Tax on Tutoring Income for Teachers (2026/27)

A teaching salary is the simplest tax arrangement in the country. Your employer calculates everything, the Teachers' Pension contribution comes off before tax under a net pay arrangement, PAYE handles the rest, and most teachers go an entire career without filing a tax return. Add tutoring income and you cross a line into the self-employment system, which is not difficult but is genuinely different — different allowances, different National Insurance, different deadlines, different expense rules, and a payment mechanism that catches people out in its first year.

This guide works through the whole thing in the order you will actually meet it, using the current 2026/27 rates and real teacher pay points. If you have not yet worked out whether you are permitted to tutor at all, start with our guide to the private tutoring rules for teachers, which covers the contractual and safeguarding side. If you want to know what the tutoring market looks like now, our guide to tutoring work after the National Tutoring Programme covers that.

The £1,000 trading allowance, and what it really does

The trading allowance is a £1,000 a year tax exemption for self-employed and casual trading income, introduced to keep small side earnings out of the tax system entirely. For a teacher taking on a couple of pupils it is the single most important number on this page, and almost every misunderstanding about tutoring tax comes from misreading it in one of three ways.

First: it is measured on gross income, not profit. GOV.UK's guidance is written around your "annual gross income", meaning the total your customers pay you before you take anything off for expenses. A tutor who takes £1,400 across the year and spends £600 on platform commission, insurance and resources has a profit of £800 — comfortably under the allowance if profit were the test — but gross income of £1,400, and therefore a duty to register for Self Assessment. This is the trap that catches the most people.

Second: it is one allowance per person, across everything. It is not £1,000 of tutoring plus £1,000 of exam marking plus £1,000 of selling resources on a teaching marketplace. If you do all three, the allowance covers the first £1,000 of the combined gross total. Teachers are unusually likely to have several small trades running at once, which is exactly why this matters here more than in most professions. Note that exam marking for an awarding body is frequently paid through PAYE rather than as self-employment, so check how you are actually engaged before assuming it counts.

Third: it is separate from your Personal Allowance. The £12,570 Personal Allowance is already fully used up by your teaching salary. The trading allowance sits on top of it and is not reduced by your employment income — a teacher on the Upper Pay Range gets the same £1,000 as a trainee.

There is also a corresponding £1,000 property allowance for rental income, which works the same way but is entirely separate. If you rent out a room or a property as well as tutoring, you have £1,000 of each.

When you must register for Self Assessment

Once gross tutoring income for a tax year exceeds £1,000, you must register. The deadline is 5 October following the end of the tax year in which you exceeded it, and it is worth pinning down what that means in practice because the UK tax year boundary sits awkwardly across a school year.

Registration itself is straightforward. You register as self-employed on GOV.UK, HMRC issues you a Unique Taxpayer Reference, and you file the SA100 main return with the SA103S self-employment supplementary pages and the SA102 employment pages covering your teaching salary. The employment figures come straight off your P60. There is no fee and no requirement to use an accountant, though if your tutoring is substantial, one is usually worth the cost.

One thing you should not do is assume HMRC will not notice. Tutoring platforms, payment processors and online marketplaces have reporting obligations to HMRC under the OECD digital platform reporting rules, and HMRC receives data on payments made to individuals through those platforms. If you are tutoring through a platform, your income is already visible.

Trading allowance or actual expenses: pick one

Once you are in the Self Assessment system, you get a choice for each tax year, and you cannot have both. Either you deduct the £1,000 trading allowance from your gross income and claim no expenses at all, or you deduct your actual allowable expenses and forgo the allowance.

You can switch between the two from year to year, choosing whichever is better for that year, and there is nothing improper about doing so. A tutor whose first year is mostly online and whose second year involves a lot of driving can legitimately use the allowance in year one and actual expenses in year two.

What a tutor can actually deduct

This section contains the most pleasant surprise in the guide, and it is one almost nobody explains to teachers properly.

Expenses against your employment income — your teaching salary — are governed by section 336 of the Income Tax (Earnings and Pensions) Act 2003, which requires an expense to be incurred "wholly, exclusively and necessarily in the performance of the duties". That is a brutally narrow test, and it is why HMRC's teacher-specific guidance refuses classroom teachers almost everything, as our teacher tax relief guide sets out at length.

