Making Tax Digital for Income Tax Self Assessment (MTD for ITSA) went live in April 2026 for sole traders and landlords earning above £50,000. If your practice is not fully ready, you are not alone — many accountants and bookkeepers are still working through client onboarding, software migrations, and the messy reality of getting digital records in order. The good news is that catching up is very achievable with the right process, and bank statement conversion is often the fastest route to getting client data into shape.
Why are so many practices still behind on MTD for Income Tax?
The April 2026 deadline arrived quickly after years of delays and restarts. HMRC postponed MTD for ITSA multiple times since its original 2018 target, which led many firms to delay their own preparation. When the deadline finally landed, a significant number of practices found themselves with clients who had done little or nothing to keep digital records.
The challenges breaking down most commonly into three areas:
- Clients with paper records or legacy PDF bank statements they have not digitised
- Software mismatches, where clients use one tool and the practice uses another
- Missing transaction data from earlier in the 2025/26 tax year that needs to be reconstructed
The HMRC soft landing period provides some breathing room on penalties for the first year of MTD for ITSA, but digital record keeping must still be in place. Practices that wait risk accumulating a backlog that becomes genuinely difficult to clear before the first quarterly update deadlines.
What are the MTD for Income Tax bank statement requirements?
MTD for Income Tax requires that all income and expense transactions are recorded digitally, with a clear and traceable audit trail. The legislation does not mandate a specific file format, but records must be kept in software that is compatible with HMRC's MTD API. You cannot submit a handwritten spreadsheet or a scanned document as your digital record.
In practice, this means that raw bank statements — whether from Lloyds, Barclays, HSBC, NatWest, or any other UK bank — need to be converted into a structured digital format that your accounting software can read. Most MTD-compatible software accepts transactions as CSV or OFX files before categorisation.
Here is what HMRC actually requires you to record digitally for MTD for ITSA:
| Record type | Detail required | Acceptable format |
|---|---|---|
| Business income | Date, amount, source | Digital entry in MTD-compatible software |
| Business expenses | Date, amount, category | Digital entry in MTD-compatible software |
| Property income (if applicable) | Date, rent received, property reference | Digital entry in MTD-compatible software |
| Bank transactions | Must be traceable to source | CSV, OFX, or direct bank feed |
HMRC's full guidance on MTD for ITSA record keeping is published at gov.uk/guidance/use-making-tax-digital-for-income-tax.
How do you convert bank statements for MTD compliance quickly?
For most practices catching up, the bottleneck is not software — it is getting the raw transaction data out of PDFs and into a usable format. Clients arrive with three months of Barclays PDF statements, or a bundle of Starling Bank exports, and none of it is in the right format for QuickBooks, Xero, or FreeAgent.
Converting a PDF bank statement to CSV is the single fastest way to move historical bank data into MTD-compatible software. A tool like the bank statement converter at convertbank-statement.com/convert handles the most common UK bank formats — including Barclays, Lloyds, NatWest, HSBC, Halifax, Monzo, and Starling — and outputs clean CSV or OFX files you can import directly into your accounting platform.
The step-by-step process for catching up looks like this:
- Gather all client bank statements for the relevant period. For the 2025/26 tax year, you need from 6 April 2025 onwards.
- Export or download statements as PDFs from the client's online banking. Most UK banks allow PDF downloads going back 12 months.
- Convert each PDF to CSV using a bank statement converter. This typically takes under two minutes per statement.
- Review the output for any merged rows, split transactions, or formatting issues. Good converters flag these automatically.
- Import the CSV into your accounting software using the platform's bank import feature.
- Categorise transactions and reconcile against any existing records.
- Submit the first quarterly update via your MTD-compatible software.
For practices with high volumes, batch processing statements is far more efficient than converting one at a time. Check the pricing page at convertbank-statement.com/pricing for practice account options that handle bulk uploads across multiple clients.
Which accounting software is MTD for Income Tax compatible?
HMRC maintains a list of recognised MTD for ITSA compatible software. As of April 2026, the main options used by UK practices include:
- Xero — supports MTD for ITSA quarterly updates and final declarations
- QuickBooks Online — MTD for ITSA ready, with direct HMRC submission
- FreeAgent — popular with sole traders and freelancers, fully MTD compliant
- Sage Accounting — supports MTD for ITSA with bridging options
- TaxCalc — used by accountants for filing, with MTD submission support
The full HMRC-recognised software list is available at gov.uk/guidance/find-software-thats-compatible-with-making-tax-digital-for-income-tax.
If your client is using spreadsheets, they will need bridging software to transmit their data to HMRC's API. This is a legitimate option under MTD rules, but it adds a step to every quarterly submission. For most sole traders, moving to a dedicated cloud accounting platform is simpler in the long run.
The ICAEW has published practical guidance on MTD software selection for practices at icaew.com/technical/technology/tech-news-and-articles/2025/making-tax-digital.
What is the fastest way to triage your client list right now?
If you have 30 or 40 clients in scope for MTD for ITSA and no clear picture of who is ready, start with a simple triage. Within a week you can have a clear view of your exposure.
Sort clients into three groups:
Group A — Already digital. These clients have a bank feed running into MTD-compatible software. Check that the software is registered with HMRC and that quarterly updates are scheduled. These clients need minimal work.
Group B — Partial records. These clients have some digital records but gaps — usually the early months of the tax year or a second bank account that is not connected. For these clients, a bank statement conversion exercise fills the gaps. Typically one to three hours of work per client.
Group C — No digital records. These clients are still on spreadsheets or paper. They need a complete onboarding: software setup, historical statement conversion covering April 2025 to now, and categorisation. Allow half a day per client.
Group C is where most practices find their workload concentrated. For a practice with ten Group C clients, batch-converting bank statements and using a consistent import template across all of them dramatically reduces the total time involved.
For a broader comparison of bank statement conversion tools and which formats they handle best, the best bank statement converter guide for 2026 covers the main options used by UK accountants.
AccountingWeb's community forums have also been tracking MTD implementation challenges in real time — worth checking for peer experience at accountingweb.co.uk.
James Cooper is a chartered accountant with over 10 years of experience helping UK practices manage financial records, software migrations, and tax compliance workflows.
Frequently asked questions
Q: Is MTD for Income Tax now mandatory in April 2026? A: Yes. MTD for ITSA became mandatory from 6 April 2026 for sole traders and landlords with qualifying income above £50,000 per year. The £30,000 threshold applies from April 2027.
Q: What happens if a client misses their first MTD quarterly update? A: HMRC operates a points-based penalty system for late MTD submissions. Each missed quarterly update earns one penalty point. Once a client reaches the points threshold — four points for quarterly filers — HMRC issues a £200 fixed penalty. The soft landing in the first year reduces some late filing penalties, but the points accrue regardless.
Q: Can I use a PDF bank statement as a digital record for MTD? A: No. A PDF is not considered a digital record under MTD rules. The transaction data must be held in MTD-compatible software and submitted via HMRC's API. You need to convert PDF statements to CSV or OFX and import them into compliant software.
Q: How far back do I need to import bank transactions for MTD for ITSA? A: For the 2025/26 tax year, you need digital records from 6 April 2025. If a client has incomplete records for earlier in the year, you should reconstruct these from bank statements before submitting the first quarterly update.
Q: Does HMRC require every bank transaction to be categorised before submission? A: For quarterly updates, you submit summary totals of income and expenses by category — not individual transactions. However, the underlying transaction-level digital records must exist and be available if HMRC investigates. Categorisation must be complete before the final declaration.
Q: Which UK banks produce PDFs that are easiest to convert for MTD purposes? A: Monzo and Starling produce clean, machine-readable PDFs that convert with very high accuracy. Barclays, Lloyds, and NatWest PDFs are well-supported by most conversion tools but occasionally require manual checks on multi-page statements. HSBC business account PDFs can include merged cells in complex statements and benefit from a dedicated UK bank statement converter rather than a generic PDF tool.
Last reviewed: 2026-04-17
