Data Migration From Spreadsheets or Legacy Systems
Moving to MTD compatible software should not mean losing history or starting with wrong balances. ABM Chartered Accountants delivers data migration from spreadsheets or legacy systems into Xero, QuickBooks, Sage or FreeAgent, reconciled and signed off before your first submission.
Clean Records From Your First Submission
Data migration from spreadsheets or legacy systems starts with cleansing and mapping your existing records to a chart of accounts built for MTD reporting. We choose a cut-over date aligned to your tax year or VAT quarter, load opening balances from a reconciled trial balance, bring across customer, supplier and asset records, and import the transaction history you need for comparisons and enquiries.
A short parallel run confirms the new system matches the old before we retire it, and archived data is retained to meet HMRC’s record-keeping periods.
Related Making Tax Digital Services
Migration sits between choosing software and running it day to day. These related services complete the transition, from configuration and integrations to training your team on the new platform.
Compatible Software Setup
Selection and configuration of HMRC-recognised software for VAT and Income Tax.
Digital Bookkeeping Setup
Chart of accounts, categories and opening balances built for MTD digital records.
Bank Feed Automation
Live bank feeds, rules and receipt capture that remove manual data entry.
Software Integration
Payroll, invoicing and expense apps connected to your ledger with digital links intact.
MTD Training
Practical software training for owners and staff so records stay accurate all year.
Digital Record Keeping
HMRC-compliant digital records maintained monthly from first entry through to every submission.
Why Migration Needs an Accountant
Balances that reconcile: Opening balances are proved to a trial balance, bank statements and VAT returns before go-live.
Nothing lost: History you need is imported, the rest archived securely for the required retention period.
Clean chart of accounts: Migration is the moment to fix years of inconsistent spreadsheet categories.
Right timing: Cutting over at a tax year or VAT quarter boundary avoids split-period reporting problems.
No double counting: A parallel run and full reconciliation catch duplicates before they reach a submission.
Accounting Data Migration Across London and the UK
ABM Chartered Accountants migrates accounting data from our Canary Wharf office in London and remotely for sole traders, landlords and businesses in Manchester, Birmingham, Leeds, Edinburgh, Bristol, Cardiff and across the UK.
Data Migrations for Every Sector
We migrate landlords from property spreadsheets, contractors from desktop packages, construction firms with CIS history, retailers and hospitality operators from till-based records, healthcare practices from legacy systems and e-commerce sellers from marketplace exports.
Why Choose ABM for Data Migration
Reconciled by Accountants
A qualified accountant proves the migrated balances before you rely on them, which automated tools never do.
Spreadsheet Specialists
We handle messy multi-tab spreadsheets that automated conversion tools reject, cleansing and mapping every single line.
Fixed Fee Migration
Quoted upfront after a short review of your data, with no surprises when complications appear.
How We Work
Initial Consultation
Set Up and Onboard
Ongoing Support
We provide regular reviews and proactive advice to keep your finances optimised and HMRC-compliant.
Get in Touch Today
Whether you need help with your tax return, payroll, VAT, or business advisory, our qualified UK accountants are ready to provide clear, practical guidance for your specific needs.
Book a Consultation
Fill in the form below and one of our expert accountants will contact you promptly to discuss your accounting and tax requirements.
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Data Migration FAQs
Common questions about moving accounting records from spreadsheets or older software into MTD compatible cloud platforms.
How much history should I migrate?
Typically the current and previous financial year as full transactions, with opening balances for earlier periods. Older records are archived and remain accessible for HMRC’s five or six-year retention requirements.
When is the best time to migrate?
At the start of a tax year or VAT quarter, so the new system holds complete periods. If you must move mid-period, we handle the split with a reconciled cut-over.
Can you migrate from Sage or QuickBooks Desktop?
Yes. We use conversion tools where they fit and manual mapping where they do not, then reconcile the result to your final trial balance and VAT returns from the old system.
My spreadsheets are messy, is that a problem?
No. Cleansing inconsistent categories, duplicates and missing dates is a normal part of any migration. We tidy the data before import so your new records start completely clean.
Will my VAT history transfer correctly?
Yes. We bring across VAT returns filed, outstanding VAT balances and scheme settings, and confirm the first VAT return from the new system reconciles to the last from the old.
Can I keep my old system during migration?
Yes. A short parallel run keeps both systems live until we have confirmed the new platform matches the old one. Only then do we retire the old system.