Partnership Tax UK: A Complete Guide to Tax, SA800 & Profits in 2026/27
Running a business with a partner can be a great way to share the load, combine different skills and grow a business together. But when the business begins to make money, one question tends to come up pretty fast:
So how does partnership tax work in the UK?
It can be confusing at first because the partnership itself does not generally pay Income Tax on its profits. Instead , profits are determined for the partnership and then split among the partners . Each partner shall be liable for payment of tax on his share. And that’s where it can get a little tricky. You need to understand how profits are shared, how the SA800 partnership tax return operates, what happens to drawings, when Self Assessment is due, how National Insurance works and what the tax-year basis means for your business.
This guide explains the main points of UK partnership tax for 2026/27 in plain English, with examples to help you.
Important: This article provides general information about UK partnership tax and should not be taken as professional tax advice. Your actual tax position will depend on your individual circumstances.
What is partnership tax UK?
The easiest way to grasp partnership taxation is to view a partnership as tax transparent. In most cases the partnership itself does not pay Income Tax on its trading profits. Instead, the partnership determines its taxable profit and distributes that profit to the partners. Each partner then declares their share on their own tax return and pays any Income Tax and National Insurance due. For these purposes HMRC describes partnerships as tax transparent: the profits are calculated at partnership level then allocated between the partners.
A Simple Example
Imagine you and a business partner running a graphic design business. The business has made a profit of £80,000 after allowable expenses. You have agreed to share the profits 50/50. That is to say:
Your share £40,000
Your partner’s share of £40,000
It’s not just paying Income Tax on the £80,000 the partnership is doing. Instead, you each take your own share of £40,000 as part of your own tax affairs. And this is a key point: what you take out of the business is not necessarily what you are taxed on. We’ll get back to that in a moment.
How is a UK tax partnership taxed
The process consists of essentially three steps:
- Calculate the partnership’s taxable profit or loss.
- Allocate the profit or loss among the partners.
- Each partner reports their share and pays their own tax.
The partnership may have other tax obligations as well. These could be VAT, PAYE or other duties depending on the business. So you may hear it said that “a partnership doesn’t pay tax”, but that’s an oversimplification. The partnership has tax reporting responsibilities . The partners are usually responsible for Income Tax on their allocated profits .
Taxes to be Paid by Partners
For the majority of individual partners, the following taxes should be considered:
- Income tax
- National insurance contributions
- Capital gains tax (where applicable)
There may also be additional tax matters for which the partnership will be responsible, depending on the nature of the business activity performed. What is crucial is the fact that all partners might have different tax bills.
For instance, you and your business partner might be paid £50,000 in partnership profits each, but it doesn’t necessarily mean that your tax bills will be identical if one of you has a second job, pensions or any other source of taxable income.
Income Tax on Partnership profits
Your share of the taxable profits of the partnership will usually be part of your own taxable income.
In 2026/27, the Personal Allowance is £12,570. The general Income Tax rates in England, Wales and Northern Ireland are:
- Tax band Rate
- Personal Allowance £12,570
- Basic rate 20%
- Higher rate 40%
- Additional rate 45%
The Income Tax rates and bands are different in Scotland, meaning that Scottish taxpayers will have to calculate using those rates. Also note that the Personal Allowance may be decreased once the adjusted net income exceeds £100,000.
Do not just multiply your profits by 20%
One of the most common errors is to do just that.
Assume that your share of the profits is £50,000.
Mistakingly, you can say:
£50,000 × 20% = £10,000 tax.
However, depending on your Personal Allowance and other factors, the tax can be calculated differently. The same partnership profits can lead to different tax liabilities for different partners.
National Insurance for partnership members
However, Income Tax is not the only tax obligation of which partners need to budget for.
A partner deemed self-employed may be liable for National Insurance contributions as well.
In 2026/27, the following rates apply for Class 4 National Insurance:
6% on profits over £12,570 but no more than £50,270
2% on profits over £50,270
The rules governing Class 2 National Insurance contributions have been amended, with self-employed individuals being eligible for contributory benefit via their profits provided that the relevant conditions are met.
Remember to take both Income Tax and National Insurance contributions into account when estimating your net profit from the partnership business.
What Is an SA800 Partnership Tax Return?
Should your accountant ever talk about an SA800, it will refer to the Self Assessment tax return for your partnership.
The SA800 form is used to report the partnership’s income, deductions, and profit or loss. It reflects how this outcome is shared by the partners.
HMRC issues specific SA800 forms for partnerships.
