Why would an employee need a Self Assessment?

Common reasons include earning over £100,000, receiving untaxed income such as savings interest or dividends above your allowances, the High Income Child Benefit Charge, or claiming higher-rate pension relief. TaxGo checks your documents and tells you what applies.

My benefits are already in my tax code — do I still include them?

Yes. Benefits in kind go on your return even if your tax code already collects some tax on them. TaxGo includes them and counts the tax your employer has already deducted.

How do I claim higher-rate relief on my pension?

Upload your pension statement or enter your personal contributions. TaxGo grosses them up and extends your basic-rate band, so the extra relief is reflected in your calculation.

Employees

Payslip, perks,pension.Handled.

Upload your P60, P11D and pension statement. TaxGo reads your employment income, benefits and other income, then works out what's left to pay — or what you get back.

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£49per return No upfront payment Private document storage Built for UK Self Assessment

Your documents

Illustrative

P60
Pay · £48,000
P11D
Company car benefit · £3,200
Pension statement
Contributions · £2,400 gross
Bank interest
Interest · £1,350

Your TaxGo return · 2025/26

Employment

Pay£48,000

Benefits in kind£3,200

Tax deducted£7,086

Pensions

Contributions (gross)£2,400

Savings

Interest£1,350

Estimated tax due£710.00

Illustrative 2025/26 estimate for England, Wales & NI.

What you'll need

The documentsTaxGo readsfor you.

PDF, photo or scan. Don't rename them, don't sort them. Just drop them in.

P60
Your pay and the tax your employer deducted for the year
P11D
Benefits in kind — company car, fuel, private medical, loans
Pension statement
Personal contributions to a relief-at-source pension
Other income
Bank interest, dividends or any other income outside your payslip

How TaxGo handles it

01
Benefits, valued properly
TaxGo extracts each benefit from your P11D and adds its taxable value to your employment income, line by line.
02
Pension relief you're owed
Higher-rate taxpayers can claim extra relief on personal pension contributions. TaxGo grosses up your contributions and extends your basic-rate band.
03
Other income, included
Savings interest, dividends or a bit of rental income — TaxGo reads the statements and taxes each type at the right rate.
04
Tax already paid, counted
Everything your employer deducted through PAYE is taken off, so you see the balance that's actually left to pay — or refund.

What we support

Covered.Properly.

If your return needs something TaxGo doesn't handle yet, we tell you before you pay.

Everything TaxGo supports →

Employment income (P60, P45)
Benefits in kind (P11D)
Personal pension contributions
Bank and building society interest
UK dividends
Gift Aid donations
Student loan repayments
High Income Child Benefit Charge

Common questions

Asked andanswered.

Common reasons include earning over £100,000, receiving untaxed income such as savings interest or dividends above your allowances, the High Income Child Benefit Charge, or claiming higher-rate pension relief. TaxGo checks your documents and tells you what applies.

Your tax return isn't going to do itself.

Actually, TaxGo gets pretty close.

Start my returnSee how it works