Making Tax Digital · Sole traders
Using a phone for MTD filing between trade jobs
ONLY£15A MONTHA phone can make records and reporting accessible while you are away from a desk.
A phone can make records and reporting accessible while you are away from a desk. The practical advantage is being able to review information where you already work. Complete any phone task only when safely parked or otherwise stopped, with enough time to understand the figures.
Use small tasks during the working week
Attach receipts, add job references and identify private purchases while the details are fresh. Larger reconciliation or tax questions may deserve a dedicated session with more screen space. A mobile workflow should support careful review rather than compress every task into a brief gap.
Check the current Avona mobile or browser workflow and supported features. Do not assume that every desktop action, document view or import behaves identically on a phone. Test the process before relying on it near a deadline.
Prepare before the final submission
Confirm the business, period and completeness of the records. Open the summary and inspect unusual totals. If a document is difficult to read or a question remains unresolved, finish the review in a setting where you can address it properly.
Use a trusted connection and protect the device. Avoid sending access links or sensitive screenshots to yourself through insecure or shared channels just to make the task easier.
Worked example: recording a supplier purchase
A plumber photographs a supplier receipt after parking, adds the job reference and identifies a private item on the same invoice. At the later quarterly review, the explanation is already attached.
The final submission may then be brief because the preparation is complete. That does not mean every first update, backlog or complex tax question can be handled from a van in two minutes.
A review that checks more than the total
Start with coverage: the correct person, business and period, plus all relevant accounts and cash records. Then look at completeness. A feed can be connected today while still missing an earlier week. Confirm the earliest and latest transactions against the source.
Next, inspect unusual items. Large transfers, loan receipts, refunds, net settlements and private purchases often need more context than a bank description provides. Check for duplicate imports where a statement overlaps a live feed. An automatic warning is useful evidence to investigate, not proof that the entry must be removed.
Finally, review category totals. A category unexpectedly showing zero, a large increase or a negative amount deserves an explanation. You do not have to make every annual tax adjustment at this stage, but you should understand the records behind the summary you approve.
HMRC explains what quarterly updates contain. Keep the approved version and the resulting acknowledgement together. If something later changes, correct the source record and use the software's supported update process so you can explain which figures are current.
Share the information needed for the task
Tax records need to be useful without containing unnecessary personal detail. Keep payment references sufficient to reconcile the accounts, and hold sensitive client notes in the appropriate restricted system. Financial software should not become a second, informal store for clinical notes or identity documents.
Use individual accounts and the access controls available for the service. Remove access when a working relationship ends. A secure product can still be misused through shared sign-ins, forwarded access links or files sent to the wrong person.
For Open Banking, distinguish account-information access from payment initiation. Read the consent screen and check the authorised provider. Account-information permission does not itself authorise moving money, but Open Banking as a whole also includes separately authorised payment services. The FCA explains these different services.
If you need an assurance about encryption, hosting, retention or security testing, ask for the current documented answer. Terms such as “bank-grade” do not tell you which controls apply to a particular service. Choose a workflow whose permissions and responsibilities you understand, and protect the email or phone account used to recover access.
Keep the evidence connected to the figures
Your digital record should explain the amount, date and nature of the transaction. Keep the invoice, receipt, statement or other evidence that supports it. A photograph can make a paper document easier to retain, but a folder of photographs alone does not create complete transaction records.
For sole traders, HMRC normally requires business records to be kept for at least five years after the relevant 31 January filing deadline. Keep them longer where the rules for a late return, enquiry or other circumstances require it. Check the record-retention guidance.
Make the records usable by your future self. Include a short explanation where a bank description is vague, retain the calculation behind a business-use split and make corrections traceable. For a missing receipt, try the supplier account, email confirmation or a replacement invoice before relying on incomplete evidence.
At review time, compare your records with the bank or payment account and investigate differences. Equal totals are useful, but two errors can cancel each other out. A sample of individual transactions can reveal a duplicated purchase or an omitted customer receipt that a totals-only check misses.
Verify the result before closing the screen
After submitting, check HMRC's accepted outcome and retain the evidence. If reception drops and the result is unknown, verify status before trying again. A tap on a button is an action; a confirmed accepted response is the evidence of completion.
Take the next step
Avona.app offers a self-service route from £15/month. Bring your records together, review the figures and choose a workflow that fits your business. For professional help, discuss the scope and total price of Avona Concierge, managed by chartered accountants, before choosing a service.