Expenses against a self-employed trade are governed by a different and materially more generous test: wholly and exclusively for the purposes of the trade. The word "necessarily" is absent, and there is an established mechanism for apportioning costs with a mixed private and business use. The practical result is that a teacher who cannot claim a penny of home working costs against their salary can claim a proportion of the same costs against their tutoring trade, because the legal test is not the same one.

• Platform commission and payment fees — whatever a tutoring marketplace or payment processor takes off each booking. Deduct the fee, and declare the gross amount the parent paid as your income, not the net amount that reached your account.
• Advertising and marketing — listing fees, a website, printed cards, local advertising.
• Your own DBS check and DBS Update Service subscription, where obtained for the tutoring rather than reimbursed by your school for your employment.
• Public liability and professional indemnity insurance taken out for the tutoring.
• Books, past papers, specification-specific resources and subscriptions bought for use with tutees.
• Use of home — either HMRC's simplified flat rate based on hours worked from home each month, or a fair proportion of your actual heating, lighting, broadband and phone costs. This is the one that surprises teachers most, because it is refused outright on the employment side.
• Mileage to a tutee's home at HMRC's approved rate, provided you keep a log recording the journey, date and purpose. Journeys to your own school remain ordinary commuting and are not deductible against anything.
• Equipment used for tutoring — a laptop, webcam, graphics tablet or headset — apportioned for any private use, either through the annual investment allowance or the cash basis depending on how you prepare your accounts.
• Accountancy or bookkeeping fees relating to the tutoring trade.

Income tax: your tutoring stacks on top of your salary

Income tax on tutoring profit is conceptually simple. Your tutoring profit is added to your other taxable income and taxed at whatever rate applies to that slice. Because your Personal Allowance is already used up by your salary, every pound of tutoring profit is taxed — there is no second tax-free band.

The only real subtlety is working out which marginal rate applies, and this is where teachers routinely get it wrong in a way that works in their favour. The Teachers' Pension Scheme operates a net pay arrangement: your member contribution comes out before income tax is calculated. So the figure that determines your marginal rate is not your headline salary but your salary minus your pension contribution.

On the TPS member contribution tiers in force from 1 April 2026, a teacher at the top of the Upper Pay Range on £52,835 contributes 9.9%, which is about £5,231, leaving taxable employment income of roughly £47,600. That is still comfortably inside the basic rate band. It takes a gross pensionable salary of around £55,800 before any part of a teacher's income is taxed at 40% at all.

The practical consequence for tutoring is that the first slice of your tutoring profit often fills up the remaining basic rate band at 20% before the rest is taxed at 40%. That is exactly what happens in the third worked example below, and it means your effective rate on tutoring income is frequently somewhere between 20% and 40% rather than neatly at one or the other. Our take-home pay calculator will give you your taxable employment income for any salary, which is the number you need before you can work out where your tutoring lands.

Scottish taxpayers should substitute their own rates: Scotland has six income tax bands with a 42% higher rate from £43,663 and a 45% advanced rate from £75,001, which changes the arithmetic on tutoring profit substantially and generally for the worse. National Insurance, the trading allowance and the self-employment rules themselves are UK-wide.

National Insurance: Class 2 and Class 4 explained

This is the part that sounds alarming and turns out, for most teachers, to be almost nothing. The reason is a single structural fact that is rarely spelled out: Class 4 National Insurance is charged on your self-employment profits alone. Your teaching salary does not enter the calculation, is not added to your profits, and does not use up the thresholds.

Contrast this with what would happen if the same money came through your payslip. An extra £8,000 of salary would attract 8% Class 1 employee NI — £640 — on top of income tax. The same £8,000 as tutoring profit attracts no NI at all. That is a genuine structural advantage of self-employed income at this scale, and it partly offsets the fact that tutoring earns you no pension.

Two honest caveats. If your tutoring grows into something substantial — profits above £12,570 — Class 4 starts applying at 6% and the picture changes. And if you have any year in which your only income is tutoring, for example a career break, the Class 2 position becomes genuinely important for your State Pension record, and voluntary contributions are worth considering rather than dismissing.

