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SCREENING

What counts as a sanctions match, and what to do with a possible one

How scores, aliases and dates of birth work, and the steps a reviewer takes before calling a match.

InackGuard editorial team6 min readUpdated October 2026
IF YOU READ NOTHING ELSE
A score shows where to look, not what to decide.
Dates of birth, countries and entity type settle most possible matches.
When you cannot tell, ask and pause; do not guess.
Record every decision with its evidence at the time it is made.

Why possible matches happen

Sanctions lists are written by governments for legal effect, not for easy searching. A listing may carry several spellings of a name, a few aliases, partial dates of birth and an approximate place. Your customer, meanwhile, typed their name into a form, perhaps without accents, perhaps with a middle name, perhaps in a different order.

Screening tools bridge that gap with fuzzy matching: they compare the name you have with every name and alias on the lists and score how close they are. A score is not a verdict. It is a measure of similarity that tells you where a person needs to look.

Most possible matches turn out to be someone else. That is normal and expected. The goal of a good process is not to avoid possible matches, but to resolve them quickly, consistently and with a record of why.

ONE POSSIBLE MATCH, AND THE FOUR THINGS THAT SETTLE IT
Name“Northwind Trading Ltd” vs listing “Northwind Trade”91% · alias
CountrySubject GB · listing RUdiffers
Date of birth or incorporationNot providedadd it
IdentifierRegistration number not on the listingcannot settle
Verdict so far: the country already differs, so this leans towards “not the subject”. Record that reason once and the match stays cleared on re-screening.

Strong, possible and weak

Most tools group results into tiers. The names differ, but the logic is similar:

A strong match: the name, or a listed alias, is identical or nearly identical, often with supporting details such as country or date of birth. Treat it as a likely hit and escalate.
A possible match: the name is close, but details are missing or conflicting. A person must review it.
A weak lead: some overlap, such as a shared surname with a different first name. Note it, but it rarely needs action on its own.

Tiers let you put your effort where it matters. If every result looks the same, reviewers either drown or start clearing things without looking.

The details that settle it

When a possible match comes up, compare the identifying details on the listing with what you know about your customer:

Date of birth or date of incorporation. A listed person born in 1962 is not your 28-year-old customer.
Nationality, country of residence or country of registration.
Place of birth, addresses, passport or registration numbers where listed.
Entity type. A company cannot be a listed individual, although a company can be owned or controlled by one.
Associated names, such as relatives or companies named in the listing.

One strong conflicting detail, like a clearly different date of birth, is usually enough to clear a possible match, provided you record it. One strong supporting detail, such as an identical passport number, moves it toward a confirmed match.

When you cannot tell

Sometimes the listing has too little detail and your file has too little information. In that case, do not guess. Ask the customer for what you need: date of birth, a copy of an identity document, a registration certificate or an explanation of ownership. Pause the onboarding or payment until you have it.

If you still cannot rule the match out, escalate to whoever owns sanctions decisions in your organisation. Many firms use a second reviewer for anything that is not clearly cleared, so that no single person makes a high-stakes call alone.

What to do with a confirmed match

A confirmed match on a sanctions list is serious. The exact obligations depend on the country and the list, but they commonly include:

Not proceeding with the transaction or relationship.
Freezing funds or assets that belong to the listed party, where required.
Reporting to the relevant authority within the required time.
Not tipping off the customer where that is prohibited.

Your written procedure should say who does each of these, and how quickly. If you do not have one, write it before you need it.

Recording the decision

The decision is only half the job. The other half is being able to show it later. For every possible match, keep:

What was searched, when, and against which lists, with the list dates.
The match itself: the listed name, the score and why it was raised.
The details you compared and what they showed.
Who decided, what they decided and why.
Anything you asked the customer for, and what came back.

An examiner or partner bank will ask how you cleared a match months after the fact. A record made at the time, and sealed so it cannot be changed, answers that question in minutes.

Keeping the noise down

High false-alert rates are the most common complaint about screening. A few practices help:

Collect date of birth and country at onboarding. They resolve most possible matches instantly.
Screen companies and individuals as what they are; do not let a person's name match a company listing at full strength.
Remember decisions. When the same customer is re-screened and nothing has changed, the earlier clearance should carry over.
Review your thresholds with evidence: look at how many alerts were cleared and why, then adjust and record the change.

A worked example

A payments company onboards Elena Petrova, born 14 March 1991, living in Lisbon. Screening returns a possible match at 88% to a listed Yelena Petrova, born 1958, nationality given as another country, listed for her role in a sanctioned company.

The reviewer compares: the name is a common transliteration variant, but the listed date of birth is 33 years earlier, the nationality differs and nothing links the customer to the sanctioned company. One strong conflict, the date of birth, is enough. The reviewer marks the match as not a match, records the reason and moves on in under two minutes.

Now change one detail: the customer gave no date of birth. The reviewer cannot rule the match out, so asks for an identity document and pauses onboarding. The document arrives the next day, shows 1991, and the match is cleared with the document attached to the record.

Checklist for reviewers

Read why the match was raised before deciding.
Compare date of birth, country, entity type and identifiers.
If one strong detail conflicts, clear and record why.
If nothing settles it, ask the customer and pause.
Escalate anything you would not defend alone.
Record the decision, reason and evidence every time.

Questions people ask

Can we clear a possible match on name alone? Rarely. A different name spelling is weak evidence, because transliteration produces many valid spellings. Look for a conflicting date of birth, country or entity type before clearing.

What if the customer refuses to give a date of birth? Treat the refusal as information. Many firms decline to proceed when a possible sanctions match cannot be resolved, and record why.

Should we screen owners and directors as well? For business customers, yes. A company can be clean while the person who controls it is listed, and many regimes treat companies owned or controlled by listed persons as restricted too.

A simple procedure you can adopt

Write the steps down so every reviewer follows the same path. A short procedure might read:

When a possible match appears, pause the onboarding or payment.
Open the match and read why it was raised: which name or alias matched, and the score.
Compare the listing's identifying details with what you hold: date of birth, nationality, country, entity type and identifiers.
If a strong detail conflicts, mark the match as not a match and write the reason in one sentence.
If details support the match, or nothing settles it, request information from the customer and escalate to the sanctions owner.
If the match is confirmed, follow your blocking and reporting steps without delay, and do not tell the customer why.
Record every step, with times and names.

Review a sample of cleared matches each month. If reviewers clear similar matches for different reasons, tighten the guidance.

Key terms

Fuzzy matching: Matching names that are close but not identical, such as spelling variants, transliterations and typos.
Alias: Another name a person or company is known by. Good screening checks listed aliases as well as the main name.
Transliteration: Writing a name from one script in another, such as Arabic or Cyrillic into Latin letters, which creates spelling variants.
Match score: A number showing how closely a name and its details match a listed record.
False positive: An alert that looks like a match but is not. Good tools reduce them without hiding real matches.
Designated person: A person or entity formally placed under sanctions by an authority.

Summary

Possible matches are a normal part of screening, not a sign that something is wrong. What matters is how quickly and consistently you resolve them, and whether you can show later how you did it. Collect date of birth and country at onboarding, read why each match was raised, compare the identifying details, and ask when you cannot tell.

Put it into practice.

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