Self-Assessments for Partners
Partnership and personal tax returns, prepared together and filed on time. As your appointed agent, we deal with HMRC for you.
Let SBX take care of your partnership self-assessment
At SBX, we fully understand that each partnership operates uniquely, with its own dynamics and distinctive contributions from each member. This flexibility allows for a more tailored profit distribution model, one that accurately reflects the individual contributions of every partner involved. Our self-assessment services are meticulously designed to meet the specific needs of each partner, ensuring that your financial returns are not only accurate but also optimised for your unique circumstances.
We conduct thorough annual reviews of your business expenses, diving deep into every detail to maximise your take-home pay and ensure that you benefit from all available reliefs, exemptions, and deductions. By entrusting us with the complexities of your partnership returns, you can free up valuable time and resources to focus on what you do best—growing your business and achieving your goals.
One partnership, several returns
The partnership files its own SA800 return, and each partner reports their share of the profits on a personal SA100 return. We prepare them together, so the figures always match and nothing gets filed twice.
Check your take-home pay.
A quick estimate of your net pay for 2026/27, after Income Tax and National Insurance.
Take-home earnings
Estimate your net pay after Income Tax and National Insurance.
The dates every partner should know
| Deadline | What it covers |
|---|---|
| 5 October | Register the partnership and each new partner for Self Assessment |
| 31 October | Paper returns for the tax year just ended |
| 31 January | Online SA800 and SA100 returns, plus any tax due |
| 31 July | Second payment on account, where one applies |
We prepare your returns well ahead of these dates, so you know what each partner owes months in advance. Switching takes one email. We do the rest.
Talk to chartered accountants in London & Slough.
SBX helps you stay compliant & keep more of what you earn with expert tax, accounts, and bookkeeping services.