Insights
The Isaacs & Co blog
Practical tax, accountancy and business guidance from George and the team.
CIS Subcontractors: How to Claim Back Tax Deducted Under the Construction Industry Scheme 27 October 2026
How self-employed CIS subcontractors get credit for tax deducted by contractors, through Self Assessment, and what to check on your statements and expenses.
Read more about CIS Subcontractors: How to Claim Back Tax Deducted Under the Construction Industry Scheme → Landlord Tax Returns: What to Declare and Which Expenses You Can Claim 20 October 2026
A plain guide to the property pages of your Self Assessment return: what counts as rental income, which expenses you can claim, and how mortgage interest works.
Read more about Landlord Tax Returns: What to Declare and Which Expenses You Can Claim → Management Accounts vs Statutory Accounts 13 October 2026
One set of accounts is a legal obligation. The other tells you how the business is actually doing. Why most growing businesses need both.
Read more about Management Accounts vs Statutory Accounts → Making Tax Digital for Landlords: The Rules 6 October 2026
Rental income counts gross, before a single expense. What that means for landlords with portfolios, joint ownership or a side business alongside the rent.
Read more about Making Tax Digital for Landlords: The Rules → Making Tax Digital Deadlines: 2026, 2027, 2028 29 September 2026
£50,000 from April 2026, £30,000 from 2027, £20,000 from 2028. Which wave you are in, what you have to send HMRC and when.
Read more about Making Tax Digital Deadlines: 2026, 2027, 2028 → Self-Assessment Checklist: Documents You Need 22 September 2026
Everything you need to hand before you start - sorted by whether you are employed, self-employed, a landlord or a director. Gather it in October, not January.
Read more about Self-Assessment Checklist: Documents You Need → How to Avoid the 60% Tax Trap on £100k+ Income 15 September 2026
Between £100,000 and £125,140 every extra pound costs 60p in tax. The planning that pulls your income back below the line, and what each option is worth.
Read more about How to Avoid the 60% Tax Trap on £100k+ Income → How to Calculate Your Personal Allowance 8 September 2026
The personal allowance is not fixed. Above £100,000 it shrinks by £1 for every £2 you earn - here is the formula, and what you keep at each income level.
Read more about How to Calculate Your Personal Allowance → Who Needs to File a Self-Assessment Tax Return? 1 September 2026
Self-employment, dividends, rental income, a capital gain, Child Benefit. The full list of triggers, including the ones people routinely miss.
Read more about Who Needs to File a Self-Assessment Tax Return? → Setting Up Payroll for Your Small Business (UK Guide) 18 August 2026
Hiring your first employee or paying yourself as a director? Here is how to set up payroll, when to register for PAYE, and the most tax-efficient salary to take.
Read more about Setting Up Payroll for Your Small Business (UK Guide) → How to Submit a VAT Return Under Making Tax Digital 11 August 2026
VAT returns are routine, but small mistakes cost you. Here is how to submit a return under Making Tax Digital step by step, plus the common errors to avoid.
Read more about How to Submit a VAT Return Under Making Tax Digital → R&D Tax Credits Explained: Could Your Business Claim? 4 August 2026
R&D tax credits are one of the most generous and most overlooked reliefs available. Your business may qualify without realising it. Here is who can claim and how.
Read more about R&D Tax Credits Explained: Could Your Business Claim? → How to Register for VAT in the UK: Small Business Guide 28 July 2026
VAT registration for UK small businesses: when you have to register, when it is worth doing voluntarily, and the five steps to getting it done with HMRC.
Read more about How to Register for VAT in the UK: Small Business Guide → How to Complete Your Self-Assessment Tax Return: A Step-by-Step Guide (UK) 21 July 2026
Dreading your Self Assessment? It is more manageable than it looks. Here is who needs to file, the deadlines, the expenses you can claim, and how to do it step by step.
Read more about How to Complete Your Self-Assessment Tax Return: A Step-by-Step Guide (UK) → Bookkeeping vs Accounting: What Is the Difference (and Do You Need Both)? 14 July 2026
Bookkeeping and accounting are not the same thing. Here is what each one actually does, whether your small business needs both, and what bookkeeping typically costs.
