Never be surprised by your
Corporation Tax bill again.
Real-time Corporation Tax forecasting and monthly set-aside guidance for UK Ltd directors. Know your CT estimate the moment you enter your profit — including marginal relief.
2025–26 rules. Scottish rates. Student loan plans 1–5. Cancel any time.
Your CT position, always up to date
Enter your profit. Instantly see your Corporation Tax estimate and exactly how much to set aside each month.
Your inputs
Corporation Tax owed
£22,500
Effective rate 18.75% · Marginal relief applied
CT rate
18.75%
Recommended monthly transfer
£1,875 / month
CT due
6 Jan 2027
Illustrative figures. Based on £120k profit, one director, 2025–26 tax year, rest of UK.
How it works
Enter your profit
Tell us your company gross profit, any salary already paid, and your region. Takes under a minute.
Get your CT estimate
Instantly see your Corporation Tax liability, effective rate, and the monthly amount to set aside — including marginal relief.
Save and update
Save your forecast and revisit it as your profit changes throughout the year. Salary and dividend optimisation included.
Everything you need
Live CT estimate
Corporation Tax calculated in real time including marginal relief for profits between £50k and £250k.
Monthly set-aside amount
Know exactly how much to transfer to a dedicated tax account each month so your CT due date is never a shock.
Dividend impact preview
See how drawing dividends affects your personal tax position alongside your CT forecast.
Student loan-aware
Plans 1, 2, 4, and 5 all modelled. Your repayments are factored into the net income calculation.
Scottish rates included
Scottish income tax bands are applied automatically when you select Scotland as your region.
2024–25 and 2025–26
Both tax years supported, including the employer NIC changes effective April 2025.
Know your CT bill before your accountant does.
Join UK Ltd directors who use Profit Pilot to forecast their tax liability and set aside the right amount every month.
Start your 1-month free trial