Guides to help you keep more of what you earn

Plain-English articles, free calculators, a Making Tax Digital hub and the key dates every UK business owner should have in the diary.

From the blog

Latest guides & insights

Tax

Salary vs dividends: the most tax-efficient split for 2026/27

How directors should pay themselves this tax year to legally minimise their bill.

6 min read · May 2026
Making Tax Digital

MTD for Income Tax: what sole traders must do before April 2026

A plain-English checklist to get your records ready for the new rules.

5 min read · Apr 2026
Growth

9 allowable expenses UK small businesses forget to claim

From home-office costs to mileage — the deductions that quietly add up.

7 min read · Mar 2026
Contracting

IR35 in 2026: a contractor's guide to staying compliant

What inside and outside IR35 really mean, and how to evidence your status.

8 min read · Mar 2026
VAT

Should you register for VAT voluntarily? The pros and cons

Why some businesses register below the threshold — and when it pays off.

6 min read · Feb 2026
Startups

SEIS & EIS explained: raising investment tax-efficiently

How the schemes work and how founders get advance assurance.

9 min read · Feb 2026
Free calculators & tools

Crunch the numbers in seconds

Handy estimators to plan ahead — then talk to your accountant to make them real.

Take-home pay calculator

Estimate your net income as a sole trader, contractor or company director after tax and NI.

Try it

VAT calculator

Add or remove VAT at the standard rate and check whether you're nearing the registration threshold.

Try it

Dividend tax estimator

See the tax due on your dividends for 2026/27 and find the most efficient salary-dividend mix.

Try it
Making Tax Digital hub

Everything you need for MTD, in one place

Making Tax Digital for Income Tax begins phasing in from April 2026 for the self-employed and landlords. Here's what's changing and how IGI keeps you ahead of it.

  • Who needs to comply, and when
  • Quarterly updates vs the year-end declaration
  • Choosing HMRC-recognised software (included with IGI)
  • A simple checklist to get your records ready
Ask us about MTD

Are you MTD-ready?

If you're self-employed or a landlord with income over the threshold, the new rules will apply to you. IGI clients are ready by default — the software is included and your accountant handles the quarterly filing.

  • Digital records kept automatically
  • Quarterly submissions handled for you
  • No new software to buy
Get MTD-ready
Key tax deadlines

Dates worth putting in the diary

The main UK deadlines for 2026 — your IGI accountant tracks them all for you, but it helps to know.

DeadlineDateWho it's for
Self Assessment online return & payment31 JanSole traders & individuals
Second payment on account31 JulSelf Assessment taxpayers
Corporation Tax payment (typical)9m + 1dLimited companies
Company accounts to Companies House9 monthsLimited companies
Confirmation statementAnnuallyLimited companies & LLPs
Quarterly VAT return (MTD)1m + 7dVAT-registered businesses
PAYE/payroll RTI submissionOn or before paydayEmployers
New tax year begins6 AprEveryone
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