Stress-free Self Assessment tax returns from Workwell Accountancy
Whether you are self-employed, a property landlord or a company director, we manage your annual tax filing from start to finish. Your dedicated, named accountant handles the calculations and submits your return directly to HMRC, leaving you free to focus on your work.
Free to set up No minimum contract Switch in minutes
All-inclusive from
£42.50/mo + VAT
Dedicated personal accountant
Hidden or year-end fees
FreeAgent software subscription
Direct filing to HMRC
What you get with Self Assessment Tax Returns
Who needs to complete a Self Assessment?
If any of these sound like you, HMRC expects a tax return. Not sure? That's exactly what we're here to check.
Self-employed
Sole traders with trading income over £1,000 in the tax year.
High earners
Anyone with income over £100,000, regardless of employment status.
Landlords
Anyone receiving rental income from property in the UK or abroad.
Company directors
Directors who receive income (e.g. dividends) outside PAYE.
Foreign income
UK residents with income from overseas sources or foreign assets.
Untaxed income
Savings interest, dividends or other untaxed income above your allowances.
Self Assessment deadlines
Miss any of these and HMRC applies automatic penalties — even if you owe nothing. We track every date for you.
5 Oct
Register for Self Assessment
Register with HMRC if it's your first return. Miss this and you risk penalties before you've even filed.
31 Oct
Paper return deadline
The deadline if you file on paper. Most people file online — it's simpler and buys three more months.
31 Jan
Online filing + payment
The big one: online returns filed, any tax owed paid, plus your first payment on account for next year.
31 Jul
Second payment on account
If HMRC has set payments on account, the second instalment is due — we'll tell you exactly what to pay.
Common Self Assessment mistakes
The slips that cost people money every year — all of them avoidable with a dedicated accountant in your corner.
Missing the deadline
An automatic £100 penalty hits the moment you miss 31 January — even if you owe nothing. It escalates fast: £10/day after 3 months, then 5% surcharges at 6 and 12 months.
Forgetting expenses
Home office, mileage, subscriptions, equipment — missed allowable expenses mean paying more tax than you need to. We claim everything you're entitled to.
Wrong income figures
Leaving out a source — rental income, savings interest, dividends, a side gig — is a common error that triggers HMRC enquiries and inaccuracy penalties.
Registering too late
Newly self-employed or with a new income source? You must register by 5 October after the tax year ends — late registration carries its own penalty.
The difference a dedicated accountant makes
Your own dedicated accountant
You will work with a named, qualified accountant who gets to know you and your business. No call centres, just direct email and phone support when you need it.
Free accounting software included
Get a free subscription to FreeAgent, the award-winning online accounting platform. Easily log expenses, snap receipts and track your tax position in real time.
One fixed monthly fee
Our service is covered by a single, transparent monthly cost with no hidden charges. You get year-round proactive tax support without worrying about unexpected bills.
Proactive deadline management
We track your filing dates and prompt you for information well ahead of time. This ensures your return is submitted early, avoiding last-minute stress and HMRC penalties.
Going it alone vs having us in your corner
You can absolutely do your own books. Here's what actually changes when a dedicated accountant takes it off your plate.
Doing it yourself
Accounting software
Pay for FreeAgent yourself — that's £100s a year on top.
Tax savings
Easy to miss allowable expenses, reliefs and allowances.
Your time
Evenings lost to receipts, spreadsheets and HMRC admin.
Knowledge & deadlines
MTD, National Insurance and filing dates — costly to get wrong.
With Workwell
Accounting software
FreeAgent included free, set up and ready to go.
Tax savings
Proactive planning to claim every allowance — often saving more than we cost.
Your time
We handle the books and filing, so you get your evenings back.
Knowledge & deadlines
A named accountant keeps you compliant and filed on time, every time.
The bottom line
Free software, more tax saved and your time back — for just £42.50/mo.
Most clients save more in tax and software than they pay us. Switching takes minutes.
Everything, sorted
Registration and setup
- Registering you for Self Assessment with HMRC
- Setting up your online tax account
- Activating your free FreeAgent software
- Reviewing your previous tax returns
- Identifying your specific tax deadlines
Income and expenses
- Reconciling your self-employed earnings
- Calculating allowable business expenses
- Declaring property rental income
- Recording dividend payments and savings interest
- Applying relevant tax-free allowances
Review and submission
- Checking your tax return for errors
- Calculating your exact tax liability
- Explaining your payments on account
- Submitting the return securely to HMRC
- Providing your official filing receipt
Year-round support
- Direct access to your named accountant
- Proactive advice on changing tax rules
- Answering questions about your tax bill
- Assisting with HMRC correspondence
- Planning for future tax year changes
“Workwell has administered my company since formation in 2014. I am very happy with the quality of the service that they have provided. Danielle and Ross, in particular, have been excellent in their roles as lead client accountants.”
Limited company client
With Workwell since 2014
Questions, answered
Ready to get self assessment tax returns sorted?
A dedicated accountant, unlimited advice and free software — one simple monthly fee. Set up in minutes.