employed

As a self-employed individual you’re paramount to your business. Whether you’re new to self-employment, or you’d like a refresher, check out our top 10 key points in this article..

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How do I claim child benefit?

I claimed for child benefit using paper forms and the postal service for my previous children, but I hear there’s an online service now available. How do I claim child benefit for my new baby?

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Reduced National Insurance Contributions – what should I expect on my...

Will I get more take home money this month, following the changes to National Insurance rates?

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5 things you need to know about limited companies

Many see running their business as a limited company as a tax advantageous business structure. We’ve summarised the top 5 insights that you need to know about limited companies.

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More businesses turn to their accountants to help navigate the cost-of...

The cost-of-living crisis has resulted in businesses needing more services from their accountants.

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When is my company accounts filing deadline?

I run a company with the 31st March year-end, is my deadline the same as the 31st January tax return filing deadline?

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HMRC targets the self-employed for side hustle tax

Self-employed individuals with side hustles are the focus of a new HM Revenue and Customs (HMRC) initiative to improve tax collection and regulation management with digital platform reporting rules.

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5 things directors need to know

As a director, we understand you're busy. We want to keep it brief, but we want to make sure you know what you need to so we’ve condensed this information into five points

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Top expenses for your self-assessment tax return

As a business owner, or self-employed individual, the last thing you want is to pay more tax than you need to. Knowing what allowable business expenses you can include on your self-assessment tax retu...

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The Cash Basis: What did the Autumn Statement change?

The Government has considered feedback in relation to its consultation on the expansion and simplification of the cash basis for accounting.

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What is business asset disposal relief?

This article looks at the importance of the capital gains tax relief "Business Asset Disposal Relief" (formerly entrepreneurs’ relief). In an evolving tax landscape business owners seek strategies to...

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Making Tax Digital for Income Tax: What did the Autumn Statement chang...

In November 2023, the Chancellor announced the Autumn Statement. While he did not mention Making Tax Digital in his speech, there have been some changes announced in the executive summary.

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Key tax dates you need to know if you are self-employed

Staying on top of key dates will ensure you stay on track, meet deadlines and avoid paying penalties and interest. We list the key dates sole traders need to be aware of in this concise guide.

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Key dates limited companies need to know

Staying on top of key dates will ensure you stay on track, meet deadlines and avoid paying penalties and interest. We list the key dates sole traders need to be aware of in this concise guide.

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The Minimum Wage and the pursuit of a Real Living Wage

Employers must pay their employees at the hourly rate known as the National Minimum Wage (NMW). In this article, we'll explore the history and growth of minimum wage and the idea of the Real Living Wa...

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Is my bank interest income taxable?

I have received a lot more interest from my bank this year because of the increase in savings interest rates. I am a higher rate taxpayer and earned almost £1,000 of interest across my accounts. Pleas...

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Small and micro companies face accounts reporting changes

The Government is planning to introduce new filing requirements for small and micro businesses to “make the filing requirements easier to understand, reduce fraud and error, and improve transparency”.

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How to protect yourself from tax scams

Tax scams are common and often peak around the tax return filing deadline. HMRC responded to over 200,000 tax scams in past year to January 2024, up 14% from the previous 12 months.

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Five questions you should ask your accountant

As a business owner you want your business to be a success and so should your accountant. The relationship with your accountant is important. They are offering a service and you should be satisfied th...

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Can I pay my underpaid income tax through my PAYE code?

I’ve just finished my self-assessment tax return and have a balance of tax to pay. I have employment income as well as other earnings that have resulted in the under payment of tax. In previous years...

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What are income tax payments on account?

My tax return has been submitted and I’ve been advised that I need to make payments on account. What does this mean; and how do I work them out?

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Will I need to pay tax on child benefit income?

My husband and I both work and I am receiving child benefit for our son. Someone has told me about the ‘High Income Child Benefit Charge’. I’m worried I’m going to have to pay tax on the income, pleas...

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Can I claim mortgage interest as a deduction on my rental property acc...

I have a portfolio of four rental properties and I want to ensure that I am claiming all relevant expenses against the income. I am a little confused over the changes to the claim of mortgage interest...

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Our Guide to Understanding P60s

A P60 is important as it proves the income tax you have paid on your employment or pension. You can use it as evidence to third parties who may ask to see it. Our guide will explain your P60, includin...

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Basis period reform – what do I need to do?

I am self-employed and my accounts have a September year end. I keep hearing about the changes to basis periods do I need to do anything

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What tax does a business have to pay?

To help you determine what tax you and your business may be liable for, read this guide.

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Are flu vaccines for my staff tax free?

