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Self Assessment tax returns

Your Self Assessment, done for you — accurately, on time, from £249

Hand your tax return to a dedicated UK accountant. We claim every relief you’re owed, deal with HMRC for you, and file early — so you stop worrying about January and keep more of what you earn.

  • Fixed fee, agreed up front
  • Xero, QuickBooks & FreeAgent certified
  • A named accountant, not a portal

What’s included

Everything, for one fixed fee

  • Your full return prepared. We complete your SA100 and any supplementary pages — self-employment, property, dividends, capital gains or foreign income.
  • Every relief & allowance claimed. Pension contributions, Gift Aid, the Marriage Allowance, mortgage-interest relief and all allowable expenses — so you never overpay.
  • We act as your HMRC agent. We register as your agent (form 64-8), deal with HMRC for you, and step in if they ever raise a question.
  • Filed early, not in a panic. Submitted directly to HMRC in good time — with your bill confirmed months before the 31 January deadline.
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Sound familiar?

The tax return that hangs over your year

For most people, Self Assessment is a yearly source of dread. The rules are dense, the language is HMRC’s, and one missed box or late submission turns into real money in penalties. It’s the job that gets pushed to the back of the drawer — until late January, when it becomes a stressful, expensive scramble.

The worst part isn’t even the stress. It’s the quiet cost of getting it wrong: the reliefs you didn’t know to claim, the expenses you forgot, the tax you overpaid simply because no one told you otherwise.

  • Not knowing how much to set aside for tax
  • Guessing which expenses you’re allowed to claim
  • A £100 fine the moment you’re a day late
  • Confusing letters and a payment-on-account surprise
  • Hours lost to HMRC’s online system
  • The nagging worry you’ve got something wrong
The solution

Hand it over, and consider it handled

Our Self Assessment service takes the whole return off your plate. You send us a few documents; we do the rest — accurately, in plain English, and well before the deadline.

Your full return prepared

We complete your SA100 and any supplementary pages — self-employment, property, dividends, capital gains or foreign income.

Every relief & allowance claimed

Pension contributions, Gift Aid, the Marriage Allowance, mortgage-interest relief and all allowable expenses — so you never overpay.

We act as your HMRC agent

We register as your agent (form 64-8), deal with HMRC for you, and step in if they ever raise a question.

Filed early, not in a panic

Submitted directly to HMRC in good time — with your bill confirmed months before the 31 January deadline.

Who needs to file

Do you need to do a Self Assessment?

HMRC requires a return from far more people than you’d think. If any of these sound like you, you almost certainly need to file — and we can take care of it. Not sure? A quick call will settle it for free.

Check if you need to file
  • Sole traders and freelancers earning over £1,000
  • Landlords with rental income
  • Company directors with income outside PAYE
  • Partners in a business partnership
  • High earners (over £150,000, or affected by the Child Benefit charge)
  • Anyone with capital gains, dividends, or foreign income
  • People with significant savings, investment or side income
Why it pays

More than a return filed — money and time back

Pay less tax, legitimately

Most people miss reliefs they are entitled to. We know what to claim and apply it correctly, so you keep more of what you earn.

Never miss a deadline again

We track every date and chase you for what we need — the £100 fine and daily penalties simply stop being your problem.

HMRC off your back

Accurate returns filed by an agent mean far less risk of an enquiry — and if one comes, we handle it for you.

A real, named accountant

Not a faceless portal. You get one dedicated accountant who knows your situation and answers when you call.

Deadlines & penalties

The dates that cost you money

Miss these and the penalties stack up fast. When you’re with us, we track every one for you — but it’s worth knowing exactly what’s at stake.

Online return & payment
Due by 31 January following the tax year (which ends 5 April).
Paper return
Due earlier — by 31 October.
Miss the deadline
Automatic £100 penalty, then £10/day after 3 months (up to £900), plus more at 6 and 12 months.
Payments on account
If your bill tops £1,000 you usually pay half again towards next year — on 31 January and 31 July.
Transparent pricing

Know the price before we start

No hourly billing, no vague “it depends”. After a quick free consultation we agree a fixed fee for your return up front — so the only surprise is how painless it was.

