Staying on top of your tax deadlines as a contractor in Bromley is essential to keep your contracting business compliant and penalty-free. As a professional contractor, you face several critical dates throughout the financial year—from self-assessment to CIS and corporation tax obligations. This guide is here to help you understand the most important deadlines and stay organised. For personalised advice, contact us at 0208 776 0200 or email info@ctmp.co.uk.

“Don’t let tax deadlines catch you off guard! We help Bromley contractors meet every deadline with ease, so your business stays compliant and stress-free. Let’s take the hassle out of tax season together.”

Why Tax Deadlines Matter For Bromley Contractors

Meeting tax deadlines in Bromley is about more than just following rules. Staying punctual with your deadlines shields you from HMRC interest, costly penalties, and extra scrutiny. Missing a deadline can mess with your cash flow, damage your reputation, and even put your contracting business at risk.

The Essential Tax Calendar For Bromley Contractors

Here are the most important tax deadlines for contractors in Bromley to mark in your diary:

1. Self-Assessment Tax Return

If you are self-employed or work as a contractor, your central annual requirement is the Self Assessment.

1. Paper filing deadline: 31 October after the end of the tax year
2. Online filing deadline: 31 January following the end of the tax year
3. Tax payment deadline: 31 January (same as online filing)

Payments on account may also be due by 31 July, so remember to prepare for this.

2. Construction Industry Scheme (CIS) Returns

If you pay subcontractors through CIS, submitting monthly CIS returns and making deductions to HMRC is vital.

1. Monthly return due: 19th of each month
2. Electronic payments deadline: 22nd each month

Late returns under CIS attract penalties. If you need more details, see our contractor tax guide for Bromley.

3. Corporation Tax Deadlines

For those operating as limited companies:

1. Corporation tax payment due: 9 months and 1 day after your company’s accounting period ends
2. Corporation tax return submission: 12 months after your accounting period ends.
3. HMRC may issue reminders, but the obligation to know and meet deadlines is yours. Respond promptly to all HMRC reminders.

4. PAYE And Employer Deadlines

If you employ staff (including yourself as a director):

1. Monthly/quarterly PAYE payments: by the 19th (post) or 22nd (online)
2. Full Payment Submission (FPS): on or before payday
3. End of year returns: by 19 May

Some smaller businesses can pay quarterly. Read more in our accounting deadlines information.

5. Other Key Self-Employed Tax Dates

1. Register new income/gains: by 5 October if you’re new to self-assessment
2. VAT returns: usually quarterly, dates depend on your individual VAT setup

Missing these or other self-employed tax dates can result in automatic fines.

What Happens If You Miss A Deadline?

You’ll face automatic fines and possible interest charges if you’re late. Continued delays can result in stiffer penalties or even an investigation. As a CIS contractor, late filing could put your registration at risk. If you’re in trouble, get in touch—early action can often reduce penalties.

Preventing Penalties: How To Stay On Top Of Deadlines

Use digital calendars and set alerts for every important contractor tax Bromley deadline. HMRC’s reminder services can be helpful, especially as tax season scams are common; never share personal information or respond to suspicious emails. Timely reminders and clear organisation are the best defences.

1. Register for HMRC reminders
2. Use secure accounting software for schedule management
3. Work with tax professionals who understand Bromley’s business landscape

For more support, see our section on tax deadlines in Bromley.

Frequently Asked Questions: Tax Deadlines For Bromley Contractors

Q: What if I start paying subcontractors for the first time?

A: Register as a contractor with HMRC immediately and begin CIS returns from month one.

Q: Can I stop filings if I pause trading?

A: Under CIS, you can submit an inactivity request for up to 6 months—but act fast when restarting.

Q: How do I verify an HMRC message?

A: HMRC will not demand payment to unknown accounts or request information by text or email. Unsure? Contact a professional or HMRC directly.

Check our contractor tax guide for Bromley for deeper insights.

How We Help Bromley Contractors Meet Tax Deadlines

1. Our expertise helps contractors across Bromley.
2. Receive deadline reminders, tailored to your business
3. Get hands-on filing support for CIS, PAYE, and annual returns
4. Access up-to-date tax planning advice to minimise your tax bill

Find specialist support for funding—start with How to Use You and Your Chartered Accountant to Secure Funding

Take Charge Of Your Tax Deadlines

Never miss a crucial deadline again. Focus on your success—let us take care of your tax deadlines as a contractor in Bromley. Call 0208 776 0200 or email info@ctmp.co.uk to keep your business compliant and stress-free.