At InsightAccountax, we provide comprehensive tax accounting services covering VAT, Corporation Tax and Self Assessment. Our team ensures you’re always compliant with HMRC, filing accurately, and never paying a penny more tax than the law requires.
We combine deep technical knowledge with proactive planning — identifying reliefs, allowances and strategies that most clients don’t know they’re entitled to.
Whether you’re a sole trader navigating your first Self Assessment or a director managing Corporation Tax, we handle everything so you can focus on your business.
Core Tax Services
Our Three Tax Specialisms
VAT, Corporation Tax and Self Assessment — covered completely under one roof.
VAT Returns
Quarterly · Annual
VAT registration and deregistration
Quarterly and annual VAT return preparation
Making Tax Digital (MTD) compliance
VAT scheme advice (flat rate, cash, standard)
HMRC VAT correspondence and dispute support
Corporation Tax
Limited Companies · CT600
Corporation Tax return (CT600) preparation
Capital allowances and AIA claims
R&D tax relief assessment and claims
Director salary and dividend planning
HMRC filing and payment management
Self Assessment
Individuals · Sole Traders
Self Assessment registration with HMRC
Annual tax return preparation and filing
Allowable expense review and optimisation
Payment on account planning and advice
Landlord, dividend and foreign income
Key Dates
Important Tax Deadlines
Never miss a deadline — we track every date and file everything well ahead of schedule.
31 Jan
Self Assessment
Online return filing and tax payment deadline
Annual
31 Oct
Paper Returns
Deadline for paper Self Assessment submissions
Annual
9 Months
Corporation Tax
CT600 filing and payment after financial year end
Year End
Quarterly
VAT Returns
VAT returns due one month and seven days after period end
Quarterly
Why Choose Us
Why Clients Trust InsightAccountax
HMRC Registered Agent
Fully authorised to communicate, file and act on your behalf directly with HMRC.
Tax Minimisation Focus
We proactively identify every relief and allowance — our clients consistently pay less than before.
Zero Missed Deadlines
In over 10 years, we have never missed a client filing deadline — your compliance is guaranteed.
Year-Round Support
Not just at year-end — we're available throughout the year for questions, planning and advice.
Our Track Record
Years in Practice
10+
Compliance Record
100%
Satisfaction Rate
100%
Response Time
24hr
Missed Deadlines
Zero
Common Questions
Tax Accounting FAQs
Do I need to register for VAT?
You must register for VAT if your taxable turnover exceeds the current registration threshold in any 12-month period. You can also register voluntarily, which may benefit your business depending on your clients and costs.
When do I need to file a Self Assessment return?
You need to file if you’re self-employed, a landlord, a company director, or have untaxed income above certain thresholds. The online deadline is 31 January each year for the previous tax year.
What is the Corporation Tax rate in the UK?
Corporation Tax in the UK is currently 25% for profits over £250,000, 19% for profits under £50,000, with marginal relief for profits between these thresholds. We advise on the most efficient structure for your company.
Can you deal with HMRC on my behalf?
Yes — as a fully authorised HMRC Agent, we can communicate, file returns, respond to enquiries, and handle all correspondence with HMRC directly on your behalf, saving you time and removing the stress.