UK Self Assessment · SA100 · prepare free · pay when you file
Self Assessment Software — file your SA100 online to HMRC
File your SA100 online to HMRC with dedicated Self Assessment software. SA100 to SA110, partnership SA800, calculation and filing desk. Prepare free — pay from £39 + VAT when you file.
SA100–SA110
SA800 partnership
Pay per tax year
Accountant credits
In short
Self Assessment Software is dedicated UK SA100 production for accountants and individuals. Prepare free — pay when you file. Individuals from £39 per tax year; accountant filing credits from £179 for 10 (ex VAT). SA100–SA110 and partnership SA800 — not bookkeeping, CT600, payroll or MTD quarterly.
Why us
Prepare free. Pay when you file.
Four facts that define the Self Assessment desk — before you pick a path or a price.
- Prepare free No card to start. Draft the whole return; pay only when that tax year is filed.
- Pay when you file Employment £39 · Self-employed & property £49 · Partnership £69 (ex VAT) per tax year.
- Accountant credits One credit = one client tax year. Unlimited practice logins. Packs from £179 for 10.
- SA desk only SA100–SA110 and SA800. Not invoices, bank feeds, corporation tax or payroll.
Who it’s for
Choose how you file
Same Self Assessment desk. Two ways to buy — pick the path that matches your job.
For accountants
File for clients with credits
Unlimited staff logins. Prepare every client return free — use one credit when you file that tax year. Credits from £179 for 10 (ex VAT).
For individuals
File your own SA100
Employment & investment £39 · Self-employed & property £49 · Partnership £69 — all + VAT, per tax year. Software only: not an accountant and not bookkeeping.
Pricing · individuals
I file my own return
Three individual plans. Prepare free — charge at file. All prices ex VAT.
PAYE, savings, dividends
Employment & investment
If your income is employment, savings or dividends.
£39+ VAT
Per tax year · £46.80 inc VAT
- Full SA100–SA110 desk for this tax year
- Employment (SA102 + elected-office variants) · savings & dividends
- SA101, SA106–SA109 when they apply
- Calculation, SA302-style estimate & HMRC filing
Sole traders and landlords
Self-employed & property
If you trade or let UK property — including mixed income.
£49+ VAT
Per tax year · £58.80 inc VAT
- Full SA100–SA110 desk for this tax year
- Self-employment (SA103 / Lloyd’s SA103L) & UK property (SA105)
- Employment & investment pages if mixed
- Capital gains (SA108) and other pages when needed
Partners and SA800 path
Partnership
If you need a partner’s share or the SA800 path.
£69+ VAT
Per tax year · £82.80 inc VAT
- Full SA100–SA110 desk for this tax year
- Partner’s share (SA104) · SA800 pack (TP/PS, SA801–804)
- Self-employment & property on the personal return if needed
- Calculation, SA302-style estimate & HMRC filing
Pricing · accountants
I file for clients
Filing credits for practices. One credit = one client tax year. Unlimited logins.
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 · For accountants · Need more than 100? Contact us
How it works
File your Self Assessment in four simple steps
From free account to HMRC filing. No software to install — everything is online and guided.
-
1
Create an account
Register free — practice or individual. No card to start.
-
2
Enter your figures
SA100 and the supplementary pages that apply (employment, trade, property, partnership).
-
3
Check the calculation
Preview tax due, SA302-style estimate and detailed schedule before you pay.
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4
Pay and file
Pay for that tax year (or use a credit), then send from the filing desk.
Inside the product
The Self Assessment return hub
Every client year looks like this: identity, tax year, status, then six steps from personal details to HMRC file.
Scope
What Self Assessment Software is not
Clear scope is how customers and search engines trust us. Buy the right job elsewhere — keep the SA return here.
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
Common questions
Short answers on price, credits, MTD and what we are not.
What is Self Assessment Software?
Dedicated UK Self Assessment software for the SA100 (and SA101–SA110) plus the partnership SA800 pack. Prepare free — pay when you file. It is not bookkeeping or a full practice suite.
How much does it cost?
Individuals: Employment £39, Self-employed & property £49, Partnership £69 per tax year (ex VAT), charged when you file. Accountants buy filing credits: 10 for £179, 25 for £349, 50 for £599, 100 for £999 (ex VAT).
How are accountants charged?
Practices buy credit packs. One credit = one client tax year at filing. Drafting never uses a credit. Unlimited staff logins are included.
Does it support Making Tax Digital for Income Tax?
Year-end Self Assessment is included today. MTD quarterly Income Tax updates are a later add-on — not in the current public price.
Is this a replacement for FreeAgent, Xero or Capium?
No. Keep bookkeeping and practice suites for invoices, bank feeds, CT and payroll. Use Self Assessment Software for dedicated year-end SA100 production.
Start free
Prepare your Self Assessment now. Pay when you file.
Create an account with no card. Employment from £39, sole trader £49, partnership £69 — or accountant credits from £179.