UK self-employedTax year ready (Apr–Mar)Quick estimateNo spreadsheets7-day trial

Driving instructor tax calculator.Get a quick estimate — then track it properly in InstructorOS.

Use the estimator below to get a rough idea of what you should set aside for tax. Then, if you want it accurate all year (with exports for your accountant), InstructorOS tracks your income and expenses automatically.

Important:
This is an estimate for guidance only and not tax advice. Your actual liability depends on your circumstances and HMRC rules.
Estimate now • Track properly later • Exports for accountants • Mobile-friendly
Quick “set aside” figure
Get a rough monthly or yearly estimate in seconds.
Profit before tax
See what you’re actually making after expenses.
Track it inside InstructorOS
Log lessons + expenses and keep your estimate updated all year.
InstructorOS preview
Mobile & desktop
InstructorOS dashboard preview

Quick tax estimator for UK driving instructors

Enter your turnover and expenses. We’ll show your profit and a rough “tax pot” amount to set aside. (You can tweak the % to match your comfort level.)

Period
£

Lessons income before expenses.

£

Fuel, insurance, repairs, training, etc.

Set-aside % (tax pot)
Not advice — just a buffer you choose.
%
Track this automatically (7-day trial)
Want accuracy? InstructorOS updates this estimate as you log lessons + expenses.
Your estimate (monthly)
Based on the numbers entered — guidance only.
Quick view
Income
£3,500
Expenses
£900
Profit (before tax)
£2,600
Suggested set-aside (25%)
£650
This is a buffer amount to help you plan cash flow.
Profit after set-aside
£1,950
What’s left after putting the buffer aside.
Want this to be accurate (and effortless)?

This page is a quick estimate. InstructorOS keeps your numbers updated all year as you log lessons and expenses — then exports clean summaries for your accountant.

HMRC's own calculators are estimates too — the goal is planning, not perfection.

Built for UK driving instructors (not generic bookkeeping)

InstructorOS is designed around the real way ADIs work: lots of small transactions, unpredictable costs, and a constant need to know what you’re actually taking home.

Real-time visibility

Keep an eye on profit and tax buffer as you go — not just at year-end.

Expenses that match real life

Fuel, repairs, insurance, training — tracked consistently in one place.

UK tax-year view

Built around Apr–Mar so you’re always looking at the correct period.

Cash flow planning

Know what to set aside so tax doesn’t nuke your month.

Clean exports

Export summaries your accountant can use without reformatting.

No spreadsheet admin

No formulas. No broken totals. No mess.

Stop guessing. Start tracking.

£15/month after your 7-day trial. Keep your numbers clean and your tax stress low.

Tax tracking included

7-day trial
£15
/ month
  • • Profit tracking
  • • Expenses categorisation
  • • Tax-year view (Apr–Mar)
  • • Fuel + mileage tracking
  • • Student management
  • • CSV exports
  • • Mobile-friendly
  • • No spreadsheets
Start free trial
Cancel anytime • No setup required
InstructorOS
Finance tracking software for UK driving instructors (ADIs).
InstructorOS helps independent UK driving instructors replace a driving instructor spreadsheet with a clean dashboard for lesson income, business expenses, profit margin and estimated tax — including UK tax year (Apr–Mar) reporting and exports for year-end.
InstructorOS is a trading name of Willow & Bean Co. Ltd (Company No. 16128200).
Registered office: Suite 21, Storth House, 156 Cowlersley Lane, Huddersfield, United Kingdom, HD4 5UX.