One credit equals one client tax year when you file. Partners, seniors and juniors all sign in — logins never consume the pack.
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For accountants & practices
Self Assessment Software for accountants
Practice Self Assessment desk with unlimited logins. Buy filing credits, prepare client SA100s free, pay when you file. From £13.96 per return on 25 credits.
In short
Self Assessment Software is a practice SA100 desk with unlimited logins. Buy filing credits (10 for £179 to 100 for £999, ex VAT). Prepare every client return free; one credit covers one client tax year when you file. Not a suite — no bookkeeping, CT600 or payroll.
- Unlimited logins Whole practice, one org
- Prepare free No credit until you file
- From £9.99 Per filing on 100 credits
- SA desk only No suite lock-in
Why practices
Built for practices that only need Self Assessment
You should not buy bookkeeping, corporation tax or payroll to get a proper SA100 desk. File client returns with credits — staff seats are unlimited.
SA100–SA110, partnership SA800, combined calculation, SA302-style reports and an HMRC filing desk for every client in the organisation.
Not Capium-style lock-in. Not TaxCalc annual seats for a small book. Pay for filings when the season needs them.
How it works
How a practice files with credits
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1
Register the practice
Create an organisation and invite staff. Unlimited logins on one workspace.
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2
Prepare client returns
Draft SA100–SA110 and partnership returns free. Credits are not used while you prepare.
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3
Review with the client
Check the calculation, SA302-style estimate and schedule before you submit.
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4
File with one credit
Apply a credit for that client tax year and submit to HMRC. Amendments for that year are included.
Practice desk
What your team gets on the desk
Same forms and filing workflow as individuals — with a multi-client practice workspace.
- Multi-client workspace Add taxpayers, open tax years, and keep each client’s return isolated inside your organisation.
- SA100 to SA110 + SA800 Employment, self-employment, property, CGT, foreign, trusts and the partnership pack in one product.
- Calculation & reports Combined tax calculation, SA302-style estimate, detailed schedule, payment note and tax letter.
- Filing & approval Draft → review → approve → queue. Practices can send figures for client approval before filing.
Pricing
Accountant credit packs
List prices exclude VAT. Larger packs bring the cost per filing down. Full pack detail on the credits pricing page.
10 credits
Starter
First season or a small book — 10 filing credits
£179+ VAT
£17.90 each · £214.80 inc VAT
- 10 filing credits
- 1 credit = 1 client tax year
- Unlimited practice logins
- Credits valid 12 months
25 credits
Practice
Where most small practices start — 25 filing credits
£349+ VAT
£13.96 each · £418.80 inc VAT
- 25 filing credits
- 1 credit = 1 client tax year
- Unlimited practice logins
- Credits valid 12 months
50 credits
Volume
Steady year-round filing — 50 filing credits
£599+ VAT
£11.98 each · £718.80 inc VAT
- 50 filing credits
- 1 credit = 1 client tax year
- Unlimited practice logins
- Credits valid 12 months
100 credits
Firm
Large client books — 100 filing credits
£999+ VAT
£9.99 each · £1,198.80 inc VAT
- 100 filing credits
- 1 credit = 1 client tax year
- Unlimited practice logins
- Credits valid 12 months
Full credits page · Need more than 100? Contact us
Individuals
Filing only for yourself?
Individuals pay once per tax year on a personal plan. Practices buy credits. Same software either way.
PAYE, savings, dividends
Employment & investment
£39 + VAT
If your income is employment, savings or dividends.
View planSole traders and landlords
Self-employed & property
£49 + VAT
If you trade or let UK property — including mixed income.
View planPartners and SA800 path
Partnership
£69 + VAT
If you need a partner’s share or the SA800 path.
View planScope
What this practice desk does not include
Clear scope keeps filing credits on Self Assessment. Buy the right tool for the other jobs.
No invoices, bank feeds or VAT. Keep FreeAgent, Xero or QuickBooks.
No CT600, iXBRL or Companies House. Use dedicated corporation tax software for that.
Crunch includes a human. This is software. You stay responsible for the figures.
Year-end Self Assessment is included. Quarterly ITSA is a later add-on.
FAQs
Accountants — questions answered
How do filing credits work for accountants?
One credit equals one client tax year when you file. Prepare as many draft returns as you need without using a credit. The credit is consumed only at filing for that taxpayer year.
What do the packs cost?
List prices exclude VAT: 10 for £179 (£17.90 each), 25 for £349 (£13.96 each — most chosen), 50 for £599 (£11.98 each), 100 for £999 (£9.99 each). Credits are valid for 12 months from purchase.
Are staff logins limited?
No. Unlimited practice logins are included. Everyone in the organisation works in the same Self Assessment desk.
Is there a monthly subscription or taxpayer cap?
No monthly suite fee on the public credit packs, and no monthly taxpayer-cap subscription bands. You buy credits when you need filings.
Can I prepare returns before buying credits?
Yes. Register free, invite your team, and draft client returns with no card. Buy a credit pack when you are ready to submit.
Does it include MTD quarterly updates?
No. Year-end Self Assessment is included now. MTD quarterly updates for Income Tax are planned as a later add-on.
When should I stay on Capium or TaxCalc?
If you need CT600, iXBRL accounts, payroll or a full practice suite in the same login, stay on those products. Self Assessment Software is the SA desk only.
Prepare free
Prepare client returns first. Use a credit when you file.
Register the practice free, invite your team, and draft returns with no card. Buy credits when you are ready to submit.