- The IRS has recovered over eight billion dollars from whistleblowers since the program began in two thousand seven.
- The United Kingdom’s new scheme offers fifteen to thirty percent rewards for recovering at least one point five million pounds.
- The United States provides a mandatory award track whereas the United Kingdom maintains discretionary control over payments.
The IRS said July 28, 2026 that whistleblower information helped the government recover more than $8 billion since the program began in 2007 and that it had paid more than $1.4 billion in awards. The agency also promoted its IRS program through IRS.gov/submitatip, a centralized online reporting tool for tax violations.
The Whistleblower Office describes the channel as a secure reporting process. The figures cover the program’s results since 2007.
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The US system offers a defined route to payment in qualifying cases. Under section 7623(b), the dispute must exceed $2 million, while individual taxpayers must have gross income above $200,000 for at least one tax year at issue.
Congress has also moved to change the program. The House passed the IRS Whistleblower Program Improvement Act on April 27, 2026, by a 346-10 vote.
The courts are examining the program’s limits. On July 28, 2026, the Tax Court granted the IRS summary judgment in Whistleblower 6388-17W v. Commissioner of Internal Revenue, focusing attention on whether a tip substantially contributed to proceeds the government collected.
The two systems set different conditions for payment
The UK has introduced a separate incentive structure for major cases. HMRC’s Strengthened Reward Scheme covers serious tax noncompliance involving large corporations and wealthy individuals, including offshore accounts and tax avoidance arrangements.
Program summaries place its start on different dates. One says the scheme took effect on April 6, 2026, while another legal update places its launch on November 26, 2025. Both describe the same framework now operating.
Whistleblowers can receive 15% to 30% of tax collected when their information leads to at least £1.5 million in recovered tax. The calculation excludes penalties and interest.
The payment rules remain different from those in the United States.
| Feature | United States | United Kingdom |
|---|---|---|
| Reward structure | Mandatory award track under section 7623(b) for qualifying cases | Discretionary reward under the strengthened scheme |
| Main threshold | Amount in dispute exceeds $2 million; individual gross income above $200,000 for at least one tax year at issue | At least £1.5 million in recovered tax |
| Payment range | A qualifying mandatory-award track | 15% to 30% of tax collected |
| Covered conduct | Tax violations reported through the Whistleblower Office | Serious noncompliance involving large corporations and wealthy individuals |
| Exclusions or limits | Courts assess whether information substantially contributed to collected proceeds | Penalties and interest excluded; no guaranteed payment or right of appeal if HMRC declines |
HMRC’s approach gives the department control over the final reward decision. A whistleblower has no guaranteed payment and no right of appeal if the department refuses to pay.
UK disclosures show a narrow pipeline into investigation
The government’s whistleblowing statistics for 2025 to 2026 recorded 36 disclosures held for intelligence only. Another 12 proceeded to further investigation.
Those figures show how information moves through the UK system. A disclosure can remain an intelligence record rather than become an active investigation.
The scheme targets high-value cases rather than every tax complaint. Its stated focus includes offshore accounts and arrangements designed to avoid tax.
The US program has a longer record of recoveries and awards. The House vote and the IRS’s online channel add institutional support as the agency continues using whistleblower information in enforcement cases.
The Tax Court ruling adds a separate constraint. A tip must make a substantial contribution to proceeds that officials ultimately collect, and courts are reviewing that connection closely.
For tax-year purposes, the US eligibility rule refers to at least one tax year at issue, while the UK statistics cover the period 2025 to 2026. These are enforcement-program measures, not filing instructions for a particular return.
The two countries therefore enter 2026 with different bargains for informants. The US offers a clearer path toward a mandatory award when statutory conditions are met. The UK has created a high-value incentive, but HMRC still decides whether a payment will be made.
The next cases will test both systems: the IRS’s contribution standard in court and HMRC’s discretion over rewards reaching 15% to 30% of collected tax.
This article is for informational purposes only and does not constitute tax advice. Consult a qualified tax professional or CPA about your specific situation.
