Tools

UK tax and accountancy calculators

Quick planning tools for common small-business, side-hustle, landlord and marketplace questions.

Estimate taxable side-hustle profit and how much UK tax to set aside when you also have PAYE income.

Compare the £1,000 trading allowance with actual expenses for UK side income or sole trader income.

Check a likely Making Tax Digital for Income Tax start date using sole trader and property income.

Check whether UK VAT registration may be required based on rolling taxable turnover and expected next-30-day sales.

Estimate a rough accountant fee band based on business type, VAT, MTD, bookkeeping quality and number of income streams.

Niche tools

Calculators for creator and AI side hustles

These tools match how specific niches think about money: retainers, samples, payouts, memberships, refunds, platform fees and subscriptions.

Estimate client-fee profit for AI agencies using setup fees, retainers, software, contractors and other delivery costs.

Estimate profit for prompt packs, templates, printables, KDP, AI art and other digital products.

Track cash fees, gifted product value, usage rights and creator costs for UGC and influencer campaigns.

Turn TikTok Shop commission, samples, creator payouts, returns and content costs into accountant-ready figures.

Estimate monthly paid community profit from members, subscriptions, platform fees, moderators and software.

Estimate planning profit for online courses, paid newsletters, sponsorships, payment plans and refunds.