SA100–SA110, partnership SA800, calculation, SA302-style reports and filing. That is our product.
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Market
Compare Self Assessment Software with TaxCalc and Capium
We are dedicated Self Assessment. Capium and TaxCalc are often bought as suites. FreeAgent is bookkeeping. Use the page that matches the job you are buying.
In short
Self Assessment Software sells prepare-free year-end SA: individuals from £39 per tax year, accountant credits from £179 for 10. Compare us with TaxCalc and Capium when you want published SA pricing without a full practice suite.
Pick the job you are buying
Different products win different jobs. Buy the desk that matches what you need this season.
Bookkeeping + CT + payroll + SA in one vendor. Capium-style suites fit that brief — we do not.
TaxCalc when you also need CT, accounts or MTD quarterly products alongside SA.
Invoices and bank feeds. Keep FreeAgent, Xero or QuickBooks — then file SA here if you want year-end depth.
Side by side
Dedicated SA vs the market
Self Assessment Software vs Capium
Capium is an all-in-one practice suite. Self Assessment Software is dedicated SA100 production. If you only need the individual tax return, you should not have to buy bookkeeping, CT600 and payroll to get there.
Self Assessment Software vs TaxCalcTaxCalc is a volume tax-production tool for UK firms. We sell pay-per-filing Self Assessment — credits for practices and individual returns from £39 — without accounts production or practice management.
Annual cost snapshot (ex VAT)
Prices checked September 2026. This DIY snapshot uses TaxCalc Individual 6 (£42, family/DIY). TaxCalc practice pricing starts at Individual 12 (~£187/year) — see vs TaxCalc.
Full pricing · vs TaxCalc (practice) · vs Bookkeeping · Features
FAQs
Compare — questions answered
Who should compare Self Assessment Software with TaxCalc?
Practices that want published Self Assessment pricing and are weighing TaxCalc’s entry bands against pay-per-filing credits with unlimited logins.
Who should compare with Capium?
Firms that only need SA production and do not want to buy a full Capium-style suite (bookkeeping, CT, payroll) to get the individual tax return.
Do you replace FreeAgent or Xero?
No. Those are bookkeeping products. We are the year-end Self Assessment desk. Many customers keep both.
Where are your live prices?
On Pricing: individuals from £39 per tax year when you file, and accountant credit packs from £179 for 10 (ex VAT). Prepare free — no card to start.
Pick the job
Capium, TaxCalc and FreeAgent are different products
If you need bookkeeping, a suite, or corporation tax, buy that product. Keep the year-end SA 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.
Start free
Prepare free. Pay when you file.
Employment £39 · Sole trader £49 · Partnership £69 (ex VAT). Accountant credits from £179. No card to start.