Sole Trader Tax Companion

The tax you owe,
known — not guessed.

Enter two figures. See exactly what to set aside, and exactly when to pay it.

Watch it work ↓
Start Sharp
Sole Trader Tax Companion
TAX YEAR · 2026/27
YOUR FIGURES
Business income
£ 52,000
Allowable expenses
£ 9,000
Taxable profit
£43,000
WHAT TO SET ASIDE
Total for the year
£7,912
Income Tax + National Insurance
Income Tax
£6,086
Class 4 National Insurance
£1,826
Class 2 National InsuranceVoluntary — £0 unless you opt in
£0
PLANNING FOR PAYMENTS ON ACCOUNT

Your bill is over £1,000, so HMRC collects next year's tax in advance — each payment on account is 50% of your Income Tax & Class 4 NIC.

Balancing payment (this year)
£7,912
First payment on account
£3,956
Total due by 31 Jan 2028
£11,868
Second payment on accountDue 31 Jul 2028
£3,956
An estimate to help you plan, not tax advice. © Start Sharp 2026

Know exactly what
to set aside.

£0
for the year — Income Tax & National Insurance, worked out for you
The breakdown, if you want it
£0
Income Tax
£0
National Insurance
£0
Taxable profit

Every figure worked out for you, down to the penny — so there are no surprises.

And exactly
when to pay.

31 Jan 2028
£0
Balancing payment + 1st on account
31 Jul 2028
£0
2nd payment on account

No scramble in January. You'll have known for months.

Know before
you owe.

Get the Sole Trader Tax Companion Payments on account, more than one income source, or want it done for you? Talk to Mel →

An estimate to help you plan — not tax, accounting or financial advice. Based on the UK 2026/27 tax year; your own position may differ.