What usually creates confusion is the fact that the SA800 return is not your individual Self Assessment return.
Consider the following analogy:
SA800 = partnership
Self Assessment = individual partner
The partnership return sets the figures. Each partner then uses their allocated share when completing their own tax return.
Who files the partnership tax return
A partnership has a nominated partner who must ensure that the partnership return is filed. However, that does not relieve the other partners of the responsibility of filing their own tax returns. It is the duty of each partner individually to file their tax return and pay their liability, if any. This point is also addressed by LITRG in its latest guidance for partnerships.
When Is the Partnership Tax Return Due?
For a partnership whose partners are individuals, the usual deadlines are as follows:
Return Normal Deadline
Paper SA800 31 October
Online SA800 31 January
These dates are based on the end of the relevant tax year, although there are exceptions and special rules for certain partnerships.
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Example: Tax year 2025/26
The end date for the 2025/26 tax year was 5 April 2026. Therefore, the filing deadlines would be as follows for a partnership with individual partners:
31 October 2026 for a paper form
31 January 2027 for an online form.
Remember that there will be separate filing dates for the Self Assessment forms of the individual partners.
How is Partnership Profit Shared Between Partners?
The partners usually decide between themselves how the profits or losses are to be divided.It may be as simple as 50/50, but not necessarily so. For example, for three partners it may be agreed:
Partner A: 50%
Partner B: 30%
Partner C: 20%
In the event that the partnership earns £100,000 of taxable profit, the distribution will be as follows:
Partner Proportion Amount distributed
A 50% £50,000
B 30% £30,000
C 20% £20,000
These figures become relevant on a personal tax return by the individual partners.
It is necessary to ensure that the distribution is correctly made and proper documentation is kept in relation to the distribution. The HMRC partnership guidelines indicate how the allocation of profits and losses is used when calculating individual taxation for the partners.
Are Partnership Drawings Taxable?
This is perhaps one of the most confusing issues facing new partners.
A drawing does not necessarily equal taxable profit.
A drawing is an amount taken out of the partnership by the partner.
Here’s an illustration
You are entitled to £60,000 of partnership profits. In the current period, you draw £45,000 from the firm. You would assume: I have drawn £45,000. This means that I’ll be taxed on £45,000 only.”
No, this is not true!
Your tax computation will depend on your taxable share of partnership profits, and not the drawings made. Therefore, you might have £60,000 of taxable partnership profit while making drawings of £45,000. This is why it’s important for partners to keep a clear distinction between:
- Profit
- Drawings
- Capital
- Partnership expenditure
- Current account
Your accountant will assist you in doing so.
Tax of Partnership and the Tax-Year Basis
Should you have been operating a partnership for some time, then you must have heard something about the basis period reform. It matters especially to those who keep their books not as of 5 April. As of 2024/25, the tax-year basis normally applies to the profits of an individual and partner from their trade. Put simply, the profits are taxed generally according to the profits arising in the tax year and not just according to the accounting period within that tax year.
What’s the significance of the accounting date?
Let’s assume that your partnership prepares its accounts as of 31 December.
There is no alignment between the business year and the tax year in the UK. Under the tax-year basis, you will likely need to apportion the profits made during the accounting periods to calculate the profit made in the tax year. It adds to the complexity of your tax calculation. If the accounting date of your business does not coincide with the tax year, then it would be wise to consult your accountant about it.
What Happens When Someone Joins Or Leaves the Partnership?
Partnerships evolve. Someone might join because the business needs to grow. Someone else might leave because of retirement, or sell out to form another enterprise. When something like this occurs, you should consider the potential tax implications. There are things to think about, such as:
- Date on which the partner joined or left
- Share of profit
- Allocation of profit for the period under consideration
- Capital contributed
- Partnership property
- Value of their share of partnership
- Possibility of Capital Gains Tax
- Amendments in the partnership agreement
- HMRC notices and record keeping
- The HMRC guide SA800 has information relating to partners joining and leaving in the relevant period.
It is especially important to seek professional advice in advance if someone buys or sells substantial partnership interest.
How Are Partnership Losses Handled?
Not all partnerships are profitable businesses. In case the trade results in a loss, such loss is normally apportioned among the partners in accordance with the particular arrangements. The loss relief will depend on the particular circumstances, but in some cases, the partner might benefit from claiming the relief.
However, loss relief can be a tricky area in many ways since there may be some restrictions in place regarding the trade in question, the degree of the partner’s involvement, and the investment in the partnership. Even when the partnership suffers losses, do not assume that all of them can be claimed as a relief.
