10 steps to streamline tax preparation for your practice

Published Thursday 11 June 2026

Table of contents

1. Organise and review client data
2. Automate repetitive tasks
3. Standardise data collection
4. Use financial reports to ensure accuracy
5. Maintain clear communication
6. Reconcile accounts regularly
7. Use tax software and integrations
8. Prepare for Making Tax Digital
9. Refine your workflows
10. Conduct a post-tax season review
11. FAQs on tax preparation

Key takeaways

• Organising client data early, standardising how you collect documents, and automating repetitive admin tasks can save significant time during tax season.
• Making Tax Digital for Income Tax Self Assessment is now live for individuals with qualifying income over £50,000, with the threshold dropping to £30,000 from April 2027 and £20,000 from April 2028.
• Tax software with direct HMRC filing, bank feeds, and reconciliation predictions reduces manual work and improves accuracy across your entire client base.
• Regular account reconciliation, clear client communication, and post-season reviews help you refine your processes year on year.

1. Organise and review client data

Every transaction needs to be accounted for before you can start preparing tax returns. When clients are slow to provide receipts or leave gaps in their records, the whole process takes longer than it should.

Get ahead of this by organising and reviewing client data well before the deadline. Make sure you have all client records, including bank statements, receipts, bills, and invoices, ready to reconcile and code accurately.

Communicate deadlines early and regularly so they stay front of mind for your clients. In the rush of running a business, they can easily overlook compliance requirements. Consistent reminders help avoid penalties.

It is also worth running preliminary reviews of client accounts a month or two before you plan to draft their returns. This gives you time to identify discrepancies or missing information without the pressure of an approaching deadline.

To simplify document collection, consider using a single system that captures everything in one place. Hubdoc, included with Xero, lets your clients photograph a receipt and upload it directly. Hubdoc extracts the transaction details and captures them in Xero, ready for you to match and code.

With all your clients sharing evidence through the same system, you only have one process to manage. There is no risk of a lost paper receipt or invoice holding up your progress.

2. Automate repetitive tasks

Some tasks demand your expertise and professional judgement, while others are prime candidates for automation. Repetitive, admin-heavy jobs keep you from deeper, more strategic client work.

Start small. Automate recurring invoices on behalf of your clients so they go out on schedule without you needing to press send each month. From there, set up automated invoice follow-ups to help your clients maintain healthy cash flow.

With Xero, the automation options go further. Bank feeds automatically pull in transactions from your clients' bank accounts. Reconciliation predictions speed up bookkeeping by suggesting matches for transactions based on past data. You can also schedule bill payments and invoices, so routine tasks are completed without extra admin on your part.

3. Standardise data collection

Receiving information from clients in multiple formats means juggling multiple processes. Physical receipts need scanning and manual entry. PDF invoices sent via email need downloading and re-uploading. These are admin steps you can do without.

Standardising how you collect data removes this friction. Start by letting clients know exactly what documents and information you need for tax preparation. Create a checklist that outlines everything required, for example, expense receipts, bank statements, and interest statements for income tax.

Give clients clear instructions and firm deadlines that leave you time to chase missing items. Choose a single digital system for data collection so everything is captured securely in the cloud. Hubdoc removes the need for manual data entry entirely and gives you a consistent process across your entire client base.

4. Use financial reports to ensure accuracy

Financial reports play a key role in tax preparation. They help you spot inaccuracies, missing data, and potential issues before filing. Set time aside to generate reports and review them with clients to confirm everything is accurate. Comparing current reports with previous years can highlight discrepancies and show how their performance has changed.

Reports also help your clients plan for their tax bill. By seeing gross and net profit laid out clearly, you can estimate how much they will owe. Doing this ahead of time gives clients a better opportunity to set funds aside.

With Xero, if reconciliations are up to date, you can generate accurate reports in a few clicks using live accounting data. Compare current and previous tax years to track performance, and share reports securely with your clients from inside Xero.

5. Maintain clear communication

While much of the complex compliance work falls to you, clear communication with clients throughout tax preparation helps everyone play their part.

Consider setting practice deadlines ahead of HMRC deadlines so you have everything you need from clients in good time. Communicate these deadlines through multiple channels: phone, email, and in person. A shared digital calendar can also help clients track what is due and when.

Providing regular tax preparation status updates keeps clients informed and helps them anticipate when their input is needed. Schedule time to discuss outstanding items and any questions they may have.

Clear communication within your team matters just as much. A single project management system helps you track client tasks in one place. Xero Practice Manager gives you a complete system for assigning, tracking, and delivering tasks. You can see job status at a glance, assign work to your team, and check their capacity before taking on more.

6. Reconcile accounts regularly

Whether you or your clients handle reconciliation, doing it regularly makes tax preparation far smoother.

Clients find it easier to recall what a transaction was for when it is reconciled close to the date it occurred. Sourcing a receipt from last week is also much simpler than tracking one down from last year.

Regular reconciliation is more manageable because you are breaking the work into smaller, frequent tasks. A little reconciliation each month or quarter is far less daunting than tackling a full year in one go.

