Self Assessment in Manchester: A Complete Guide for Ride-Hailing Drivers
A self tax assessment return for a Manchester driver is the SA100 plus one self-employment page, with fares in turnover and mileage in expenses. This guide shows what goes in each box, when the short page applies, and which figures to reconcile before 31 January.
Published 9 November 2026 · Updated 9 November 2026
Your self tax assessment return is the form that tells HMRC what you earned and spent as a self-employed driver, and for most Manchester drivers it is two or three pages long. Most people fill it in online, and the hard part is not the website. It is knowing which box takes your fares, which takes your mileage, and which totals should match your app summaries.
This guide walks through the Self Assessment return itself, page by page and box by box, using an invented Manchester driver so you can see real numbers land in real boxes. It sits alongside our other Manchester articles, so we will not re-explain mileage rules here. If you want those, start with our Manchester mileage allowance guide.
Key takeaways
- The return is the main SA100 form plus a self-employment page, either the short version or the full version.
- According to HMRC's notes for the short page, you can use it if turnover was under £90,000 for the year; check GOV.UK for the figure that applies to your tax year.
- Fares and tips go in box 9 (turnover). Expenses go in the expenses boxes, with a single total allowed in box 20 if turnover is under £90,000.
- Never use the mileage rate and also claim fuel, insurance or repairs for the same car.
- Reconcile three totals before you file: your app annual summary, your bank payouts and your mileage log.
What is a self tax assessment return?
A self tax assessment return is the annual form HMRC uses to work out your Income Tax and National Insurance if you are self-employed. You report your income and allowable expenses for the tax year, which runs from 6 April to 5 April, and HMRC calculates what you owe.
Who needs to file a Self Assessment return in Manchester?
Any driver who is self-employed and earned more than the £1,000 trading allowance in a tax year normally needs to file. Where you live makes no difference to the form: Manchester, Salford and Stockport drivers all file with HMRC in the same way. Check GOV.UK if you are unsure whether you must file.
The trading allowance is explained in HMRC's guidance on property and trading allowances. If your total self-employed receipts are £1,000 or less, they are exempt and you usually do not need to report them. Above £1,000 you either claim the allowance or deduct your real expenses, never both.
Register for Self Assessment by 5 October after the end of the tax year in which you started. For 2025/26 that date was 5 October 2026, and the online filing and payment deadline is 31 January 2027, according to GOV.UK's Self Assessment deadlines. Our key tax dates guide lists the rest of the year.
Which pages make up your Self Assessment return?
A driver's return is made of the main SA100 form, called the tax return, and one self-employment supplementary page. That page is SA103S (short) or SA103F (full). Online, the software shows only the sections your answers trigger, so you rarely see all of the paper pages.
The SA100 holds your personal details, other income such as an employer salary or savings interest, and your reliefs and payments. The self-employment page holds your driving income and expenses. If you also let property or have a second trade, each needs its own page.
| Page | What it covers | When a driver uses it |
|---|---|---|
| SA100 (main return) | Personal details, UTR, other income, reliefs, declarations | Every driver who files |
| SA103S (short) | Turnover, total expenses, net profit for one simple business | Turnover under £90,000 and straightforward affairs |
| SA103F (full) | Turnover, a breakdown of expenses, capital allowances and adjustments | Turnover of £90,000 or more, or a more complicated business |
| Other supplementary pages | Property, employment, capital gains and so on | Only if you have that kind of income |
Short or full: what is the turnover limit?
The short self-employment page is for turnover below £90,000 for the year, and the full page applies at £90,000 or more. HMRC's 2025/26 notes tie this to the VAT threshold, so check GOV.UK each year in case it changes. Turnover means income before expenses, not profit.
According to the GOV.UK page for the SA103S form and notes, you can use the short form if you are self-employed, your tax affairs are fairly simple and turnover is below the VAT threshold. HMRC's notes also say you need the full pages if your accounting period was not twelve months, you changed accounting basis, or you need to adjust profits for Class 4 National Insurance. A driver with a second business or a VAT registration should read the notes carefully. Our VAT and Self Assessment checklist covers the overlap.
How do you complete the return step by step?
You complete it by registering, gathering three sets of records, filling in the SA100 and the self-employment page, and then checking your figures before you submit. Online, the software saves your progress, so you can stop and return as many times as you like before the deadline.
- Find your Unique Taxpayer Reference (UTR), the 10-digit number HMRC gave you, and sign in to your HMRC online account.
- Download your annual earnings summary from your driver app and the matching bank statements for 6 April to 5 April.
- Total your business miles from your mileage log and note the opening and closing odometer readings for the year.
- List other costs: phone, parking, licence fees, cleaning, accountancy. Keep the receipts.
- Answer the personal details and other-income questions on the main return, then open the self-employment section.