Partnership Taxation and Capital Gains Tax
Capital gains tax will become relevant if the partnership gets rid of its assets or a partner gets rid of an interest in the partnership.
For instance, the partnership might dispose of:
- Commercial property
- Land
- Business property
- Securities or shares
- Other appreciating assets
- A partner may also sell their partnership interest in whole or in part.
Depending on the nature of the sale, the owner of the asset, and the structure of the partnership, taxation will vary. Therefore, significant asset sales and changes in ownership should always be planned ahead of time.
Is an LLP Taxed as a Partnership?
LLP, or Limited Liability Partnership, is a distinct entity from a typical partnership. Nevertheless, do not confuse the LLP as a “limited liability” entity with a limited company. LLP can be tax-transparent, which means that its members are taxable on their share of profits rather than the entity itself. Special provisions regarding the tax of LLP members, including salaried member provisions in certain cases, apply.
That is why it is essential to understand the difference between:
- A general partnership
- A limited partnership
- An LLP
- A limited company
These are different types of businesses.
Partnership vs Limited Company, Which is Best for Tax Purposes?
This is an inquiry that comes up time and again to accountants. Sadly, there is not an easy answer to this. The basic tax and legal framework between a partnership and a limited company is different in nature.
Partnership:
- Generally tax-transparent
- Partners taxed on their share of the profits
- Partners report income individually
- Flexible structure
- Personal liability of partners
Limited Company:
- Company pays Corporation Tax
- Individuals may get salary/dividends
- Companies and individuals treated separately for tax
- More administrative in nature
- Generally limited liability
Taxation is not the only issue to consider. Other issues include:
- Level of profit generated by the business
- Dividend of profits from the business
- Business risk
- Investment strategy
- Administration
- Pension
- National insurance
- Business growth
- Attracting investors
- Potential sale of the business
While a business with a profit level of £30,000 could be very different from one generating profits of £500,000.
VAT and Partnerships
VAT is not the same as Income Tax.
A partnership must make sure that it is registered for VAT if its taxable turnover exceeds the VAT registration threshold or it decides to register voluntarily for VAT.
The VAT position will be that of the partnership’s trading activity and not something where each partner has a separate VAT registration for the business.
Do not wait until you exceed the VAT registration threshold before you check out what needs to be done.
VAT has its own requirements for:
- Charging VAT
- Invoices
- Accounting
- Input tax
- Output tax
- VAT Returns
- Payment
- Deregistration
Making Tax Digital and Partnerships
Making Tax Digital is yet another subject matter which can confuse people. It has been undergoing change, and whether a person has Making Tax Digital duties or not can actually depend on his/her individual qualifying income.
Making Tax Digital for Income Tax becomes applicable for individuals above certain qualifying income level, from April 2026. The current guidance of LITRG makes it clear that partnership income does not qualify as qualifying income for the purposes mentioned above, though a partner’s other sources of income might bring him/her within the regime.
And don’t make the assumption that being a partner means you definitely should or shouldn’t be using Making Tax Digital.
Common Partnership Tax Mistakes to Avoid
Partnership tax may not be complex, but even small misunderstandings can be costly.
Below are some of the mistakes that you should avoid.
1. Assuming the partnership pays your Income Tax
While the partnership calculates its own profit, you as an individual have your own liability for Income Tax.
2. Treating drawings as salary
Taking amounts from the business does not automatically mean you receive a salary.
3. Not making your own personal Self Assessment
The SA800 does not replace your tax return.
4. Making a mistake when splitting the profit
Ensure that the profit allocation made by the partnership is consistent with your individual returns.
5. Waiting to fill in your SA800 until the last minute
The partnership tax return has its own deadlines.
6. Failing to remember your National Insurance
Your Income Tax estimate is not necessarily your full tax liability.
7. Disregarding the tax-year basis
If your accounting year is different from the tax year, make sure you understand the basis rules.
8. If all partners have the same tax status
Even with identical profit shares, two partners may end up having very different tax liabilities.
9. Altering profit shares without considering the tax consequences
When altering profit shares, documentation and proper consideration must be given prior to the alteration.
10. Thinking of an LLP as being a limited company
An LLP provides limited liability, but its tax structure is similar to a partnership.
Example of Partnership Tax
It’s time to tie it all up. For example, consider the consultancy partnership run by Sarah and James.
