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UK Accounting Firms

HMRC updates, tax deadline calendars, MTD tracker, AML compliance checklists, and free guides — all in one place.

HMRC Updates
Tax Deadline Calendar
MTD Tracker
Free Guides
AML Checklist
Newsletter

Latest HMRC & Companies House Updates

Key regulatory changes affecting UK accounting practices — updated regularly

View all on GOV.UK →
06Apr 26

MTD for Income Tax Self Assessment — Phase 1 goes live

From 6 April 2026, self-employed individuals and landlords with income over £50,000 must use MTD-compatible software and submit quarterly updates to HMRC. Paper filing ceases for this group.

MTDSelf AssessmentAction required

Read HMRC guidance →
Jan26

Companies House — Identity Verification mandatory for new incorporations

Identity verification for directors, PSCs and those filing on behalf of companies is now required for new incorporations. Existing company officers have a transition period until late 2026.

Companies HouseAMLKYC

Read Companies House guidance →
Apr26

National Living Wage rises to £12.21/hour

The NLW increases to £12.21/hour for workers aged 21 and over from April 2026. Employer NI threshold also changes — important for payroll clients.

PayrollEmployment

View current rates →
Apr27

MTD for Income Tax — Phase 2: £30,000+ threshold

From April 2027, MTD for ITSA extends to individuals with income over £30,000. Practices should begin identifying affected clients now and planning their migration strategy.

MTDUpcomingPlan now

HMRC MTD timeline →
2026ongoing

Anti-Money Laundering — Enhanced due diligence requirements

HMRC's supervision of accountancy sector AML compliance continues to intensify. Practices must maintain up-to-date written risk assessments, CDD records, and PEP screening documentation.

AMLComplianceOngoing

HMRC AML guidance →
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2025/26 Tax Deadline Calendar

Key filing and payment deadlines for UK accounting practices

January 2026
31 Jan
Self Assessment filing deadline
Online SA returns for 2024/25 tax year + balancing payment due. First payment on account for 2025/26.
Passed
February 2026
19 Feb
PAYE/NIC due (paper)
PAYE, NIC, CIS and student loan deductions for month ending 5 Feb 2026 — paper payment.
Passed
March 2026
31 Mar
Corporation Tax — 31 Dec year ends
Corporation tax due for companies with 31 December 2025 year end.
Passed
April 2026
5 Apr
End of 2025/26 tax year
Last chance to use 2025/26 allowances: ISA, pension, CGT annual exempt amount.
This month
April 2026
19 Apr
PAYE/NIC due (paper)
PAYE, NIC, CIS deductions for final month of 2025/26 tax year.
This month
May 2026
19 May
PAYE year-end forms
P60s must be issued to all employees by 31 May. Expenses and benefits (P11D) due 6 July.
Next month
June 2026
30 Jun
Corporation Tax — 31 Mar year ends
9-month deadline for corporation tax payment for companies with 31 March 2026 year end.
Upcoming
July 2026
6 Jul
P11D expenses & benefits
Submit P11D forms for all employees with taxable benefits in kind for 2025/26 tax year.
3 months
July 2026
31 Jul
Second payment on account
Second self assessment payment on account for 2025/26 tax year due.
3 months
October 2026
5 Oct
Notify HMRC of new sources
Deadline to notify HMRC of new income sources or capital gains for 2025/26 not previously declared.
6 months
October 2026
31 Oct
Paper SA return deadline
Self assessment paper return filing deadline for 2025/26. Online deadline is 31 January 2027.
7 months
January 2027
31 Jan
SA online filing + payment
Online self assessment return for 2025/26. Balancing payment + first 2026/27 payment on account.
10 months
Note: Deadlines shown are standard dates. Always verify with HMRC as dates can shift when they fall on weekends. Corporation tax payment dates vary by company year end — check with your client's specific accounting period.