- Enter turnover, choose your expense method, and add the figures. The software shows your net profit.
- Reconcile the profit to your own records, check the tax calculation, and submit before 31 January.
Box-by-box: what goes where on the short self-employment page
The table below uses the box numbers from HMRC's 2025/26 notes for the short page. HMRC can renumber boxes, and online software labels them in words instead of numbers, so always read the labels on screen and check GOV.UK for the form you are filing.
| Box | What it asks for | What a driver puts there |
|---|---|---|
| 1 | Description of business | Short description, for example "ride-hailing driver" |
| 5Q / 5 | Did the business start after 5 April 2025? If yes, start date | Yes with a start date only if you began in that tax year |
| 7 | Date your books are made up to | Usually 5 April, or 31 March |
| 8 | Traditional accounting | Leave blank for cash basis, which is the default |
| 9 | Your turnover | All fares, tips and bonuses received in the year, before expenses |
| 10 | Any other business income | Rarely used by drivers |
| 10.1 | Trading income allowance | £1,000 allowance instead of expenses, if you choose it |
| 11 to 19 / 20 | Allowable expenses | The expense categories, or one total in box 20 if turnover is under £90,000 |
| 21 / 22 | Net profit or net loss | Calculated: turnover less expenses |
| 28 and 31 | Taxable profit after adjustments | Copied from the working sheet; box 31 is your taxable profit |
What goes in the turnover box for fares and tips?
Box 9 takes everything you received for driving before any expenses. HMRC's notes say to include all payments by cash, card or any other method, plus tips, fees and commissions. If you use the default cash basis, you count money when you receive it, not when the trip happened.
This is where drivers most often slip. Your bank shows payouts after the app operator took its fee, but the annual summary shows the gross fares. Whether the fee appears as a deduction from income or as a business expense depends on how your arrangement works, so ask for help if your summary is unclear. Either way, your profit should end up the same.
How do you claim mileage and expenses?
Choose between the flat-rate mileage method and actual vehicle costs, not both. For 2026/27 the simplified rate is 55p per business mile for the first 10,000 miles and 25p after that, according to GOV.UK's simplified expenses page for vehicles. Before 6 April 2026 it was 45p.
The flat rate covers the running costs of the car: fuel, insurance, servicing, repairs and vehicle tax. GOV.UK also says you can still claim parking and other travel costs on top. You cannot use the flat rate for a car if you have already claimed capital allowances on it. The same page confirms cars designed for commercial use, such as black cabs, are excluded, so check GOV.UK if you drive one.
Our Manchester 2026 mileage update explains the retrospective change from 6 April 2026, and our business miles step-by-step guide shows how to count those miles. You can test your own numbers with the mileage calculator. Keep a proper log: our mileage log and records guide covers what to write down.
Which other costs usually go on top of mileage?
- Phone and data used for driving, in the proportion that is for business.
- Parking and tolls that you paid out of your own pocket.
- Private hire licence and driver fees, but check GOV.UK and your licensing authority paperwork for what counts.
- Car cleaning and sat-nav or phone-holder costs.
- Accountancy or bookkeeping fees for your business accounts.
Our allowable expenses guide lists more. If a cost has a private element, claim only the business share.
Which figures should you reconcile before you file?
Reconcile three things: your annual earnings summary, your bank payouts and your mileage log. Your turnover should equal the bank payouts plus any fees or deductions the operator took, and your miles should match the odometer. Differences you cannot explain are what HMRC queries first.
| Check | Compare | Why it matters |
|---|---|---|
| Turnover | Annual earnings summary against box 9 | Under-reporting is the biggest risk |
| Bank payouts | Sum of deposits against the summary less fees | Shows nothing is missing, such as cash fares |
| Fees and charges | Operator fees on the summary against your expenses | Stops double counting or missing deductions |
| Business miles | Mileage log against odometer start and end | Supports the mileage claim if HMRC asks |
| Private miles | Total miles less business miles | Proves the split is realistic |
| Receipts | Phone, parking and licence costs against bank statements | Backs every expense line |
Illustrative example: one Manchester driver's year
This illustrative example uses an invented driver, who we will call Sam, working part of Greater Manchester for the whole of 2026/27. The figures are made up to show where numbers go. Use your own records, and do not treat them as a typical result or a promise of any saving.
