Accounting Software for Sole Trader and Small Trade Limited Company: Setup, MTD-IT and CIS Filing

Quick Answer: A sole trader trade in 2026 typically needs FreeAgent (£0 if NatWest/Mettle banking, otherwise £19/month), QuickBooks Simple Start (£14/month) or Xero Starter (£15/month). A small trade limited company needs the next tier up — QuickBooks Essentials (£24/month), Xero Standard (£30/month), or FreeAgent Premium (£32/month) — to handle Corporation Tax, P&L by department, and multi-user access. Making Tax Digital for Income Tax Self Assessment (MTD-IT) becomes mandatory in April 2026 for £50k+ self-employed earners and April 2027 for £30k+. CIS (Construction Industry Scheme) handling is built in to all four major UK packages and reduces sub-contractor admin from days to minutes per month.

Summary

The right accounting software depends on three things: legal structure (sole trader vs limited company), turnover (and therefore MTD-IT and VAT thresholds), and operational complexity (single-trade jobs vs multi-employee, multi-job, multi-CIS subcontractor business). For most UK trades the choice is between four products — QuickBooks Online, Xero, FreeAgent, and Sage Business Cloud Accounting — all of which are MTD-VAT and MTD-IT compatible per HMRC's published compatibility list.

The market has matured significantly since 2018. The "free spreadsheet" era is over — MTD-IT requires digital records and digital links from April 2026. The "desktop only Sage 50" era is also closing — cloud-based packages have caught up on features and surpassed on usability. By 2026, almost every UK trade above £30k turnover should be on a major cloud accounting platform.

The decision matrix is straightforward. Sole trader, simple, single banking with NatWest/Mettle: FreeAgent free is the obvious choice. Sole trader, accountant relationship matters: QuickBooks Online Simple Start has the deepest accountant ecosystem. Limited company, growing team: Xero Standard for cleanest UI and best bank reconciliation, or QuickBooks Essentials for accountant ubiquity. Larger limited company with payroll, complex VAT: Xero with payroll add-on, or Sage 50cloud Accounting for legacy-Sage relationship retention.

Key Facts

• MTD-IT mandatory threshold (April 2026) — £50,000+ self-employment turnover
• MTD-IT mandatory threshold (April 2027) — £30,000+ self-employment turnover
• MTD-VAT mandatory threshold — £85,000 turnover (in force since 2019)
• VAT registration threshold (2025/26) — £90,000 turnover
• Corporation Tax small profits rate (2025/26) — 19% on profits up to £50,000
• Corporation Tax main rate (2025/26) — 25% on profits over £250,000 (marginal rate between)
• Self-Assessment payment dates — 31 January (balance + Q1 payment on account), 31 July (Q2 payment on account)
• CIS deduction rates — 20% (verified subcontractor), 30% (unverified), 0% (gross payment status)
• CIS300 monthly return — required from contractors paying CIS subcontractors
• MTD compatible software list — published on gov.uk, updated quarterly
• QuickBooks Online range — £14–£36/month + VAT (Simple Start, Essentials, Plus)
• Xero range — £15–£42/month + VAT (Starter, Standard, Premium)
• FreeAgent — £0 for NatWest/RBS/Mettle/Ulster banking; otherwise £19–£32/month
• Sage Business Cloud range — £14–£36/month
• Sage 50cloud Accounting (legacy desktop+) — £30–£100+/month
• Bookkeeper rates (UK) — £25–£45/hour
• Accountant for sole trader return — £300–£600/year
• Accountant for small Ltd company — £900–£2,400/year

Quick Reference Table

Detailed Guidance

Sole trader vs limited company — the structural decision

Before choosing software, choose structure. The two main UK options:

Sole trader — simplest structure. Income taxed via Self-Assessment (income tax + Class 2/4 National Insurance). No separation between personal and business legal liability. Annual return on Self-Assessment.

• Pros: Simple to set up (HMRC self-employed registration, no Companies House)
• Cons: Personal liability for business debts, less tax-efficient above ~£40k profit
• Software needs: focused on Self-Assessment, expense capture, MTD-IT compliance

Limited company — separate legal entity. Profits taxed via Corporation Tax, then dividends/salary to director via PAYE/Self-Assessment. Personal liability ring-fenced.

• Pros: Limited liability, tax-efficient above ~£40k profit, professional appearance
• Cons: More admin (Companies House confirmation statement, annual accounts), more accountant cost
• Software needs: Corporation Tax, dividend handling, multi-user access, departmental reporting

For a single-person trade earning under £40k profit, sole trader is usually right. For £40–80k+, limited company structure becomes tax-advantageous and the software step-up matches.

