Free Business Tools & Calculators

Calculate your net pay after income tax, National Insurance, student loan and pension. Includes a bonus calculator and salary comparison.

Add or remove VAT at 20%, 5% or 0%. Includes a VAT threshold tracker and flat rate scheme comparison.

Calculate UK corporation tax with marginal relief. Includes a scenario planner and payment deadline calculator.

Find the most tax-efficient salary and dividend split for your limited company, including the personal allowance taper above £100,000.

Find out if and when you need MTD for Income Tax, download your quarterly deadlines to your calendar and follow a readiness checklist.

Work out statutory interest and £40 to £100 compensation on overdue invoices, then copy a ready-to-send chasing email.

Calculate statutory redundancy pay by age band, notice entitlement and the full package, including the £30,000 tax-free threshold.

See the real cost of hiring beyond salary: employer National Insurance, pension, holiday accrual, recruitment and overheads.

See the tax, National Insurance and student loan you save through pension salary sacrifice, your employer's saving, and the effect of the 2029 £2,000 cap.

Compare the full cost of in-house recruitment with agency fees, including hidden expenses and time costs.

Compare the cost of hiring a marketing agency with building an in-house team for your budget.

Check whether ChatGPT, Claude, Perplexity, Copilot and Google's AI can reach your site, fix your robots.txt and test what AI tools say about you.

Calculate return on ad spend, find your break-even ROAS by gross margin, and compare Google, Meta, TikTok and LinkedIn.

Calculate your LTV:CAC ratio and get a health score, CAC payback period and improvement simulator.

Compare your conversion rate with more than 20 industry benchmarks and see the revenue impact of improving it.

Work out a marketing budget and how to allocate it across channels for the best return.

Calculate CAC by channel, your LTV:CAC ratio and payback period, with optimisation tips.

Find conversion bottlenecks, calculate lost revenue and get stage-by-stage improvement tips.

Estimate your 2026/27 business rates in England with the new multipliers, Small Business Rate Relief and transitional relief.

Calculate your break-even point in units and revenue with an interactive chart, and model scenarios and profit targets.

Assess your business across five key areas and get a personalised growth roadmap.