Introduction
Every time a major vote approaches in Britain, a familiar warning ripples across social media: don't trust the pencil. The claim holds that polling stations deliberately equip booths with pencils - not pens - so that after you leave, an official, a party operative, or the security services can quietly rub out your mark and pencil in a different one. The recommended defence is always the same: bring your own pen. During the 2016 EU referendum the hashtags #UsePens and #Pencilgate were tweeted more than 50,000 times by the close of polls, and a YouGov poll for LBC reported that nearly a third of Leave voters believed British intelligence services might be involved in a plan to tamper with the vote.
It is worth taking the suspicion seriously rather than sneering at it. Distrust of institutions is not irrational in the abstract, the pencil really is provided, and elections genuinely are high-stakes events where the incentive to cheat exists. So the honest approach is to steelman the claim as strongly as the facts allow, and then follow the evidence to a verdict.
The strongest version of the claim
The best case for pencil suspicion rests on three points that are simply true:
- Pencils really are supplied. UK polling booths have, by long tradition, contained a pencil on a string for voters to mark their ballot. The Electoral Commission confirms this openly - it is not a secret and never has been. In Canada, poll workers are actually required by law to provide voters with black-lead pencils.
- A pencil mark can be erased. This is physically obvious. A graphite mark can be rubbed out in a way that a dried ballpoint line cannot be lifted cleanly.
- You are free to bring your own pen. Every election authority confirms there is no law requiring a pencil. The Electoral Commission states you are "completely free to bring your own pen or pencil." So a voter who distrusts the pencil is not breaking any rule by using a pen.
Add to this a reasonable prior: trust in politicians and institutions is low, elections have real consequences, and history contains plenty of genuine electoral malpractice. Given all that, asking "why pencils, then?" is not a stupid question. It deserves an answer rather than a dismissal.
What is actually true
The answer to "why pencils?" is disappointingly mundane. Election authorities give consistent, practical reasons that have nothing to do with tampering:
- Ink smudges and transfers. When a paper ballot is folded to preserve secrecy, wet ink can transfer to another part of the paper. If ink transfers next to a different candidate's box, the ballot can look like it marks two choices and may be rejected as spoilt. Pencil does not do this.
- Pens fail; pencils don't. Pens dry out, leak, or run out mid-day across tens of thousands of booths. A pencil is cheap, reliable, does not dry up, and won't tear the paper.
- It is a century-old tradition, not a policy of secrecy. The Electoral Commission has described it as "just a tradition" that has been used "for over 100 years."
Crucially, the authorities do not claim you must use a pencil. Full Fact, the Electoral Commission, Elections Canada, Snopes, PA Media and multiple UK outlets all confirm the same thing: pencil or pen, either is valid, and a pen mark is not grounds to reject a ballot.
What the evidence shows
The suspicion collapses not because the pencil can't be erased, but because of what happens to the ballot after it is marked.
Counting happens the same night, under adversarial scrutiny. In UK elections, sealed ballot boxes are transported to a central count and opened only under controlled conditions. The count is watched by candidates' agents and accredited observers from opposing parties, whose entire job is to catch irregularities. For a pencil-erasure conspiracy to work, it would have to survive the direct gaze of representatives of the very parties it was designed to cheat - people with every incentive and legal right to object. Candidates may even attach their own seals to boxes and verify them before opening.
Pen marks can be crossed out too. The Electoral Commission's most quietly devastating point is that the choice of implement changes nothing: "while pencil marks can be rubbed out, similarly, pen marks can be crossed out." A fraudster with unsupervised access to ballots does not need the marks to be in pencil. The pencil, therefore, is not the vulnerability - unsupervised access is, and that is precisely what the counting process denies.
No evidence has ever surfaced. The Electoral Commission has said it holds no data on any reports of pencil-cast votes being erased or changed. In the 2019 UK general election, recorded allegations of ballot-paper tampering nationwide numbered only a handful, and convictions were rarer still - orders of magnitude too few to swing a national result. In Australia, a 2013 parliamentary committee found no evidence of ballot manipulation. In the US, the Brennan Center's landmark study found voter-fraud incident rates between 0.0003% and 0.0025%, famously noting an American is likelier to be struck by lightning than to impersonate a voter.
Scale makes it implausible. To change a UK general election you would need to erase and rewrite hundreds of thousands of ballots across 650 constituencies, each counted independently in a different hall, each watched by rival agents, all without a single leak, photograph, or whistleblower in over a century. The logistical footprint of such a plot would dwarf the footprint of simply losing an election honestly.
