SimpleTaxFlow
Bookkeeping and tax for sole traders and landlords

Simple books. Clear tax.

Your records, invoices, properties and tax work in one calm place.

Keep day-to-day books, understand how you are doing and deal with tax when it needs attention. SimpleTaxFlow supports sole traders, landlords and people with both types of income.

Create free accountSee the 4-step workflow

No card required · Prepare your records free · Subscribe when you are ready to file

  • Bookkeeping and tax together
  • Sole traders and landlords
  • £5/month · billed annually
SimpleTaxFlow
Tax year 2025/26

Good morning, Alex

Your books are up to date.

Bookkeeping health

Receipts and records organised

98%

Income

£35,887

+12%

Expenses

£4,290

-3%

Profit

£31,231

+18%

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Built for compliance. Designed for peace of mind.

  • HMRC recognised

    for MTD for Income Tax

  • UK data hosting

    secure-by-default infrastructure

  • Encrypted data

    protected in transit and at rest

  • One simple platform

    Everything available online

One calm routine

From everyday records to HMRC in four clear steps.

SimpleTaxFlow connects day-to-day bookkeeping with the quarterly MTD work it needs to support.

  1. 01

    Capture

    Add transactions, upload receipts or use optional WhatsApp capture while you work.

  2. 02

    Organise

    Import statements, match evidence and resolve anything that needs your attention.

  3. 03

    Review

    See profit, cashflow and the exact quarterly figures before anything is sent.

  4. 04

    File

    Approve supported MTD updates and send them securely through official HMRC APIs.

One connected tax workflow

Everything you need. All in one portal.

Keep records, invoices, reports, and filing readiness together in a workspace designed for everyday bookkeeping and the complete tax journey.

Capture and organise

Add income and expenses, upload receipts, and review every record online.

Manage invoices

Create invoices and quotes, track payments, and keep income records together.

Understand your finances

See profit, cashflow, unpaid invoices, and the records that still need attention.

Review and file online

Check every figure and submit to HMRC securely from the web portal.

Explore how it works

See the journey from everyday records to reports and tax filing.

More than quarterly submissions

Manage the rest of your tax picture, whenever you need to.

These tools remain available from the Tax workspace. You do not need to begin a quarterly submission to find them.

Tax calculations

Review your latest tax position from the Tax workspace.

Available anytime

Year-end tax return

Work through year end and final declaration in one place.

Available anytime

CIS deductions

Maintain Construction Industry Scheme deduction records.

Available anytime

UK savings interest

Review interest from UK bank and building society accounts.

Available anytime

UK dividends

Maintain dividends and other supported UK distributions.

Available anytime

Foreign dividends

Review supported dividends from companies overseas.

Available anytime

Built around the way you earn

MTD bookkeeping that understands your income.

Visit the MTD resource hub

For self-employment income

Sole traders and freelancers

Keep business expenses, invoices, receipt evidence and tax work together, whether you are a consultant, tradesperson, freelancer or side hustler.

Explore the sole trader workspace

For UK property income

Landlords

Organise individual properties, assign rent and costs, keep supporting documents close and stay ready for UK property tax.

Explore the landlord workspace

For mixed qualifying income

Sole trader and landlord

See self-employment and UK property businesses separately where HMRC requires it, while managing the wider MTD journey in one portal.

Explore the combined workspace
Pricing

Simple, transparent pricing.

Set up, keep records and prepare your filing free. Start the 30-day trial when you submit your first HMRC obligation, then pay £60 once a year.

See every included feature
  • Sole Traders
  • Freelancers
  • Landlords
  • Side Hustlers
Billed annually

SimpleTaxFlow

£5

/month equivalent

  • Free bookkeeping and filing preparation
  • 30-day trial starts when you first submit to HMRC
  • £60 charged once per year
  • Quarterly MTD submissions
  • Tax calculations, supported income sources, and year-end tax return
  • Web receipt uploads with smart data extraction
  • Standalone mileage log with three-month backfilling
  • CSV and Excel imports and reconciliation
  • Property portfolio, rent schedules, arrears, and reminders
  • Invoices, recurring invoices, quotes, and supplier bills
  • Projects, assets, cash-flow planning, and accountant collaboration
  • Bank sync planned
Create free account

No card required to get started. One £60 payment per year after the trial.

Got questions? We have answers.

Got questions? We have answers.

Ready when you are

Ready to take the stress out of tax?

Join sole traders and landlords keeping digital records, reviewing their figures and meeting supported MTD obligations confidently online.

Create free accountSee how it works

No card required until you are ready to submit to HMRC