To choose accounting software well, start with the work your business needs to complete and the decisions you want to make. A familiar brand or long feature list is not enough. The right system should produce reliable records, fit the way people actually work and make useful information easier to see.
A poor fit creates workarounds: spreadsheets beside the system, duplicated data, unreconciled bank feeds and reports nobody trusts. Those hidden costs can be much greater than the monthly subscription.
Start with the business, not the software
Write down the transactions and tasks that happen every week. Include who performs them, who approves them and what tends to go wrong. A consultant, online retailer, property business and construction subcontractor may all need accounting software, but their workflows are very different.
- How are sales created: quotes, recurring invoices, a till, projects or an online shop?
- How are purchases approved, captured and paid?
- Do you hold stock, track jobs, bill time or manage multiple locations?
- Who performs bookkeeping and who reviews it?
- Which figures do directors need weekly or monthly?
- What information must move between payroll, banking, expenses and other systems?
This needs list becomes your selection scorecard. It also prevents an impressive demonstration from distracting you with features the business will never use.
1. Check tax and filing requirements
The system must support the obligations that apply to your business. That may include Making Tax Digital for VAT, Construction Industry Scheme records, payroll submissions or Making Tax Digital for Income Tax.
Making Tax Digital for Income Tax is being introduced in phases for eligible sole traders and landlords. It started from 6 April 2026 for qualifying income over £50,000. The thresholds then reduce to more than £30,000 from 6 April 2027 and more than £20,000 from 6 April 2028, based on the relevant earlier tax return. HMRC provides current guidance on choosing compatible MTD software.
Compatibility is the minimum requirement, not the buying decision. Confirm what the product can file directly, whether bridging software is required and which subscription level contains the needed feature.
2. Test bank feeds and reconciliation
A bank feed can save time, but automation is not the same as reconciliation. The system should help users match receipts and payments, identify duplicates, deal with transfers and explain the difference between the ledger and the bank statement.
During a trial, import or recreate a realistic week of transactions. Test refunds, bank charges, part-payments, transfers and a customer who pays several invoices in one amount. If the simple demonstration works but the exceptions do not, the business will still need manual work.
3. Review invoicing and credit control
Look beyond the invoice template. Consider recurring invoices, deposits, stage billing, credit notes, payment links, customer statements and automated reminders. Check whether the aged debt report agrees with individual customer accounts and gives the credit-control team enough detail to act.
Fast, accurate invoicing supports better business cash flow. A system that delays billing or hides disputes can cost more than its subscription saves.
4. Decide what reporting the business really needs
Standard profit-and-loss and balance-sheet reports are only a starting point. Growing businesses may need departments, projects, locations, budgets, cash-flow views, stock margins or comparisons with the prior year.
Ask a decision-led question: “Can the system show which service line is profitable after direct labour?” is better than “Does it have reporting?” Confirm that the chart of accounts and tracking structure can produce the answer without rebuilding it in a spreadsheet every month.
Our forecasting and management accounts team can help define the reporting structure before the software is configured.
5. Check integrations, but control the data flow
Connections to e-commerce, payment, expenses, payroll, stock or job-management tools can remove duplicate entry. They can also duplicate sales, post fees incorrectly or use the wrong tax code when the mapping is poorly designed.
- Which system is the master record for customers, products and tax codes?
- How often does data move and what happens when a sync fails?
- Can transactions be traced back to the source?
- Who reviews exceptions and integration errors?
- Will the connection still work on the proposed subscription plans?
6. Consider controls, access and security
Not every user should be able to change bank details, approve bills, edit past periods or submit a VAT return. Review user permissions, approval workflows, audit trails, period locks and multi-factor authentication.
Also ask how data is backed up, how long documents are retained and how access is removed when someone leaves. Cloud software reduces some technical maintenance, but the business still owns the responsibility for user access and process controls.
7. Calculate the total cost
Compare more than the headline monthly price. Include additional users, payroll, expense capture, project tracking, support, payment fees, integrations, implementation, training and the accountant’s access.
Then consider the cost of the current process. Hours spent entering data twice, correcting errors or producing manual reports are genuine costs. A more expensive product can be better value when it removes those problems; a complex product can be worse value if nobody uses it properly.
8. Test support and data portability
Ask how support is delivered and test it with a real question during the trial. Check the available training, response times and whether specialist help costs extra.
You should also know how to leave. Can you export transactions, contacts, attachments, reports and audit history in a useful format? Data portability matters if the business grows, changes adviser or later discovers that the product is not suitable.
A practical accounting software scorecard
Score each shortlisted product from 1 to 5 against the same weighted criteria:
- Compliance and tax functionality
- Sales, purchase and bank workflows
- Reporting and management information
- Integrations and exception handling
- User experience and training
- Permissions, security and audit trail
- Total three-year cost
- Support and data portability
Mark any non-negotiable requirement as pass or fail. A high total score should not rescue a product that cannot handle a critical VAT treatment, stock process or filing obligation.
Plan the switch carefully
The start of a financial year can be a convenient migration date, but it is not always necessary. The quality of the cut-over matters more than the calendar. Agree what data will move, who owns each task and how balances will be checked.
- Reconcile bank, VAT, debtors and creditors before migration.
- Clean customer, supplier and product records.
- Decide how much transaction history and which attachments to import.
- Map the chart of accounts and tax codes.
- Load and verify opening balances.
- Test invoices, reports, integrations and filing access.
- Train users around their real roles.
- Keep the old system accessible for audit and reference.
Do not run two live ledgers for longer than necessary. Parallel working can feel safe, but it often creates uncertainty about which set of records is correct.
Choose a system you can operate well
The best accounting software is not necessarily the product with the most features. It is the system your team can use consistently to create accurate records, meet obligations and support decisions.
London Accountants can review your workflow, compare suitable options, design the chart of accounts and support the migration. Explore our accounting solutions, our bookkeeping support or contact the team before committing to a new platform.