Three worked examples, from pocket money to serious

All three use 2026/27 rates, England and Wales income tax bands, and real STPCD pay points for England outside London. All three assume the teacher has no other untaxed income.

Example 1: an M3 teacher tutoring one pupil

A teacher on M3, £38,400, tutors one GCSE pupil for an hour a week at £35, for about 26 weeks across the year. Gross tutoring income: £910.

That is below £1,000, so the trading allowance covers it in full. There is no tax to pay, no National Insurance, no requirement to register for Self Assessment, and nothing to tell HMRC. The teacher keeps the whole £910. If they also sold £200 of resources online in the same year, the combined £1,110 would tip them over, and everything in the next two examples would apply.

Example 2: an M6 teacher with three regular pupils

A teacher at the top of the Main Pay Range on £46,940 tutors three pupils, three hours a week at £40, for 40 weeks. Gross tutoring income: £4,800. Their expenses are modest — mostly online, a little platform commission, some past papers — coming to around £400, so the trading allowance is the better choice.

Fifteen point eight per cent on gross income is a strikingly light touch, and it is entirely down to the combination of the trading allowance and the absence of any National Insurance. The bill of £760 is comfortably under £3,000, so provided this teacher files online by 30 December it will be collected through their tax code across the following year — roughly £63 a month of extra deductions — rather than as a single payment.

Example 3: a U3 teacher with a substantial tutoring practice

A teacher at U3 on £52,835 has built a serious practice: around eight hours a week at £45 across 39 weeks, some of it in pupils' homes. Gross tutoring income: £14,000. Real expenses — mileage, platform commission, insurance, resources, a share of broadband — come to £1,400, so actual expenses beat the allowance.

Three things are worth pulling out of that table. The profit is split across two tax rates, because it straddles the higher rate threshold — the first £2,666 at 20% and the rest at 40%. The Class 4 NI is a rounding error at £2, because profits only just cross £12,570, which shows vividly how little National Insurance matters at this scale. And the bill of £4,509 is over £3,000, so it cannot be collected through the tax code — this teacher has to pay it, and will meet payments on account for the first time.

Student loans: the forgotten 9%

This is the single most commonly missed item in teacher tutoring tax, and it is not small. If you are repaying an undergraduate student loan, repayments are not confined to your salary. Once you file a Self Assessment return, HMRC calculates your repayment on your total income for the year, applies the 9% rate above the threshold for your plan, and deducts what your employer already took through payroll. The difference is added to your Self Assessment bill.

Because a full-time teaching salary is already above every repayment threshold, the practical effect is that essentially all of your tutoring profit attracts a further 9%, or 6% on a Postgraduate Loan, and both if you have both. The current thresholds are £26,900 for Plan 1, £29,385 for Plan 2, £33,795 for Plan 4 in Scotland, £25,000 for Plan 5, and £21,000 for a Postgraduate Loan.

A common point of confusion is the £2,000 unearned income rule, which says that unearned income under £2,000 a year is ignored for student loan purposes. Self-employment profit is earned income, so that rule does not apply to tutoring — your profits count from the first pound. The £2,000 rule is about dividends, savings interest and similar.

Applying this to Example 3, a U3 teacher on Plan 2 with £12,600 of tutoring profit would owe a further £1,134 of student loan repayment on top of the £4,509 of tax and NI, taking the combined marginal rate on the higher-rate slice of their tutoring to 49%. That does not make the work unprofitable, but it does mean half of the top slice is going somewhere other than your bank account, and it is far better to know that before January than after.

Paying the bill through your PAYE tax code

This is the most useful administrative fact in the guide for the majority of teachers, because most tutoring bills fall well under the limit. HMRC will collect a Self Assessment bill through your existing PAYE tax code — spreading it across the following tax year in twelve monthly instalments — provided all three of the following are true.

• You owe less than £3,000 on your tax bill. GOV.UK is explicit that you cannot make a part payment to bring a larger bill under this threshold.
• You already pay tax through PAYE — which every serving teacher does.
• You filed on time for this purpose: a paper return by 31 October, or an online return by 30 December.