MTD-IT — what it actually requires

Making Tax Digital for Income Tax Self Assessment, mandatory from April 2026 (£50k+) and April 2027 (£30k+):

What you must do:

1. Keep digital records of all business income and expenses
2. Use MTD-compatible software with digital links throughout
3. Submit quarterly updates to HMRC (4 per year)
4. Submit a final declaration replacing the annual self-assessment return
5. Pay tax according to the same Self-Assessment payment schedule (no change to dates)

What "digital links" means:

• Bank feeds (automated, not manual entry)
• Receipt capture via app (not paper retained for year-end)
• Invoice generation in software (not Word documents emailed)
• Spreadsheet bridging is permitted but not recommended

Software you can use:

• All four major UK products (QuickBooks Online, Xero, FreeAgent, Sage Business Cloud) are MTD-IT certified
• Smaller and specialist products on HMRC's compatibility list
• Spreadsheet + bridging software (e.g. Vital Tax) is technically allowed but expensive vs adopting full software

For sole traders below the threshold (under £30k from 2027): MTD-IT remains optional. But adopting compatible software now removes the rush when you cross the threshold.

MTD-VAT — already mandatory

Making Tax Digital for VAT has been mandatory since April 2019 for £85k+ turnover, and April 2022 for all VAT-registered businesses (including voluntary registrations). All four major accounting packages handle MTD-VAT submission natively.

VAT registration thresholds:

• Mandatory registration: turnover above £90,000 (2025/26 threshold)
• De-registration: turnover falls below £88,000
• Voluntary registration: any turnover, often beneficial for B2B trades to reclaim input VAT

For a B2C trade (working for homeowners), VAT registration adds 20% to invoice values that customers can't reclaim — sometimes pushing business below the customer's price tolerance. Many small B2C trades stay just below £90k turnover deliberately.

CIS — the trade-specific tax

The Construction Industry Scheme requires contractors paying construction subcontractors to deduct tax at source from labour element of payments:

• 20% for verified, registered subcontractors
• 30% for unverified subcontractors
• 0% for subcontractors with gross payment status (must apply to HMRC and meet criteria)

Contractor obligations:

• Verify each subcontractor with HMRC before first payment
• Deduct CIS tax from payment (only on labour, not materials)
• Submit monthly CIS300 return to HMRC
• Pay CIS deducted to HMRC by 22nd of following month
• Issue payment and deduction statements to subcontractors

Subcontractor obligations:

• Register with HMRC (CIS registration form)
• Keep records of CIS deducted
• Reclaim CIS deducted via self-assessment (sole trader) or against Corporation Tax (limited company)

All four major packages handle CIS:

• QuickBooks: CIS module included in all UK tiers
• Xero: CIS handling on Standard and above
• FreeAgent: CIS for sole traders and limited companies
• Sage: CIS handling on Cashbook and Accounting tiers

The monthly CIS300 return generation, which used to be a 3–4 hour paper exercise, is a 5-minute task in modern software — verify subbies, tag invoices, submit return.

Payroll — when you need it

For sole traders with no employees: no payroll required.

For limited companies where the director takes a salary: PAYE registration with HMRC required, and payroll software needed for monthly Real-Time Information (RTI) submissions. Add-on cost:

• Xero Payroll: £5–£10/month per employee
• QuickBooks Payroll: £4–£8/month per employee
• FreeAgent Payroll: included in Pro tier
• Sage Payroll: £8–£15/month per employee
• BrightPay (standalone): £10–£15/month flat for small employee numbers

For a single-director limited company taking £12,570/year salary (the personal allowance, 2025/26), payroll is mandatory but light — 12 monthly RTI submissions per year, no PAYE or NI to actually pay.

For 2+ employees, payroll becomes more substantial — auto-enrolment pension contributions, sick pay tracking, holiday pay, P60s and P11Ds at year-end.

Bookkeeper vs accountant — different products

A common confusion is the distinction:

• Bookkeeper — does the day-to-day data entry, bank reconciliation, invoice management. Hourly rate £25–£45/hour. Works inside your accounting software. Often a remote service for small trades.
• Accountant — does the year-end statutory accounts (limited company) or self-assessment (sole trader), tax planning, advice. Annual fixed fee £300–£600 (sole trader) or £900–£2,400+ (limited company).

For a sole trader: doing the day-to-day yourself in software, then paying an accountant for year-end is the standard. For a small limited company: paying a bookkeeper £80–£200/month for weekly reconciliation, then an accountant £900-£2,400/year for statutory work, is common.

Bank feeds — the productivity multiplier

Modern accounting software's biggest single feature is the bank feed — automated import of transactions from your business bank account, with machine-learning matching against invoices and expenses.

UK banks with reliable feeds (in 2026):

• Mettle (NatWest digital) — best FreeAgent integration; free
• Starling Business — best Xero/QuickBooks integration; free up to £100k
• Tide — good QuickBooks integration; free + paid tiers
• Monzo Business — API-based, good QuickBooks integration
• HSBC, Barclays, Lloyds, NatWest, Santander business — Open Banking feeds, all reliable
• Cashplus, Anna — alternative business banks with reasonable feed support

The bank feed is the input to weekly reconciliation. 30 minutes/week of reconciliation in software replaces 4–6 hours of paper-shuffling at year-end and removes the risk of missing transactions.

