Good record keeping is one of the biggest challenges for trading card sellers. Many sellers grow quickly, sell across multiple platforms, and deal with large volumes of small transactions. Without proper records, it becomes difficult to prove profits, support VAT positions, or respond confidently to HMRC if questions arise.
This guide explains what HMRC expects from trading card sellers and how to stay compliant as your business grows.
What records do trading card sellers need to keep?
HMRC requires self employed individuals and companies to keep accurate business records. For trading card sellers, this typically includes:
- Sales records from all platforms
- Platform payout statements
- Invoices and receipts for stock purchases
- Shipping and packaging costs
- Platform and payment processing fees
- Grading and authentication invoices
- Mileage and travel records
- Bank statements for business activity
These records should be kept for at least five years after the relevant tax year.
Tracking sales across multiple platforms
Many trading card sellers use a mix of platforms such as marketplaces, live selling apps, social media, and card shows. HMRC expects all sales to be included, not just those paid into your main bank account.
A common mistake is relying only on payout totals. Instead, you should:
- Record gross sales
- Separately record fees and refunds
- Reconcile payouts to sales reports
This provides a clear audit trail if HMRC ever asks questions.
Stock records and cost of sales
Stock is one of the most important areas for trading card sellers. HMRC expects you to keep records that show:
- What stock you purchased
- When you purchased it
- How much it cost
- When it was sold
This applies whether you buy singles, sealed products, bulk collections, or mixed lots.
Clear stock records help ensure:
- Profits are calculated correctly
- VAT margin scheme eligibility can be supported
- Personal collecting is separated from business stock
Second hand cards and VAT evidence
If you use the VAT margin scheme for eligible second hand cards, HMRC requires specific evidence. This can include:
- Seller details
- Purchase price
- Date of purchase
- Description of the cards
Without this evidence, HMRC may disallow the margin scheme and assess VAT on the full selling price.
Common record keeping mistakes card sellers make
Some of the most common issues include:
- Mixing personal and business transactions
- Losing purchase evidence
- Not tracking stock properly
- Relying on platform summaries instead of detailed records
- Falling behind on bookkeeping during busy selling periods
These mistakes often only become obvious during a tax return or VAT review.
How proper systems make life easier
Using cloud accounting software and structured processes can make record keeping far easier. With the right setup, you can:
- Automate transaction imports
- Track expenses consistently
- Reconcile sales accurately
- Prepare tax returns with confidence
This also reduces stress if HMRC ever asks for information.
Why specialist support matters
Trading card sellers face unique challenges around stock, VAT, and platform selling. A specialist accountant helps you:
- Set up compliant record keeping systems
- Stay on top of bookkeeping
- Support VAT positions
- Respond confidently to HMRC queries
Strong records are not just about compliance. They also help you understand profitability and make better decisions as you grow.