Knowledge centre
News, guides, and free downloads for small businesses and landlords
A free monthly newsletter with the latest news and tools for small businesses and landlords.
Latest small business news
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Renters’ Rights Act to start from 1 May 2026: guide for landlords
Section 21 eviction ban and limits on rent increases to start in May 2026.
13-minute read
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HMRC tax refund: what to do if you’ve paid too much tax
The self-employed can apply for a tax refund from HMRC if they’ve overpaid tax.
6-minute read
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Last posting dates for Christmas 2025
Find out how long you’ve got to post your orders to make it by Christmas.
2-minute read
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Autumn Budget 2025: tax rises for business owners?
Our tax predictions for the upcoming Budget.
15-minute read
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Major Companies House changes from 18 November
Identity verification will become mandatory for business owners by autumn 2025.
7-minute read
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Tax incentives for small businesses: major tax break on EMIs
Lifting the EMI cap means a major tax break for small businesses and their employees.
2-minute read
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Chancellor unveils plans to scrap ‘pointless paperwork’ for business
How Rachel Reeves hopes to ease the reporting and regulation requirements for UK firms.
3-minute read
Recent how-to guides and business tips
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13-minute read
Renters’ Rights Act to start from 1 May 2026: guide for landlords
Section 21 eviction ban and limits on rent increases to start in May 2026.
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8-minute read
How to amend a Self Assessment tax return
If you’ve made errors on your Self Assessment, here’s how to make a change.
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6-minute read
HMRC tax refund: what to do if you’ve paid too much tax
The self-employed can apply for a tax refund from HMRC if they’ve overpaid tax.
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11-minute read
HMRC penalties for late tax returns and late payment
HMRC penalties can come as a shock but you may be able to appeal.
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8-minute read
How to pay National Insurance when self-employed or running a business
Find out National Insurance rates and how to pay your contributions.
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6-minute read
Allowable expenses for landlords – what can you claim?
What expenses can landlords claim and how do you do it?
Top trending articles
Are you prepared for Making Tax Digital?
Making Tax Digital for VAT is already in place. But Making Tax Digital for income tax is coming from April 2026 – changing how small businesses and landlords file and pay tax. Make sure you’re prepared.
5-minute read
Making Tax Digital for business income tax
Making Tax Digital will affect how you pay income tax from 2026.
8-minute read
Making Tax Digital for landlord income tax: get ready for 2026 changes
Find out more on key dates, how to comply, and how to register.
8-minute read
The 9 best self-employed accounting software for 2025
3-minute read
Monzo’s built-in MTD tool: is it really this easy?
Free financial calculators and business tools
Whether you need to work out how much VAT to add to invoices or the profit margin on a new product, our free calculators are here to help you.
5-minute read
How to work out profit margin – profit margin calculator
4-minute read
What is ROI and how do you measure it? ROI calculator
7-minute read
How much is VAT? VAT calculator for businesses
Meet our experts
Our writers have a wealth of knowledge and experience writing for small business owners and landlords. Find out more about them here.
Catriona Fuller
Senior Copywriter
Catriona is a content and marketing professional with 12 years experience across the financial services, higher education, and insurance sectors.
Conor Shilling
Senior Copywriter
Conor is a professional writer with over 10 years experience across the property, small business, and insurance sectors.
Rosanna Parrish
Copywriter
Rosanna is a copywriter with over nine years experience. She specialises in side hustles – as well as all things freelance, social media, and e-commerce.
Zach Hayward-Jones
Content Executive
Zach is a copywriter at Simply Business with seven years of writing experience across entertainment, insurance, and financial services.
We create this content for general information purposes and it should not be taken as advice. Always take professional advice. Read our full disclaimer