Due-diligence red flags are the early signals that a target is worth less, or carries more liability, than the seller's narrative suggests: opaque related-party dealings, customer concentration, unexplained margin swings, deferred maintenance, or gaps in contracts and consents.
For a board, missing them means overpaying or inheriting problems that surface after the cheque clears. This research note sets out how red flags typically present in your chosen jurisdiction and industry, and a structured framework for ranking them by severity and probability.
It covers the scenarios in which seemingly minor issues compound, and the warning indicators experienced acquirers watch for.
It also sets out realistic impact ranges drawn from published deal post-mortems, the controls that contain each one, and explicit guidance on when to bring in deal counsel, forensic accountants and specialist diligence advisers. It is research, not advice.
Reference material for informed readers, not advice.
Country Select country... Singapore Cambodia Indonesia Malaysia Philippines Thailand Vietnam United Kingdom United States United Arab Emirates Australia Afghanistan Åland Islands Albania Algeria American Samoa Andorra Angola Anguilla Antarctica Antigua and Barbuda Argentina Armenia Aruba Austria Azerbaijan Bahamas Bahrain Bangladesh Barbados Belarus Belgium Belize Benin Bermuda Bhutan Bolivia Bonaire, Sint Eustatius and Saba Bosnia and Herzegovina Botswana Bouvet Island Brazil British Indian Ocean Territory Brunei Bulgaria Burkina Faso Burundi Cabo Verde Cameroon Canada Cayman Islands Central African Republic Chad Chile China Christmas Island Cocos (Keeling) Islands Colombia Comoros Congo Cook Islands Costa Rica Croatia Cuba Curaçao Cyprus Czech Republic Denmark Djibouti Dominica Dominican Republic DR Congo Ecuador Egypt El Salvador Equatorial Guinea Eritrea Estonia Eswatini Ethiopia Falkland Islands Faroe Islands Fiji Finland France French Guiana French Polynesia French Southern Territories Gabon Gambia Georgia Germany Ghana Gibraltar Greece Greenland Grenada Guadeloupe Guam Guatemala Guernsey Guinea Guinea-Bissau Guyana Haiti Heard Island and McDonald Islands Honduras Hong Kong Hungary Iceland India Iran Iraq Ireland Isle of Man Israel Italy Ivory Coast Jamaica Japan Jersey Jordan Kazakhstan Kenya Kiribati Kuwait Kyrgyzstan Laos Latvia Lebanon Lesotho Liberia Libya Liechtenstein Lithuania Luxembourg Macao Madagascar Malawi Maldives Mali Malta Marshall Islands Martinique Mauritania Mauritius Mayotte Mexico Micronesia Moldova Monaco Mongolia Montenegro Montserrat Morocco Mozambique Myanmar Namibia Nauru Nepal Netherlands New Caledonia New Zealand Nicaragua Niger Nigeria Niue Norfolk Island North Korea North Macedonia Northern Mariana Islands Norway Oman Pakistan Palau Palestine, State of Panama Papua New Guinea Paraguay Peru Pitcairn Poland Portugal Puerto Rico Qatar Réunion Romania Russia Rwanda Saint Barthélemy Saint Helena, Ascension and Tristan da Cunha Saint Kitts and Nevis Saint Lucia Saint Martin (French part) Saint Pierre and Miquelon Saint Vincent and the Grenadines Samoa San Marino Sao Tome and Principe Saudi Arabia Senegal Serbia Seychelles Sierra Leone Sint Maarten (Dutch part) Slovakia Slovenia Solomon Islands Somalia South Africa South Georgia and the South Sandwich Islands South Korea South Sudan Spain Sri Lanka Sudan Suriname Svalbard and Jan Mayen Sweden Switzerland Syria Taiwan Tajikistan Tanzania Timor-Leste Togo Tokelau Tonga Trinidad and Tobago Tunisia Turkey Turkmenistan Turks and Caicos Islands Tuvalu Uganda Ukraine United States Minor Outlying Islands Uruguay Uzbekistan Vanuatu Vatican City Venezuela Virgin Islands, British Virgin Islands, U.S. Wallis and Futuna Western Sahara Yemen Zambia Zimbabwe