GoSimpleTax

GoSimpleTax is HMRC-recognised software for filling in and filing your own Self Assessment tax return. It’s free to try, and you only pay when you’re ready to submit - from £69.99 per tax year.

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At a glance

GoSimpleTax walks you through your Self Assessment return in plain English, works out your tax bill as you type and submits straight to HMRC. You can enter everything and see your estimated bill before paying anything.

£69.99

Free

To try - pay when you submit

Per tax year, on subscription

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What is GoSimpleTax?

GoSimpleTax is UK software for doing your own Self Assessment tax return without an accountant. You enter your income and expenses, it calculates your tax in real time, flags allowances and reliefs you might have missed, and files the return directly with HMRC. It’s fully HMRC-recognised and covers the pages most sole traders need, including self-employment, employment, property, partnership, foreign income and capital gains.

Is GoSimpleTax free?

Partly. You can create an account, enter your figures and see your estimated tax bill for free, with no card needed. You pay when you’re ready to submit the return to HMRC. The Individual plan costs £69.99 per tax year on a subscription, or £113.99 as a one-off without one.

Key features

Direct submission to HMRC from inside the software
Real-time tax calculation as you add figures
Over 100 tax-saving tips, with prompts for allowances and reliefs that apply to you
Automatic checks for missing details and inconsistencies before you file
Covers self-employment, employment, property, partnership, foreign income, trusts and capital gains
Unlimited income and expense entries
Integrations with FreeAgent, FreshBooks, SumUp and Xero
UK-based email support, Monday to Friday 9am to 5pm (seven days a week in January)

Pricing

Prices are per tax year and include VAT. The subscription price renews each year. The non-subscription price is a one-off.

Individual - £69.99 per tax year

The plan most sole traders need:

One Self Assessment return, submitted directly to HMRC
All the main supplementary pages, including self-employment and property
£113.99 without a subscription

Residency - £85.99 per tax year

For people who live abroad or have residency questions:

Everything in Individual
Residency form (SA109) and specialist residency support
£129.99 without a subscription

Partnership - £96.99 per tax year

For business partnerships:

Partnership return, with partners added at any time
Property income, foreign income, asset disposals and investments
£150.99 without a subscription

Filing for more than one person? Two returns cost from £119.99 a year and five from £203.99. Returns for previous tax years are £113.99 each.

Is GoSimpleTax MTD compatible?

Yes, through a partner app. GoSimpleTax’s own software is for the annual Self Assessment return. For Making Tax Digital for Income Tax, it offers an MTD plan through Coconut, an HMRC-recognised app that handles digital records, quarterly updates and the final declaration. The MTD plan is listed at £12.99 a month and you sign up through Coconut. If your qualifying income is under the MTD threshold, you can carry on filing a normal Self Assessment return with GoSimpleTax.

Pros and cons

Pros:

Free to try with no card - you only pay when you submit
HMRC-recognised, with direct filing
Plain-English questions and a real-time tax calculation
Tax-saving prompts built in
Covers most return types, including property, foreign income and capital gains
UK-based support team, including people with HMRC experience

Cons:

No free filing - you have to pay to submit
The one-off price (£113.99) is much higher than the subscription price
MTD for Income Tax is handled through a separate app, Coconut, at £12.99 a month
Support on the standard plans is by email
You do the return yourself - there’s no accountant checking it

Who is GoSimpleTax best for?

GoSimpleTax suits a sole trader who is comfortable doing their own return but wants more help than HMRC’s free service gives: plain-English questions, a live tax calculation and prompts for reliefs you might miss. Trying it costs nothing, so you can enter your figures and see your bill before deciding. If your income is over the MTD threshold, you’ll need its Coconut-based MTD plan or another MTD tool. If you’d rather hand the whole thing to an accountant, look at Taxfix instead.

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Frequently asked questions

Is GoSimpleTax free?

You can enter your figures and see your estimated tax bill for free, with no card needed. You pay when you submit - £69.99 per tax year on the Individual subscription plan.

Is GoSimpleTax recognised by HMRC?

Yes. GoSimpleTax is fully HMRC-recognised Self Assessment software and submits your return directly to HMRC.

Can I use GoSimpleTax if I have rental income as well as self-employment?

Yes. The Individual plan covers self-employment, employment, property, foreign income and capital gains pages in one return.

Does GoSimpleTax work with Making Tax Digital for Income Tax?

GoSimpleTax offers an MTD plan through Coconut, an HMRC-recognised app, at £12.99 a month. The standard GoSimpleTax product is for the annual Self Assessment return.

When is the Self Assessment deadline?

For the 2025 to 2026 tax year, online returns and any tax owed are due by 11:59pm on 31 January 2027. Miss the filing deadline and HMRC charges an initial £100 penalty.

Compare tax filing software for sole traders

GoSimpleTax is one option among several worth comparing. Browse the full Tax Filing Software directory to compare it against Taxfix, TaxCalc, HMRC’s free online service and other options.

Pricing and offers correct at time of publication. Always check the GoSimpleTax website for current pricing and promotional terms before signing up.