Let us take the stress out of Self Assessment
Get your tax return sorted by experts for only £200 £100+VAT!
Take the stress out of Sole Trader Accounting, for just 1%+VAT of your money earned. No monthly subscriptions! With CrunchONE
Boost your business finances with our Ltd Company packages! Award-winning software with support from expert accountants

Didn’t catch our live e-commerce webinar?

No worries! Watch now for a full replay and soak in the wisdom from top industry leaders!

SA104 Form: Mastering the Partnership Tax Tango!

image of a hand filling out a form
Picture of crunch software on mobile

Professional Bio Templates & Examples

Create a compelling professional narrative for a proper, attention-grabbing introduction.
Website bios
Speaker intros
Professional Profile

Ah, partnership business - where collaboration meets the joys of tax forms! Welcome to our guide to the SA104 form, a must-have for partners weaving their way through of self-assessment tax returns. 

This nifty document is your golden ticket to clearly communicating your share of the partnership pie – be it profits, losses, or income – to the ever-watchful eyes of HMRC.

Heads up, this article is a bit like tax forms themselves - not sexy, but it gets the job done! After reading it you’ll be fully 101’d on form SA104 and ready to tackle the tax titan of business partner filing.

What is a SA104 form?

The SA104 form is essential for partners in business, complementing your self-assessment tax return. It allows you to clearly report your share of income and losses from the partnership to HMRC.

It's designed to ensure that your individual contribution and financial outcomes within the partnership are accurately represented and taxed appropriately.

The SA104 is exclusively for individual partners' use, while the partnership as a whole is required to file the SA800 form.

Do I need to complete an SA104 form?

If you received any share of profits, losses, or income from a partnership business during the tax year, you must complete an SA104.  As well as a separate Partnership Tax Return with an SA800 form.

All partners share responsibility for its submission, with each facing a potential £100 penalty for late filing of the Partnership Tax Return.

You are required to fill out an individual form for every partnership you were involved in, as well as for each distinct business operated under those partnerships.

How to complete an SA104 form

You can complete the SA104 form online or on paper. Let’s look at the paper version first. 

You download the SA104 form here

Having your Partnership Tax Return (SA800) at hand is beneficial when you begin, as it provides a summary of your earnings in the Partnership Statement.

As we mentioned, for each partnership you were part of, you need to complete a separate form for every business involved.

If a single partnership issued multiple SA800 statements, you should complete a separate SA104 for each, detailing the information from each respective SA800.

Every partner must be notified of their specific share of profits and losses and then include this information in their personal Self Assessment tax return.

If you use the paper form you must submit it, by downloading it and completing it manually, before the paper tax return filing date of Oct 31st.

If you file online, there will be an option to add the SA104 when you complete your Self Assessment on HMRC’s website. And the deadline for online submission is extended Jan 31st. 

If all this sounds confusing, don’t panic! Using Crunch’s affordable Self Assessment Service will get your complete tax return handled by expert accountants. So you can forget about tax admin, and sit back and chill : )

SA104S vs SA104F

When it comes to the SA104 form, partners in a business need to understand the distinction between two variants: SA104S and SA104F

The SA104S, known as the 'Short' form, is tailored for simpler partnership circumstances, where income and deductions are straightforward and less detailed information is required. 

On the other hand, the SA104F, or 'Full' version, is designed for more complex partnership situations. This form demands a comprehensive breakdown of income, expenses, and deductions. 

Choosing the right form depends on the specific financial intricacies of your partnership and ensures that all relevant financial details are accurately reported to HMRC.

Tax harmony for your business partnerships

So, you’ll likely agree - it’s not the most seductive subject. But in the grand finale of our SA104 saga, hopefully you can see that mastering these forms is your ticket to tax triumph. 

Choose wisely between SA104S or SA104F, and dance through tax season with flair, dodging penalties with ease. Keeping your partners happy and your business tax compliant.

And remember, for a dash of magic and zero stress, Crunch's wizardry in accounting is just a spell away!

Didn’t catch our live e-commerce webinar?

No worries! Click below for a full replay and soak in the wisdom from top industry leaders!
Dive into e-commerce basics
Expert industry insights
Practical tips and savvy tricks

Speak to an accounting expert

If you're unsure what level of support you need, our friendly team are on hand to help you pick the right package for you.
Self Assessment tax returns done for you, from just £200 £100+VAT
Take the stress out of Sole Trader Accounting, for just 1%+VAT of your money earned. No monthly subscriptions! With CrunchONE
Boost your business finances with our Ltd Company packages!
Award-winning software
with support from expert accountants
Share this post
James Waller
Content Specialist
Updated on
December 8, 2023

Knowledge Hubs

Take control of your accounts, today

Crunch’s effective software package includes being able to talk to an expert client manager and a Chartered Certified Accountant. You can count on Crunch to make you productive and profitable.
Picture of crunch software on mobile

Professional Bio Templates & Examples

Create a compelling professional narrative for a proper, attention-grabbing introduction.
Website bios
Speaker intros
Professional Profile

Professional Bio Templates & Examples

Create a compelling professional narrative for a proper, attention-grabbing introduction.
Website bios
Speaker intros
Professional Profile
Picture of crunch software on mobile

Didn’t catch our live e-commerce webinar?

No worries! Click below for a full replay and soak in the wisdom from top industry leaders!
Dive into e-commerce basics
Expert industry insights
Practical tips and savvy tricks
Pro Tip
Boost your business finances with our Ltd Company packages!

Award-winning software with support from expert accountants

Pro Tip
Take the stress out of Sole Trader Accounting

Just 1%+VAT of your money earned. No monthly subscriptions! With CrunchONE

Pro Tip
Get 50% off your Self Assessment

Get your tax return sorted by experts for only £100+VAT!

Pro Tip
Using cloud-based accountancy software to manage your finances gives any small business a big advantage!

At Crunch we provide affordable cutting-edge, easy-to-use software with real human support from expert chartered accountants. That’s probably why 81% of our clients would recommend Crunch.

Pro Tip
Did you know - you have access to a Chartered Certified accountant for free on our paid subscriptions?

Book a call with our one accountants and get your questions answered. Just £24.50 +VAT for Crunch Free users.

Pro Tip
Get 50% off your Tax Return!

Crunch’s Self Assessment service provides an expert accountant to complete, check, and file your Self Assessment for you for just £100 +VAT.

Pro Tip
Did you know - We have a free plan that is great for sole traders and limited companies?

Why not see for yourself? It’s simple and easy to use and 100% free.