Free UK tax calculators, deadlines and practical guides
Clear answers for employees, directors, sole traders, landlords and construction businesses—provided by Digivolve’s accountants in Haywards Heath. Explore our accountancy and tax services for support with your own figures.
Tax calculators
Net pay calculator
Estimate take-home salary, PAYE, National Insurance, pension and student-loan deductions, including a next-payslip forecast.
Calculate net pay →Salary and dividend calculator
Compare salary, dividends and personal tax for a UK company director using current rates.
Compare salary and dividends →Pension tax relief calculator
See the provider top-up, further relief, restored Personal Allowance and the real cost of a relief-at-source contribution.
Calculate pension relief →MTD start-date checker
Combine gross self-employment and property income to see your likely Making Tax Digital start date.
Check your MTD date →CIS deduction calculator
Calculate the amount subject to CIS, the deduction and the net subcontractor payment.
Calculate a CIS deduction →VAT calculator and checker
Add or remove VAT and compare rolling taxable turnover with the £90,000 registration threshold.
Calculate VAT →Company car tax calculator
Estimate the 2026/27 benefit and employee tax for electric, plug-in hybrid and petrol company cars.
Calculate company car tax →Making Tax Digital and deadlines
Making Tax Digital in Haywards Heath
What digital records, compatible software and quarterly updates mean for local sole traders and landlords.
Read the MTD hub →MTD Income Tax checklist
A practical 2026 checklist for records, software, authorisation and quarterly submissions.
Use the MTD checklist →UK tax deadlines
Key Self Assessment, PAYE, VAT, Corporation Tax and Companies House dates in one place.
See tax deadlines →Real client results and worked examples
From paper invoices to MTD-ready
How Leigh, a plumbing and heating engineer, moved to separate banking and digital records in one week.
Read Leigh’s story →Urgent accounts and tax planning
How early company accounts and dividend planning created clarity, protected personal cash and avoided a future rate increase.
Read the company case study →Joe’s pension calculation
A Haywards Heath software engineer example showing how tax relief can reduce the real cost of a pension contribution.
Read Joe’s example →Need the calculation checked against your real figures?
Tools are useful for direction. Good tax planning depends on the complete picture and the timing.
Calculators provide general estimates, not personal tax advice. Each tool states its assumptions and links to the relevant HMRC source. Content reviewed 8 September 2026 · By Matthew Hunt.