7. Use tax software and integrations

Modern accounting software can handle many tax preparation tasks that would otherwise eat into your time. Here are some practical examples:

• Document capture: Your clients can photograph receipts, invoices, and bills with their smartphones and upload digital copies directly to their accounting software, removing the need for manual data entry.
• Bank feeds: Clients connect their bank account to the software so income and expenditure flows in automatically, giving you real-time visibility of their transactions.
• Tax return population: The software pulls bookkeeping records into a draft tax return for you to review and finalise, so there is no need to copy figures across manually.

With Xero Tax, you also get a direct connection to HMRC for online filing. A live testing feature lets you check drafted returns with HMRC to see whether they will be accepted before you submit. These features reduce errors and cut down the manual admin that slows you down at tax time.

8. Prepare for Making Tax Digital

Making Tax Digital is the biggest compliance shift facing UK accountants and bookkeepers. MTD for VAT has been in place for several years, and MTD for Income Tax Self Assessment is now live for the first cohort of taxpayers. Your practice needs to be operating effectively under the new requirements.

Who is affected and when

MTD for ITSA has been live since 6 April 2026 for individuals with qualifying income over £50,000 from self-employment or rental property. The threshold drops to £30,000 from April 2027, and then to £20,000 from April 2028. Qualifying income is gross income before expenses.

Under MTD for ITSA, affected clients must submit five returns per year: four quarterly updates plus one final declaration. This is a significant change from the current single annual return, and it affects how you plan your workload across the year.

How to prepare your practice

Start by identifying which clients will be affected in each phase. Review their income levels against the thresholds and begin conversations early about what will change.

Make sure your practice uses MTD-compatible software that can handle quarterly submissions and connect directly to HMRC. Building quarterly reporting into your existing workflows now will make the transition smoother when the deadlines arrive.

If you are still refining your quarterly submission process, consider running a focused review with a small group of clients to identify any gaps. This helps you strengthen your workflows ahead of the next threshold drop in April 2027.

9. Refine your workflows

Taking a closer look at your tax preparation processes will help you spot opportunities to simplify or speed things up.

If you lack a single system for managing tasks, time can be wasted duplicating work or overlooking unassigned jobs. Practice management software helps everyone stay on track and makes it easier to see progress at a glance.

You can also delegate more effectively by checking your team's capacity and reviewing which tasks can be passed to other members. Batching tasks is another option: one person could be responsible for gathering evidence, another could handle income tax preparation, and so on.

Xero Practice Manager lets you view your team's capacity and progress on tasks, making it straightforward to delegate to the right person. With a clear view of deadlines, deciding which work should be prioritised becomes easier too.

With Xero Tax, you can assign specific roles to your team, such as "preparer" and "reviewer", so team members have permission to complete certain tasks in the software. This helps you control quality and ensure work is completed to a high standard.

10. Conduct a post-tax season review

Once all returns are filed, it is time to review what worked and where you can improve.

While tax preparation is still fresh, you are likely to spot opportunities to make things run better. Get your practice team together to discuss what went well and what did not. Once you have identified areas for improvement, create a plan with clear ownership and deadlines. Track changes to see whether they are making a difference.

Include your clients in the review process too. Their feedback could help you deliver a better experience. Ask if there is anything you can do to make tax return preparation smoother, whether through a feedback form or a quick conversation.

Streamline tax preparation with Xero

From automated bank feeds and document capture to direct HMRC filing and practice management tools, Xero brings together everything you need to run tax season efficiently. With MTD for Income Tax now live and further thresholds rolling out from April 2027, having the right software in place means your practice is ready for every stage.

The Xero Partner Programme gives you free access to practice tools, dedicated support, and resources designed to help your practice grow. Join the partner programme to get started.

FAQs on tax preparation

Here are some frequently asked questions about tax preparation for UK accountants and bookkeepers.

How can accountants prepare clients for Making Tax Digital?

Start the conversation early. Many clients are unaware of MTD for Income Tax or assume it only affects VAT-registered businesses. Set up a brief onboarding session to explain the quarterly submission schedule, what records they need to keep digitally, and how your practice will manage the process on their behalf. Proactive communication reduces last-minute confusion and helps you plan your workload across the year.

What software do you need for MTD for Income Tax?

You need HMRC-recognised software that can maintain digital records and submit quarterly updates electronically. Xero is MTD-compatible and offers direct HMRC filing, automated bank feeds, and reconciliation tools that support the shift to quarterly reporting.

How do you streamline tax preparation for multiple clients?

The key is managing variability. Group clients by complexity level and stagger your onboarding so you are not chasing documents from everyone at once. Prioritise your most complex clients first, then batch similar client types together so your team can work through them efficiently using a repeatable process.

What documents are needed for UK tax preparation?

The specific documents depend on the client's circumstances, but typically include bank statements, expense receipts, sales invoices, payroll records, and interest or dividend statements. For self-employed clients, you will also need records of all business income and allowable expenses. Creating a standardised checklist for each client type helps ensure nothing is missed.

What happens if a client misses an MTD for Income Tax deadline?

Clients who fail to submit their quarterly updates or final declaration on time may face penalties from HMRC. The penalty regime uses a points-based system, where points accumulate for each missed submission and a financial penalty is triggered once the threshold is reached. Helping clients set up automated reminders and building quarterly submissions into your practice workflow can reduce this risk significantly.