Let Property Campaign
UK tax glossary · Last reviewed: April 2026
The Let Property Campaign (LPC) is HMRC's voluntary disclosure programme for individuals who have not declared all rental income. Landlords who come forward voluntarily pay lower penalties than those who are investigated and caught by HMRC.
To use the LPC, you notify HMRC of your intention to disclose, calculate the tax, interest, and penalties owed for all relevant years, and make payment. The process can be done online. HMRC gives 90 days to calculate and pay after notification.
Penalties under the LPC for unprompted disclosure (you approach HMRC before they approach you) are typically 0–30% of the unpaid tax. Prompted disclosure (HMRC contacts you first) attracts higher penalties of 15–30% minimum.
Common questions
How far back will HMRC go for undeclared rental income?
For careless errors, HMRC can assess up to 6 years back. For deliberate understatement, up to 20 years. Voluntary disclosure under the LPC generally limits exposure and reduces penalties.
What if I cannot afford to pay the back tax in one go?
HMRC can agree a Time to Pay arrangement, spreading payments over a period. Mention your financial position when making your disclosure and HMRC will usually accommodate reasonable requests.
Related resources
TaxHelper provides general information based on published HMRC rates and guidance. It is not regulated financial or tax advice. For decisions involving significant sums, complex circumstances, or if you are unsure, speak to a qualified accountant or HMRC directly.