Accounting & Tax Resources
Discover accounting and tax resources created for UK small businesses and e-commerce founders. Explore expert guides, blogs, and downloadable tools from The Calculator Guy to help you stay compliant and in control.
Deadlines and Penalties: What Happens If You File Your Self-Assessment Late?
What happens if I miss the Self-Assessment deadline? Learn what penalties HMRC charges, how daily fines work, and what to do if you're already behind.
How to Read Your Profit & Loss Like a Founder?
Learn how to calculate true Amazon FBA profit by including every fee, cost, and VAT adjustment. A clear guide teaching how to calculate your true…
Amazon FBA Fees vs True Profit: How to Calculate
Learn how to calculate true Amazon FBA profit by including every fee, cost, and VAT adjustment. A clear guide teaching how to calculate your true…
What Income Needs to be declared on Tax Return?
Not sure what income to declare on your Self-Assessment tax return? Learn which earnings count — from employment and property to crypto and dividends —…
Renters’ Rights Act 2025: What Landlords Need to Know
The Renters’ Rights Act 2025 ends Section 21 evictions and introduces new tenancy rules. Learn what’s changing and how landlords can prepare before May 2026.
VAT for Ecommerce Sellers Explained
Confused about VAT for your online store? Learn how VAT works for Amazon, Shopify, and other e-commerce platforms in 2025 — and how to stay…
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