Even where you meet all three conditions, HMRC will not code the bill out if you do not have enough PAYE income for it to be collected from, if it would mean paying more than 50% of your PAYE income in tax, or if it would leave you paying more than twice as much tax as you normally do. None of those is a realistic risk for a teacher with a modest tutoring bill and a full-time salary.

One practical consequence worth anticipating: when the bill is coded out, your monthly take-home pay drops for the following year, and the drop will not be labelled on your payslip as "tutoring tax". It appears as a changed tax code. If you check your payslip in April and find your net pay has fallen without a pay change, this is very often the explanation, and your coding notice from HMRC will confirm it.

Payments on account: the January shock

Every teacher whose tutoring bill exceeds the coding-out limit meets this in their first year, and almost nobody is warned about it in advance. It is not an extra tax. It is a demand for next year's tax a year early, and in the first year it makes your bill 150% of what you were expecting.

Payments on account are triggered when your Self Assessment bill is £1,000 or more and less than 80% of your total tax for the year was collected at source through PAYE. A teacher with a substantial tutoring practice will often meet both conditions. When they apply, you pay the balance for the year just ended by 31 January, plus a first payment on account of 50% of that same amount, on the same day. A second payment on account of the other 50% follows on 31 July.

Making Tax Digital, and the coming £3,000 threshold

Two changes are moving through the system. Neither affects most tutoring teachers yet, and both are worth understanding so you know whether to worry.

Making Tax Digital for Income Tax replaces the annual return with quarterly digital updates from MTD-compatible software, plus a final declaration. It phases in by qualifying income, which means gross self-employment and property income before expenses:

The single most important feature for teachers is what qualifying income excludes. Your PAYE teaching salary does not count towards it at all, nor does pension income, dividends or savings interest. Only gross self-employment and property income. A teacher grossing £14,000 from tutoring, as in Example 3, is outside every phase including the 2028 one. A teacher who also lets a property, or who has built a tutoring business grossing over £20,000, needs to check the combined figure. One trap to note: once you are in MTD, you stay in until your qualifying income has been below the threshold for three consecutive tax years.

The £3,000 Self Assessment threshold is the change teachers ask about most, and it needs handling carefully because it has been widely reported as though it were already in force. It is not. The Government has announced that the Self Assessment reporting threshold for trading income will rise from £1,000 to £3,000 gross within this parliament — by the end of 2029 — with a new online service allowing people between those figures to report and pay any tax due without a full return. Two things do not change: the trading allowance stays at £1,000, so income between £1,000 and £3,000 may still be taxable; and until the new service exists, the current rules apply unchanged.

Your pension and tutoring income

Two separate questions get run together here, so it is worth separating them.

Does tutoring income build Teachers' Pension? Almost certainly not — but we want to be honest about the basis for saying so. We could not find a Teachers' Pensions publication that addresses self-employed tutoring directly. What the published eligibility rules do establish is that scheme membership requires employment in a predominantly teaching role with an accepted or participating employer: a state-funded school, academy or academy trust, sixth form or FE college, or an independent school that has elected into the scheme. Self-employed tutoring has no employer at all, and therefore no employment through which contributions could be made and no accepted employer to make them. That is a strong inference from the scheme rules rather than a quoted statement, and if a financial decision turns on it, put the question to Teachers' Pensions in writing.

Can you do anything else with the money for retirement? Yes, and it is worth knowing. Self-employed profits are relevant UK earnings for personal pension purposes, so tutoring profit increases the amount you can contribute to a personal pension or SIPP with tax relief. For a higher rate taxpayer, contributing tutoring profit to a SIPP is one of the few genuinely efficient things you can do with it — you get relief at your marginal rate, and it sits alongside rather than inside your Teachers' Pension. That is a financial planning decision rather than a tax mechanic, and it is exactly the kind of decision to take with a regulated adviser rather than from a web page. Our Teachers' Pension Scheme guide covers what the main scheme does and does not give you.

One further pension interaction to be aware of if your tutoring is substantial and you are a senior leader: tutoring profit increases your adjusted income for annual allowance tapering purposes, which can reduce the annual allowance available against your Teachers' Pension growth. This only becomes relevant at high total incomes, and our annual allowance guide and annual allowance calculator cover it properly.