Sam's annual earnings summary shows gross fares and tips of £42,000. The summary also shows £7,800 of operator service fees. The bank received £34,200, which is £42,000 less £7,800. Sam drove 21,000 business miles, kept a log, and chose the flat-rate method.
| Item | Working | Amount |
|---|---|---|
| Turnover (box 9) | Gross fares and tips from the summary | £42,000 |
| Operator service fees | From the summary | £7,800 |
| Mileage, first 10,000 miles | 10,000 × 55p | £5,500 |
| Mileage, remaining 11,000 miles | 11,000 × 25p | £2,750 |
| Phone and data (business share) | Estimate from bills | £360 |
| Parking and tolls | Receipts | £420 |
| Licence and driver fees | Receipts; check allowable | £310 |
| Cleaning and accessories | Receipts | £180 |
| Accountancy fees | £20 × 12 | £240 |
| Total expenses (box 20) | Sum of the lines above | £17,560 |
| Net profit (box 21) | £42,000 less £17,560 | £24,440 |
Sam's turnover is far below £90,000, so the short page works. Sam does not claim fuel, insurance or servicing separately, because the mileage rate covers them. The bank-to-summary check passes: £34,200 plus £7,800 equals £42,000.
HMRC then works out Income Tax and National Insurance on the £24,440 profit. We have not calculated the tax because the allowances, rates and National Insurance classes depend on the tax year, so check GOV.UK or use our tax calculator. Had Sam claimed the £1,000 trading allowance instead, no expenses would have been deductible, which would clearly be worse here.
Does Making Tax Digital change how you file?
Yes, for some drivers. Making Tax Digital for Income Tax started on 6 April 2026 for people with qualifying income above £50,000, and it extends to £30,000 from April 2027 and £20,000 from April 2028. If you fall inside it, you send quarterly updates through software instead of one annual form.
If your qualifying income is below the current threshold, you carry on with the annual return. The HMRC guidance on using Making Tax Digital for Income Tax explains how to check and sign up. Our Self Assessment versus Making Tax Digital guide compares them, and our Making Tax Digital service page shows how we help.
What happens if you file or pay late?
Late filing starts with a £100 penalty, and further penalties build up the longer you wait. Late payment attracts percentage charges and interest. The figures below come from GOV.UK; check the page for the current position, because HMRC can change penalty rules.
| Delay | Penalty (GOV.UK) |
|---|---|
| Return filed late | £100 initial penalty |
| After 3 months | £10 a day, capped at £900 |
| After 6 months | Further 5% of tax due or £300, whichever is higher |
| After 12 months | Another 5% of tax due or £300, whichever is higher |
| Tax paid late | 5% of unpaid tax at 30 days, 6 months and 12 months, plus interest |
See the penalties page on GOV.UK for the detail and for how to appeal. If HMRC is already disputing a penalty, professional representation is sensible.
What are the most common mistakes and what penalty do they trigger?
The most common mistakes are claiming fuel on top of mileage, reporting bank payouts as turnover, missing the deadline, and keeping no log. Each can cost money. Careless errors can lead to penalties on the extra tax due, and missing records weaken your position if HMRC opens an enquiry.
- Claiming mileage and fuel or insurance for the same car. Result: an overstated expense and extra tax plus a possible penalty for an inaccurate return.
- Entering bank payouts as turnover. Result: understated income if fees are not handled correctly.
- Using the 45p rate for 2026/27 miles by habit, or the 55p rate for the wrong year. Result: an incorrect claim either way.
- Filing late. Result: the £100 penalty and daily charges listed above.
- Having no log. Result: no evidence for your business miles. See GOV.UK's records for self-employed people for what to keep.
Key terms
- UTR: Unique Taxpayer Reference, the 10-digit number HMRC gives you for Self Assessment.
- SA100: the main Self Assessment tax return.
- SA103S / SA103F: the short and full self-employment supplementary pages.
- Turnover: your self-employed income before expenses.
- Trading allowance: up to £1,000 of income you can use instead of claiming expenses.
- Cash basis: counting income when received and expenses when paid.
- MTD: Making Tax Digital, HMRC's digital record-keeping and quarterly reporting system.
- NIC: National Insurance contributions.
Should you file as a sole trader or limited company?
The SA103 pages are for sole traders, so this guide assumes you are one. If you are thinking about a company, the filing, tax and record-keeping rules change a lot. Our Manchester limited company FAQ covers the questions to ask before moving.
How UK Driver Accountants helps
UK Driver Accountants is a UK accountancy for drivers only, with fixed fees from £20 a month and no connection to any app. We are independent of any ride-hailing app. We reconcile your earnings summary, bank payouts and mileage log, complete the return and explain the result. See our personal tax service, our Manchester page and pricing.
Conclusion
A Self Assessment return is far less frightening once you see it as three records feeding a handful of boxes: fares into turnover, mileage and costs into expenses, and a profit that you can explain. Reconcile the totals, file well before 31 January, and keep your records. If you would rather have someone do it for you, contact us.
Last reviewed 9 November 2026 by the UK Driver Accountants tax team
This article is general information and is not personal tax advice. Rules, rates and box numbers can change, so check GOV.UK and speak to a qualified accountant about your own circumstances. If HMRC is disputing a penalty or opening an enquiry, professional representation is recommended.
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