Accounting for independent trades.
On the tools, but not on your own.
Accounting & tax support for CIS subcontractors and tradespeople. Built around your work, and your ambition. Not to overwhelm you.
Why CIS Accounting is Different
Working under CIS gives you independence, but it also brings its own pressure.
You are focused on the job, the site, the client, the next piece of work, and the money coming in. But behind that sits deductions, expenses, tax repayments, records, VAT questions, MTD, deadlines and HMRC.
That is where Optimyze comes in. We help CIS subcontractors and tradespeople stay compliant, organised and confident, without letting the tax side become another burden after a long working day.
Your accounting should support the work you do, not pull you away from it.
Who We Work With
We support CIS subcontractors and tradespeople who want clear, practical accounting and tax support.
Whatever your trade or setup, we help you stay on top of your numbers, not buried under them.
- Construction subcontractors working under CIS
- Tradespeople managing job-to-job income
- Self-employed workers with CIS deductions
- Contractors dealing with expenses, repayments, VAT or MTD questions
- Skilled workers who want less paperwork and more control over their tax position
Our CIS Plans
Choose the plan that fits how you work and how much support you want.
Both include full HMRC representation, friendly expert support, and complete peace of mind.
Responsibility fulfilled.
Trade Plan
Stay compliant, clear and responsible, while you focus on the work.
You want your tax, records and compliance handled properly, without overcomplicating things.
- CIS income and deduction review
- Annual Self Assessment support
- Expense review and allowable cost guidance
- Tax calculation and submission
- Repayment and payment guidance where relevant
- Basic bookkeeping and record-keeping support
Ambition empowered.
Build Plan
When your trade is not just work, but something you are building.
You want to understand your numbers, plan ahead and make better decisions.
- Everything in the Trade Plan
- Proactive tax planning conversations
- Periodic finance check-ins
- Support with VAT and MTD readiness where relevant
- Guidance on whether your current structure still fits
- Cash flow and profit awareness
- Advice around tools, vehicle, materials and job-related expenses
Why Clients Choose Optimyze
We care about the business you are trying to build.
We care beyond compliance.
Because your success is our success.
We make digital personal.
Real advisors, not bots. We speak numbers in plain English.
We're inclusive by design.
Every background, every business, equally supported.
We simplify with tech.
Xero, Hubdoc, Syft, Coconut — tools that work for you.
We enable and empower.
Compliance without slowing your momentum. Advice early, before problems grow.
Ready to Get Started?
You may be on the tools, but you do not have to carry the tax side alone.