Agencies, platforms and the IR35 question

Teachers who have read about supply teaching and umbrella companies often arrive at tutoring expecting IR35 to be relevant. For an individual self-employed tutor it is not, and it is worth being clear about why.

IR35 — the off-payroll working rules — applies where services are supplied through an intermediary, most commonly a personal service company. If you tutor as a sole trader, invoicing parents or a platform in your own name, there is no intermediary and IR35 has nothing to bite on. Setting up a limited company to tutor through would bring it into play, which is one of several reasons that is rarely sensible for a teacher with a handful of pupils.

The framework that is potentially relevant where an agency is involved is the agency rules in Chapter 7 of Part 2 of the Income Tax (Earnings and Pensions) Act 2003. Broadly, where a worker personally provides services to a client through an agency and is subject to, or to a right of, supervision, direction or control as to the manner in which those services are provided, the agency is treated as the deemed employer and must operate PAYE on the payments.

A related practical point: declare the gross amount the parent or platform was charged as your income, and claim the platform's commission as an expense. Declaring only the net amount that landed in your account understates your turnover, which matters for the £1,000 test, for the MTD qualifying income thresholds, and for the accuracy of your return. Platforms report payment data to HMRC, so a mismatch is visible.

Records, deadlines and penalties

Self-employment record keeping for a tutor is genuinely light, provided you do it as you go rather than in January. You need a record of every payment received with the date and who it was from, receipts or evidence for every expense you claim, a mileage log if you claim mileage, and your P60 for the employment pages of the return. HMRC requires self-employed records to be kept for at least five years after the 31 January filing deadline for the relevant tax year.

• Open a separate bank account for tutoring receipts. Not a business account, just a second current or savings account. It makes the entire year's income reconstructable from one statement.
• Log the gross amount charged, not the net after platform fees, and record the fee separately as an expense.
• Keep expense receipts digitally as you go — a photo into a dated folder is sufficient and takes seconds.
• Record mileage at the time with date, start and end postcode and purpose. Reconstructed mileage logs are the first thing challenged in an enquiry.
• Set aside tax as each payment arrives — a third for a basic rate teacher, half for a higher rate teacher with a student loan.
• Diarise 5 October, 30 December and 31 January, in that order of importance, for the relevant year.

On penalties, the structure is worth knowing because it is harsher than most people assume for what feels like a small amount of money. Filing late attracts an automatic fixed penalty even if no tax is due, with further penalties accruing the longer the return is outstanding, and paying late attracts separate percentage-based penalties plus interest on the unpaid amount. Failing to notify HMRC that you should be in Self Assessment at all is a third, distinct failure. None of these is proportionate to a £760 tutoring bill, which is exactly why the administrative dates matter more than the sums do.

Sources and accuracy

The trading allowance rules and the 5 October registration deadline are taken from HMRC's guidance on tax-free allowances on property and trading income. The National Insurance figures are the published 2026/27 self-employed rates: Class 2 not payable but treated as paid at the £7,105 small profits threshold with voluntary contributions at £3.65 a week, and Class 4 at 6% between £12,570 and £50,270 then 2% above. The tax code collection rules — the £3,000 ceiling, the 31 October paper and 30 December online deadlines and the three circumstances in which HMRC will refuse — are from GOV.UK's guidance on paying a Self Assessment bill through your tax code. The Making Tax Digital thresholds and dates are from HMRC's guidance on when you need to use Making Tax Digital for Income Tax.

Teacher pay points used in the worked examples are the confirmed 2026/27 STPCD figures for England outside London, effective from 1 September 2026, as published on our teacher pay scales page. TPS member contribution tiers are those in force from 1 April 2026. Income tax thresholds are the frozen England, Wales and Northern Ireland figures for 2026/27. All worked figures are rounded to the nearest pound and are illustrations of the method, not personal calculations.

Two items are explicitly flagged as less than fully verified. The first is the treatment of tutoring income for Teachers' Pension purposes, which we have presented as an inference from the scheme's eligibility rules rather than a quoted fact. The second is the precise application of the ITEPA 2003 agency rules to tutoring platforms, where we have described the framework without claiming certainty about how it applies to any particular platform.