I’m a director of company and - to reduce staff sickness - I want to offer to pay for the flu vaccination for my employees. What tax implications do I need to consider?

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A guide to paying corporation tax

Corporation tax rates changed from 1st April 2023 for the first time since 1st April 2015. It is important to understand and anticipate these changes to allow you to budget for your tax payment.

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When is the tax return deadline for the 2022-23 tax year?

I have heard that the deadline for submitting my self-assessment tax return to HMRC is the end of October. What should I do if I have not sent my tax return information to my accountant yet?

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What is the VAT threshold?

I am an electrician and my income has increased compared to last year. How do I know if I should register for VAT?

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Is the threshold for filing a self-assessment tax return changing?

I have heard that HMRC will be changing the threshold for taxpayers who pay tax through PAYE to complete a self-assessment tax return. Could you please confirm what the new threshold is and when it wi...

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Can I claim for working from home tax relief?

As a self-employed builder I am mostly working elsewhere but I do work from home to do my books. Am I able to claim for use of home on my tax return?

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5 things landlords need to know

Being a landlord can be difficult and it’s important to prioritise what you need to know. This short guide to help you on your way, whether being a landlord is new to you or you’d just like a refreshe...

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Making Tax Digital: Where are we now?

The Government’s initiative to make the UK’s tax system more efficient was first rolled out in 2019. This guide provides an update on the latest developments with Making Tax Digital and what is to com...

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A guide to crypto tax

Learn everything you need to know about paying tax on gains and income made from the buying, selling and investing in cryptoassets.

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National Minimum Wage Rate Changes

I’ve heard the national minimum wages figures are changing from April, what will they be?

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I can’t file my self-assessment tax return by 31st January, will I get...

I have to file a 2022/23 self-assessment tax return but am not going to be able to get it filed by 31st January 2024, will I get a penalty if I file it by the middle of February 2024?

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How much National Insurance do I pay as an employer?

Employers in the UK pay National Insurance Contributions (NIC) based on the amount you pay your employees. These NICs contribute to a state pot, which funds state benefits.

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How bookkeeping works for a sole trader

Unsure what accounting records you need to keep for your business? Learn more about your business bookkeeping responsibilities as a self-employed person, and what information your accountant needs fro...

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How much National Insurance do I pay?

Individuals in the UK will make National Insurance Contributions (NICs) based employed income or self-employed profits. These NICs contribute to a state pot, which funds state benefits.

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The tax benefits of electric vehicles

The Government is delaying the ban on new petrol and diesel cars by five years. This delay is causing setbacks in the transition to electric vehicles. The requirement is now for all new cars to be zer...

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Changing from sole trader to limited company

Find out how to change from being a sole trader to being a limited company, including related costs and transferring property ownership.

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The benefits of online accounting in a changing business climate

Although manual records, spreadsheets and desktop accounts software have done the job for many years, the evolving needs of small and medium-sized businesses require a more agile bookkeeping solution.

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Why and how sole traders can become VAT registered

Find out everything you need to know about registering for VAT as a sole trader, including the current earning threshold past which you must become VAT registered.

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Changes to landlord Capital Gains Tax rules

Changes to the Capital Gains Tax tax free allowance, the CGT tax rate for higher rate taxpayers and the abolishment of multiple dwellings relief in England and Northern Ireland and Furnished Holiday L...

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What is a tax code?

I have been asked for my tax code, but what is it?

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Eight steps to making your Payroll Year End easier

The payroll year ends on 5th April, here is our eight-step guide to help you put your payroll in order.

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Five tax benefits available to your business for going green

Being a green, sustainable business offers improved reputation and makes businesses more attractive to customers and employees. Being green also improves the commercial viability of your operation and...

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Tax saving tips for you and your business

Delving through the array of allowances and reliefs available to help minimise your tax liability can be a daunting process. It can be tricky for small business owners to establish what's available an...

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Five reasons to outsource your payroll

If your business is expanding and you’re thinking of taking on employees or already have employees but are after some assistance with your payroll look no further. It's understandable to feel daunted...

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What you need to know when filing your tax return and paying your tax...

More than 12 million people are expected to file a self-assessment tax return for the current tax year.

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Making Tax Digital

Making Tax Digital (MTD) is the UK Government's plan to modernise the UK's tax system and was announced in the 2015 Budget.

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How do I amend my tax return?

I have received a letter from HM Revenue & Customs (HMRC) stating that I may not have told them something and owe tax. I am not sure what to do, please could you help?

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What is the Confirmation Statement?

The Confirmation Statement replaced the Annual Return (AR01) in June 2016.

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