When is my Self Assessment tax return due?

For online returns, the deadline is normally 31 January following the end of the tax year on 5 April. Paper returns are due earlier, by 31 October. Any tax owed is also usually due by 31 January. We manage these dates and file ahead of the deadline.

What are payments on account?

Payments on account are advance payments towards your next year's tax bill, usually due by 31 January and 31 July, if your bill is above a certain threshold. We calculate these for you so you know what to set aside.

What information do you need from me?

It depends on your circumstances, but typically details of your income (employment, dividends, self-employment, rental, interest), plus any expenses and reliefs. We give you a clear list so nothing is missed.

What happens if I file late?

HMRC charges an automatic penalty for filing late, even if you owe no tax, with further penalties and interest the longer it's outstanding. Filing on time avoids all of this — which is exactly what we manage for you.

Delivered through our accounting & compliance partners

Self Assessment Tax Return Filing

Your tax return, prepared and filed on time

Preparation and submission of your Self Assessment tax return to HMRC. Our accounting and compliance partners gather your income and details, claim the allowances and reliefs you're entitled to, and file on time — telling you clearly what to pay and when. Whether you're a director, sole trader or landlord, your return is handled accurately, with no last-minute scramble before the 31 January deadline.

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Every business is different. Speak with our accounting partners and get a clear, tailored quote — no obligation, no jargon, no hidden costs.

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How it works

Step 1: Gather your income and details

We collect everything needed for your return — employment and dividend income, self-employment or rental profits, interest, and any allowable expenses and reliefs — and let you know exactly what we need.

Step 2: Prepare and review your return

We prepare your Self Assessment tax return, calculate what you owe (or are owed), claim the allowances and reliefs you're entitled to, and review it with you before anything is submitted.

Step 3: File with HMRC and confirm what to pay

We file your return with HMRC on time and tell you clearly how much to pay and by when, including any payments on account — so there are no surprises in January.

Why choose Filing HQ for Self Assessment Tax Return Filing?

Filed on time: We track the 31 January online deadline and file ahead of it, so you avoid automatic late-filing penalties.
Nothing missed: All your income, allowable expenses and reliefs are accounted for, so your return is accurate and you don't overpay.
Clear on what to pay: We tell you exactly what's due and when, including payments on account, so there are no January surprises.
Director-friendly: If you take dividends and salary, we handle the interaction with your company's payroll and accounts so it all lines up.

A complete accounting & compliance suite

This is one part of everything our partners handle — from getting set up correctly to ongoing compliance and growth advisory. See all accounting & compliance services →

Frequently Asked Questions

When is my Self Assessment tax return due?: For online returns, the deadline is normally 31 January following the end of the tax year on 5 April. Paper returns are due earlier, by 31 October. Any tax owed is also usually due by 31 January. We manage these dates and file ahead of the deadline.
What are payments on account?: Payments on account are advance payments towards your next year's tax bill, usually due by 31 January and 31 July, if your bill is above a certain threshold. We calculate these for you so you know what to set aside.
What information do you need from me?: It depends on your circumstances, but typically details of your income (employment, dividends, self-employment, rental, interest), plus any expenses and reliefs. We give you a clear list so nothing is missed.
What happens if I file late?: HMRC charges an automatic penalty for filing late, even if you owe no tax, with further penalties and interest the longer it's outstanding. Filing on time avoids all of this — which is exactly what we manage for you.

Self Assessment Tax Return Filing

Why choose Filing HQ for Self Assessment Tax Return Filing?

A complete accounting & compliance suite

Frequently Asked Questions

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