"I used Taxfix for the first time. Very helpful and patient accountant who fully understood my needs. They answered my questions in terms that I could understand and helped explain my completed tax return simply."
Lorraine
Trustpilot
Your first tax return done right. Not just done
A UK-accredited accountant guides you through every step. They check what you can claim, file on your behalf and explain everything. You're not alone in this.
First time filing? You're in safe hands.
"I used Taxfix for the first time. Very helpful and patient accountant who fully understood my needs. They answered my questions in terms that I could understand and helped explain my completed tax return simply."
Lorraine
Trustpilot
Why Taxfix?
Qualified accountants
UK-based, ACCA, CIMA, or CTA accredited, with 5+ years’ experience.
Accuracy Guarantee
Your return filed right, or we fix it at no extra cost. T&Cs apply.
Rated by thousands
4.8/5 stars from 7,000+ UK reviews on Trustpilot
Who can we help
We can help everybody that needs to file a tax return: first-time filers, self-employed, freelancers & contractors investors, construction workers, high earners (£100K+), landlords (inc. Airbnb hosts), expats, couriers, drivers and many more.
How it works
HMRC don't make it easy. We do. Here's how three simple steps get your first Self Assessment done and dusted.
01
Answer a few simple questions
And we mean a few. After a couple of minutes of answering questions online we’ll have everything we need to start preparing your tax return.
02
Find the right plan for you
Select the support that fits your needs – from basic accurate filing to full HMRC defense and ongoing tax optimisation throughout the year.
03
Meet your accountant
Meet your dedicated accountant who takes over from here – checking accuracy, maximising deductions, and filing with HMRC. You’re in expert hands.
Who’s my accountant?
Each accountant is vetted before they can join our superstar community. Most own their own practice, all have 5+ years industry experience.
100% UK-based accounting community
A hand-vetted group of ~150 practitioners
Rated 4.8* out of 5 from 7k+ reviews
Accredited by the major UK accounting bodies
Regular quality audits to maintain a gold standard
Plans to fit your needs
All plans include accurate filing. Up to 40% off for new customers when purchasing an annual plan. T&Cs apply.
Save £70
Prepared & Filed Accurately
£169
Expert sign off included, so you know it’s right
Get startedAccountant prepares & files your Self Assessment
Accuracy Guarantee
Message your accountant during filing
If your situation is straightforward, this is enough.
Save £100
Filed, Optimised & Protected
£249
We find what you’re owed, and protect you if HMRC asks questions
Get startedEverything in Prepared & Filed Accurately
Deduction & relief optimisation + strategic tax-planning call
Full HMRC protection (audit + letter support)
Most filers choose this – if you’d rather not leave money on the table.
Save £150
Filed + a Year-Round Tax Partner
£499
An accountant on retainer, helping you stay on top of your tax position all year
Get startedEverything in Filed, Optimised & Protected
Year-round access to your accountant
Annual tax efficiency review
HMRC agent representation
If your situation is more complex, or you want year-round accountant support.
| Prepared & Filed Accurately | Filed, Optimised & Protected | Filed + a Year-Round Tax Partner | |
|---|---|---|---|
| Price | £99 | £149 | £349 |
| Accountant prepares and files your return | |||
| Accuracy Guarantee | |||
| HMRC integration | |||
| Tax optimisation, delivered through a consultation call with your accountant | |||
| HMRC audit & letter support | |||
| UTR Registration | |||
| Year-round accountant access & annual tax efficiency review | |||
| HMRC agent representation | |||
| Accountant access | Messaging while filing your return | Messaging on anything related to your return + consultation call | Year-round messaging and scheduled calls, any tax topic |
Prepared & Filed Accurately
Filed, Optimised & Protected
Filed + a Year-Round Tax Partner
Price
£99
£149
£349
Accountant prepares and files your return
Accuracy Guarantee
HMRC integration
Tax optimisation, delivered through a consultation call with your accountant
HMRC audit & letter support
UTR Registration
Year-round accountant access & annual tax efficiency review
HMRC agent representation
Accountant access
Messaging while filing your return
Messaging on anything related to your return + consultation call
Year-round messaging and scheduled calls, any tax topic
Here’s everything that’s included
All of our tax return services are filed by a UK-accredited accountant and covered by our Accuracy Guarantee.
See what you might have missed
Upload a previous year’s tax return and find out where you could have saved money.
Start now
Still have questions?
Here are some common questions we've gotten from first-time filers like you.
Most people in the UK don’t need to file a tax return because they’re taxed through a system called PAYE (Pay as you earn) and only receive their income after tax.
But, in other situations and for a variety of reasons, you might need to file a Self Assessment tax return.
Some instances include:
You’re self-employed and earned over £1,000 untaxed.
You have any untaxed income over £1,000.
You want to claim a tax refund.
HMRC tells you to submit one.
You qualify for benefits.
Expenses are costs that you might be able to claim against your earnings so that you pay less tax.
What you can claim will depend on your situation, sources of income, and the tax-free allowances which you’re already claiming.
The two most common sources of income where it makes sense to claim expenses are for self-employment and rental income, but it is possible to claim certain expenses from other sources of income too.
The UK tax year for personal tax returns goes from 6th April to 5th April. For example, the 2025/26 tax year starts on 6th April 2025, ends 5th April 2026 and you have to file and pay your tax bill by 31st January 2027.
If it’s your first time filing, you should make sure that you register for Self Assessment with HMRC (this basically means letting HMRC know that you’re earning untaxed income) by 5th October 2026.
HMRC has over 130 phone lines, but most of them are not relevant for everyday taxpayers.
These are the most important ones:
For questions about Self Assessment tax returns: 0300 200 3310
For questions about how much tax you need to pay and what reliefs you can claim: 0300 200 3300
For questions about National Insurance: 0300 200 3500
Your UTR number is a Unique Taxpayer Reference that you get when you register for Self Assessment. It consists of 10 digits (sometimes with a letter K at the end) and is issued to you by HMRC.
“Payment on Account” means that you pay tax in two instalments:
First in January (the usual deadline for paying the tax bill for last year), second in July.
In your first year as self-employed, you will likely have to pay 150% of your tax bill in one go.
For example: your tax bill for 2019/20 is £9,000. You need to pay this in full by January 31st 2021, but you also need to pay an additional advance payment of £4,500 (50% of £9,000) at the same time.
Finally, you have to pay another £4,500 by July 31st 2021.
Basically, it's an advance payment. If you turn out to earn less or more this tax year, HMRC will adjust it for you, and refund if needed.
Also, if you earn more than 80% of your income through PAYE, you won't need to use Payments on Account.
Yes.
For example: you works as a restaurant waiter in the morning and drive an Uber in the evenings. You will have to file a tax return for your Uber income.