The short answer: declare first, and ask permission where it applies

In shortDo not start any outside work until you have told your line manager in writing and had a reply.

The safest working rule is: do not start any paid or unpaid outside work until you have told your line manager in writing and had a reply. Two published sources point to that.

  • The HMPPS Counter Corruption and Reporting Wrongdoing framework says staff must declare private interests that interfere or could interfere with their duties, and lists business interests, including secondary employment, among them.
  • The Civil Service Management Code says departments must require staff to seek permission before accepting any outside employment which might affect their work, either directly or indirectly.

'Might affect' is a low bar

It includes hours (tiredness, availability for overtime or shifts), conflicts of interest, use of skills or information from work, and reputational links.

Because most second jobs could arguably affect at least one of those, asking is the safe course even where you think the answer is obvious.

Which instruction applies

The detailed HMPPS process sits in PSI 28/2013 Outside Activities Policy, which the gov.uk PSI index (generated 10 July 2026) lists as extant but does not publish. The Counter Corruption framework also refers to it.

HMPPS's 2024/25 annual report names a Declaration and Management of Outside Interests Policy in connection with senior civil servants and delegated grades, and we could not confirm how it relates to PSI 28/2013 or whether it covers operational grades. Ask your HR team which applies to you.

What the published rules say, in order of authority

In shortThree layers apply: the Civil Service Code, the Management Code, and the HMPPS layer (PSI 28/2013 is unpublished).

The comparator is Scotland: the SPS Code of Conduct (23 February 2018) lists failure to obtain prior approval or permission for a second job as misconduct. That is not the England and Wales rule, but it shows how prison services treat the point.

1. Civil Service Code
Its integrity principle bars misusing your official position, for example by using information acquired in the course of your duties to further your private interests or those of others, and its impartiality principle requires that you do not act in a way that unjustifiably favours particular individuals or interests. Both apply to outside work: you cannot use what you learn in a prison to benefit a business.
2. Civil Service Management Code
As well as the permission rule, it requires staff to declare business interests, including directorships, and holdings of shares or other securities which they or their immediate family hold, to the extent they could further them through their official position. Staff must comply with later instructions on retention, disposal or management of such interests. Bankruptcy and insolvency must be reported, and so must arrests where bail is refused and convictions, with a traffic offence exception.
3. HMPPS layer
PSI 28/2013 and the conflict of interest process in the Counter Corruption framework. The former is unpublished. The latter says line managers and LCCMs keep a register and that completing the declaration form is not an admission of corruption.
Outside work rules by source (3 October 2026)
SourceWhat it saysStatus
Civil Service CodeNo misuse of position or information for private interests; impartialityPublic
Civil Service Management Code, ch. 4 (Nov 2016)Seek permission before outside employment that might affect work directly or indirectly; declare business interests and shares you could further through your positionPublic
Counter Corruption framework paras 4.26 to 4.31Declare private interests including secondary employment; register held by line manager and LCCMPublic
PSI 28/2013 Outside Activities PolicyDetail of approval and criteriaNot published on gov.uk
HMPPS Annual Report 2024/25Refers to a Declaration and Management of Outside Interests PolicyText not found
SPS Code of Conduct (Scotland)Misconduct to fail to obtain prior approval for a second jobComparator only

What managers typically weigh up

In shortOur practical reading: managers look at conflict, security and safety; sensitive roles get more scrutiny.

Because the criteria are not published for England and Wales, this section is our practical reading of the principles above, not a quotation.

A manager asked to approve outside work will usually be looking at three things: could the job conflict with your duties or reputation, could it compromise security, and could it affect your ability to do your day job safely.

Conflicts
Working for or with a supplier to your establishment, a company that employs ex-offenders you may supervise, a private security firm, bail hostels or housing providers for people leaving custody, or any role where you meet prisoners' relatives.
Security
Any role that gives access to prisoners' or staff personal data, or that publicly identifies you.
Safety and attendance
Night work or long shifts that could affect your fitness for duty, and any second job that clashes with your rota.
  • High scrutiny: work with HMPPS suppliers or contractors, private security, recruitment or transport of prisoners, bail or resettlement services, anything involving the public in a way that links to your role.
  • Medium scrutiny: second jobs with long or night hours, self-employment with online profiles, content creation that mentions your work.
  • Usually straightforward: hobby businesses, part-time retail or hospitality in a different sector, tutoring and coaching, family help, voluntary work.
Free toolMisconduct process navigatorA free, private walk-through of the published stages of an HMPPS conduct case, from informal conversation to appeal, with the points to check in your own establishment's policy. It does not store what you type.Open the free process navigator

How to ask: a step-by-step approach

In shortTreat it as a conversation, put it in writing and keep a copy.

The key to a smooth request is to treat it as a conversation rather than a form. Managers are more comfortable approving things they understand, and an unexplained request invites caution. Put it in writing, whether on the local form or by email, and keep a copy.

  1. Find out which instruction applies: ask your line manager or HR for PSI 28/2013 and any local declaration form, and ask whether the Declaration and Management of Outside Interests Policy applies to your grade.
  2. Describe the work factually: employer or business name, the type of work, hours per week, whether it includes nights or weekends, who the customers are and whether there is any link to prisons, prisoners, ex-offenders or HMPPS suppliers.
  3. State what you will do to avoid conflict: for example not using work information, not working at times that clash with your rota, not advertising your role.
  4. Ask for a decision in writing and for the review period, and note who decided.
  5. Wait for approval before you begin, even where you expect a yes.
  6. Tell your manager if anything changes: hours, the nature of the work, or your role at the prison.

