Bookkeeping that runs itself.
Full MTD-compliant bookkeeping, invoicing, and tax submission — free for every UK sole trader. The only accounting app freelancers actually need.
Running a business is hard enough.
Your accounting shouldn't be.
Receipts scattered everywhere
Shoeboxes, wallets, email folders — you know they're somewhere. It just shouldn't be this hard.
Spreadsheets that never add up
Manual entry, copy-paste errors, broken formulas. Hours lost to work that should be automatic.
VAT returns that take all day
Manually calculating boxes, logging into HMRC, double-checking every number. There has to be a faster way.
Tax deadlines feel bigger than they should
Gathering documents, second-guessing deductions, filing at the last minute. It doesn't need to be this stressful.
There's a better way.
Solas automates the tedious work so you can focus on what matters — your business. Snap receipts, connect your bank, and let AI handle the rest. When tax time comes, everything's ready.
More than expense tracking.
Complete business accounting.
Most apps help you track receipts. Solas gives you everything: bookkeeping, invoicing, VAT returns, and direct HMRC submission.
Let artificial intelligence handle the tedious work
Smart Receipt Scanning
AI extracts merchant, amount, date, VAT, and line items with 99% accuracy. Even handles split or crumpled receipts.
Auto Receipt Matching
Receipts automatically matched to bank transactions. No more manual reconciliation.
Intelligent Categorisation
Expenses auto-categorised with correct VAT rates. AI learns your business patterns.
AI Tax Assistant
Ask questions about UK tax in plain English. Get instant, contextual answers about your specific situation.
Email Receipt Forwarding
Forward receipts to your Solas email. They're scanned and categorised automatically — no manual upload needed.
Real accounting, not just expense tracking
Double-Entry Ledger
Proper chart of accounts with journal entries. Your books are audit-ready from day one.
Financial Reports
Profit & Loss, Balance Sheet, and Trial Balance generated instantly. Export anytime.
Bank Connections
Connect your bank accounts securely. Transactions import automatically and stay in sync.
Cash Tracking
Track cash payments with funding source. Never lose sight of non-card expenses.
HMRC-ready from the start
MTD VAT Returns
Calculate and submit VAT returns directly to HMRC. Standard, Flat Rate, and Cash Accounting supported.
Self Assessment
SA103 form data generated automatically. Export ready for your tax return.
Quarterly ITSA
Submit quarterly income updates to HMRC for Making Tax Digital ITSA compliance.
Tax Estimates
See your estimated tax liability in real-time. No January surprises.
Equipment & Capital Allowances
Track business assets with AIA relief, pool-based depreciation, and disposal. Solas applies the right allowance.
Loss Claims
Carry forward or set off business losses against other income. Solas handles the HMRC rules.
Get paid faster with polished invoices
Invoice Creation
Professional invoices with line items, VAT, and your branding. Send in seconds.
Client Portal
Clients view invoices online. Track when they're opened and downloaded.
Customer Management
Store client details, addresses, and VAT numbers. Auto-fill on new invoices.
Payment Tracking
Mark invoices paid, track partial payments. Match to bank transactions automatically.
Claim every deduction you're entitled to
Vehicle Mileage Tracking
Log business trips and track mileage across multiple vehicles. HMRC rates applied automatically (45p/25p per mile).
Working from Home
Claim WFH deductions using HMRC's simplified method or actual costs. Hours, rooms, broadband and phone — all calculated.
Mileage vs Actual Costs
Not sure which vehicle method saves more? Compare mileage allowance against actual costs with real HMRC data.
Year-End Review
A multi-step guided flow that walks you through your entire tax year. Review income, adjust categories, apply losses, finalise allowances, and submit — all in one place.
Quick Trip Templates
Save frequent journeys and log them in one tap. No re-entering the same route every time.
Plus everything else you'd expect
Why settle for less?
Most expense apps stop at tracking. Solas gives you a complete accounting system with direct HMRC integration.
All of this included free. Premium unlocks actual cost tracking, multiple vehicles, and more.
Get started in minutes
No complicated setup. No learning curve. Just download and go.
Download the app
Get Solas from the App Store and create your account.
Fill in your details
Add your business info, tax year, and VAT scheme.
Connect HMRC
Link your HMRC account for direct VAT and ITSA submissions.
Connect your bank
Securely link your accounts. Transactions import automatically.
Let Solas sort it out
Transactions categorised, receipts matched, tax calculated — automatically.
Security and compliance built in
Your financial data deserves the highest level of protection. We take security as seriously as you do.
Built for MTDOfficial
Designed for Making Tax Digital compliance. Submit VAT returns and quarterly ITSA updates directly to HMRC.
Bank-level security
256-bit encryption protects your data. Secure OAuth connections to banks. We never store your banking credentials.
GDPR compliant
Your data stays yours. Full control over what we access. Delete your account and data anytime with 90-day recovery.
Two-factor authentication
Protect your account with 2FA. An extra layer of security so only you can access your financial data.
Built in the UK
Designed specifically for UK freelancers and sole traders. We understand HMRC because we deal with them too.