Making Tax Digital: Digital Records, Digital Links and the Income Tax Timetable
Filing through software is the visible half of MTD. The half that fails inspections is the digital links rule: once data enters your VAT records it must move between systems electronically, and a spreadsheet re-keyed by hand breaks the chain.
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Quick answer: MTD for VAT applies to all VAT-registered businesses regardless of turnover. You must keep specified records digitally, file through compatible software, and maintain unbroken digital links so data moves between systems electronically rather than being copied by hand. MTD for Income Tax Self Assessment phases in from April 2026 by income band.
The Rule That Actually Fails Inspections
Most businesses meet MTD's visible requirement — they file through software. The requirement that quietly fails is digital links.2
Once data is in your digital VAT records it must move between systems electronically. Any point where a human reads a number from one place and types it into another breaks the chain, even if the number is correct.
✅ A digital link
Linked cells, formulas, imports, API transfers, emailing a spreadsheet for import.
❌ Not a digital link
Retyping a total into the return, or copying and pasting between spreadsheets.
The common break is the last step. Records are digital, the filing is digital, and one person copies the nine box totals from a spreadsheet into the software by hand. Everything looks compliant and the chain is broken at the final link.
Spreadsheets Are Allowed
MTD did not ban spreadsheets. It banned manual transfer. A spreadsheet connected to filing software by bridging software satisfies the rule, and for many small businesses that is a perfectly reasonable setup.
What matters is tracing the path a figure takes from source document to submitted return and confirming no step in it depends on someone typing.
What Must Be Digital
The requirement covers specified VAT records rather than every scrap of paper: your business details and VAT registration number, the schemes you use, and for each supply the time, value and rate of VAT. Underlying invoices do not all have to be digitised, though many businesses do so anyway.1
The Income Tax Timetable
MTD extends beyond VAT. Income Tax Self Assessment phases in from April 2026, with the threshold stepping down in April 2027 and again in April 2028, so businesses enter scope in waves according to qualifying income.3
Two things to note. It is based on qualifying income rather than profit, so a business with slim margins can still be caught. And the bands have been revised before, so confirm the current figures on GOV.UK rather than working from a number quoted elsewhere.
Fix the links once. A business already MTD-compliant for VAT with genuinely unbroken digital links has done most of the work for Income Tax. The reverse is also true: a broken chain now becomes a bigger problem later.
Penalties Are Points-Based
Late submission accrues points rather than an immediate fine, with a financial penalty once the threshold is reached, and late payment penalties operate separately. The practical effect resembles the US position in penalties and interest: filing on time matters independently of whether tax was due.
The Five-Step Method
- Confirm you are in scope. MTD for VAT covers all VAT-registered businesses, so registration alone brings you in regardless of turnover.
- Keep the specified records digitally. Hold the required VAT records in software or a spreadsheet rather than on paper or in a manual ledger.
- Trace every digital link end to end. Follow your data from source to submission and identify any point where a figure is retyped or copy-pasted, because that breaks the chain.
- File through compatible software. Submit returns via software that connects to HMRC, using bridging software if your records live in spreadsheets.
- Diarise the Income Tax phases. Check which qualifying income band applies to you and note whether your start date falls in April 2026, 2027 or 2028.
Continue the chain
- UK VAT registration threshold — when MTD obligations begin.
- Penalties and interest — the equivalent consequence in the US system.
- EU ViDA explained — the same digital-reporting direction in the EU.
- Inc VAT vs ex VAT — the pricing side of registration.
Frequently asked questions
Quick answers to the most common questions users ask.
Who does MTD for VAT apply to?
Every VAT-registered business, regardless of turnover. The original turnover threshold was removed, so voluntary registrants below the registration threshold are within scope too.
What is a digital link?
An electronic transfer of data between software programs without manual intervention. Linked cells, imports, API transfers and formatted files all qualify. Retyping a figure or copying and pasting between spreadsheets does not.
Can I still use spreadsheets?
Yes, provided they are digitally linked to compatible filing software, typically via bridging software. The spreadsheet itself is not the problem — a manual re-key between it and anything else is.
What records must be kept digitally?
Broadly the business name and address, VAT registration number, schemes used, and for each supply the time, value and rate of VAT. Not every underlying document has to be digital, but the specified VAT records do.
When does MTD apply to Income Tax?
MTD for Income Tax Self Assessment phases in from April 2026 for the highest qualifying income band, extending to lower bands in April 2027 and April 2028. The bands are set by qualifying income rather than profit.
What happens if I do not comply?
HMRC operates a points-based penalty system for late submission alongside penalties for late payment. Points accumulate for missed deadlines and a financial penalty follows once a threshold is reached.
References
- Making Tax Digital for VATHM Revenue & Customs↩
- VAT Notice 700/22: Making Tax Digital for VATHM Revenue & Customs↩
- Making Tax Digital for Income Tax Self AssessmentHM Revenue & Customs↩
Primary sources are linked directly. Rates and thresholds change on their own schedules — always confirm against the issuing authority before relying on a figure.
Work out the VAT on a figure
Add or remove UK VAT before it reaches your digital records.
Related guides
Keep reading — these cover the next step in the same chain.
All rates, thresholds, and regulatory guidance cited on this page are sourced from official government publications and non-partisan research institutions.
International Tax Bodies
European Commission — VAT Guide
Comprehensive portal for VAT rates and rules across all 27 EU member states, including B2B/B2C regulations.
ec.europa.euOECD — Consumption Tax Database
Global comparative data on VAT/GST structures and consumption tax trends across OECD member nations.
oecd.orgProfessional & Industry Organizations
TaxesLedger is an independent educational tool. We are not affiliated with any government agency. Rate records include source metadata and verification status; always confirm with your jurisdiction's official Department of Revenue before filing. Last registry update: September 11, 2026.
· Rate source metadata is tracked in the TaxesLedger tax data registry.
