UK tax calculators
Free interactive calculators for take-home pay, self-employed tax, Corporation Tax, dividends, director pay, VAT and employment costs.
Resources
Practical resources for business owners
The reference material we find ourselves sending to clients most often — dates, checklists and plain-English explanations.
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Where to start
Frequently asked questions
The questions we are asked most often about accountants, limited companies, VAT, tax and payroll.
Blog and guides
Longer articles on tax, accounts, bookkeeping and running a business in North Lincolnshire.
Our services
What we do, what is included and how each service works in practice.
Key dates
The UK tax year at a glance
- 5 April
- End of the UK tax year for individuals and sole traders.
- 31 May
- Deadline to give employees their P60 for the previous tax year.
- 6 July
- Deadline for filing P11D forms for taxable benefits.
- 31 July
- Second payment on account for Self Assessment is due.
- 5 October
- Deadline to register for Self Assessment for the previous tax year.
- 31 October
- Paper Self Assessment tax return deadline.
- 30 December
- Deadline to file online if you want tax collected through your tax code.
- 31 January
- Online Self Assessment deadline, balancing payment and first payment on account.
Company deadlines depend on your own year end: accounts are normally due at Companies House nine months after the year end, and Corporation Tax is payable nine months and one day after it.
Checklist
Records worth keeping
- Sales invoices and receipts, in date order or digitised
- Purchase invoices and expense receipts, including small cash items
- Bank and credit card statements for every business account
- Loan, lease and hire purchase agreements
- Payroll records, including starter and leaver paperwork
- Mileage logs where vehicle costs are claimed
- Stock counts at the year end, if you hold stock
- Correspondence from HMRC and Companies House
Records generally need to be kept for six years, and longer where an enquiry is open.
Reading
Recent guides
Tax
Do I need to file a Self Assessment tax return?
Side income, rental profit, dividends or a first year of self-employment — here is how to work out whether HMRC expects a return from you.
11 September 2026 · 6 min read
Read article
Business Advice
How to set up a limited company: a step-by-step guide
Incorporating takes about fifteen minutes. Getting the set-up right so it does not cause problems in year two takes a bit longer — here is the order to do it in.
9 September 2026 · 7 min read
Read article
Tax
HMRC late filing and late payment penalties explained
Penalties escalate quickly and quietly. Here is what each one costs, when interest starts, and what to do if you already have a notice.
7 September 2026 · 6 min read
Read article