2025/26 online return and payment deadline: 31 January 2027 (108 days left)
Self Assessment tax returns for the self-employed, CIS contractors, landlords and company directors
Talk to a TaxPlus accountant in Barking about preparing and submitting your 2025/26 return. Choose your situation above and we will point your enquiry to the right person.
- Free 30-minute consultation to start
- Real accountants in a real Barking office, since 2012
- We explain what to send and when, in plain English
- Since 2012Serving clients
- Barking office29A Station Parade
- Speak to a personMon to Fri, 9am to 5pm
- Free to start30-minute consultation
Help for your kind of income
Choose your situation and we will point your enquiry to the right person.
Self-employed
Not sure which costs you can claim, or how to show your income?
We go through your income and allowable expenses with you, then prepare and submit your return.
Get help as self-employedFreelancers
Several clients, irregular invoices and costs that change every month?
We bring everything into one clear return and explain what you owe and when.
Get help as a freelancerCIS contractors
Tax already taken off by contractors and not sure it all counts?
We check your CIS statements so every deduction is included. Whether you owe more or are due a refund depends on your full circumstances.
Get help with CISSole traders
Need to file for your business and want to know what to send?
We tell you exactly what we need, prepare the return and answer your questions along the way.
Get help as a sole traderLandlords
Rental income, repairs and agent fees to report, maybe alongside a job?
We help you report rental income and allowable property costs correctly, including when you have other income too.
Get help with rental incomeCompany directors
Salary, dividends and other income to report on your personal return?
We support directors with their personal Self Assessment and explain what it means for your tax bill.
Get help as a director
Estimate your 2025/26 tax bill
A quick guide for England, Wales and Northern Ireland. It takes under a minute.
Indicative estimate only. Not a final tax calculation or professional advice. It does not cover dividends, student loans, pension relief, Scottish rates and other income or reliefs.
Everything this estimate leaves out
- Scottish income tax rates (if you live in Scotland this estimate does not apply)
- Dividends, savings interest and capital gains
- Student loan and postgraduate loan repayments
- Pension contributions, Gift Aid and other reliefs
- The £1,000 trading and property allowances, and mortgage interest relief for landlords
- Voluntary Class 2 National Insurance, losses brought forward and payments on account
Enter your figures above to see an estimate.
Common worries, and how we help
“What can I claim?”
We go through your costs with you so you claim what is allowed and leave out what is not.
“What if I have made a mistake before?”
Tell us about it. We review your position and explain your options.
“I have never filed a return.”
We explain what is needed. Registration for 2025/26 closed on 5 October 2026, so we first check your circumstances before agreeing next steps.
“I have a job and other income.”
A job, self-employment, rent and CIS can all sit on one return. We bring them together.
“What will the bill be?”
We work out your figure early and explain what is due and when, including any payments on account.
“The deadline is close.”
Contact us as soon as you can. The sooner we start, the more time there is to get your records in order.
Why not leave it late?
HMRC late-filing penalties for a Self Assessment return (late payment is charged on top):
- £100 if your return is late, even if you owe no tax
- £10 a day after 3 months, up to £900
- 5% or £300 after 6 months, whichever is greater, with a further charge at 12 months
Source: GOV.UK Self Assessment penalties (opens in a new tab). You can appeal a penalty if you have a reasonable excuse.
Your free 30-minute consultation
Talk to a TaxPlus accountant first. In 30 minutes we will:
- Understand your income and your situation
- Explain what you need to file, and by when
- List the documents you will need to send
- Answer your questions and agree the next step
- Send your requestFill in the short form or call us. It takes about a minute.
- We call you backA member of the team phones you during office hours to arrange your free 30-minute consultation.
- We talk it throughWe look at your situation, explain what you need to file, and which documents to gather.
- You decideIf you would like us to prepare your return, we explain the fee and next steps before you commit.
Our Barking office
TaxPlus Accountants Ltd29A Station ParadeBarking, Essex IG11 8EBPhone: 020 8507 8033 (Mon to Fri, 9am to 5pm)Email: info@taxplusaccountants.comView on Google Maps (opens in a new tab)Want to know more about the service first? Read about our Self Assessment tax return service.
Quick answers
Is the first consultation really free?
Yes. Your first 30-minute consultation with TaxPlus is free.
Is sending the form the same as booking an appointment?
No. The form is a request. We call you to arrange a time, and the consultation is confirmed when we have spoken.
I have never filed a return before. Can you help?
Yes, we can look at it with you. The usual registration deadline for 2025/26 (5 October 2026) has passed, so what happens next depends on your circumstances. We will review them in your consultation.
What documents will I need?
Usually details of your income and expenses, any CIS statements, rental figures, your Unique Taxpayer Reference (UTR) if you have one, and information from previous returns. We confirm exactly what you need when we speak.
When is the deadline for my 2025/26 return?
Online returns, and payment of any tax owed, are due by 11:59pm on 31 January 2027. If you want HMRC to collect a small balance through your tax code, file online by 11:59pm on 30 December 2026. Source: GOV.UK.
What if I am already late, or missed earlier years?
Contact us as soon as possible so we can review your situation. HMRC penalties can build up over time, so it helps to deal with it early.
How accurate is the tax estimate calculator?
It is a rough, indicative estimate using simplified 2025/26 rules for England, Wales and Northern Ireland. It does not cover every income type or relief, so please treat it as a guide only. Your real figure depends on your full circumstances and is confirmed when your return is prepared.
Do you only work with people near Barking?
Our office is in Barking, and the team also works with clients elsewhere in the UK. Ask us how this would work for you.
How much does it cost?
Fees depend on your circumstances. We explain them before you commit to anything. You can also read about the service on our Self Assessment page.
Ready to get your return sorted?
Request your free 30-minute consultation. We will call you back during office hours.