MTA: 2026 Startup Tax Alert — New Corporation Tax Rules Every Founder Must Know

Описание: Are you ready? Corporation Tax changes for UK startups in 2026 explained — everything founders must know to stay compliant and avoid higher tax bills under the updated HMRC framework.

This video breaks down the new Corporation Tax rules affecting UK startups in 2026, including tax rate thresholds, marginal relief mechanics, investment incentives and compliance risks.

MTA (My Tax Accountant) explains the 2026 landscape clearly:

• 19% small profits rate for profits up to £50,000
• 25% main rate for profits above £250,000
• Marginal relief for startups scaling between the thresholds
• Impact of associated companies on rate eligibility
• Capital allowances — full expensing, AIA, digital-tool deductions
• R&D tax reliefs for early-stage innovation
• Loss relief options for new companies
• HMRC expectations for digital record-keeping under MTD

Important.
Startups pay more when thresholds shrink — especially with associated companies.

Search-intent questions UK founders are asking in 2026:

– What Corporation Tax changes affect startups in 2026?
– Do new businesses still qualify for the 19% rate?
– How does marginal relief work for small companies?
– Can startups reduce tax with capital allowances?
– Do early-stage losses help lower future tax bills?

Problem:
Rapid revenue growth → marginal relief miscalculated → unexpected higher tax bill → cash flow pressure.

Solution:
Understand how thresholds apply, plan investment cycles smartly, and optimise reliefs before filing the CT600.

This 2026 guide also explains:

• R&D eligibility for young tech and digital startups
• When quarterly instalment payments begin
• How MTD digital compliance affects startups
• Common errors new founders make with Corporation Tax
• HMRC penalties for incorrect filings or late submission

Small miscalculation.
Large financial consequences.

MTA (My Tax Accountant) helps UK startups navigate tax reliefs, avoid penalties, and submit accurate CT600 filings that support long-term scalability.

Comment “STARTUP” below if you want an assessment of which reliefs your new business may qualify for.

For professional assistance:

MTA (My Tax Accountant)
www.mytaxaccountant.co.uk

Phone: 0208 5708531
Email: [email protected]

Speak to a qualified UK tax adviser before submitting your 2026 Corporation Tax return.

Disclaimer
This content is for general informational purposes only and reflects UK Corporation Tax rules applicable in 2026. Tax treatment depends on profit levels, associated companies, allowable reliefs and HMRC criteria. Always seek professional advice before making tax decisions. MTA (My Tax Accountant) accepts no liability for reliance placed on this material without professional consultation.



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