Read more about Bookkeeping vs Accounting: What Is the Difference (and Do You Need Both)? → Making Tax Digital for Income Tax: Deadlines, Thresholds and What to Do Now 13 July 2026
MTD for Income Tax is live and the first quarterly update is due 7 August 2026. Who is in scope, the deadlines, and what to do if you have not started.
Read more about Making Tax Digital for Income Tax: Deadlines, Thresholds and What to Do Now → Do You Need an Accountant When Starting a Limited Company? A Startup Guide 7 July 2026
Starting a limited company? From Companies House filings to Corporation Tax, the admin adds up fast. Here is what an accountant does for a startup, and when to hire one.
Read more about Do You Need an Accountant When Starting a Limited Company? A Startup Guide → Sole Trader vs Limited Company in the UK: Which Is Right for Your Business? (2026) 30 June 2026
Sole trader or limited company? The right structure affects your tax, your liability and your take-home pay. Here is how to choose the best fit for your business.
Read more about Sole Trader vs Limited Company in the UK: Which Is Right for Your Business? (2026) → How to Find a Good Accountant for Your Small Business in Manchester (2026 Guide) 25 June 2026
Choosing the right accountant can save your small business time, money and stress. Here's what to look for, the questions to ask, and how to find a good one in Manchester.
Read more about How to Find a Good Accountant for Your Small Business in Manchester (2026 Guide) → Dividend Planning and Documentation 26 May 2026
Dividends have to come out of profits, and the paperwork has to exist. What to check before you declare one, and what happens if you don’t.
Read more about Dividend Planning and Documentation → Tax-Efficient Pension Planning for Company Directors 19 May 2026
Company pension contributions cut taxable profits and build your retirement pot at the same time. How directors can make use of both effects.
Read more about Tax-Efficient Pension Planning for Company Directors → Why Management Accounts Matter 5 May 2026
Statutory accounts tell you what happened last year. Management accounts tell you what is happening now — and that is what decisions need.
Read more about Why Management Accounts Matter → Understanding HMRC Compliance Checks 28 April 2026
Most compliance checks are routine, but they still need handling properly. Why HMRC picks a business, what they ask for, and how to respond.
Read more about Understanding HMRC Compliance Checks → Tax Planning Strategies for SMEs 21 April 2026
Tax planning is what you do during the year, not what you do when the bill lands. Practical moves for owner-managed businesses.
Read more about Tax Planning Strategies for SMEs → Expense Management for Growing Businesses 14 April 2026
As a business grows, spending gets harder to see. How to keep expenses recorded, categorised and claimable without drowning in receipts.
Read more about Expense Management for Growing Businesses → The £100k Tax Trap Explained 10 March 2026
Earn just over £100,000 and your Personal Allowance starts disappearing, £1 for every £2. Why the effective rate spikes, and what can be done about it.
Read more about The £100k Tax Trap Explained → Payments on Account in Self Assessment 3 March 2026
The bill nobody expects: HMRC asking for next year’s tax in advance. Why it happens, how it’s calculated, and when you can ask for it to be reduced.
Read more about Payments on Account in Self Assessment → Capital Allowances and Business Asset Relief 24 February 2026
Buy equipment for the business and you may be able to deduct the whole cost from taxable profits in the same year. What qualifies, and how to claim it.
Read more about Capital Allowances and Business Asset Relief → Cash Flow Forecasting for Small Businesses 17 February 2026
Profitable businesses still run out of money. A forecast is how you see it coming — what to put in one, and how often to revisit it.
Read more about Cash Flow Forecasting for Small Businesses → Allowable Business Expenses for Companies 10 February 2026
The “wholly and exclusively” rule decides what you can claim. What qualifies, what doesn’t, and where directors most often get it wrong.
Read more about Allowable Business Expenses for Companies → Corporation Tax Guide for UK Limited Companies (2025/26) 3 February 2026
Rates, marginal relief, and the associated companies rule that quietly divides your thresholds. What every director should know before year end.
Read more about Corporation Tax Guide for UK Limited Companies (2025/26) → Salary vs Dividends for Company Directors 27 January 2026
Two ways to pay yourself, taxed very differently. How the split works, and why most directors end up taking some of each.
Read more about Salary vs Dividends for Company Directors → Director’s Loan Accounts: Rules and Risks 11 January 2026
Take more out of the company than you put in and a clock starts running. What an overdrawn loan account costs, and the deadline that triggers the charge.
Read more about Director’s Loan Accounts: Rules and Risks →