Over £5.8bn overpaid in UK taxes each year

Stop overpaying tax.Start building wealth.

UK tax optimization for families - optimize your salary, maximize take-home pay

Calculate your potential savings

Enter your annual salary before tax

£

Examples: £50,000 • £75,000 • £100,000

Bank-grade security
Trusted by 1,000+ professionals
Free and quick signup

Every month, money is left on the table - because the UK tax system is a headache, with tax traps and benefits that are hard to find. Those childcare perks you qualified for last month? Gone. That tax relief you didn't know about? Missed. That optimal pension contribution sweet spot? A mystery.

We'll show you exactly how to optimize your salary , get an ideal pension contribution and maximize your benefits. Find the perfect balance between today's comfort and tomorrow's security. Our calculator adjusts with you throughout the year, helping you stay on track as your circumstances change. Think of us as your pocket financial advisor , but without the hefty price tag and complicated jargon.

✓ 100% Free

Everything you need, completely free

No hidden fees. No premium tiers. No credit card required. Just powerful tax optimization for UK families.

Complete Tax Calculator

Annual and payslip calculations with real-time tax optimization

Family Insights

Partner income, children benefits, household financial overview

Unlimited Scenarios

Save and compare unlimited calculations, stored permanently

Visual Breakdown

Interactive charts, graphs, and detailed tax breakdowns

Benefits Tracking

Child benefit, tax-free childcare, marriage allowance insights

Export & Share

Share privately or publicly, export data for your records

Get Started Free →

No credit card required • Takes 30 seconds

What You'll Get

Keep More of Your Money

Stop overpaying tax. Start building wealth. Get personalized recommendations that put real money back in your pocket.

More Take-Home Pay

Get the perfect salary split to maximize what hits your bank account each month.

Avoid unnecessary tax thresholds
Optimize salary vs benefits split
Reduce National Insurance payments

Perfect Pension Plan

Find your sweet spot for pension contributions that balance today's needs with tomorrow's security.

Maximize tax relief on contributions
Get the right salary sacrifice amount
Balance present vs future income

Unlock Hidden Benefits

Discover benefits and tax credits you're entitled to but might be missing out on.

Childcare support eligibility
Income-based benefits check
Tax credit opportunities

Start Optimizing Your Finances Today

Create your free account and access all features. No credit card required. No hidden fees. Ever.

Create Free Account →
Setup in 2 minutes
Bank-level security
100% free forever
Real Results

What Our Users Are Saying

Join over 500 professionals who have optimized their finances and found hidden savings

Verified User
SK

Sarah K.

Senior Project Manager

"As a typical HENRY with kids, returning to work was overwhelming with tax traps and childcare benefits. BishBashDosh did the hard work, uncovering tax relief I never knew existed. Now I know I'm not going to get a nasty surprise at the end of the year — what a relief!"
Verified User
MJ

Michael J.

Software Developer

"I'd been paying higher-rate tax unnecessarily for years. BishBashDosh showed me exactly how to optimise my pension contributions, saving me over £320 every month and then helped me work out how to handle my savings"
Not a real testimonial... yet!
RR

Rachel Reeves

Chancellor of the Exchequer

"Finally, someone made sense of my own tax system! I've been trying to work out pension contributions since I got this job..."

Take-home pay optimiser

Find your ideal salary structure

Smart investment advisor

Automated guidance for your savings

Childcare benefit checker

Maximize your family benefits

Tax threshold optimiser

Navigate tax bands efficiently

Salary sacrifice planner

Optimize your compensation structure

Real payslip analysis

Use payslips for precise calculations

View our feature roadmap
Resources & Learning

Learn & Stay Updated

Latest insights, comprehensive guides, and expert advice on UK tax optimization

View all blog posts

Decoding Your Payslip

Learn how to understand every line of your payslip and identify potential savings opportunities.

Read Guide

Why Tax Efficiency Matters

Discover how small changes in your financial planning can lead to significant tax savings.

Read Guide

Understanding Salary Sacrifice

A beginner's guide to salary sacrifice and how it can benefit your financial planning.

Read Guide
Browse all guides

Need Professional Financial Advice?

Connect with FCA-authorized Independent Financial Advisors matched to your income and financial goals. Get expert guidance on pensions, investments, and long-term planning.

Browse Financial Advisors
Partnership Opportunities

Grow Together Through Partnership

Partner with us to provide enhanced tax optimization, benefits guidance, or showcase relevant services to our engaged user base

Financial Advisors

Join our network of FCA-authorized advisors. Receive pre-qualified leads with detailed financial profiles.

  • 25% commission on completed referrals
  • No upfront costs or platform fees
  • Pre-qualified, engaged prospects
  • Rich client financial context upfront
Become a Partner Advisor

Service Providers

Perfect for accountancy firms, pension providers, and financial service companies looking to reach engaged users.

  • Contextual promotion opportunities
  • Financially-conscious audience
  • API integration capabilities
  • Performance metrics & reporting
Explore Service Partnerships

Organizations & HR

Enhance employee financial wellbeing with our platform. Perfect for HR teams and benefits providers.

  • Employee benefits optimization
  • Payroll system integration
  • Custom reporting & analytics
  • Branded employee experience
Explore Organization Partnerships

Ready to explore partnership options?

Discuss Partnership Opportunities

Bespoke packages available for organizations of all sizes

We carefully evaluate all partnerships to ensure they align with our users' best interests. All promotional content is clearly identified as such to maintain transparency and trust.