Making Tax Digital — Full Timeline

Where we are and what's coming — help your clients prepare now

April 2019
MTD for VAT — Phase 1
VAT-registered businesses with taxable turnover above the VAT threshold (£85,000) required to keep digital records and submit VAT returns using MTD-compatible software.
Complete — all applicable businesses enrolled
April 2022
MTD for VAT — All VAT-registered businesses
MTD for VAT extended to all VAT-registered businesses regardless of turnover, including those voluntarily registered below the threshold.
Complete — mandatory for all VAT businesses
April 2026 — NOW
MTD for Income Tax — Phase 1 (£50,000+)
Self-employed individuals and landlords with gross income over £50,000 must now use MTD-compatible software, maintain digital records, and submit quarterly updates plus a final declaration to HMRC. Paper self assessment ends for this group.
Live now — clients must be enrolled
April 2028 — Future
MTD for Income Tax — Phase 3 (£20,000+)
Further extension to individuals with income over £20,000. Date confirmed by HMRC subject to review. General partnerships also expected to be mandated in a future phase — date TBC.
Confirmed in principle — monitor HMRC
TBC
MTD for Corporation Tax
MTD for Corporation Tax is in the pipeline but no mandatory date has been confirmed. HMRC ran a pilot programme and is reviewing results. Practices should monitor HMRC announcements.
No mandatory date confirmed
Automate your MTD migration workflow: We can build a client communication and document collection system specifically for MTD onboarding — notifying affected clients, collecting their software details, and tracking migration status automatically. Book a free audit →

Free Guides & Downloads

Practical resources for UK accounting practice owners — no email required

📊
How Much Is Manual Admin Really Costing Your Firm?
PDF Guide · 4 pages
FREE

A step-by-step calculation to quantify exactly how much your firm spends on manual onboarding, document chasing, and compliance admin — in staff hours and £.

Use the interactive calculator →
The AML/KYC Onboarding Checklist: Compliance Edition
Printable checklist · Free
FREE

A complete AML compliance checklist covering CDD, EDD, PEP screening, source of funds, and ongoing monitoring — ready to use for every new client onboarding.

View & print checklist →
🔍
Practice Automation Scorecard
Interactive assessment · Free
FREE

10 questions that score your practice's automation readiness out of 50. Identifies your top 3 automation priorities with specific recommendations.

Take the scorecard →
📅
5 Workflows Every Practice Should Automate Before 2027
Guide · Free
NEW

The 5 most impactful automation wins for UK accounting firms — ranked by time saved, ease of implementation, and ROI. Includes before/after workflow maps.

Book a free audit to discuss →
🏦
MTD Migration Client Letter Template
Word template · Free
HMRC

A professional letter template to inform affected clients about their MTD for ITSA obligations, what they need to do, and how your practice will support them.

Request template →
💰
New Revenue Streams for Accounting Practices 2026
Guide · Free
NEW

How forward-thinking practices are adding £10K–£50K/year in new revenue by offering automation services to their existing business clients — with no technical knowledge required.

See our Partner Programme →

AML/KYC Client Onboarding Checklist

For use with every new client. Tick each item as completed. Print or save for your records.

1. Customer Due Diligence (CDD)

2. Risk Assessment

3. PEP & Sanctions Screening

4. Enhanced Due Diligence (EDD) — High-risk clients only

5. Documentation & Engagement

Automate this entire checklist: Our onboarding automation system completes and logs every item above automatically — no manual ticking, full audit trail. Book a free demo →

The Finaccord Briefing

Monthly digest for UK accounting practice owners

📰
The Practice Briefing — March 2026
Click to read full edition

MTD Phase 1 goes live — what every practice must do now. Companies House identity verification: the transition timeline. April payroll checklist and NLW rates confirmed.

Read full edition →
📰
The Practice Briefing — February 2026
Click to read full edition

Self Assessment season debrief — what went well and what to improve. Five practice improvements to make before April. Spring Budget key announcements for practices.

Read full edition →
📰
The Practice Briefing — January 2026
Click to read full edition

Surviving the 31 January rush — lessons from this year. Identifying which clients are affected by MTD Phase 1. HMRC AML supervision — what practices need to have in place.

Read full edition →

Want all of this automated for your practice?

Deadlines tracked, HMRC reminders sent to clients, AML checklists completed automatically. Book a free 30-minute audit.

Book free audit →