Pay, overtime, tax and fatigue

In shortCompare an extra shift with a second job after tax, remember tax is your responsibility, and watch fatigue.

A second job is often about money, so it is worth setting it against what is available in your prison pay. Overtime and Payment Plus can add substantially to pay in many establishments.

Check before you commit

Tax

Tax is your responsibility. Income from self-employment must be reported to HMRC through Self Assessment above the usual thresholds, and income from a second employment is taxed through PAYE, often under a different tax code.

For the detail of self-employment rules, check HMRC directly.

Business ownership, online income and social media

In shortRunning a business, selling online or being a landlord all count as outside interests to declare, and online income raises social media rules.

Outside work is not only a job with an employer. The Civil Service Management Code's wording about business interests and about not using information from your official position to further private interests applies to self-employment just as it does to employment.

  • Running a small business
  • Selling online or content creation
  • Being a landlord
  • Paid personal training

Online income and social media

The Cabinet Office guidance on social media says civil servants remain bound by the Civil Service Code online, and the Management Code says staff must not make public statements or take part in activities drawing on their official experience without approval.

A business account that mentions being a prison officer, or content that relies on that experience, is a conflict with those rules. See our social media rules guide.

Directorships, shareholdings and politics

If you are a landlord, a company director or hold shares in a business that deals with HMPPS or related sectors, declare it. The Code asks about directorships and shareholdings that you could further through your position.

If you are an elected local councillor or a candidate, the political activity rules also apply, and you need permission in advance if you are not in the 'politically free' category. Which category covers prison grades is not published, so ask.

If your request is refused, or you started without asking

In shortIf refused, ask for the reason in writing; if you started without asking, declare now in writing and stop anything that could conflict.

Not declaring is a conduct issue in itself, and the longer it lasts the harder it is to explain. Do not wait for it to come out through a payslip, a social media post or a colleague.

Two situations

Permission refused

  • Ask for the reason in writing and whether anything would make it acceptable, such as a change of hours or customers
  • If you disagree, speak to your POA rep
  • The Management Code says refused political permission can be appealed to the Civil Service Appeal Board; for outside employment the appeal route is not published for HMPPS, and a note in the gov.uk PSI index suggests the Board's role has changed, so ask HR what applies
  • Use the grievance route if you need it; IRRIS handles bullying and harassment complaints, not disputes about permissions

Started without telling anyone

  • Declare now, in writing, and stop any activity that could conflict
  • HMPPS policy encourages early disclosure and describes sensitive and fair treatment for staff who come forward, though no outcome is guaranteed
Paid toolMisconduct Response PackChecklists, a personal timeline builder and question lists for the days after you are told there is a concern, to take to your POA rep or solicitor. It supports advice; it does not replace it.See the Misconduct Response Pack

Leaving HMPPS: starting work after you resign

In shortBusiness Appointment Rules normally apply for one year after leaving for staff below the Senior Civil Service, but most prison officers will never need one.

  • Normal periodOne yearAfter leaving, below the Senior Civil Service
  • Designated rolesUp to two yearsWhere the role is designated

The Civil Service Management Code includes Business Appointment Rules, which apply to civil servants who intend to take outside appointments after leaving.

For those below the Senior Civil Service the Rules normally apply for one year after leaving, unless the role is designated for up to two years, and individuals must consider whether an application is required before accepting a new appointment.

The Rules are mainly aimed at roles where a leaver could use their knowledge or contacts to benefit an organisation, so most prison officers will never need one.

If you plan to move to a supplier

If you plan to move to a supplier to HMPPS, a private security firm or a contracted prison operator, ask HR before you accept. The risk is to your reputation and sometimes your clearance. The Civil Service Code's duty not to disclose official information continues after you leave.

Our conduct and discipline hub has the wider process guides, and our guides to misconduct and future employment and prison officer pay bands are useful if you are weighing a move.

Frequently asked questions

Can a prison officer have a second job?

Often yes, but you must declare it and, under the Civil Service rule, seek permission before taking outside employment that might affect your work directly or indirectly. HMPPS's detailed rules (PSI 28/2013) are not published, so ask your HR team for the current policy and get the decision in writing before you start.

Do I need written permission for outside work in England and Wales?

The Civil Service Management Code requires departments to require staff to seek permission for outside employment that might affect work. Whether HMPPS requires prior written approval for every kind of outside activity is not published. Scotland's SPS lists failure to get prior approval as misconduct. Ask HR and get your answer in writing.

Is self-employment or a side business covered?

Yes in principle. The Counter Corruption framework refers to business interests and the Management Code requires declaration of business interests and directorships that could be furthered through your position. Declare it, describe it plainly and wait for a decision.

Can I work in security or at a bail hostel?

These are higher-scrutiny roles because they involve offenders or security links, so expect questions and possibly refusal. Declare before you apply. The HMPPS criteria are not published, so ask your line manager or HR how they would assess it.

What happens if I do not declare a second job?

It can become a conduct matter in itself. Nothing in the published text sets a specific penalty for England and Wales; the outcome depends on the facts and the policy in force. If you realise you should have declared, declare now in writing. HMPPS policy encourages early disclosure.

Can I be a councillor or take part in politics?

The Civil Service Management Code restricts political activity depending on category, and staff outside the 'politically free' category must seek permission for local or national activity. Which category applies to prison grades is not published, so ask HR before standing or campaigning.

Can I work for the same company after I leave?

The Business Appointment Rules in the Management Code normally apply for one year after leaving for staff below the Senior Civil Service, and individuals must consider whether an application is required. They are mainly aimed at roles where leaver knowledge could benefit a supplier. If a move involves HMPPS, ask HR first.

Sources