When "caught on camera" tampering is examined, it evaporates. In a 2023 New South Wales election, a viral video appeared to show an official erasing votes. The electoral commission confirmed the official was doing routine internal administrative paperwork, filmed without permission - not touching anyone's ballot.
How the myth spreads
The pencil myth is a recurring template, not a one-off. It surfaced among "Yes" voters in the 2014 Scottish independence referendum, then exploded among "Leave" supporters during the 2016 EU referendum, complete with the MI5 framing and the #UsePens / #Pencilgate hashtags. It reappeared at the 2024 UK general election, prompting fresh fact-checks from Full Fact, PA Media and the Irish News.
The pattern is international. Elections Canada publicly rebutted "implausible" pencil rumours in 2019 and again during the 2025 federal election. In the US the variant swaps the pencil for a marker - "Sharpiegate" in Arizona in 2020, revived in 2024 - with the same structure: an ordinary stationery choice reframed as a covert plot, debunked by officials who point out the ink is recommended by the machine manufacturers. Egypt's 2012 presidential election even produced a "disappearing-ink pen" version pushed by a TV host. The stationery changes; the story does not. It thrives at moments of high stakes and low trust, when a losing side is looking for a mechanism that would let it discount an unwelcome result.
Verdict
Debunked. The premise is half-true and the conclusion is false. Pencils are provided, pencil can be erased, and you may bring a pen - but none of that gets you to fraud, because the security of the vote lives in the counting, not the marking. Sealed boxes, same-night counts, and adversarial scrutiny by rival candidates' agents make undetected mass erasure implausible, and after more than a century and repeated official investigations, no evidence of pencil-enabled vote-switching has ever been found. If you feel safer using a pen, use one - it is your right and it is perfectly valid. Just know that the pencil was never the threat.
Evidence Filters12
Pencils really are provided in UK polling booths
SupportingStrongIt is a verifiable fact that UK polling stations traditionally supply a pencil in each booth for marking the ballot. The Electoral Commission confirms this openly and describes it as a tradition over 100 years old. The factual premise of the claim is therefore genuine.
Rebuttal
True but insufficient. Provision of a pencil is not evidence of intent to tamper. The same authorities that confirm pencils are supplied also confirm you may use a pen, and that the pencil provides no route to undetected fraud because ballots are counted under scrutiny.
A pencil mark can physically be erased
SupportingStrongUnlike dried ink, a graphite pencil mark can be rubbed out cleanly. This is the physical intuition the theory rests on and it is genuinely correct.
Rebuttal
The Electoral Commission's answer is that a pen mark can be crossed out just as a pencil mark can be rubbed out, so the implement is not the vulnerability. The real protection is that nobody gains unsupervised access to marked ballots between casting and counting.
Voters are legally free to bring their own pen
SupportingNo UK law requires a pencil. The Electoral Commission states voters are 'completely free to bring your own pen or pencil'. In Canada the law even mandates that pencils be offered, while confirming a pen works equally well. A voter who distrusts the pencil breaks no rule by using a pen.
Rebuttal
This actually undercuts the conspiracy: if a pen defeated the alleged plot, and pens are freely allowed, the 'plot' would be trivially defeatable and therefore pointless. Authorities publicise the pen option precisely because there is nothing to hide.
Public trust in institutions and elections is low
SupportingA YouGov poll for LBC around the 2016 EU referendum found nearly a third of Leave voters believed British intelligence services might be involved in a plan to tamper with the vote. Widespread distrust makes the suspicion psychologically understandable and shows it resonated broadly.
Rebuttal
That a belief is widely held is not evidence it is true. Low trust explains why the myth spreads, but the substance still fails on the evidence: no documented case of pencil-erasure fraud exists after more than a century of pencil use.
Electoral malpractice does exist in the historical record
SupportingWeakGenuine electoral fraud - postal-vote abuse, personation, register manipulation - has occurred in various countries, so the general worry that elections can be gamed is not baseless.
Rebuttal
Real fraud that has been detected was caught precisely because safeguards work. The documented cases are rare, small-scale, and typically involve postal voting or the register - not in-person pencil erasure, which no investigation has ever substantiated.
The 'why pencils?' question is reasonable to ask
SupportingWeakIn an era of pens, the persistence of the pencil in polling booths is an oddity that naturally invites the question of why. Asking is legitimate.
Rebuttal
The question has a straightforward, boring answer: ink smudges and transfers across a folded ballot, pens dry out and leak, pencils are cheap and reliable. A reasonable question does not license an unevidenced sinister answer.
Ballots are counted the same night under adversarial scrutiny
DebunkingStrongSealed ballot boxes are opened and counted under the direct observation of candidates' agents from opposing parties and accredited observers, whose role is to catch irregularities. Candidates may attach their own seals and verify them. Mass erasure would have to happen in front of the very people it aimed to cheat.
No evidence of pencil-enabled vote-switching has ever been found
DebunkingStrongThe Electoral Commission holds no data on any report of pencil-cast votes being erased or changed. In the 2019 UK general election police recorded just 13 tampering allegations and one conviction. Australia's 2013 parliamentary committee found no evidence of ballot manipulation. After more than a century of pencil use, the alleged fraud has left zero footprint.
The implement is irrelevant: pen marks can be crossed out too
DebunkingStrongThe Electoral Commission notes that pencil marks can be rubbed out but pen marks can equally be crossed out, so a fraudster with unsupervised access would not need pencils at all. The security of the vote depends on preventing unsupervised access, not on the writing tool.
The scale required makes the plot implausible
DebunkingStrongAltering a UK general election would require erasing and rewriting hundreds of thousands of ballots across 650 independently counted constituencies, each watched by rival agents, with no leak, photo or whistleblower in over a hundred years. The conspiracy would be far larger and riskier than simply losing honestly.
Show 2 more evidence points
Alleged 'caught on camera' tampering evaporates on inspection
DebunkingA 2023 viral video appeared to show a New South Wales election official erasing votes. The NSW Electoral Commission confirmed the official was filmed without permission doing routine internal administrative paperwork, not altering any ballot. When 'evidence' is examined it consistently turns out to be innocent.
Multiple independent authorities have debunked it across countries
DebunkingThe UK Electoral Commission, Full Fact, PA Media, Snopes, Elections Canada, the NSW Electoral Commission and US officials (over 'Sharpiegate') have all independently rejected the ballot-marking fraud claim. The convergence of independent fact-checks and official bodies is strong evidence against a real cover-up.
Evidence Cited by Believers6
Pencils really are provided in UK polling booths
SupportingStrongIt is a verifiable fact that UK polling stations traditionally supply a pencil in each booth for marking the ballot. The Electoral Commission confirms this openly and describes it as a tradition over 100 years old. The factual premise of the claim is therefore genuine.
Rebuttal
True but insufficient. Provision of a pencil is not evidence of intent to tamper. The same authorities that confirm pencils are supplied also confirm you may use a pen, and that the pencil provides no route to undetected fraud because ballots are counted under scrutiny.
A pencil mark can physically be erased
SupportingStrongUnlike dried ink, a graphite pencil mark can be rubbed out cleanly. This is the physical intuition the theory rests on and it is genuinely correct.
Rebuttal
The Electoral Commission's answer is that a pen mark can be crossed out just as a pencil mark can be rubbed out, so the implement is not the vulnerability. The real protection is that nobody gains unsupervised access to marked ballots between casting and counting.
Voters are legally free to bring their own pen
SupportingNo UK law requires a pencil. The Electoral Commission states voters are 'completely free to bring your own pen or pencil'. In Canada the law even mandates that pencils be offered, while confirming a pen works equally well. A voter who distrusts the pencil breaks no rule by using a pen.
Rebuttal
This actually undercuts the conspiracy: if a pen defeated the alleged plot, and pens are freely allowed, the 'plot' would be trivially defeatable and therefore pointless. Authorities publicise the pen option precisely because there is nothing to hide.
Public trust in institutions and elections is low
SupportingA YouGov poll for LBC around the 2016 EU referendum found nearly a third of Leave voters believed British intelligence services might be involved in a plan to tamper with the vote. Widespread distrust makes the suspicion psychologically understandable and shows it resonated broadly.
Rebuttal
That a belief is widely held is not evidence it is true. Low trust explains why the myth spreads, but the substance still fails on the evidence: no documented case of pencil-erasure fraud exists after more than a century of pencil use.
Electoral malpractice does exist in the historical record
SupportingWeakGenuine electoral fraud - postal-vote abuse, personation, register manipulation - has occurred in various countries, so the general worry that elections can be gamed is not baseless.
Rebuttal
Real fraud that has been detected was caught precisely because safeguards work. The documented cases are rare, small-scale, and typically involve postal voting or the register - not in-person pencil erasure, which no investigation has ever substantiated.
The 'why pencils?' question is reasonable to ask
SupportingWeakIn an era of pens, the persistence of the pencil in polling booths is an oddity that naturally invites the question of why. Asking is legitimate.
Rebuttal
The question has a straightforward, boring answer: ink smudges and transfers across a folded ballot, pens dry out and leak, pencils are cheap and reliable. A reasonable question does not license an unevidenced sinister answer.
Counter-Evidence6
Ballots are counted the same night under adversarial scrutiny
DebunkingStrongSealed ballot boxes are opened and counted under the direct observation of candidates' agents from opposing parties and accredited observers, whose role is to catch irregularities. Candidates may attach their own seals and verify them. Mass erasure would have to happen in front of the very people it aimed to cheat.
No evidence of pencil-enabled vote-switching has ever been found
DebunkingStrongThe Electoral Commission holds no data on any report of pencil-cast votes being erased or changed. In the 2019 UK general election police recorded just 13 tampering allegations and one conviction. Australia's 2013 parliamentary committee found no evidence of ballot manipulation. After more than a century of pencil use, the alleged fraud has left zero footprint.
The implement is irrelevant: pen marks can be crossed out too
DebunkingStrongThe Electoral Commission notes that pencil marks can be rubbed out but pen marks can equally be crossed out, so a fraudster with unsupervised access would not need pencils at all. The security of the vote depends on preventing unsupervised access, not on the writing tool.
The scale required makes the plot implausible
DebunkingStrongAltering a UK general election would require erasing and rewriting hundreds of thousands of ballots across 650 independently counted constituencies, each watched by rival agents, with no leak, photo or whistleblower in over a hundred years. The conspiracy would be far larger and riskier than simply losing honestly.
Alleged 'caught on camera' tampering evaporates on inspection
DebunkingA 2023 viral video appeared to show a New South Wales election official erasing votes. The NSW Electoral Commission confirmed the official was filmed without permission doing routine internal administrative paperwork, not altering any ballot. When 'evidence' is examined it consistently turns out to be innocent.
Multiple independent authorities have debunked it across countries
DebunkingThe UK Electoral Commission, Full Fact, PA Media, Snopes, Elections Canada, the NSW Electoral Commission and US officials (over 'Sharpiegate') have all independently rejected the ballot-marking fraud claim. The convergence of independent fact-checks and official bodies is strong evidence against a real cover-up.
Timeline
Egypt's 'disappearing-ink pen' scare foreshadows the stationery-fraud template
During Egypt's presidential election, TV host Tawfiq Okasha claimed the Muslim Brotherhood had imported 180,000 disappearing-ink pens so that ballot marks would vanish before counting. No evidence was ever produced, but the episode showed how a mundane writing implement can be recast as an instrument of electoral fraud.
Source →Pencil suspicion emerges among 'Yes' voters in the Scottish independence referendum
The modern UK voting-pencil conspiracy is first documented among 'Yes' supporters during the 2014 Scottish independence referendum, who claimed pencil marks could be altered by officials after the vote.
Source →#UsePens and #Pencilgate explode during the EU referendum
On EU referendum polling day the theory went mainstream among 'Leave' supporters, with claims that MI5 could rub out pencil votes. The hashtags #usepens and #pencilgate were tweeted more than 50,000 times by the close of polls, and a YouGov poll for LBC found nearly a third of Leave voters thought intelligence services might tamper with the vote.
Source →Elections Canada pushes back on 'implausible' pencil rumours
Ahead of the Canadian federal election, Elections Canada publicly rebutted online rumours that pencil-marked ballots could be smudged or erased, explaining that ballots are counted under scrutiny and that a pen works just as well as the legally required pencil.
Source →US 'Sharpiegate' recasts the myth around markers in Arizona
After the 2020 US election, conspiracy theories claimed officials handed Trump voters Sharpies to bleed through and invalidate ballots. PolitiFact rated the claim False; Maricopa County said Sharpies were recommended for fast-drying ink and Arizona's Secretary of State confirmed in-person ballots were counted regardless of pen.
Source →Viral 'ballot tampering' video from a NSW election is debunked
A video shared online appeared to show an election official erasing votes during a New South Wales election. The NSW Electoral Commission confirmed the official had been filmed without permission while completing routine internal administrative paperwork, not altering any ballot.
Source →The pencil myth resurfaces at the UK general election and is fact-checked again
During the 2024 UK general election, social-media posts again urged voters to bring pens to prevent tampering. Full Fact, PA Media and the Irish News published fresh explainers reiterating that pencils are used for practical reasons, pens are permitted, and the Electoral Commission holds no data on pencil votes being erased.
Source →Elections Canada again confirms pen or pencil both count in the federal election
As the pencil rumour recirculated on X during Canada's 2025 federal election, Elections Canada reiterated that ballots count whether marked in pen or pencil, that the smudge-and-erase claim is false, and that ballots are sealed and counted in pairs before candidates' representatives.