The total partnership profit subject to tax is:
£120,000
And, they have agreed on sharing their profit on a 60/40 ratio.
This gives us:
Sarah James
Partnership profit £120,000 £120,000
Profit share 60% 40%
Allocated profit £72,000 £48,000
The partnership declares the £120,000 profit and the allocation in its partnership tax return.
Sarah declares her share of £72,000 in her personal tax return.
James declares his share of £48,000 in his personal tax return.
However, each partner cannot easily compute their tax liability by using just one percentage on their share.
Their actual liabilities will depend on their total position, which may include income, allowances, and National Insurance.
This is what you should bear in mind:
Partnership profits allocation is the starting point—it does not equal to the actual tax liability.
Partnership Tax Checklist for 2026/27
If you are a partner in a UK business partnership, the following checklist will be useful for you:
- Maintain your accounts properly.
- Ensure the current profit-sharing arrangement is recorded in the partnership agreement.
- Keep the partners’ drawings and capital account separately.
- Calculate the taxable profit or loss of the partnership properly.
- Distribute the profit or losses among the partners properly.
- Complete the SA800 partnership return form.
- Identify the filing date.
- Provide the right amounts to the partners for their individual tax return.
- Complete individual Self Assessment returns.
- Plan Income Tax and National Insurance payments.
- Consider whether you need to register for VAT.
- Consider whether Capital Gains Tax applies when transferring partnership interests or assets.
- Consider the consequences of the tax year basis when your accounting period is different from the tax year.
- Identify whether any of your partners have their Making Tax Digital duties.
Concluding Thoughts: Making Partnership Tax Easier
Knowing about partnership tax in the UK should not be too hard either. The key thing is simple: first, the partnership calculates the profit to be taxed, then it distributes the profit among the partners, and finally, each individual partner has to manage his/her own tax status.
It’s in the details that things get tricky. Profit-sharing agreement, partnership drawings, National Insurance, SA800 forms, Self Assessment, tax year basis rules, changing partners and selling or transferring the partnership property can influence your tax liability and HMRC reporting obligations.
It is easier to start right than to fix something later.
How Horizon&Co Ltd Can Help
At Horizon&Co Ltd, we know that operating a partnership means a lot more than simply getting your accounts done at the end of the year. We strive to make the tax side of your business a little clearer for you.
Whether you’re just starting a partnership, operating an existing business or thinking about changing your partnership arrangements, we can help you with things like:
- Partnership accounts and tax return
- SA800 partnership tax return
- Self-Assessment of partners
- Allocation of partnership profits
- Tax planning and forward planning
- National insurance considerations
- Partnership and LLP tax advice
- Changing the composition of the partnership
- The possibility of transferring from partnership to limited company
- Annual accounting and tax compliance
Instead of being caught out by tax deadlines, dealing with an adviser during the course of the year may provide you with a clearer idea of your partnership financials and tax obligations. If you have any doubt as to your partnership tax responsibilities, Horizon&Co Ltd will be happy to advise you.
Contact us today to discuss your partnership and how we can assist you with your accounting and tax needs.
FAQs:
Generally, the partnership itself doesn’t pay Income Tax on its trading profits. The profits are calculated at partnership level and allocated to the partners, who are normally taxed on their individual shares.
There isn’t one fixed “partnership tax rate”. Your liability depends on your share of the partnership’s taxable profit and your personal circumstances, including other income and applicable allowances.
SA800 is HMRC’s Self Assessment Partnership Tax Return. It reports the partnership’s relevant income and expenses and shows how profits or losses are allocated between partners.
Generally, individual partners need to report their partnership income through their own Self Assessment return where required.
Not necessarily. Drawings are amounts taken from the partnership and aren’t automatically the same as taxable profit. A partner can be taxed on their allocated share of profit even if they withdraw more or less cash.
For partnerships with individual partners, the normal deadline is 31 October for paper returns and 31 January for online returns, although exceptions can apply.
Individual partners who are treated as self-employed may have National Insurance liabilities. For 2026/27, Class 4 NICs are generally charged at 6% on profits above £12,570 up to £50,270 and 2% above £50,270.
Not generally. An LLP can be tax transparent, meaning its members are normally taxed on their allocated profits, although specific rules can apply to members.
A partner leaving can affect profit allocation, capital accounts, partnership interests and potentially Capital Gains Tax. The partnership’s records and HMRC information may also need updating.
Partners can agree profit-sharing arrangements, but the arrangement needs to be properly documented and the tax reporting needs to reflect the applicable allocation.
