A MAR chart (medication administration record, also called a medicines administration record) is the document where care staff record every medicine they give, prompt or support a person to take. In home care it is a legal record of the support you provide, and it is one of the first things an inspector or auditor asks to see. This guide covers what a MAR chart must contain, how to complete it, what to do when something goes wrong, and what a manager should check when auditing.
TL;DR
- A MAR records each occasion of medicines support, who gave it, and whether the person took or declined it. It can be paper or electronic.
- Staff only support what the care plan says they will support, and they sign with the correct date and time as soon as possible after the person takes the medicine.
- Never erase, overwrite or backfill. One line through a paper error, initials, date and time, and tell the manager about any omission straight away.
- Managers audit for complete person details, accurate medicine entries, a signature or status code for every scheduled dose, and recorded reasons for non-administration.
- A clear care plan is what makes a MAR safe to follow, so the assessment and the plan matter as much as the chart itself.
Table of Contents
- What a MAR chart is and what it is for
- When you need a MAR chart
- What a MAR chart must contain
- How care staff complete a MAR chart
- MAR codes, missed doses and refusals
- Errors, omissions and gaps
- Controlled drugs
- Electronic MAR systems
- What managers check when auditing MAR charts
- Why the care plan comes first
- Save time on the care plan behind your MAR
- FAQ
- Sources
What a MAR chart is and what it is for
The Care Quality Commission (CQC) describes a medicines administration record as paper or electronic, and in homecare it records support for each individual prescribed or over-the-counter medicine, including who provided it and whether the person took or declined it.
That makes it more than a tick sheet. One council’s homecare procedure describes the MAR as a legal document recording the medication given, the assistance provided and the date and time, or the reason a dose was not given. It adds that statutory bodies such as the CQC or a coroner may use it as evidence.
In practice a MAR does three jobs:
- Safety. It tells the next carer what has been given, so doses are not missed or doubled.
- Accountability. It shows who supported which medicine, and when.
- Evidence. It lets your service show inspectors, commissioners and families that medicines support is being delivered as planned.
When you need a MAR chart
Not every conversation about medicines creates a MAR. One NHS trust’s domiciliary policy says a MAR is required when care workers administer medicines, prepare them for later, remind someone to take a specified named medicine, or remove a dose from its packaging at the person’s request.
The starting point is always the care plan. CQC’s guidance is that staff should provide only the support agreed and recorded in the care plan. If a carer finds themselves doing something the plan does not cover, that is a reason to stop and call the office, not to improvise.
What a MAR chart must contain
According to CQC, a home care MAR should include:
- the person’s name and date of birth
- their GP practice
- any known drug allergies
- for each medicine: name, formulation, strength, frequency or time, route, stop or review date, and specific instructions, such as whether to take it with food
The source for that list is the same CQC guidance on medicines administration records. It also says that when a visiting healthcare professional may administer medicines, providers should agree how that information will be available to care workers, so nothing is duplicated.
Name every medicine separately
A common mistake is to write the packaging rather than the medicines. Kirklees Council’s guidance says the MAR should name each medicine separately, and that writing only “Multi-Compartment Compliance Aid” does not evidence that all six rights are being followed.
The six rights
Good practice guidance from Bath, Swindon and Wiltshire lists the six rights as the right patient, drug, dose, formulation, route and the right to refuse. A well-built MAR makes each of them checkable at the door.
How care staff complete a MAR chart
The routine is the same on every visit. Teach it as a sequence:
- Check the care plan. Confirm what support the person has agreed to and what you are expected to record.
- Match the label to the MAR. Nottinghamshire’s June 2026 home care guidance says the current MAR must be reconciled against the dispensing label and the medicines available before support is given. If the label and MAR do not exactly match, staff must not support the medicine and must contact their line manager.
- Support the person. Follow the agreed level of help: administering, prompting or assisting.
- Sign straight away. CQC says to sign with the correct date and time as soon as possible after the person takes the medicine, and to record refusals.
- Keep it legible. Entries should be clear, accurate and readable by anyone who picks up the chart.
Pre-signing, signing for a colleague and filling in at the end of the shift all break the principle that the entry reflects what you saw happen.
MAR codes, missed doses and refusals
Most printed charts carry a key at the bottom with letters or numbers for outcomes such as given, refused or not available. The exact codes differ between chart suppliers, so train staff on the key printed on the charts your service actually uses, and make sure every code on it has a matching expectation in your medicines policy.
What does not change is the rule behind them. Bath, Swindon and Wiltshire’s guidance says that when a prescribed medicine has not been given or taken, staff should use the MAR codes and record the reason in the notes and care notes. A bare code with no reason is half a record.
When someone refuses
Sheffield’s medication policy says a refusal should be reported through the service’s escalation process, with the reason explored where possible and documented in the MAR and the communication or care notes. It also notes that the care plan may need review. A pattern of refusals is a care planning signal, not only a recording problem.
Errors, omissions and gaps
Paper charts need a clear correction method. Under Sheffield’s policy staff should not erase, overwrite or use correction fluid. They draw one line through a paper error so the original remains readable, then add initials or a signature, the date and the time.
An omission is different from a slip of the pen. For an omission, discrepancy, mismatch or near miss, the same policy says to record the facts, not guess or backfill, and inform the manager or on-call contact promptly, following incident, safeguarding and clinical escalation procedures.
Nottinghamshire’s guidance goes the same way: an unexplained gap, unavailable medicine or mismatch should not be silently filled in. Staff record what happened, tell the manager or on-call contact immediately, follow the incident and safeguarding procedure, and get clinical advice where the missed dose may be clinically significant.
If your team needs a consistent route from a medicines incident to a safeguarding report, our guide to safeguarding incident reporting in home care sets out the steps.

