Expense Tracking & Mileage
HMRC-approved mileage rates and home office claims
Track every business expense with HMRC-approved mileage rates and home office calculations. Simplified and actual cost methods for working from home. Expense claim forms with receipt linking for a complete audit trail.
Free during Early Access - No credit card required
Capabilities
HMRC-approved mileage rates for cars, motorcycles, and bicycles
Automatic first 10,000 miles vs. excess rate calculation
Home office cost calculator with simplified (flat rate) method
Home office actual cost method with room proportion calculations
Expense claim forms with receipt linking and approval workflows
Category-based expense tracking aligned to UK GAAP accounts
Travel expense logging for hotels, trains, meals, and parking
Integration with receipt scanning for paperless expense management
How It Works
Log your expenses
Enter expenses manually, scan receipts, or import from your bank statement. Each expense is categorized automatically.
Calculate mileage
Enter your business miles. AccountsOS applies the correct HMRC rate — 45p for the first 10,000 miles, 25p thereafter.
Claim home office costs
Choose the simplified flat rate or actual cost method. The calculator works out your allowable deduction based on your home setup.
Generate claim forms
All expenses flow into your company accounts. Generate expense claim forms for reimbursement with linked receipts.
Use Cases
Client visit mileage
Drive to client meetings and log the round-trip miles. AccountsOS calculates the tax-deductible amount at the correct HMRC rate for your vehicle type.
Working from home
Claim a proportion of your rent, utilities, and broadband as a business expense. Choose between the simple flat rate or detailed actual cost method.
Business travel
Log hotel stays, train fares, meals, and parking when travelling for business. Link receipts for a complete record.
Equipment and supplies
Track purchases of office equipment, software subscriptions, and consumables. Each item categorized for maximum tax relief.
Benefits
Claim every legitimate business expense you are entitled to
Never under-claim or over-claim mileage again
Maximise your home office deduction with the right method
Maintain a complete audit trail for HMRC enquiries
Save time with automated mileage and expense calculations
Reduce your Corporation Tax bill with proper expense tracking
Frequently Asked Questions
What are the current HMRC mileage rates?
For cars and vans: 45p per mile for the first 10,000 business miles per tax year, then 25p per mile. Motorcycles: 24p per mile. Bicycles: 20p per mile. AccountsOS applies these rates automatically.
What is the simplified home office method?
HMRC allows a flat-rate deduction based on hours worked from home: £10/month for 25-50 hours, £18/month for 51-100 hours, and £26/month for 101+ hours. No receipts needed for this method.
When should I use the actual cost method?
If your home running costs are high (expensive area, large house), the actual cost method may give a bigger deduction. You calculate the business proportion of rent, utilities, insurance, and broadband based on room size and usage hours.
Can I claim for both mileage and home office?
Yes. Mileage and home office are separate expense categories. You can claim both as long as the expenses are genuinely for business purposes.
Do I need to keep receipts?
For most expenses, yes — HMRC can request evidence for any claim. AccountsOS stores receipt images digitally alongside each expense, keeping you audit-ready at all times.
How does this affect my Corporation Tax?
All legitimate business expenses reduce your taxable profit, which reduces your Corporation Tax bill. Proper expense tracking ensures you claim everything you are entitled to.
Ready to try Expense Tracking & Mileage?
Get started with AI-powered accounting for your UK limited company.
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