Preparing for the New Tax Year 2026: A Practical Guide

The 5th April deadline is behind us. The new tax year has begun. And for UK business owners, this moment marks more than just a date on the calendar, it's a fresh start, a clean slate, and the perfect opportunity to set your financial affairs on a stronger footing.

But a new tax year doesn't just happen. It requires preparation. The decisions you make now in the days and weeks following the year end will shape your tax position, your cash flow, and your business performance for the next 12 months.

This practical guide walks you through everything you need to do to start the 2026/27 tax year with confidence, clarity, and control.

Why the Start of the Tax Year Matters

The first weeks of the new tax year are a unique window. The pressure of the January deadline is behind you. The year end scramble is done. You have a clear view of the past year's performance and a full year ahead to plan.

What you do now sets the tone for everything that follows. Get it right, and you'll enjoy:

• Lower stress when deadlines approach

• Fewer surprises when tax bills arrive

• Better decisions based on accurate, timely data

• More opportunities to optimize your tax position
  

Your New Tax Year Checklist

1. Review Last Year's Performance (Before You Move On)

You can't plan for the future without understanding the past. Before you dive into 2026/27, take time to reflect on 2025/26.

What to review:

• Profitability: Were you more or less profitable than expected? What drove the difference?

• Cash flow: Were there months when cash was tight? What caused those dips?

• Expenses: Which costs increased most? Were there any surprises?

• Tax liability: What was your final tax bill? Did it match your expectations?

Why it matters:

This review reveals patterns. It highlights what's working and what isn't. And it gives you a baseline against which to measure next year's performance.

Action:

Run your year end profit and loss statement. Spend 30 minutes noting three things that went better than expected and three things that need improvement.

2. Update Your Accounting Software for the New Year

If you're using accounting software UK SMEs rely on, the new tax year requires a few housekeeping steps.

What to do:

• Check for rate updates: Ensure your software has the latest tax rates, NI thresholds, and allowances for 2026/27.

• Run a year end report: Generate your final reports for 2025/26 and archive them.

• Reset budgets: If you use budgeting features, set new targets for the coming year.

• Review user access: Ensure the right people have the right permissions.

Why it matters:

Starting the year with clean, correctly configured software prevents errors and saves time later.

Action:

Log into your accounting platform. Run a system check and confirm all settings are updated for 2026/27.

3. Review and Adjust Your Pricing

A new tax year is the ideal time to review your pricing. With inflation, wage rises, and increased supplier costs, what worked last year may no longer be sustainable.

What to consider

• Have your costs increased? By how much?

• What are competitors charging?

• What value do you deliver that justifies a premium?

• When did you last increase prices?

Why it matters:

Small price adjustments, implemented at the start of the year, compound into significant profit improvements over 12 months.

Action:

Calculate your gross margin on your top three products or services. If margins have shrunk, plan a price review for early Q2.

4. Set Up Your Tax Savings Plan

One of the biggest causes of cash flow stress is the surprise tax bill. You can eliminate this entirely with a simple system.

What to do:

• Estimate your tax liability: Based on last year's profit and your growth plans, what will you likely owe in Corporation Tax or Income Tax?

• Calculate a monthly savings target: Divide your estimated liability by 12.

• Set up an automatic transfer: Move that amount from your main account to a dedicated tax savings account each month.

Why it matters:

When tax bills arrive, the money is already there. No scrambling. No borrowing. No stress.

Action:

Open a separate business savings account if you don't already have one. Set up a standing order for the first of each month.

5. Plan Your Director's Remuneration (For Limited Companies)

If you're a director of a limited company, how you pay yourself in 2026/27 affects both your personal tax and the company's Corporation Tax.

What to consider:

• Salary level: The optimal salary is usually around the NIC threshold (£12,570) to protect state pension without incurring significant NI.

• Dividend timing: With the dividend allowance at just £500, planning when to take dividends matters.

• Pension contributions: Company pension contributions are a deductible expense and a tax efficient way to extract value.

Why it matters:

A well planned remuneration strategy can save thousands in combined personal and corporate taxes.

Action:

Review your 2026/27 remuneration plan with your accountant before the first payroll run.

6. Refresh Your Bookkeeping Habits

A new tax year is the perfect time to reset your financial routines. The goal: make bookkeeping effortless, not a quarterly scramble.

What to do:

• Set a weekly bookkeeping slot: 30 minutes every Friday morning to update records, categorize transactions, and review cash flow.

• Go digital: If you're still using paper, commit to moving to cloud bookkeeping tools this year.

• Connect bank feeds: Ensure your accounting software is linked to your business accounts for automatic transaction import.

• Use receipt capture: Download the mobile app for your accounting software and snap receipts as they happen.

Why it matters:

Consistent, real time bookkeeping means you always know your position. No more end of year panic. No more missed deductions.

Action:

Schedule your weekly bookkeeping time in your calendar. Set a reminder. Treat it as non negotiable.

7. Understand the Key Dates for 2026/27

Mark these dates in your calendar now. Missing them means automatic penalties.

Date What's Due

6 April 2026 New tax year begins

19 April 2026 PAYE and NIC payments for March 2026 (postal)

22 April 2026 PAYE and NIC payments for March 2026 (electronic)

31 May 2026 Deadline to give P60s to employees

6 July 2026 Deadline to file P11Ds and P11D(b)

31 July 2026 Second payment on account for Self Assessment (if applicable)

31 October 2026 Paper Self Assessment deadline (if not filing online)

31 December 2026 Corporation Tax filing deadline for December 2025 year ends

31 January 2027 Online Self Assessment deadline and balancing payment

Action:

Add these dates to your business calendar. Set reminders two weeks before each deadline.

8. Schedule Your Key Meetings

Proactive planning beats reactive scrambling. Book these meetings now:

• Quarterly review with your accountant: Schedule four meetings across the year to review performance, tax planning, and upcoming deadlines.

• Mid year tax check: A June/July review ensures you're on track for January.

• Pre year end planning: A February/March session to make last-minute tax-efficient moves.

Action:

Email your accountant today to schedule your first quarterly review for April or May.

9. Set Financial Goals for the Year

Goals give you something to aim for. They turn vague intentions into measurable targets.

What to set:

• Revenue target: What do you want to sell?

• Profit target: What do you want to keep?

• Cash reserve target: What safety buffer do you want to build?

• Debtor days target: How quickly will you collect payments?

• Tax savings target: How much will you set aside each month?

Action:

Write down three financial goals for 2026/27. Share them with your team and your accountant. Review progress quarterly.

10. Embrace Technology for the Year Ahead

If you've been managing finances with spreadsheets, shoeboxes, or outdated software, this is the year to upgrade. Modern bookkeeping tools do more than just record transactions, they provide real time insights, automate repetitive tasks, and help you make better decisions.

What to look for:

• Cloud based with mobile apps

• Real time bank feeds

• Automated expense categorization

• Cash flow forecasting

• MTD compliant for VAT and Income Tax

• Strong integration with your other business tools

Action:

Research one new accounting software option this week. Book a demo. See what you've been missing.

Your Fresh Start Starts Now

A new tax year is a gift. It's an opportunity to leave behind the financial habits that caused stress, missed opportunities, and late nights. It's a chance to build systems that make tax planning effortless, cash flow predictable, and your business stronger.

The key is to act now in these first weeks of the new year, while you have clarity, momentum, and a full 12 months ahead.

At Boobooks Accounting, we help UK SMEs turn the start of the tax year into a launchpad for success. From software setup to ongoing support, we provide the tools and expertise you need to manage your finances with confidence, not stress

Upgrade your bookkeeping systems.

Book your new tax year planning session today.