Source →Myth resurfaces ahead of the May 2026 UK local and devolved elections
Ahead of the 7 May 2026 English local, Scottish Parliament and Senedd elections, the "take a pen — pencils let them rub out your vote" rumour circulated again. Full Fact and the Electoral Commission rebutted it once more: pencil marks can be rubbed out, but pen marks can equally be crossed out, and pencils do not increase the likelihood of fraud — while pen ink can smudge a folded ballot and risk spoiling the vote.
Source →
Verdict
The factual premise is partly true - UK polling stations do supply pencils by tradition, and voters are free to use their own pen - but the fraud conclusion is unsupported. Ballots are sealed and counted the same night under the scrutiny of candidates' agents and accredited observers, mass erasure would be immediately detectable, and no evidence of pencil-enabled vote-switching has ever been found. Pencils are used because ink can smudge, dry out or transfer across a folded ballot, and because a pen mark can be crossed out just as easily as a pencil mark can be rubbed out. Election authorities in the UK, Canada, Australia and the US have all rejected the claim.
What would change our verdicti
Documented, verifiable evidence that pencil-cast ballots have actually been erased and altered at a scale capable of changing a result - for example a forensic audit of sealed ballot boxes showing systematic rubbing-out, credible whistleblower testimony corroborated by physical evidence, or a court finding that counting-hall scrutiny (candidates' agents, observers, sealed boxes) failed to detect deliberate mark-switching. To date no election authority, court, police investigation or academic study has produced any such evidence.
Frequently Asked Questions
Are pencils really provided at UK polling stations?
Yes. It is a genuine, openly acknowledged fact that UK polling booths traditionally contain a pencil for marking the ballot. The Electoral Commission describes it as a tradition over a century old, used because pencils are cheap, reliable, won't run out of ink, and won't smudge or transfer marks when the ballot is folded. The provision of pencils is not a secret and is not evidence of any plot.
Can I bring my own pen to vote?
Yes, absolutely. There is no law requiring you to use a pencil, and the Electoral Commission states you are completely free to bring your own pen or pencil. Your vote is valid either way. The only practical caution is that wet ink can occasionally smudge onto another part of the folded ballot, which could make your intention unclear - but a clearly marked pen vote is counted normally.
If a pencil mark can be rubbed out, isn't that a real security hole?
The erasability of pencil is real, but it is not the vulnerability the theory imagines. The Electoral Commission points out that a pen mark can be crossed out just as easily as a pencil mark can be rubbed out, so switching to pen would not stop a determined fraudster. Security comes from the fact that no one gets unsupervised access to your ballot: boxes are sealed, transported, and counted the same night in front of candidates' agents and observers.
Has anyone ever actually been caught erasing pencil votes?
No. The Electoral Commission holds no data on any report of pencil-cast votes being erased or changed, and no election authority, court, police investigation or academic study has ever produced evidence of pencil-enabled vote-switching. When apparent 'evidence' surfaces - such as a 2023 viral video from New South Wales - it turns out on inspection to be innocent administrative work, not tampering.
Why not just switch everyone to pens to end the argument?
Some places do offer or encourage pens, and during the 2021 UK elections voters were even asked to bring their own for COVID reasons. But pencils solve real operational problems: pens dry out, leak and run out across tens of thousands of booths, and their ink can transfer across a folded ballot and cause it to be rejected as spoilt. Since the writing tool has no bearing on fraud risk anyway, there is no security reason to force a switch.
Is this the same as the US 'Sharpiegate' claim?
It's the same template with different stationery. 'Sharpiegate' claimed US officials handed out Sharpies so ink would bleed through and invalidate ballots. Officials and PolitiFact debunked it: Sharpies are actually recommended by voting-machine makers for fast-drying ink, and votes were counted regardless of pen. Egypt saw a 'disappearing-ink pen' version in 2012. In each case an ordinary marking tool is reframed as a covert plot, and in each case the evidence collapses.
Sources
Show 7 more sources
Further Reading
- articleDebunking the Voter Fraud Myth — Brennan Center for Justice (2017)
- articleDespite #sharpiegate, there's no evidence election officials gave voters Sharpies to invalidate votes for Trump — PolitiFact (2020)
- articleShould you take a pen to a polling station? — Full Fact (2024)
- articleVoting pencil conspiracy theory (2024)
- articleFact check: Pencils are normally used to vote as ink can obscure ballot papers — Will Grimond (PA Media) (2024)