Bitcoin salary can leave PAYE underfunded when its sterling value changes between calculation, withholding and HMRC payment. PAYE, employee NIC and employer NIC are calculated and reported in GBP. This applies even if the employee receives Bitcoin.
Can employees legally receive bitcoin pay?
Employees can receive Bitcoin as employment income. The wage agreement and payroll treatment must be clear in GBP.
Contract, consent and payslips
Written consent should cover the valuation source, payment timing, wallet checks, network fees and failed transfers. The payslip must show gross GBP earnings, PAYE, employee NIC and the Bitcoin value settled. Showing only a BTC amount is not enough.
Three ways to structure the pay
A GBP salary plus an optional Bitcoin bonus is usually easier to control than a whole salary paid in Bitcoin. It keeps core wages in cash. It also limits crypto price exposure.
The tax bill always remains payable in GBP.
| Pay model | GBP wage certainty | Price-risk window | Main employer control |
|---|
| 100% Bitcoin salary | Must be written into GBP contract | From valuation to transfer | Tax reserve in GBP |
| GBP salary plus BTC bonus | High for core wages | Bonus amount only | Set a capped GBP bonus |
| Provider buys BTC after payroll | High if net pay is fixed | Often minutes to hours | Check provider and wallet controls |
Tax payroll treatment for bitcoin pay
Bitcoin must be converted to a recorded sterling value at the relevant payroll point. That value is used for PAYE, Income Tax and National Insurance.
Bitcoin that can readily be sold through trading arrangements will often be a readily convertible asset (RCA). Employers should usually treat mainstream Bitcoin payments as RCAs. An adviser should document any different view. PAYE and Class 1 NIC should then be operated through payroll. Send RTI on or before payday.
RCA and non-RCA compared
A non-RCA conclusion is not a free pass. It may change the tax method. It can also create reporting questions that need specialist review.
| Issue | Bitcoin treated as RCA | Bitcoin not treated as RCA |
|---|
| PAYE and RTI | Usually operated through payroll | Specialist review needed |
| NIC | Class 1 for employee and employer | Class 1A or other treatment may arise |
| Employee Self Assessment | May still apply for later gains | May be needed for income tax |
| Employer risk | Under-withheld PAYE and NIC | Wrong classification and reporting |
A worked monthly payroll calculation
This illustration uses 2025/26 England NIC thresholds and monthly gross pay of £5,000. It also uses Bitcoin at £100,000 per BTC. Actual tax depends on the employee’s code and year-to-date earnings.
| Payroll item | Illustrative amount |
|---|
| Gross remuneration and recorded BTC value | £5,000 = 0.05000000 BTC |
| PAYE Income Tax | £952.67 |
| Employee Class 1 NIC | £267.50 |
| BTC retained or sold for deductions | 0.01220170 BTC (£1,220.17) |
| Net BTC transferred | 0.03779830 BTC (£3,779.83) |
| Employer Class 1 NIC | £687.45 |
| Total employer cost | £5,687.45 |
Where Bitcoin employment income has RCA payroll treatment, identify the PAYE due amount. This is the Income Tax due under PAYE on the Bitcoin given.
If the employer transfers all Bitcoin, it may fund PAYE withholding itself. The employee should usually repay that tax under the crypto wage agreement. The agreement, Bitcoin payslips and payroll ledger should show the GBP amount owed. They should also show the repayment method.
If the employee does not repay the tax within 90 days after the tax year ends, problems can follow. Employer-paid tax may become extra taxable earnings. This can create further PAYE underfunding.
This is a key HMRC payroll risk. It can arise even when the Bitcoin transfer and RTI report were on time.
Run an audit-ready crypto payroll process
Separate the payroll valuation, Bitcoin transfer and HMRC payment dates. Hold PAYE and NIC funds in GBP before releasing Bitcoin.
Use one written valuation rule: use the BTC/GBP mid-market rate from a named exchange at 12:00 on payroll cut-off day. Save the source page or API record. Save the timestamp, calculation, approver and transaction hash. You can use a different rate, but it must be consistent and evidenced.
Fund tax before sending bitcoin
Set aside the GBP PAYE and NIC amount when payroll is approved. If Bitcoin is bought after calculation, set a price tolerance. Include exchange and network fees. Require approval if the purchase cost exceeds that tolerance.
Keep evidence and secure custody
Keep a full chain from contract to valuation, payslip, RTI, wallet transfer and HMRC payment. Provider records alone may not prove the GBP value reported.
Good records protect both the employer and employee.
- Keep the signed contract, employee consent, GBP salary, wallet verification and destination address.
- Keep the exchange name, price source, timestamp, BTC amount, fees, transaction hash and transfer receipt.
- Match each payslip, RTI submission, HMRC payment receipt and ledger entry to the same payroll reference.
- Use dual approval, wallet whitelisting, key recovery procedures and an incident log for custody risks.
- Check a provider's Financial Conduct Authority registration status where relevant under the Money Laundering Regulations 2017.
This guidance is less relevant where Bitcoin is not employment pay. Examples include a truly independent contractor's business income or a non-employee incentive. It also differs when an employee buys Bitcoin from net GBP pay. Internationally mobile staff, offshore employers, salary sacrifice and complex token incentive plans need tailored advice before payment.
Your questions answered
Can my employer pay me in bitcoin?
Yes, if the agreement states the underlying GBP pay. The employer must also meet minimum wage requirements and other employment duties.
Do employers pay PAYE on bitcoin salary?
Usually yes, where Bitcoin is an RCA. The employer calculates deductions from a recorded GBP value.
Can an employee pay all tax through Self Assessment?
No, where PAYE withholding applies. Later Bitcoin sales can still create further tax obligations.
What bitcoin price should payroll use?
Use a consistent named GBP market source. Record its timestamp for every payroll run.
What happens if bitcoin falls before HMRC is paid?
The employer still owes the calculated GBP PAYE and NIC. It should keep a GBP tax reserve.
Does a crypto payroll provider take the risk away?
No. The employer remains responsible for PAYE, NIC, RTI and employment records.
Does receiving bitcoin create capital gains tax?
It can, when the employee later sells or gives away Bitcoin. Its employment-income value is usually the starting cost.
A safe decision before first payday
Offer Bitcoin wages only after payroll, finance, HR and security teams can show their controls. They should also complete a dry run.
Approve only a controlled model
Choose a GBP base salary with a capped Bitcoin bonus. Or convert net pay through a checked provider. These models reduce price exposure.
Escalate unusual facts early
Seek UK tax advice for non-RCA conclusions and unpaid tax recovery. Get advice for offshore workers, salary sacrifice or token plans too.
