Direct answer: A women-led partnership itself pays no Income Tax in 2026/27. Instead, each partner pays Income Tax and Class 4 National Insurance on her own share of the partnership’s profits, through her Self Assessment return. The split follows your partnership agreement — so a 70/30 split means one partner is taxed on 70% of the profits and the other on 30%.
Partnerships are a popular shape for women-led businesses: two friends opening a studio, a mother-and-daughter consultancy, or two freelancers joining forces to win bigger clients. The tax rules are not complicated once you grasp the one big idea — the partnership is transparent for tax. HMRC looks straight through it to the partners. This guide explains what each partner pays, which deadlines apply, and how the numbers work, with a worked example.
How Partnership Tax Works
A traditional partnership is not a separate taxpayer the way a limited company is. The partnership files one partnership tax return (form SA800) that reports the total profit, but no tax is charged on that return. Instead, the profit is divided between the partners, and each partner is taxed on her share as if it were her own self-employed income.
That has two practical consequences. First, each partner needs her own Unique Taxpayer Reference (UTR) and her own Self Assessment return, in addition to the partnership return. Second, partners can face very different tax bills from the same business, because the split and each partner’s other income decide the bill. A partner with no other income uses her full £12,570 Personal Allowance against her share; a partner who also has a part-time job may already have used hers.
Our guide to business tax for UK partnerships covers the general rules in more detail. If you still need to register, see how to register as a partner with HMRC.
The Profit Split: Why Your Agreement Matters
The profit split is set by your partnership agreement — the written document that says who gets what percentage. HMRC taxes each partner on the share the agreement gives her, not on how much cash she actually drew from the business during the year. That distinction matters: if you agree 50/50 but one partner takes more drawings, both are still taxed on 50% each.
A written agreement also protects the partnership itself. Without one, the Partnership Act 1890 applies by default: profits are shared equally, no partner can be expelled, and the partnership dissolves if a partner leaves or dies. For a women-led partnership built on trust, putting the split in writing is the single most valuable piece of paperwork you will ever sign — it decides both your tax bills and your rights if the relationship changes.
Income Tax and National Insurance on Each Share
Once the split is known, each partner’s share is taxed exactly like a sole trader’s profit. For 2026/27, the rates in England, Wales and Northern Ireland are:
| Band | Taxable income | Rate |
|---|---|---|
| Personal Allowance | Up to £12,570 | 0% |
| Basic rate | £12,571 to £50,270 | 20% |
| Higher rate | £50,271 to £125,140 | 40% |
| Additional rate | Over £125,140 | 45% |
The bands apply to slices of income, not to all of it. Only the slice above £12,570 is taxed at 20%, and only the slice above £50,270 at 40%. Your Personal Allowance shrinks above £100,000 and disappears at £125,140.
| Contribution | 2026/27 rule | What it means for you |
|---|---|---|
| Class 4 National Insurance | 6% on profits from £12,570 to £50,270, then 2% above £50,270 | Paid with each partner’s Self Assessment bill |
| Class 2 National Insurance | Treated as paid once a partner’s profit share reaches £7,105 | Protects her State Pension record at no extra cost |
| Voluntary Class 2 | £3.65 a week | Worth considering for a partner whose share is below £7,105 |
Allowable expenses are deducted at partnership level before the split, not by each partner separately. Rent, software, insurance, travel and professional fees all reduce the total profit first, so both partners benefit from good record-keeping. If your trading income is small, note that the £1,000 trading allowance cannot be used against partnership income in the same way as sole-trader income — take advice if this applies to you.
VAT: The £90,000 Line Applies to the Partnership
VAT registration is tested on the partnership’s total taxable turnover, not on each partner’s share. Once the partnership’s turnover passes £90,000 in a rolling 12-month period, or is expected to pass £90,000 in the next 30 days, the partnership must register for VAT and charge it on its sales. Each partner does not register separately for the same business. Below £90,000, registration is voluntary — it can pay off when your customers are VAT-registered businesses, but it can hurt when they are ordinary consumers.
Deadlines Every Partner Must Know
Miss a deadline and the penalty starts at £100 per late return — and there are two returns to worry about, not one. For the 2026/27 tax year:
| Deadline | What is due |
|---|---|
| 5 October 2027 | Register the partnership and each new partner for Self Assessment |
| 31 October 2027 | Paper partnership return (SA800) and paper personal returns |
| 31 January 2028 | Online partnership return, online personal returns, and payment of each partner’s balancing payment |
| 31 July 2028 | First payment on account towards 2027/28 for partners whose bills exceed £1,000 |
One partner is usually nominated to file the partnership return, but every partner remains responsible for her own personal return and her own bill. If the nominated partner files late, the partnership return penalty can fall on all partners, so agree in writing who files what and by when. Payments on account also catch first-time partners by surprise: if a partner’s bill is over £1,000, HMRC asks for next year’s tax in two advance instalments, making the first January bill 1.5 times the tax expected.
Worked £ Example: £100,000 Profit Split 70/30
Meet Meera and Sophie, fictional partners in a women-led interior design practice in Manchester. In 2026/27 the partnership makes £100,000 of profit after expenses, split 70/30 under their agreement. Neither has other income. Here is what each pays:
| Partner | Profit share | Income Tax | Class 4 NIC | Total bill |
|---|---|---|---|---|
| Meera (70%) | £70,000 | £15,432.00 | £2,656.60 | £18,088.60 |
| Sophie (30%) | £30,000 | £3,486.00 | £1,045.80 | £4,531.80 |
| Partnership total | £100,000 | £18,918.00 | £3,702.40 | £22,620.40 |
Meera’s Income Tax shows why the higher-rate band matters: her first £37,700 of taxable income is taxed at 20% (£7,540), but the £19,730 slice above £50,270 is taxed at 40% (£7,892). Her Class 4 bill is 6% on the slice up to £50,270 (£2,262) plus 2% on the slice above it (£394.60). Sophie, entirely inside the basic-rate band, pays 20% on her £17,430 of taxable income and 6% Class 4 on the same slice. The same £100,000 of profit therefore produces two very different bills — £18,088.60 and £4,531.80 — purely because of the split. That is why agreeing the split deliberately, rather than defaulting to 50/50, is a real tax decision.
Frequently Asked Questions
Does the partnership itself pay any tax?
No. A traditional partnership pays no Income Tax or corporation tax itself. The profit is divided between the partners, and each partner pays Income Tax and National Insurance on her own share through Self Assessment. (A limited liability partnership, or LLP, is taxed the same way for its members, even though it has a separate legal identity.)
What if we have no written partnership agreement?
The Partnership Act 1890 applies by default: profits are shared equally between partners, regardless of who brought in more work or money. That equal split also decides your tax bills. A written agreement lets you choose a different split and protects you if a partner leaves, so it is worth putting in place before profits grow.
Do we each need our own tax return?
Yes — two layers of returns. The nominated partner files one partnership return (SA800) reporting the total profit, and every partner files her own personal Self Assessment return reporting her share. Both are due by 31 January online for the same tax year, and both attract penalties if late.
Should our partnership become a limited company instead?
Not automatically. A company pays corporation tax at 19% on profits up to £50,000 and 25% above £250,000, which can look cheaper than Income Tax plus National Insurance at higher profits. But a company brings accounts, filing duties and the cost of extracting money as salary or dividends, and you lose the simplicity of partnership tax. Get advice based on your actual profit level before switching.
Conclusion
Business tax for women-led partnerships in 2026/27 comes down to one idea: the partnership itself pays nothing, and each partner is taxed on her agreed share as if it were her own self-employed income. Agree the split in writing, deduct expenses before splitting, set aside 20–25% of each share as you go, and diary both layers of deadlines — the partnership return and every partner’s personal return. Do those things and partnership tax becomes a predictable cost, not a January shock, leaving you free to grow the business you built together.
This guide is general information for 2026/27, not personal tax advice. Rates can change at fiscal events, so check GOV.UK or speak to a qualified accountant before making decisions that depend on exact figures.