Receipt capture — MTD-IT essential

For MTD-IT compliance from April 2026, receipts must be captured digitally:

• In-app capture: QuickBooks Receipt Snap, Xero+Hubdoc, FreeAgent mobile app, Sage Capture
• Third-party tools: Dext (£20–£40/month), AutoEntry (often included with accountant package)

The workflow on site: pay for materials → before leaving the till, photo the receipt with the accounting software's app → app extracts amount, date, supplier → tag against the relevant job or expense category → reconciles automatically when payment clears the bank.

For a typical trade, this is 30 seconds per receipt, replacing the old workflow of stuffing receipts into the van glovebox and finding most of them at year-end.

Reports a trade business needs

Beyond invoicing and expenses, the standard reports a trade business should run:

• Profit and Loss (P&L) — monthly, shows income vs expenses
• Balance Sheet — quarterly, shows assets and liabilities
• Cash Flow Statement — monthly, especially for businesses with payment-on-account customers
• Aged Debtors — weekly, who owes you money and how long they've owed
• Aged Creditors — weekly, what you owe and when due
• Job Profitability — per major job, quote vs actual cost, margin %
• VAT Liability — quarterly, Box 1–9 reconciliation before submission
• CIS Statement (if CIS-active) — monthly, for CIS300 return

All four major packages produce these reports out of the box. Reading and acting on them weekly is the difference between a trade that "feels busy" and one that knows its margins.

Frequently Asked Questions

What's the cheapest accounting software for a UK trade?

For NatWest, RBS, Mettle, or Ulster Bank business banking customers: FreeAgent is free. For others: QuickBooks Online Simple Start at £14/month + VAT, or Xero Starter at £15/month + VAT. Both are MTD-VAT and MTD-IT compatible. Below this price point, you're looking at spreadsheet-only options that won't work for MTD-IT from April 2026/2027.

Do I need different software for VAT and Self Assessment?

No. All four major packages (QuickBooks, Xero, FreeAgent, Sage) handle both MTD-VAT submissions and MTD-IT submissions in one package. Quarterly VAT returns and quarterly MTD-IT updates can both be produced from the same data.

Should I use the same software my accountant uses?

It helps. Your accountant can collaborate directly in your software, run reports, make adjustments, and produce year-end accounts faster than if they're translating from a different system. Most accountants are QuickBooks- and Xero-trained; FreeAgent has a smaller accountant ecosystem but is well-supported. Sage 50 is preferred by older established practices. Ask your accountant before committing.

Can I switch from one package to another?

Yes. Most providers offer free migration assistance and the major packages can import each other's data via CSV export. The migration takes a few hours of admin and a month of parallel running to verify data accuracy. Most common switches: Sage 50 → Xero, or QuickBooks Online ↔ Xero. The disruption is small if you choose a quiet period (e.g. early in a tax year) for the switch.

What happens if I don't comply with MTD-IT?

From April 2026 (or April 2027 depending on your turnover), penalties for non-compliance escalate:

• Late submission penalty points (4 in a year triggers £200 penalty)
• Late payment interest at HMRC rate (currently around 7%)
• Failure-to-notify penalty (up to 100% of tax due in extreme cases)
• HMRC enquiry risk for businesses still on paper records

The penalties are designed to be uncomfortable but not fatal — but the cumulative risk of non-compliance for a serious trade is high. Adopt compliant software early.

Regulations & Standards

• The Income Tax (Digital Requirements) Regulations 2021 — primary MTD-IT regulation

• The Value Added Tax (Amendment) Regulations 2018 — MTD-VAT regulation

• The Companies Act 2006 — limited company accounting record-keeping

• The Corporation Tax Act 2010 — Corporation Tax framework

• The Income Tax (Trading and Other Income) Act 2005 — sole trader income reporting

• The Construction Industry Scheme Regulations 2005 — CIS framework

• The Income Tax (Pay As You Earn) Regulations 2003 — PAYE framework

• The Pensions Act 2008 — auto-enrolment workplace pensions

• HMRC MTD compatible software list — published online, updated quarterly

• HMRC — Making Tax Digital for Income Tax — primary HMRC guidance

• HMRC — Construction Industry Scheme — CIS framework

• GOV.UK — VAT registration thresholds — current thresholds

• Companies House — limited company filing requirements

• The Pensions Regulator — auto-enrolment guidance

• invoicing software comparison including trade-specific job tools — for the invoicing-side comparison

• self-assessment tax return mechanics — for the HMRC submission process

• MTD overview including compliance dates — for the regulatory framework

• CIS deductions, returns and reclaim handling — for CIS detail

• limited company structure, formation and tax — for the structural decision