Controlled drugs
Controlled drugs usually carry extra recording on top of the standard MAR entry: typically receipt, administration, the quantity or dose given and the balance remaining, with secure storage and investigation of any discrepancy. The exact legal and local requirements depend on the drug’s schedule and on your provider’s accountable officer arrangements, so take the detail from your medicines policy and the relevant official guidance rather than from a general checklist.
Electronic MAR systems
Many providers now use electronic MARs. The same principles apply, with extra points to check. Nottinghamshire’s county council guidance says a signature or login must identify the person who made the entry, and that electronic systems should prevent unauthorised access and later alteration, avoid shared logins, retain audit trails and backups, and have downtime and hospital transfer procedures.
Before you rely on an electronic system, ask three practical questions:
- What happens on a visit when there is no signal or the device fails?
- Can a manager see who changed an entry and when?
- What does the carer do when a person is admitted to hospital mid-cycle?
Our practical guide to digital social care records looks at those questions across the wider record set.
What managers check when auditing MAR charts
CQC says adult social care providers must maintain secure, accurate and up-to-date medicines records for each person receiving medicines support, under Regulations 12 and 17 of the Health and Social Care Act 2008 (Regulated Activities) Regulations 2014, with the process set out in the provider’s medicines policy. It expects records to be legible, clear and accurate, signed by care workers, dated and timed, and completed as soon as possible after the person takes the medicine.
Nottinghamshire’s guidance gives a useful audit frame for a home care manager. Check:
- person details and allergies
- the cycle start date
- every prescribed medicine, with name, form, strength and directions
- warnings
- the accuracy of any handwritten transcription, and a second-person check where required
- a signature or status for every scheduled dose
- reasons for any non-administration
- medicine availability
- variable doses and PRN protocols
- expiry dates
This list comes from the June 2026 home care guidance, which also covers storage: the current MAR should be the only active paper chart in the person’s home, completed charts should be removed for audit and filed in the person’s record, and obsolete charts must be filed clearly so they cannot be used by accident.
For a wider view of what to audit beyond medicines, see care audits for UK home care, and for what inspectors look at overall, how to prepare for a CQC inspection.
A simple monthly routine
- Collect completed charts at the end of each cycle.
- Sample every carer, not only the ones you worry about.
- Look for gaps first, then for codes with no reason.
- Log each finding with an action and an owner.
- Feed patterns back into supervision and into the care plan.
Why the care plan comes first
Every MAR rule above points back to the care plan: staff support only what is agreed and recorded there, a refusal may trigger a plan review, and a mismatch between label and chart stops the visit. If the plan is thin, late or unclear, the chart cannot rescue it.
The weak point is usually time. An assessor comes back from a home visit with notes and then spends a long stretch typing up the plan and re-keying it into the care system. Medicines support details are exactly the sort of thing that gets abbreviated or delayed in that rush.
Our perspective
We built Weave inside Cera Care, and we see the same pattern in branch after branch: the medicines record is only as good as the care plan behind it. When the assessment is typed up days later from memory, the detail about who prompts, who administers and what the person prefers is the first thing to thin out.
That is why Voice To Care Plan starts at the assessment. The assessor talks through the visit on their phone, Weave drafts the care plan, and a member of staff checks it before anything is saved. Once it is checked, Weave fills in the forms in the care system your branch already runs, from a sidebar in Chrome. There is no system switch and no integration project.
Our branches use it every day, across more than 160 of them, and it cuts care plan write-up time by around 75%. We think the time it frees should go back into supervision, spot checks and audits, which is where MAR quality is actually protected.
John
Save time on the care plan behind your MAR
Weave is software for UK home care providers. With Voice To Care Plan, your assessor records the assessment on their phone, Weave drafts the care plan, and after a person has checked it, Weave completes the forms in your existing care system. Our data is kept in UK and EU data centres.

If you want to see how it fits your branch, try Voice To Care Plan or look at the sample assessment transcript to see what a recorded conversation turns into. You can also start from the Weave home page.
FAQ
Is a MAR chart a legal document?
Yes. One council’s homecare procedure describes it as a legal document recording the medication given, the assistance provided and the date and time, or the reason a dose was not given. Bodies such as the CQC or a coroner may use it as evidence, so treat every entry accordingly.
Do carers need a MAR chart when they only prompt?
It depends on the prompt. One NHS trust’s policy requires a MAR when staff remind someone to take a specified named medicine, as well as when they administer, prepare doses for later or remove a dose from its packaging. Check your own medicines policy and the care plan, and ask your manager if in doubt.
What should a carer do if they notice a missed signature?
They should not guess or fill it in afterwards. Local home care guidance says to record the facts, tell the manager or on-call contact promptly, and follow the incident and safeguarding procedure. Where the missed dose could be clinically significant, they should get clinical advice.
How long should completed MAR charts stay in the person’s home?
The Nottinghamshire guidance says the current chart should be the only active paper chart in the home. Completed charts are removed for audit and stored in the person’s file. Your own policy sets retention periods.
Can we use an electronic MAR instead of paper?
CQC says a medicines administration record may be paper or electronic. Electronic systems should identify who made each entry, prevent later alteration, avoid shared logins, keep audit trails and backups, and have procedures for downtime and hospital transfers.
Sources
- CQC: Medicines administration records in adult social care
- Derbyshire County Council: Management of medication and health related activities, homecare procedure
- Cambridgeshire and Peterborough NHS Foundation Trust: Medicines in the domiciliary setting policy
- Kirklees Council: Medication recording guidance
- Bath, Swindon and Wiltshire: MAR charts good practice guidance
- Nottinghamshire medicines management: Home based care and support providers guidance
- Nottinghamshire County Council: Management of medicines for home care and support providers
- Sheffield City Council: Medication policy