  • A fixed quote, agreed before any work
  • No nasty year-end surprises
  • Often offsets itself in the tax we save you

Self Assessment returns

from £249

Simple returns. Fixed fee confirmed after your free quote.

Get my fixed quote

Making Tax Digital is coming — we’ll get you ready

From April 2026, Making Tax Digital for Income Tax begins for self-employed people and landlords earning over £50,000 (over £30,000 from April 2027), bringing digital records and quarterly updates to HMRC. It’s a big shift — and one we’ll guide you through and set up well before it applies to you.

Why Provense

A tax return you can trust — and a team that picks up the phone

Qualified & experienced

AAT- and ACCA-qualified accountants who have filed returns for hundreds of individuals and businesses.

Accurate & HMRC-ready

We file as your agent to the highest standard, cutting the risk of errors and enquiries.

Switching made simple

Already have an accountant? We handle the whole move for you — it takes minutes of your time.

Still deciding?

The honest answers to what you’re thinking

Can’t I just do it myself?

If your tax affairs are genuinely simple, you can — and we’ll tell you honestly if that’s you. But once you have business expenses, property, multiple income sources or capital gains, the time, stress and risk of mistakes usually outweigh our fee. We also tend to find reliefs that more than cover the cost.

Is an accountant really worth it?

For most people who have to file, yes. Beyond saving hours and removing the deadline stress, claiming the right reliefs and structuring income well frequently saves more tax than the fee — and a correctly filed return reduces the chance of an HMRC enquiry.

I’m behind or have never filed — can you help?

Absolutely. We regularly bring people up to date, file late or missing returns, and where needed make a tidy disclosure to HMRC to keep penalties to a minimum.

Switching accountants sounds like hassle.

It isn’t. We request what we need from your old accountant, handle the HMRC agent authorisation, and manage the move for you. Most people are surprised how quick it is.

How it works

Three simple steps to a filed return

  1. 01

    Send us your figures

    We give you a simple, plain-English checklist. Upload your documents to our secure portal — no jargon, no spreadsheets required.

  2. 02

    We prepare & optimise

    Your dedicated accountant completes the return, claims every relief, and calculates exactly what you owe (or are owed).

  3. 03

    You approve, we file

    We talk you through it, you e-sign, and we submit straight to HMRC — well ahead of the deadline.

FAQ

Self Assessment questions, answered

How much does an accountant charge for a Self Assessment tax return?
Across the UK, accountants typically charge anywhere from around £150 to £400+ VAT for a standard return, depending on complexity. Our Self Assessment service starts from £249, with a fixed quote agreed up front after a free consultation — so there are no surprises and you know the cost before any work begins.
Is it worth getting an accountant for Self Assessment?
For most people who are required to file, yes. You save hours of work and the stress of the deadline, you’re far less likely to make a costly mistake, and we usually find reliefs and allowances that reduce your bill by more than our fee costs.
Can my accountant submit my Self Assessment for me?
Yes. Once you authorise us as your agent with HMRC (a quick form we handle for you), we prepare and file your return on your behalf. You remain legally responsible for the return, which is exactly why we make sure it’s accurate.
What information do you need to do my tax return?
It depends on your income, but typically: details of your self-employment or rental income and expenses, any P60/P45, dividend and interest statements, pension and Gift Aid contributions, and details of any capital gains. We send a tailored checklist so you know exactly what to gather.
What are payments on account?
If your tax bill is over £1,000, HMRC usually asks you to pay towards next year’s bill in advance — half on 31 January and half on 31 July. They catch a lot of people out, so we always explain your full payment schedule clearly.
Do I need to worry about Making Tax Digital?
Making Tax Digital for Income Tax is being phased in from April 2026 for self-employed people and landlords with income over £50,000 (and over £30,000 from April 2027). It means digital records and quarterly updates to HMRC. We’ll tell you if and when it affects you, and get you set up well ahead of time.

Get your Self Assessment off your plate today

Book a free, no-obligation consultation. We’ll confirm your fixed fee and show you exactly how much stress — and tax — we can save you.