CARF may capture information reported by cryptoasset service providers, but it does not clear an employer's UK payroll obligations. Crypto salary, bonuses or token awards still need classification, GBP valuation, and the right PAYE, NIC, RTI, or P11D route.
Classify crypto before you run payroll
Classify the transfer by its purpose and terms, then choose the tax route. Crypto paid for work will often be employment income. This applies even when no pound sterling enters the employee's wallet.
Salary, bonuses and token awards
Put contractual crypto salary and work-related bonuses through payroll unless specialist facts point elsewhere. Enter the gross GBP value in payroll. Calculate PAYE and Class 1 NIC where due. Submit RTI on or before payday. Issue the normal P60.
Benefits and expense repayments
Use the benefit route only where the facts support a benefit rather than pay. A non-cash perk for personal use may be a benefit in kind. A genuine, documented business-expense repayment may be exempt.
Practical decision rule: If the transfer rewards work, start with payroll. If it gives personal value outside ordinary pay, test the benefits rules. If it repays a documented business cost, test the expense exemption before reporting it.
The key question is why the employee received the tokens.
Set a GBP value at the right time
Record a reasonable GBP value when the employee receives or can access the cryptoasset. A month-end price is not always correct. Payroll closing at month-end does not make that price correct.
Choose the payment time
Write down the exact time that the employee could use, sell or transfer the tokens. Record the date, local time, time zone, and transaction reference. Do this where vesting or restrictions delay access.
Keep the valuation evidence
Keep a valuation pack that another person can rebuild without guessing. Save the token quantity and GBP price. Save the source, timestamp, and transaction hash or platform reference. Also save the conversion method and internal approval.
Receiving tokens through employment and selling them later are usually separate tax events. Think of them as two receipts on different dates. Each may need a different tax calculation.
For example, an employee receives 0.05 Bitcoin as a Bitcoin bonus. Its documented GBP value is £3,000. The £3,000 is considered for employment income, PAYE reporting, and relevant NIC treatment at that point.
If the employee later sells that Bitcoin for £3,800, the £800 movement may matter for capital gains tax. This depends on the employee's full circumstances and applicable pooling rules.
The employee should keep the employer's payslip and valuation record. They help show the acquisition value for the later calculation. This rule applies even if the tokens stay in the same wallet after payroll.
Report it through RTI, P11D and NICs
Match each classified payment to its reporting channel before submitting year-end forms. RTI, P11D reporting, payrolling benefits, and National Insurance are separate tasks. Do not treat them as one filing.
Use this reporting matrix
| Employee scenario | Likely route | Employer action | Core evidence |
|---|
| Contractual crypto salary | Earnings | PAYE, Class 1 NIC and RTI | Contract, GBP value, wallet record |
| Discretionary Bitcoin bonus | Usually earnings | PAYE, Class 1 NIC and RTI | Approval, valuation, deduction record |
| Personal-use crypto benefit | Benefit, subject to facts | Payroll benefit or P11D, Class 1A NIC where due | Policy, value and employee notice |
| Genuine business expense repayment | Potential exemption | Keep records; report only if exemption fails | Receipts and business purpose |
| Restricted token award | May involve securities rules | Review before payroll or year-end filing | Plan rules, restrictions, valuation |
Separate CARF from payroll
CARF reporting does not replace employer PAYE, RTI, P11D or NIC duties. A platform transaction statement may support transfer evidence. It does not file the employer's Full Payment Submission.
For most ordinary crypto salary and bonus arrangements, enter the documented GBP value through payroll. Submit RTI on or before payday. Keep the valuation pack. Use P11D reporting only after confirming payroll or registered benefit payrolling did not already cover the item.
The typical error is to report the same value twice.
Check pensions and common reporting traps
Stop and review the scheme terms if tokens are called pension contributions or have restrictions. A direct exchange-token transfer is not automatically a qualifying employer contribution. The transfer may need payroll or securities analysis.
Test restricted and tradable tokens
Assess readily convertible assets from the facts, not from an exchange listing alone. Check liquidity and transfer restrictions. Check market access, lock-ups, available buyers, and dealing arrangements.
Check deadlines and employee records
Give payroll, finance and the employee the same core figures. Confirm the payment date and valuation source. Confirm the payroll entry, RTI submission, P11D decision, NIC route, and kept evidence.
This guide is not the main route for independent contractors invoicing in crypto. It does not cover employee capital gains on a later disposal. It also does not cover a third party's CARF reporting duties. Complex token awards, securities-option arrangements, internationally mobile employees, and pension cases need plan documents, payment flow, and full facts.
For pensions, first check whether the receiving arrangement is a registered pension scheme. Then check its trust deed, provider terms, and investment process. These must permit the proposed asset and transfer method.
A direct token delivery to a wallet does not prove a valid employer pension contribution. It may be employee pay. It may also be an employment-related asset transfer needing payroll or securities analysis.
The normal pension tax outcome depends on the legal contribution and scheme acceptance. It also depends on valuation, timing, accounting, and the employer's business facts. Any employer corporation tax deduction depends on those facts too.
A cash employer contribution, paid through the scheme's accepted process, is usually easier to evidence than a token transfer.
Common questions
Does crypto salary go on a P11D?
Crypto salary normally goes through PAYE payroll and RTI, not a P11D. Apply Class 1 NIC where due. Do not duplicate an amount on a P11D because payment was made in tokens.
When is a crypto P11D due?
A P11D is normally due by 6 July after the tax year ends. File it only for reportable benefits. Do not file it for items already handled through registered payrolling.
Does CARF cover a UK employer's crypto payroll?
No, CARF does not cover a UK employer's PAYE, RTI, P11D, or NIC obligations. It is a reporting framework for relevant cryptoasset service providers. It does not replace employer reporting.
What value should payroll use for bitcoin pay?
Payroll should use a reasonable GBP value when Bitcoin is paid or made available. Keep the price source and timestamp. Also keep the quantity, transaction reference, and conversion method.
Does an employee pay tax again when selling?
An employee may have capital gains tax when later selling employment-related tokens. Their starting value will usually link to the amount already treated as employment income.
Put the records in order
Build one payment file before the next payroll deadline. Include the contract or approval and token terms. Include the transfer record, valuation evidence, payroll calculation, RTI confirmation, and employee communication.
The essentials:- Classify why the employee received crypto before choosing payroll or benefits reporting.
- Use a documented GBP value at payment or availability time, not a convenient later price.
- RTI, P11D, Class 1 NIC, and Class 1A NIC have separate triggers.
- CARF and exchange records may support evidence, but do not meet employer PAYE duties.
- Escalate restricted tokens, pension arrangements, and employment-related securities before filing.
A cryptoasset payroll process also needs a plan for funding deductions. For example, a £4,000 crypto salary becomes available on payday. Payroll should calculate PAYE and Class 1 National Insurance from the GBP earnings figure.
This applies even when the employee receives tokens rather than cash. Before transfer, document how deductions will be funded. The employee may provide cash, or enough cash pay may be available.
Another lawful arrangement may fund the liability. Sending the full token amount does not remove the withholding obligation.
HR should keep the agreement and employee communication. Finance should approve valuation evidence and the wallet transfer. Payroll should reconcile the gross value, deductions, Full Payment Submission, and payslip.
Further reading
If you want to learn more about this topic, these sources may interest you:
