Contractor Calculators

Our range of calculators for contractors and permanent employees can be used for a variety of tasks from calculating taxes and net pay through to comparing contract rates and effects of IR35. In addition to the calculators listed below you can view our complete calculator directory.

Popular contractor calculators

Financial Profile

Contractor Financial Profile Calculator

View your contracting financial profile.

Contract Income

Contractor Calculator (inside IR35)

What is your net income when caught by IR35?

Contractor Calculator (outside IR35)

What is your net income when outside IR35?

Contract Comparison Calculator

Compare the incomes from two different contracts.

Contractor Umbrella Calculator

What is your income using an umbrella company?

Earning More

Target Income Calculator

What rate or salary earns your desired income?

Target Income Calculator (Contracting)

What rate increase will earn your desired income.

Budget Effects

Effect of Budget Calculator

How did the last budget affected you?

Mortgages

Contractor Mortgage Assessor Calculator

How much mortgage can you get as a contractor?

Contractor Mortgage Calculator

Calculate payments for a mortgage and affect on net income.

Pensions

Contractor Pension Calculator

Calculate the pension benefits.

Moving From Contract to Permanent

Contracting to Permanent Calculator

What permanent salary earns the same as contracting?

Permanent to Contracting Calculator

What contract rate earns the same as permanent employment?

Permanent Salary Calculator

Calculate taxes and take home pay.

Permanent Salary Comparison Calculator

compare the net income from two salaries.

IR35 / Taxation

IR35 Calculator

How much does IR35 cost you?

IR35 Taxes Calculator

Compare taxes inside/outside IR35.

Deemed Payment Calculator

Calculate deemed payment and taxes due.

Managed Service Company Calculator

How much could the new legislation cost you?

Income Shifting Calculator

How much could the new legislation cost you?

Section 660 Calculator

How much could Section 660A cost you?

Late Payment

Late Payment Calculator

Calculate the interest you can charge on late payments.

Latest Site Updates

Paying your contractor – timesheets, invoices and payment

Unless clients sign timesheets and process invoices promptly, contractors don’t get paid. This can delay project delivery and lead to legal action.

ContractorCalculator: Contracting news in brief

News this week confirms contractors don’t qualify for employment rights; demand for IT contractors will soar; property prices improve; and more.

Common mistakes when writing a CV

A bad CV will prevent you from getting the interview even if you are the best person for the role. Here we explain the common mistakes people make on CVs.

Contractor ‘employment’ status clarified as Tilson ruling is overturned on appeal